Chronological List of Japanese Merchant Vessel Losses

JAPANESE MERCHANT VESSEL SUNK DURING WORLD WAR II
(Chronological)

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
December   8 1941 AWAJISAN MARU Passenger-Cargo 9,794 6-03N, 102-16E Australia Aircraft Sunk
  10  

TAKAO MARU

Passenger-Cargo 4,281 17-29N, 120-26E United States Army Aircraft U.S. Sabotage Sunk
  12   TORO MARU Cargo 1,939 6-08N, 102-16E Netherlands Submarine Sunk
  13   NIKKOKU MARU Cargo 2,728 13-00N, 110-00E Japan Marine Casualty Sunk
  14   MIHARU MARU Cargo 3,357 41-55N, 143-15E Japan Marine Casualty Sunk
  14   ZUIKO MARU Converted Gunboat 2,577 48-05N, 153-43E Japan Marine Casualty Sunk
  16   ATSUTASAN MARU Cargo 3,662 18-06N, 109-44E United States Submarine Sunk
  22   HAYO MARU Cargo 5,445 16-37N, 120-17E United States Submarine Sunk
  23   HAYATAKA MARU Cargo 856 17-35N, 120-12E United States Submarine Sunk
  23   KATORI MARU Cargo 9,849 2-30N, 110-00E Netherlands Submarine Sunk
  23   HIE MARU Passenger-Cargo 4,943 2-30N, 110-00E Netherlands Submarine Sunk
  26   UNYO MARU NO 2 Converted Salvage Vessel 2,827 1-34N, 110-213 Netherlands Aircraft Sunk
        12 Vessels 57,758        
January     1 1942 TEIUN MARU Cargo 1,615 16-05N, 120-20E Japan Mine Sunk
  3   MEIKO MARU Passenger-Cargo 4,383 18-18N, 109-42E Japan Marine Casualty Sunk
  7   UNKAI MARU NO 1 Cargo 2,225 34-27N, 138-59E United States Submarine Sunk
  9   TEIAN MARU Cargo 5,387 35-00N, 140-36E United States Submarine Sunk
  10   AKITA MARU Passenger-Cargo 3,317 7-40N, 102-50E Netherlands Submarine Sunk
  10   KANKO MARU Converted Gunboat 2,929 6-12N, 125-55E United States Submarine Sunk
  10   HARBIN MARU Transport 5,167 17-40N, 109-20E United States Submarine Sunk
  16   TAISHU MARU Cargo 1,220 42-00N, 139-00E Japan Marine Casualty Sunk
  17   FUKUSEI MARU Passenger-Cargo 5,822 31-00N, 122-00E Japan Marine Casualty Sunk
  17   SHINZUI MARU Cargo 2,964 25-03N, 121-04E Japan Marine Casualty Sunk
  13   EIZAN MARU Cargo 4,702 33-30N, 135-00E United States Submarine Sunk
  24   KURETAKE MARU Cargo 5,175 00-10N, 118-00E United States Surface Craft Sunk
  24   TSURUGA MARU Passenger-Cargo 6,988 00-10N, 118-00E United States Surface Craft Sunk
  24   TATSUKAMI MARU Passenger-Cargo 7,064 00-10N, 118-00E United States Surface Craft Sunk
  24   SUMANOURA MARU Passenger-Cargo 3,519 00-10N, 118-00E United States Surface Craft Sunk
  24   NANA MARU Passenger-Cargo 6,764 00-10N, 118-00E Netherlands Aircraft Sunk
  24   MYOKEN MARU Cargo 4,124 1-22N, 125-05E United States Submarine Sunk
        17 Vessels 73,865        

--29--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
February    1 1942 BORDEAUX MARU Passenger-Cargo 6,566 9-28N, 170-15E United States Surface Craft Sunk
  1   TOYOTSU MARU Converted Gunboat 2,930 9-28N, 170-15E United States Surface Craft Sunk
  2   TAMAGAWA MARU Passenger-Cargo 6,441 17-16N, 119-48E United States Submarine Sunk
  9   KURAMA Passenger-Cargo 6,783 East China Sea Unknown Unknown Sunk
  10   CHUWA MARU Cargo 2,719 25-30N, 122-38E United States Submarine Sunk
  14   INABASAN MARU Cargo 989 1-25S, 105-00E United States Great
Britain Netherlands
Army Aircraft
Aircraft
Aircraft
Sunk
  17   SHINYO MARU NO 5 Cargo 1,498 32-14N 127-14E United States Submarine Sunk
  21   SHOKYU MARU Cargo 4,434 32-10N, 126-28E United States Submarine Sunk
  25   FUJISHIMA MARU Cargo 4,376 35-09N, 140-18E Japan Marine Casualty Sunk
        9 Vessels 37,291        
March         1 1942 SAKURA MARU Passenger-Cargo 7,170 5-56S, 106-12E United States
United States
Australia
Netherlands
Netherlands
Army Aircraft
Surface Craft
Aircraft
Aircraft
Surface Craft
Sunk
  1   HORAI MARU Passenger-Cargo 9,192 5-56S, 106-12E United States
United States
Australian
Netherlands
Netherlands
Army Aircraft
Surface Craft
Aircraft
Aircraft
Surface Craft
Sunk
  1   KAIJO MARU NO 2 Tanker 8,636 4-52N, 151-20E United States Submarine Sunk
  2   KAMOGAWA MARU Aircraft Ferry 6,440 8-06S, 115-57E United States Submarine Sunk
  4   MORIOKA MARU Cargo 4,469 32-55N, 129-26E Japan Mine* Sunk
  4   TAKI MARU Cargo 1,244 28-37N, 129-10E United States Submarine Sunk
  4   ERIMO Tanker 6,500 4-19S, 108-25E United States Submarine Sunk
  4   UNKNOWN MARU Cargo 4,000e 32-33N, 133-26E United States Submarine Sunk
  10   YOKOHAMA MARU Cargo 6,143 7-01S, 147-07E United States Army Aircraft Navy Carrier-Based Aircraft Sunk
  10   KONGO MARU Converted Light Cruiser 8,624 6-49S, 147-02E United States Navy Carrier-Based Aircraft Sunk
  10   TENYO MARU Converted Minesweeper 6,843 6-49S, 147-02E United States Navy Carrier-Based Aircraft Sunk
  10   KOSEI MARU Passenger-Cargo 6,667 16-05N, 120-20E Japan Mine Sunk
  11   FUKUSHU MARU Cargo 1,454 30-53N, 126-20E United States Submarine Sunk
  13   CHICHIBU MARU Cargo 1,520 33-53N, 139-29E United States Submarine Sunk
  17   YUBARI MARU Cargo 4,109 3-05S, 114-21E Netherlands Aircraft* Sunk
* Probable Agent

--30--

Date    Name of Vessel    Typeof Vessel Gross
Tonnage
Location Flag of
Agent
Typeof Agent Assessment
March         17 1942 ISHIKARI MARU Cargo 3,291 27-05N, 142-05E United States Submarine Sunk
  26   UNKNOWN MARU Cargo 4,000e 32-31N, 127-10E United States Submarine Sunk
  27   KITANO MARU Passenger-Cargo 7,951 16-10N, 120-24E Japan Mine* Sunk
  27   UNKNOWN MARU Passenger-Cargo 4,000e 33-53N, 127-33E United States Submarine Sunk
  30   CHOKO MARU Cargo 842 5-39S, 119-00E United States Submarine Sunk
        20 Vessels 103,095        
April         1 1942 YAE MARU Cargo 6,731 5-42N, 98-57E Great
Britain
Submarine Sunk
  1   SHUNSEI MARU Cargo 4,939 5-42N, 93-57E Great
Britain
Submarine Sunk
  10   SADO MARU Cargo 3,039 34-52N, 139-15E United States Submarine Sunk
  11   TAIJUN MARU Cargo 1,274 6-49S, 147-02E United States Army Aircraft Sunk
  13   RYUJIN MARU Cargo 6,243 31-51N, 132-50E United States Submarine Sunk
  17   UNKNOWN MARU Cargo 4,000e 10-53N, 121-35E United States Submarine Sunk
  18   KOMAKI MARU Transport 8,525 4-12S, 152-10E United States Army Aircraft Sunk
  23   UNKNOWN MARU Trawler 1,000e 28-22N, 153-18E United States Submarine Probably sunk
  25   TOBA MARU Cargo 6,995 17-01N, 120-15E United States Submarine Probably sunk
        9 Vessels 42,796        
May             1 1942 CALCUTTA MARU Passenger-Cargo 5,339 28-07N, 123-45E United States Submarine Sunk
  2   UZAN MARU Cargo 5,014 33-26N, 135-52E United States Submarine Sunk
  4   KINJOSAN MARU Cargo 3,262 8-44N, 150-56E United States Submarine Sunk
  4   KONGOSAN MARU Converted Gunboat 2,119 33-32N, 136-05E United States Submarine Sunk
  6   KANAN MARU Cargo 2,567 12-05N, 109-35E United States Submarine Sunk
  6   TAIEI MARU Cargo 2,209 28-42N, 123-50E United States Submarine Sunk
  6   TAIGEN MARU Passenger-Cargo 5,660 28-19N, 123-33E United States Submarine Sunk
  8   BUJUN MARU Cargo 4,804 12-00N, 111-10E United States Submarine Sunk
  8   TAIYO MARU Transport 14,457 30-40N, 127-54E United States Submarine Sunk
  9   UNKNOWN MARU Cargo 4,000e 33-48N, 136-03E United States Submarine Probably sunk
  10   ORIDONO MARU Cargo 5,278 7-00S, 112-40E Japan Mine* Sunk
  12   SHOEI MARU Converted Salvage Vessel 5,644 4-51S, 152-54E United States Submarine Sunk
  13   SHONAN MARU Cargo 5,264 34-39N, 139-10E United States Submarine Sunk
  13   NAGASAKI MARU Transport 5,268 33-00N, 129-40E Japan Mine Sunk
  15   TOYOHARA MARU Cargo 805 33-34N, 125-09E United States Submarine Sunk
  17   UNKNOWN MARU Cargo 4,000e 33-23N, 135-33E United States Submarine Sunk
  17   TAZAN MARU Passenger-Cargo 5,478 6-22N, 103-36E United States Submarine Sunk
  25   KITAKATA MARU Cargo 2,380 34-53N, 140-04E United States Submarine Sunk
  25   TOKYO MARU Tanker 902 27-03N, 127-03E United States Submarine Sunk
  25   SHOKA MARU Cargo 4,467 4-07N, 143-32E United States Submarine Sunk
  28   GANGES MARU Passenger-Cargo 4,382 9-00N, 111-00E United States Submarine Sunk
* Probable Agent

--31--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
May             28 1942 TATSUFUKU MARU Cargo 1,946 7-27N, 116-17E United States Submarine Sunk
  29   UNKNOWN MARU Cargo 1,900e 7-33N, 116-18E United States Submarine Sunk
  30   ATSUTA MARU Transport 7,983 26-07N, 129-06E United States Submarine Sunk
        24 Vessels 105,123        
June           1 1942 KOFUKU MARU Passenger-Cargo 5,822 16-16N, 96-18E United States Army Aircraft Sunk
  4   TOYOHASHI MARU Passenger-Cargo 7,031 7-30N, 93-10E Great
Britain
Submarine Sunk
  12   BURMA MARU Cargo 4,584 10-08N, 102-34E United States Submarine Sunk
  14   TAIZAN MARU Cargo 3,930 35-00N, 125-00E Japan Marine Casualty Sunk
  15   NAMPO MARU Converted Gunboat 1,206 14-20N, 120-20E United States Submarine Sunk
  18   TAIRYU MARU Cargo 2,209 34-33N, 125-53E Japan Marine Casualty Sunk
  18   NISSAN MARU Cargo 6,537 51-58N, 177-40E United States Army Aircraft Sunk
  21   KEIJO MARU Converted Gunboat 2,626 9-003, 160-00E United States Submarine Sunk
  28   SAIKYO MARU Converted Gunboat 1,292 12-41N, 136-22E United States Submarine Sunk
  30   UNKAI MARU NO 5 Cargo 3,282 30-04N, 122-54E United States Submarine Sunk
        10 Vessels 38,519        
July           1 1942 MONTEVIDEO MARU Transport 7,267 18-37N, 119-29E United States Submarine Sunk
  2   UNYO MARU NO 3 Cargo 2,997 30-30N, 120-25E United States Submarine Sunk
  7   HARUNA MARU Passenger-Cargo 10,420 34-36N, 138-06E Japan Marine Casualty Sunk
  8   TENZAN MARU Passenger-Cargo 2,776 4-00S, 151-50E United States Submarine Sunk
  9   SHINSHO MARU Motor Torpedo Boat Tender 4,836 8-43N, 167-33E United States Submarine Sunk
  12   HIYAMA MARU Cargo 6,171 13-48N, 109-33E United States Submarine Sunk
  13   MIKAGE MARU NO 3 Cargo 3,111 33-00N, 133-00E Japan Marine Casualty Sunk
  13   SHINYO MARU Passenger-Cargo 4,163 13-04N, 109-39E United States Submarine Sunk
  16   HAKODATE MARU Cargo 5,302 12-55N 109-29E United States Submarine Sunk
  22   AYATOSAN MARU Transport 9,788 8-50S, 148-50E United States
Australian
Army Aircraft
Aircraft
Sunk
  24   UNKNOWN MARU Cargo 1,500e 45-05N, 147-27E United States Submarine Sunk
  28   UNKNOWN MARU Transport 4,000e 33-21N, 139-24E United States Submarine Sunk
        12 Vessels 62,331        
August       1 1942 MEIWA MARU Cargo 2,921 41-12N, 141-36E United States Submarine Sunk
  2   ZENYO MARU Passenger-Cargo 6,441 5-36N, 99-53E Netherlands Submarine Sunk
  3   NANIWA MARU Cargo 4,353 7-37N, 150-18E United States Submarine Sunk
  5   BRASIL MARU Transport 12,752 9-50N, 150-38E United States Submarine Sunk
  6   OHIO MARU Passenger-Cargo 5,372 13-51N, 113-15E United States Submarine* Sunk
  6   PALAO MARU Passenger-Cargo 4,495 9-04N, 150-54E United States Submarine Sunk
* Probably sunk

--32--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
August       7 1942 SHOFUKU MARU Converted Net Tender 891 9-22N, 170-12E United States Submarine Sunk
  8   KOTOKU MARU Transport 6,701 7-01N, 147-07E United States Army Aircraft Sunk
  8   KANO MARU Cargo 8,572 51-58N, 177-33E United States Army Aircraft Surface Craft Sunk
  8   MEIYO MARU Transport 5,628 4-52S, 152-43E United States Submarine  
  8   NIKKEI MARU Passenger-Cargo 5,811 33-33N, 135-23E United States Submarine Sunk
  8   BIFUKU MARU Passenger-Cargo 2,559 41-14N, 141-32E United States Submarine Sunk
  12   UNKNOWN MARU Cargo 4,000e 33-02N, 136-00E United States Submarine Sunk
  14   HACHIGEN MARU Passenger-Cargo 3,113 5-07N, 119-37E United States Submarine Sunk
  21   SHINSEI MARU NO 6 Passenger-Cargo 4,928 6-45N, 158-10E United States Submarine Sunk
  22   UNKNOWN MARU Transport 4,000e 26-07N, 121-29E United States Submarine Sunk
  24   CUBA MARU Passenger-Cargo 5,950 48-00N, 142-30E Japan Marine Casualty Sunk
  24   SEIKAI MARU Passenger-Cargo 3,109 38-12N, 141-30E United States Submarine Sunk
  25   KINRYU MARU Converted Light Cruiser 9,310 7-47S, 160-13E United States Marine Land- Based Aircraft Sunk
  25   SHOWA MARU Cargo 1,349 3-55N, 118-59E United States Submarine Probably sunk
  25   SENYO MARU Converted Gunboat 2,904 22-23N, 120-10E United States Submarine Sunk
  26   TEISHUN MARU Cargo 2,251 27-05N, 121-23E United States Submarine Sunk
  31   EIFUKU MARU Cargo 5,866 25-43N, 122-38E United States Submarine Sunk
        23 Vessels 114,281        
September 2 1942 TEIKYU MARU Cargo 2,332 42-08N, 141-15E United States Submarine Sunk
  4   KASHINO Supply Ship 4,000e 25-43N, 122-33E United States Submarine Sunk
    4 CHITA MARU Cargo 2,276 40-10N, 141-53E Unites States Submarine Sunk
  4   TENYU MARU Cargo 3,738 40-14N, 141-51E United States Submarine Sunk
  4   KAIMEI MARU Cargo 5,254 40-14N, 141-51E United States Submarine Sunk
  7   TAIKA MARU Cargo 2,204 25-31N, 121-33E United States Submarine Sunk
  11   KANTO MARU Aircraft Ferry 8,606 3-16S, 118-29E United States Submarine Sunk
  12   NIYO MARU Cargo 1,350 20-15N, 92-35E Great
Britain
Aircraft Sunk
  19   SHIROGANE MARU Passenger-Cargo 3,130 6-33S, 156-05E United States Submarine Sunk
  21   TONE MARU Cargo 4,070 31-18N, 123-27E United States Submarine Sunk
  21   KOEI MARU Converted Net Tender 863 6-54N, 151-51E United States Submarine Sunk
  25   TEIBO MARU Cargo 4,472 10-31N, 109-31E United States Submarine Sunk
  28   NOJIMA MARU Cargo 7,189 51-58N, 177-33E United States Army Aircraft Sunk
  28   TAMON MARU NO 6 Cargo 4,994 40-35N, 141-50E United States Submarine Sunk
        14 Vessels 54,478        
October     1 1942 YOKE I MARU Cargo 2,860 33-35N, 135-15E United States Submarine Sunk
  1   LISBON MARU Transport 7,053 29-57N, 122-56E United States Submarine Sunk
  1   TOSEI MARU Cargo 2,432 41-20N, 141-35E United States Submarine Sunk
  1   KATSURAGI MARU Aircraft Ferry 8,033 5-51S, 153-18E United States Submarine Sunk

--33--

4-13S, 152-11E
Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
October     3 1942 KINKAI MARU Cargo 5,852 38-46N, 142-02E United States Submarine Sunk
  4   SETSUYO MARU Cargo 4,147 39-48N, 142-08E United States Submarine Sunk
  7   MIDORI MARU Passenger-Cargo 5,827 31-00N, 122-30E Japan Marine Casualty Sunk
  7   SENKAI MARU Passenger-Cargo 2,095 1-55N, 153-42E United States Submarine Sunk
  7   NAMINOUE MARU Transport 4,731 3-51S, 151-21E United States Submarine Sunk
  8   BORNEO MARU Cargo 5,863 51-56N, 177-27E United States Army Aircraft Sunk
  8   HAGUE MARU Passenger-Cargo 5,641 34-06N, 136-22E United States Submarine Sunk
  9   HACHIMANZAN MARU Cargo 2,461 33-27N, 136-01E United States Submarine Sunk
  10   SHIGURE MARU Cargo 2,445 1-01S, 117-23E United States Submarine Sunk
  11   KICHIEI MARU Cargo 2,012 35-00N, 125-00E Japan Marine Casualty Sunk
  14   TEISON MARU Transport 7,007 25-22N, 121-15E United States Submarine Sunk
  14   SUMIYOSHI MARU Cargo 1,921 3-20S, 150-03E United States Submarine Sunk
  14   SHUNKO MARU Cargo 6,781 5-35N, 144-25E United States Submarine Sunk
  14   TAKUSEI MARU Cargo 3,515 39-33N, 142-15E United States Submarine Sunk
  15   KYUSHU MARU Passenger-Cargo 8,666 9-25S, 159-55E United States Army AircraftNavy Land-
Based Aircraft Marine Land-
Based Aircraft
Sunk
  15   SASAKO Passenger-Cargo 9,258 9-25S, 159-55E United States Navy Land-
Based Aircraft Marine Land-
Based Aircraft
Sunk
  15   AZUMASAN Passenger-Cargo 7,623 9-25S, 159-55E United States Army AircraftNavy Carrier-
Based Aircraft Navy Land-
Based AircraftMarine Land-
Based Aircraft
Sunk
  17   HOLLAND MARU Cargo 5,869 32-21N, 132-04E United States Submarine Sunk
  18   HAKONESAN MARU Cargo 6,673 38-46N, 142-03E United States Submarine Sunk
  20   RYUNAN MARU Cargo 5,106 34-08N, 136-46E United States Submarine Sunk
  20   YAMAFUJI MARU Cargo 5,359 24-26N, 120-26E United States Submarine Sunk
  20   AFRICA MARU Cargo 9,475 24-26N, 120-26E United States Submarine Sunk
  21   CHOKO MARU Passenger-Cargo 6,783 3-30S, 150-30E United States Submarine Sunk
  21   UNKNOWN MARU Cargo 4,000e 27-03N, 122-42E United States Submarine Sunk
  21   NICHIHO MARU Cargo 6,363 27-03N, 122-42E United States Submarine Sunk
  22   HAKKAISAN MARU Converted Gunboat 3,311 3-30S, 175-15E United States Surface Craft Sunk
  23   SEIKYO MARU Converted Gunboat 2,608 33-45N, 135-25E United States Submarine Sunk
  24   KENUN MARU Cargo 4,643 41-24N, 141-50E United States Submarine Sunk
  25   KOTOBUKI MARU NO 5 Converted Net Tender 720 United States Army Aircraft Sunk
  26   KEIZAN MARU Cargo 2,864 50-09N, 155-37E United States Submarine Sunk
  27   UNKNOWN MARU Passenger-Cargo 4,000e 10-20N, 108-43E United States Submarine Sunk
  31   UNKNOWN MARU Cargo 3,000e 4-40S, 118-54E United States Submarine Probably sunk
        36 Vessels 176,997        

--34--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
November    1 1942 BIWA MARU Cargo 3,350 3-54S, 109-13E Japan Marine Casualty Sunk
  2   YASUKAWA MARU Passenger-Cargo 6,710 8-41S, 148-27E United States Army Aircraft Sunk
  2   GIFU MARU Cargo 2;933 6-14N, 126-07E United States Submarine Sunk
  3   TEKKAI MARU Cargo 1,925 32-02N, 126-15E United States Submarine Sunk
  3   SAGAMI MARU Passenger-Cargo 7,189 7-02N, 125-33E United States Submarine Sunk
  3   CHKUGO MARU Cargo 2,461 20-18N, 108-39E United States Submarine Sunk
  8   KEIKO MARU Converted Gunboat 2,929 6-22N, 126-03E United States Submarine Sunk
  10   UNKNOWN MARU Cargo 4,000e 7-12N, 150-47E United States Submarine Sunk
  11   KOBE MARU Transport 7,938 31-27N, 124-13E Japan Marine Casualty Sunk
  11   TENZAN MARU Cargo 3,142 31-27N, 124-13E Japan Marine Casualty Sunk
  11   HOKOKU MARU Converted Light Cruiser 10,439 20-00S, 93-00E Great
Britain Netherlands
Surface Craft Surface Craft Sunk
  11   VENICE MARU Passenger-Cargo 6,571 35-36N, 123-44E United States Submarine Sunk
  14   SHINANOGAWA MARU Cargo 7,503 8-30S, 158-45E United States Army Aircraft Navy Carrier-
Based Aircraft Marine Carrier-
Based Aircraft
Sunk
  14   NAKO MARU Cargo 7,145 8-30S, 158-45E United States Army Aircraft Navy Carrier-
Based Aircraft Marine Carrier-
Based Aircraft
Sunk
  14   NAGARA MARU Passenger-Cargo 7,148 8-30S, 158-45E United States Army Aircraft Navy Carrier-
Based Aircraft Marine Carrier-
Based Aircraft
Sunk
  14   SADO MARU Cargo 7,180 8-30S, 158-45E United States Army Aircraft Navy Carrier-
Based Aircraft Marine Carrier-
Based Aircraft
Sunk
  14   CANBERRA MARU Cargo 6,477 3-30S, 158-45E United States Army Aircraft Navy Carrier-
Based Aircraft Marine Carrier-
Based Aircraft
Sunk
  14   BRISBANE MARU Cargo 5,425 8-30S, 158-45E United States Army Aircraft Navy Carrier-
Based Aircraft Marine Carrier-
Based Aircraft
Sunk

--35--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
November   14 1942 ARIZONA MARU Cargo 9,684 8-30S, 158-45E United States Army Aircraft Navy Carrier-
Based Aircraft Marine Land-
Based Aircraft
Sunk
  15   YAMAZUKI MARU Cargo 6,439 9-20S, 159-50E United States Navy Land-
Based Aircraft
Marine Land-
Based Aircraft
Sunk
  15   YAMAURA MARU Cargo 6,798 9-20S, 159-50E United States Army Aircraft
Navy Land-
Based Aircraft
Marine Carrier-
Based Aircraft
Surface Craft
Sunk
  15   KINUGAWA MARU Cargo 6,937 9-20S, 159-50E United States Army Aircraft
Navy Land-
Based Aircraft
Marine Land-
Based Aircraft
Surface Craft
Sunk
  15   HIROKAWA MARU Cargo 6,872 9-20S, 159-50E United States Army Aircraft
Navy Land-
Based Aircraft
Marine Land-
Based Aircraft
Surface Craft
Sunk
  16   BOSTON MARU Transport 5,477 6-18N, 135-20E United States Submarine Sunk
  17   OREGON MARU Converted Salvage Vessel 5,873 14-46N, 119-44E United States Submarine Sunk
  18   HAVANA MARU Passenger-Cargo 5,652 6-48S, 155-49E United States Army Aircraft Sunk
  22   KHAI DINH Cargo 5,110 20-58N, 106-40E United States Army Aircraft Sunk
  26   CHERIBON MARU Cargo 4,016 52-45N, 173-15E United States Army Aircraft Sunk
  27   RYOKUSEI MARU Cargo 1,907 23-11N, 113-14E United States Army Aircraft Sunk
  30   UNKAI MARU NO 3 Cargo 3,023 Off Japan Unknown Unknown Probably sunk
        30 Vessels 168,253        
December   4 1942 MANSEI MARU Passenger-Cargo 7,770 23-30N, 119-34E Japan Marine Casualty Sunk
  7   HINO MARU NO 3 Passenger-Cargo 4,391 23-59N, 138-43E United States Submarine Sunk
  8   HE IN AN MARU Cargo 661 00-52N, 118-54E United States Submarine Sunk
  10   KAMOI MARU Cargo 5,355 4-56S, 154-58E United States Submarine Sunk
  12   GYOKUZAN MARU Cargo 1,970 40-19N, 142-27E United States Submarine* Sunk
  16   GENZAN MARU Passenger-Cargo 5,708 41-10N, 141-32E United States Submarine* Sunk
  16   SHINGO MARU Cargo 4,740 a-10N, 141-32E United States Submarine Sunk
  17   BANDOENG MARU Passenger-Cargo 4,003 4-54S, 154-17E United States Submarine Sunk
* Probable Agent

--36--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
December   20 1942 UNKNOWN MARU Cargo 4,000e 35-45N, 140-55E United States Navy Mine Sunk
  22   TEIFUKU MARU Cargo 5,198 34-52N, 139-49E United States Submarine Sunk
  24   TAMA MARU NO 2 Cargo 515 6-15S, 150-10E United States Array Aircraft Sunk
  24   AMAKASU MARU NO 1 Converted Water carrier 1,913 19-16N, 166-37E United States Submarine Sunk
  25   BANSHU MARU NO 2 Cargo 1,000 9-00S, 124-00E United States Submarine Sunk
  26   IWAMI MARU Passenger-Cargo 773 8-44S, 158-06E United States Army Aircraft Navy Carrier-
Based Aircraft
Sunk
  27   ITALY MARU Transport 5,859 4-15S, 152-10E United States Army Aircraft Sunk
  27   TSURUGISAN MARU Cargo 3,108 4-13S, 152-11E United States Army Aircraft Sunk
  28   CHOYO MARU Cargo 5,388 24-46N, 120-40E United States Submarine Sunk
  28   OMI MARU Passenger-Cargo 3,393 6-23N, 160-17E United States Submarine Sunk
  29   FUKKEN MARU Passenger-Cargo 2,558 20-04N, 109-18E United" States Navy Mine* Sunk
  29   AZUSA MARU Cargo 540 8-39S, 158-00E United States Army Aircraft Marine Land-
Based Aircraft
Sunk
  29   HACHIAN MARU Cargo 2,733 4-45S, 113-54E United States Submarine Sunk
  30   TOMIURA MARU Passenger-Cargo 3,821 4-15S, 152-10E United States Army Aircraft Sunk
  30   URAJIO MARU Cargo 3,110 51-58N, 177-33E United States Army Aircraft Sunk
  30   UNKNOWN MARU Cargo 4,000e 00-41N, 148-52E United States Submarine Sunk
  30   HITERU MARU Cargo 5,857 00-41N, 148-52E United States Submarine Sunk
        25 Vessels 88,364        
January     1 1943 RENZAN MARU Cargo 4,999 39-11N, 141-44E United States Submarine Sunk
  5   KOTOHIRA MARU Cargo 6,101 53-00N, 173-10E United States Army Aircraft Sunk
  5   KEIFUKU MARU Cargo 5,333 4-21S, 152-17E United States Army Aircraft Sunk
  5   MONTREAL MARU Cargo 6,577 52-40N, 178-15E United States Army Aircraft Sunk
  7   NICHIRYU MARU Passenger-Cargo 5,447 6-30S, 149-00E United States Army Aircraft Sunk
  8   MYOKO MARU Cargo 4,103 6-49S, 147-04E United States Army Aircraft Sunk
  9   YOSHINOGAWA MARU Cargo 1,430 6-13S, 156-00E United States Submarine Sunk
  13   IWASHIRO MARU Cargo 3,550 9-54N, 167-07E United States Submarine Sunk
  14   SHIRAHA MARU Cargo 5,693 9-12N, 130-38E United States Submarine Sunk
  15   NICHIMEI MARU Cargo 4,704 13-30N, 98-30E United States Army Aircraft Sunk
  16   CHIFUKU MARU Passenger-Cargo 5,857 4-00S, 151-55E United States Submarine Sunk
  16   KINPOSAN MARU Cargo 3,261 2-47S, 149-10E United States Submarine Sunk
  17   UNKNOWN MARU Cargo 4,000e 34-31N, 137-43E United States Submarine Sunk
  17   HEIYO MARU Passenger-Cargo 9,315 10-13N, 151-25E United States Submarine Sunk
  18   SENSAN MARU Cargo 2,775 3-53S, 149-20E United States Army Aircraft Sunk
  18   TOKACHI MARU Cargo 1,932 6-50S, 112-12E Japan Mine Sunk
  18   TOEI MARU Tanker 10,023 6-21N, 150-23E United States Submarine Sunk
* Probable Agent

--37--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
January     19 1943 MYOHO MARU Cargo 4,122 5-30S, 156-00E United States Submarine Sunk
  20   SOMEDONO MARU Passenger-Cargo 5,154 3-52N, 153-56E United States Submarine Sunk
  20   SURABAYA MARU Cargo 4,391 3-52N, 153-56E United States Submarine Sunk
  20   MEIU MARU Cargo 8,230 3-52N, 153-56E United States Submarine Sunk
  21   KENKON MARU Transport 4,575 6-12S, 155-51S United States Submarine Sunk
  21   UNKNOWN MARU Cargo 2,934e 11-25N, 109-22E United States Submarine Sunk
  22   TETSUZAN MARU Cargo 1,922 4-15S, 152-10E United States Army Aircraft Sunk
  22   UNKNOWN MARU Cargo 4,000e 3-55S, 152-07E United States Submarine Sunk
  22   HASSHU MARU Passenger-Cargo 1,873 5-40S, 120-35E United States Submarine Sunk
  26   USHIO MARU Cargo 749 13-26N, 121-16E United States Submarine Sunk
  26   TOKAI MARU Passenger-Cargo 8,358 13-27N, 144-37E United States Submarine Sunk
  26   UNKNOWN MARU Cargo 4,000e 2-37N, 139-42E United States Submarine Sunk
  26   BUYO MARU Transport 5,447 1-55N, 139-14E United States Submarine Sunk
  26   FUKUEI MARU NO 2 Cargo 1,901 1-55N, 139-14E United States Submarine Sunk
  27   SHOAN MARU Passenger-Cargo 5,624 14-15N, 153-43E United States Submarine Sunk
  29   NICHIUN MARU Cargo 2,723 6-21S, 156-04E United States Submarine Sunk
  31   TOA MARU NO 2 Cargo 6,732 7-50S, 156-50E United States Marine Land-
Based Aircraft
Sunk
        34 Vessels 158,885        
February     1 1943 FUSHIMI MARU Passenger-Cargo 10,935 34-16N, 138-17E United States Submarine Sunk
  2   KENKOKU   954        
  6   GISHO MARU Cargo 543 4-30S, 151-30E United States Army Aircraft Sunk
  3   SHOTOKU MARU Cargo 1,146 35-26N, 132-33E Japan Marine Casualty Sunk
  8   KUSUYAMA MARU Cargo 5,306 22-40N, 119-12E United States Submarine Sunk
  8   TATSUTA MARU Transport 16,975 33-45N, 140-25E United States Submarine Sunk
  12   TIEN LEE Cargo 2,184 40-00N, 143-00E Japan Mine Sunk
  14   HITACHI MARU Cargo 6,540 6-45S, 155-50E United States Navy Land-
Based Aircraft
Sunk
  14   HIROTAMA MARU Converted Gunboat 1,911 4-11S, 117-45E United States Submarine Sunk
  15   KOKOKU MARU Cargo 544 5-32S, 150-09S United States Army Aircraft Sunk
  15   SURUGA MARU Cargo 991 6-27S, 156-02E United States Submarine Sunk
  15   TATEYAMA MARU Cargo 1,990 39-18N, 142-08E United States Submarine Sunk
  16   HYUGA MARU Cargo 994 13-30N, 145-47E United States Submarine Sunk
  19   HIBARI MARU Cargo 6,550 6-45S, 155-50E United States Submarine
Navy Land-
Based Aircraft
Sunk
  19   UNKNOWN MARU Cargo 6,500e 6-45S, 155-50E United States Army Aircraft Sunk
  19   AKAGANE MARU Cargo 3,121 53-05N, 171-22E United States Surface Craft Sunk
  20   SHINKOKU MARU Passenger-Cargo 3,991 15-09N, 159-30E United States Submarine Sunk
  21   KUWAYAMA MARU Cargo 5,724 7-53S, 119-13E United States Submarine Sunk
  27   KIRIKAWA MARU Transport 3,836 7-30S, 136-40E United States Army Aircraft Navy Land-
Based Aircraft
Sunk

--38--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
February     27 1943 ASAKASAN MARU Passenger-Cargo 8,709 15-53N, 97-40E United States Army Aircraft Sunk
  28   KASHII MARU Cargo 3.218 34-39N, 138-58E Japan Marine Casualty Sunk
        21 Vessels 92,662        
March         2 1943 KYOKUSEI MARU Cargo 5,493 5-05S, 148-28E United States Army Aircraft Sunk
  2   TOEN MARU Tanker 5,232 3-29S, 117-17E United States Submarine Sunk
  3   KEIZAN MARU Cargo 2,319 38-00N, 119-00E Japan Marine Casualty Sunk
  3   KEMBU MARU Cargo 953 7-15S, 148-30E United States Army Aircraft Sunk
  3   TAIMEI MARU Cargo 2,883 7-15S, 148-30E United States Australia Army Aircraft
Aircraft
Sunk
  3   SHINAI MARU Cargo 3,793 7-15S, 148-30E United States Australia Army Aircraft
Aircraft
Sunk
  3   TEIYO MARU Cargo 6,869 7-15S, 148-30E United States Australia Army Aircraft
Aircraft
Sunk
  3   NOJIMA Collier 4,500e 7-15S, 148-30E United States Australia Army Aircraft
Aircraft
Sunk
  3   AIYO MARU Cargo 2,746 7-15S, 148-30E United States Australia Army Aircraft
Aircraft
Sunk
  3   OIGAWA MARU Cargo 6,493 7-15S, 148-30E United States
United States
Australia
Army Aircraft
Surface Craft
Aircraft
Sunk
  3   NICHIYU MARU Passenger-Cargo 6,817 10-22N, 145-21E United States Submarine Sunk
  4   HOKUTO MARU Cargo 2,270 42-00N, 141-00E Japan Mine* Sunk
  6   KIRIHA MARU Cargo 3,057 00-001, 145-00E United States Submarine Sunk
  8   HISASHIMA MARU Cargo 2,742 41-16N, 142-27E United States Submarine Sunk
  10   KAIJO MARU Tanker 3,270 5-33S, 122-55E United States Army Aircraft Sunk
  12   TAIHOSAN MARU Converted Water Carrier 1,805 7-15N, 159-10E United States Submarine Sunk
- 13   KASUGA MARU NO 2 Cargo 3,967 11-40N, 92-50E Netherlands Submarine Sunk
  13   MOMOYAMA MARU Cargo 5,217 2-45S, 143-20E United States Army Aircraft Sunk
  13   KOSEI MARU Cargo 3,262 29-04N, 129-17E United States Submarine Sunk
  15   MOMOHA MARU Cargo 3,103 00-00N, 145-00E United States Submarine Sunk
  19   TAKACHIHO MARU Transport 8,154 26-00N, 122-18E United States Submarine Sunk
  19   ZOGEN MARU Cargo 1,428 38-29N, 122-19E United States Submarine Sunk
  19   KOWA MARU Transport 3,217 38-27N, 122-18E United States Submarine Sunk
  21   NITTSU MARU Cargo 2,183 38-05N, 124-33E United States Submarine Sunk
* Probable Agent

--39--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
March         21 1943 HOZAN MARU Cargo 2,260 38-11N, 124-33E United States Submarine Sunk
  22   MEIGEN MARU Cargo 5,434 6-31S, 112-47E United States Submarine Sunk
  23   UNKNOWN MARU Cargo 2,427e 38-37N, 121-01E United States Submarine Sunk
  23   KENYO MARU Cargo 6,486 17-16N, 144-56E United States Submarine Sunk
  24   TAKAOSAN MARU Cargo 2,076 39-01N, 122-25E United States Submarine Sunk
  25   SATSUKI MARU Cargo 827 38-10N, 123-26E United States Submarine Sunk
  25   UNKNOWN MARU Cargo 2,556e 38-13N, 123-24E United States Submarine Sunk
  28   FUNAKAWA MARU Tanker 862 41-22N, 141-22E Japan Marine Casualty Sunk
  28   SUWA MARU Transport 10,672 19-13N, 166-34E United States Submarine Sunk
  29   TOHO MARU Tanker 9,997 00-00N, 118-18E United States Submarine Sunk
  29   YAMABATO MARU Cargo 2,556 30-26N, 129-41E United States Submarine Sunk
  30   KUROHIME MARU Cargo 4,697 00-22S, 147-46E United States Submarine Sunk
  31   NANSHNI MARU Cargo 4,911 34-13N, 133-06E Japan Marine Casualty Sunk
        37 Vessels 147,540        
April         2 1943 FLORIDA MARU Passenger-Cargo 5,854 2-40S, 150-40E United States Army Aircraft Sunk
  2   TOYO MARU NO 2 Cargo 4,163 7-23N, 149-13E United States Submarine Sunk
  3   ARIMA MARU Passenger-Cargo 7,389 10-26N, 135-00E United States Submarine Sunk
  4   KOA MARU Cargo 2,024 13-11N, 161-57E United States Submarine Sunk
  7   KOSEI MARU Passenger-Cargo 8,237 8-50N, 147-06E United States Submarine Sunk
  7   FUKUEI MARU Cargo 1,113 41-00N, 142-00E United States Submarine* Sunk
  8   TOYO MARU Cargo 1,916 10-26N, 135-00E United States Submarine Sunk
  9   OYAMA MARU Cargo 3,809 00-32N, 150-05E United States Submarine Sunk
  9   SHANGHAI MARU Cargo 4,103 13-11N, 121-45E United States Submarine Sunk
  9   PENANG MARU Cargo 5,214 5-29S, 123-02E United States Submarine Sunk
  12   SAPPORO MARU NO 12 Cargo 2,865 41-23N, 141-30E United States Submarine Sunk
  14   INDIA MARU Cargo 5,872 3-25S, 143-40E United States Army Aircraft Sunk
  14   SYDNEY MARU Passenger-Cargo 4,105 4-10S, 144-55E United States Army Aircraft Sunk
  15   KAIHEI MARU Cargo 4,575 21-06N, 151-45E United States Submarine Sunk
  17   TRAN NINH Cargo 1,463 10-30N, 107-00E Japan Marine Casualty Sunk
  17   NISSHIN MARU NO 2 Tanker 17,579 Off Formosa Unknown Unknown Sunk
  17   AMAHO MARU Cargo 2,769 42-04N, 143-22E United States Submarine Sunk
  17   TATSUNAN MARU Cargo 6,417 6-50S, 155-45E United States Navy Mine Sunk
  18   NISSHUN MARU Cargo 6,380 1-55N, 148-24E United States Submarine Sunk
  20   SUMERUSAN MARU Passenger-Cargo 1,871 6-51S, 112-45E Japan Marine Casualty Sunk
  20   KOSEI MARU Cargo 864 3-30S, 143-30S United States Army Aircraft Sunk
  20   MEIJI MARU NO 1 Converted Gunboat 1,934 37-10N, 141-25E United States Submarine Sunk
  22   YAMAZATO MARU Passenger-Cargo 6,925 3-28N, 99-47E Netherlands Submarine Sunk
  24   KASUGA MARU Cargo 1,377 41-43N, 141-21E United States Submarine Sunk
* Probable Agent

--40--

Date Name of Vessel Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
April         27 1943 YUZAN MARU Passenger-Cargo 6,380 33-08N, 143-03E United States Submarine Sunk
  23   KAMAKURA MARU Transport 17,526 10-18N, 121-44E United States Submarine Sunk
        26 Vessels 132,724        
May             1 1943 KEISHIN MARU Converted Gunboat 1,434 37-04N, 141-06E United States Submarine Sunk
  2   TAMON MARU Cargo 8,156 27-18N, 121-38E United States Submarine Sunk
  4   SAN CLEMENTE MARU Tanker 7,354 6-54N, 134-55E United States Submarine Sunk
  5   HAKKAI MARU Cargo 2,921 34-11N, 137-41E United States Submarine Sunk
  5   KINKO MARU Cargo 1,263 38-39N, 122-36E United States Submarine Sunk
  5   DAIFUKU MARU Cargo 3,194 38-39N, 122-36E United States Submarine Sunk
  7   TAMON MARU NO 5 Passenger-Cargo 5,260 40-05N, 141-53E United States Submarine Sunk
  7   TOSEI MARU Cargo 4,363 36-05N, 123-21E United States Submarine Sunk
  8   TOMIOKA MARU Cargo 970 5-12S, 145-50E United States Army Aircraft Sunk
  8   SUMIDA MARU Cargo 546 5-12S, 145-50E United States Army Aircraft Sunk
  9   ASO MARU Cargo 703 9-09N, 122-50E United States Submarine Sunk
  9   TAKAO MARU Passenger-Cargo 3,204 38-57N, 141-49E United States Submarine Sunk
  9   JINMU MARU Cargo 1,912 38-57N, 141-49E United States Submarine Sunk
  10   TATSUTAKE MARU Passenger-Cargo 7,068 14-29N, 149-002 United States Submarine Sunk
  10   KINAI MARU Passenger-Cargo 8,360 14-29N, 149-00E United States Submarine Sunk
  11   YODOGAWA MARU Cargo 6,441 00-47S, 149-02E United States Submarine Sunk
  12   SUMATRA MARU Cargo 5,862 12-43N, 124-08E United States Submarine* Sunk
  14   HOUN MARU Cargo 1,917 6-47S, 155-51E United States Marine Land-Based Aircraft Sunk
  15   MEIKAI MARU Passenger-Cargo 3,197 13-07N, 121-49E United States Submarine Sunk
  15   INDUS MARU Passenger-Cargo 4,361 13-07N, 121-49E United States Submarine Sunk
  17   WOOSUNG MARU Cargo 3,090 35-00N, 140-00E Japan Marine Casualty Sunk
  17   ENGLAND MARU Cargo 5,330 1-00S, 148-40E United States Submarine Sunk
  18   TERUSHIMA MARU Converted Gunboat 3,110 8-45N, 170-30E United States Submarine Probably sunk
  20   BANGKOK MARU Converted Light Cruiser 5,350 5-47N, 169-42E United States Submarine Sunk
  26   TAINAN MARU Cargo 1,989 37-03N, 141-09E United States Submarine Sunk
  26   KAGI MARU Transport 2,343 28-45N, 129-37E United States Submarine Sunk
  26   SHOEI MARU Cargo 3,580 14-17N, 144-53E United States Submarine Sunk
  27   KOCHI MARU Cargo 2,910 8-41N, 134-02E United States Submarine Sunk
  28   KAMIKAWA MARU Converted Seaplane Tender 6,853 1-36S, 150-24E United States Submarine Sunk
  28   SEIKI MARU Cargo 1,036 50-38N, 155-15E United States Submarine Sunk
  28   AKATSUKI MARU Tanker 10,216 27-32N, 126-08E United States Submarine Sunk
  29   EISHO MARU Cargo 2,486 17-35N, 110-45E United States Submarine Sunk
  30   TAKAMISAN MARU Cargo 1,992 30-07N, 124-32E United States Submarine Sunk
  30   SHOKO MARU Cargo 5,335 30-07N, 124-32E United States Submarine Sunk
        34Vessels 134,661        
* Probable Agent

--41--

35-02N, 140-14E
Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
June           1 1943 NOBORIKAWA MARU Cargo 2,182 United States Submarine Sunk
  5   SHINTOKU MARU Cargo 780 6-50S, 155-45S United States Navy Carrier-
Based Aircraft
Sunk
  6   SHINEI MARU Cargo 973 7-00N, 123-37E United States Submarine Sunk
  3   KAHOKU MARU Converted Gunboat 3,350 9-07N, 134-31E United States Submarine Sunk
  11   GENOA MARU Cargo 6,785 7-36N, 134-17E United States Submarine Sunk
  11   JINBU MARU Cargo 5,228 50-23N, 155-36E United States Submarine Sunk
  11   HIDE MARU Cargo 5,256 2-47N, 152-00E United States Submarine Sunk
  11   SEINAN MARU Cargo 1,338 41-00N, 141-30E United States Submarine* Sunk
  13   KONAN MARU Passenger-Cargo 5,226 6-05N, 138-25E United States Submarine Sunk
  13   SUZUYA MARU Cargo 901 3-08S, 151-24E United States Submarine Sunk
  15   KOYO MARU Cargo 6,435 33-55N, 127-38E United States Submarine Sunk
  15   SHINJU MARU Cargo 3,617 39-13N, 142-00E United States Submarine Sunk
  15   SANRAKU MARU Tanker 3,000 5-09N, 119-38E United States Submarine Sunk
  17   MYOKO MARU Passenger-Cargo 5,087 2-03S, 153-44E United States Submarine* Sunk
  19   TOKIWA MARU Cargo 6,971 32-31N, 126-19E United States Submarine Sunk
  19   MIYADONO MARU Passenger-Cargo 5,196 1-38N, 148-14E United States Submarine Sunk
  20   SHOJIN MARU Cargo 4,739 24-39N, 118-52E United States Submarine Sunk
  20   MEITEN MARU Cargo 4,474 15-57N, 140-55E United States Submarine Sunk
  21   HONGKONG MARU Transport 2,797 Off Formosa Unknown Unknown Sunk
  23   SAGARA MARU Converted Seaplane Tender 7,189 33-45N, 138-10E United States Submarine Sunk
  25   IBURI MARU Passenger-Cargo 3,291 39-34N, 142-06E United States Submarine Sunk
  26   SHINRYU MARU Passenger-Cargo 4,936 48-06N, 153-15E United States Submarine* Sunk
  26   TOYO MARU Passenger-Cargo 4,163 33-22N, 138-56E United States Submarine Sunk
  26   SHOZAN MARU Cargo 5,859 33-22N, 138-56E United States Submarine Sunk
  23   SHOTOKU MARU Converted Gunboat 1,964 14-10N, 145-03E United States Submarine Sunk
  29   MIKAGE MARU NO 8 Cargo 3,371 45-04N, 142-03E Japan Marine Casualty Sunk
        26 Vessels 105,108        
July           1 1943 YONEYAMA MARU Passenger-Cargo 5,274 00-20N, 119-32E United States Submarine Sunk
  2   KASHI MARU Cargo 654 8-06S, 157-20E United States Army Aircraft Sunk
  2   CANTON MARU Cargo 2,820 25-07N, 119-18E United States Submarine Sunk
  2   BANSHU MARU NO 7 Cargo 5,430 52-30N, 156-12E United States Submarine Sunk
  2   ISUZU MARU Cargo 2,866 13-36N, 121-49E United States Submarine Sunk
  3   ANZAN MARU Cargo 3,890 38-08N, 124-20E United States Submarine Sunk
  3   KOKURYU MARU Passenger-Cargo 6,112 38-08N, 124-20E United States Submarine Sunk
  4   NIKKYU MARU Cargo 6,529 34-31N, 138-35E United States Submarine Sunk
  4   KOKI MARU Cargo 5,290 28-40N, 124-10E United States Submarine Sunk
  4   LIVERPOOL MARU Cargo 5,865 28-40N, 124-10E United States Submarine Sunk
  6   BANSHU MARU NO 33 Cargo 737 43-35N, 140-21E United States Submarine Sunk
* Probable Agent

--42--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
July           7 1943 SHOWA MARU Passenger-Cargo 2,212 43-14N, 139-53E United States Submarine Sunk
  11   TAIKO MARU Cargo 1,925 12-53N, 131-49E United States Submarine Sunk
  12   TAIRYO MARU Cargo 1,423 20-52N, 106-41E United States Army Aircraft Sunk
  12   CHIKUZAN MARU Cargo 1,840 20-52N, 106-41E United States Army Aircraft Sunk
  12   NIITAKA MARU Passenger-Cargo 2,478 43-02N, 140-00E United States Submarine Sunk
  15   URADO MARU Passenger-Cargo 1,336 33-59N, 132-44E Japan Marine Casualty Sunk
  17   FUZAN MARU Cargo 1,972 46-57N, 141-42E Japan Marine Casualty Sunk
  19   MIKAGE MARU NO 20 Passenger-Cargo 2,718 18-34N, 166-20E United States Submarine Sunk
  21   SAIPAN MARU Transport 5,533 16-18N, 134-09E United States Submarine Sunk
  24   MIE MARU Cargo 2,913 2-45S, 133-40E Australia Mine Sunk
  25   THAMES MARU Cargo 5,871 2-40N, 148-26E United States Submarine Sunk
  27   TEIKIN MARU Cargo 1,972 19-57N, 109-05E United States Navy Mine* Sunk
  28   TAMISKIMA MARU Cargo 1,931 13-52N, 97-50E United States Army Aircraft Sunk
  30   RYUZAN MARU Cargo 4,720 6-31S, 111-26E United States Submarine Sunk
        25 Vessels 84,361        
August       1 1943 MOGAMIGAWA MARU Aircraft Ferry 7,497 11-16N, 153-34E United States Submarine Sunk
  3   KAISHO MARU Passenger-Cargo 6,070 5-18S, 111-52E United States Submarine Sunk
  5   SHOJU MARU Passenger-Cargo 2,022 24-37N, 152-45E United States Submarine Sunk
  8   TANGSHAN MARU Cargo 2,103 42-00N, 142-00E Japan Marine Casualty Sunk
  8   NARUTO MARU Aircraft Ferry 7,149 24-12N, 142-51E United States Submarine Sunk
  9   SEKKO MARU Passenger-Cargo 3,133 24-51N, 122-12E United States Submarine Sunk
  10   WAKANOURA MARU Passenger-Cargo 2,411 46-53N, 143-30E United States Submarine Sunk
  13   EDO MARU Converted Gunboat 1,299 23-24N, 142-26E United States Submarine Sunk
  20   CHOSA MARU Converted Gunboat 2,538 5-09N, 100-10E Netherlands Submarine Sunk
  20   NIKKYO MARU Cargo 5,434 34-14N, 136-39E Japan Marine Casualty Sunk
  20   SEITAI MARU Cargo 3,404 42-15N, 139-53E United States Submarine Sunk
  20   SEIZAN MARU Cargo 955 00-53N, 119-01E United States Submarine Sunk
  22   GLASGOW MARU Cargo 5,831 Indian Ocean Unknown Unknown Sunk
  22   RYOKAI MARU Cargo 4,655 42-40N, 139-48E United States Submarine Sunk
  22   KAISHO MARU Passenger-Cargo 4,164 10-09N, 147-25S United States Submarine Sunk
  22   NISHIYAMA MARU Cargo 3,016 2-40N, 137-10E United States Submarine Sunk
  23   HEITO MARU Cargo 4,468 9-10N, 92-50E United States Army Aircraft Sunk
  23   ATAKA MARU Passenger-Cargo 5,248 34-37N, 137-53E United States Submarine Sunk
  27   MEIZAN MARU Passenger-Cargo 5,480 13-13N, 121-23E United States Submarine* Sunk
  27   TAIFUKU MARU Passenger-Cargo 3,520 32-27N, 132-24E United States Submarine Sunk
  29   CHOJUN MARU Cargo 2,246 34-23N, 128-55E Japan Marine Casualty Sunk
  30   TAIBUN MARU Passenger-Cargo 6,531 41-53N, 141-10E United States Submarine Sunk
  31   SHOTO MARU Passenger-Cargo 5,254 28-27N, 123-03E United States Submarine Sunk
  31   KOKKO MARU Cargo 5,486 28-27N, 123-03E United States Submarine Sunk
        24 Vessels 100,064        
* Probable Agent

--43--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
September 1 1943 FUSEI MARU Passenger-Cargo 2,256 31-28N, 127-24E United States Submarine Sunk
  2   BUSAN MARU Cargo 1,990 42-21N, 149-59E Japan Marine Casualty Sunk
  2   HANKOW MARU Passenger-Cargo 4,105 3-35S, 143-39E United States Army Aircraft Sunk
  2   NAGATO MARU Cargo 5,901 3-35S, 143-39E United States Army Aircraft Sunk
  3   AKAMA MARU Cargo 5,600 41-00N, 141-30E United States Submarine* Sunk
  3   TAGONOURA MARU Cargo 3,521 34-10N, 140-12E United States Submarine Sunk
  4   HEIJO MARU Converted Gunboat 2,627 5-32N, 156-23E United States Submarine Sunk
  4   KOZAN MARU Passenger-Cargo 4,180 22-22N, 120-04E United States Submarine Sunk
  5   TENKAI MARU Cargo 3,203 1-10N, 142-10E United States Submarine Sunk
  6   KOFUKU MARU Cargo 3,209 38-00N, 138-25E Japan Marine Casualty* Sunk
  6   ANNAN MARU Cargo 2,941 16-46N, 96-10E United States Army Aircraft Sunk
  6   MILAN MARU Cargo 5,467 16-46N, 96-10E United States Army Aircraft Sunk
  6   SHOGEN MARU Cargo 3,362 42-13N, 142-16E United States Submarine Sunk
  8   HAKUTETSU MARU NO 13 Cargo 1,334 2-44N, 141-36E United States Submarine Sunk
  9   KOYO MARU Cargo 3,010 35-20N, 140-40E United States Submarine* Sunk
  9   KOSHIN MARU Cargo 1,358 34-21N, 127-51E Japan Marine Casualty Sunk
  11   YOKO MARU Cargo 1,050 33-50N, 139-33E United States Submarine Sunk
  11   HOKUSHO MARU Cargo 4,211 00-28S, 166-52E United States Submarine Sunk
  13   YAMATO MARU Transport 9,656 30-06N, 123-332 United States Submarine Sunk
  16   SEIKAI MARU Converted Gunboat 2,663 2-30S, 150-48E Australia Mine Sunk
  17   TAMATSU MARU Passenger-Cargo 4,646 5-23N, 100-21E Japan Marine Casualty Sunk
  18   YOWA MARU Cargo 6,435 27-31N, 126-57E United States Submarine* Sunk
  18   KANSAI MARU Passenger-Cargo 8,614 00-25N, 146-21E United States Submarine Sunk
  19   KATSURA MARU NO 2 Converted Gunboat 1,368 49-05N, 151-45E United States Submarine Sunk
  19   KACHISAN MARU Cargo 814 33-30N, 135-40E United States Submarine Sunk
  21   SHIRIYA Tanker 6,500 26-27N, 122-40E United States Submarine Sunk
  21   SHOYO MARU Tanker 7,498 26-27N, 122-40E United States Submarine Sunk
  21   ARGUN MARU Cargo 6,662 26-27N., 122-40E United States Submarine Sunk
  22   HOKUSEI MARU Cargo 1,394 Sea of Okhotsk Unknown Unknown Sunk
  22   KATSURAHAMA MARU Cargo 715 39-11N, 123-20E United States Submarine Sunk
  23   KOWA MARU Cargo 4,520 34-15N, 137-00E United States Submarine Sunk
  23   DAISHIN MARU Tanker 5,878 34-15N, 137-00E United States Submarine Sunk
  23   RYOTOKU MARU Cargo 3,483 21-17N, 142-00E United States Submarine Sunk
  23   YAMASHIRO MARU Passenger-Cargo 3,429 21-17N, 142-00E United States Submarine Sunk
  24   SHONAN MARU Cargo 521 00-27S, 147-43E United States Army Aircraft Sunk
  25   TAIKO MARU Cargo 2,958 41-30N, 139-00E United States Submarine* Sunk
  25   KIRISHIMA MARU Passenger-Cargo 8,120 9-44N, 111-56E United States Submarine Sunk
  27   TAISEI MARU Cargo 1,957 3-19S, 143-33E United States Army Aircraft Sunk
  27   HAKUSAN MARU Cargo 2,197 1-18N, 103-52E Great
Britain
Sabotage Sunk
  27   KIZAN MARU Cargo 5,077 1-18N, 103-52E Great
Britain
Sabotage Sunk
  27   KASHIMA MARU Transport 9,908 10-14N, 109-45E United States Submarine Sunk
* Probable Agent

--44--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
September 28 1943 AKASHI MARU Cargo 3,227 6-11S, 126-00E United States Submarine Sunk
  28   TAIAN MARU Passenger-Cargo 3,158 15-22N, 145-38E United States Submarine Sunk
  29   MASAKI MARU NO 2 Cargo 1,238 40-00N, 130-00E United States Submarine* Sunk *
  30   MAEBASHI MARU Passenger-Cargo 7,005 6-01N, 139-08E United States Submarine Sunk
        45 Vessels 178,966        
October     1 1943 TONEI MARU Passenger-Cargo 4,930 4-01N, 143-47E United States Submarine Sunk
  1   KINKASAN MARU Cargo 4,980 4-01N, 143-47E United States Submarine Sunk
  5   KONRON MARU Transport 7,908 34-00N, 130-00E United States Submarine Sunk
  6   KAZAHAYA Tanker 8,000e 10-01N, 148-31E United States Submarine Sunk
  6   KANKO MARU Passenger-Cargo 1,288 37-18N, 129-33E United States Submarine* Sunk
  6   SHINYU MARU Cargo 529 3-35S, 143-36E United States Army Aircraft Sunk
  7   KIKUKAWA MARU Passenger-Cargo 3,833 7-22N, 151-54E Japan Marine Casualty Sunk
  8   TAIAN MARU Cargo 5,655 18-24N, 119-09E United States Submarine Sunk
  8   DAINICHI MARU Passenger-Cargo 5,813 18-24N, 119-09E United States Submarine Sunk
  8   KASHU MARU Cargo 5,460 00-25S, 146-22E United States Submarine Sunk
  9   KANKO MARU Cargo 2,995 37-18N, 129-33E United States Submarine* Sunk
  9   KOGANE MARU Passenger-Cargo 3,132 3-36S, 127-44E United States Submarine Sunk
  10   HINO MARU NO 5 Cargo 2,725 5-35S, 154-25E United States Army Aircraft Sunk
  10   TEIBI MARU Transport 10,086 14-44N, 110-19E United States Submarine Sunk
  10   ISUZUGAWA MARU Cargo 4,212 14-44N, 110-19E United States Submarine Sunk
  11   SANWA MARU Cargo 547 5-30S, 154-45E United States Army Aircraft Sunk
  12   KEISHO MARU Passenger-Cargo 5,879 4-13S, 152-12E United States Army Aircraft Sunk
  12   TSUKINADA MARU Passenger-Cargo 530 4-13S, 152-11E United States Army Aircraft Sunk
  13   DAIGEN MARU NO 8 Cargo 1,365 24-28N, 118-04E United States Army Aircraft Sunk
  13   KENKOKU MARU Cargo 3,127 3-47S, 127-41E United States Submarine Sunk
  14   KOZUI MARU Passenger-Cargo 7,072 27-35N, 127-27E United States Submarine Sunk
  15   CHICAGO MARU Passenger-Cargo 5,866 24-35N, 120-31E United States Submarine Sunk
  18   TAICHU MARU Cargo 1,906 34-00N, 136-24E United States Submarine Sunk
  18   TAIRIN MARU Cargo 1,915 1-00N, 143-16E United States Submarine Sunk
  20   SANA MARU Cargo 3,365 12-36N, 109-30E United States Submarine Sunk
  22   AWATA MARU Converted Light Cruiser 7,397 26-48N, 124-56E United States Submarine Sunk
  24   TENNAN MARU Cargo 5,407 2-05N, 144-39E United States Submarine Sunk
  24   KAZAN MARU Cargo 1,893 2-05N, 144-39E United States Submarine Sunk
  24   JOHORE MARU Passenger-Cargo 6,182 2-05N, 144-39E United States Submarine Sunk
  26   DOVER MARU Cargo 3,212 16-16N, 96-18E United States Army Aircraft Sunk
  26   HOKUZAN MARU Cargo 1,329 20-05N, 110-25E United States Army Aircraft Sunk
  26   YAMATOGAWA MARU Cargo 776 20-05N, 110-25E United States Army Aircraft Sunk
  26   SHOZAN MARU Cargo 2,937 20-52N, 106-40E United States Army Mine Sunk
  27   FUJI MARU Transport 9,138 28-25N, 128-04E United States Submarine Sunk
  27   NANMAN MARU Cargo 6,550 12-34N, 134-48E United States Submarine Sunk
* Probable Agent

--45--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
October     29 1943 WUHU MARU Cargo 3,222 22-30N, 115-25E United States Submarine Sunk
  30   SHINYO MARU NO 2 Cargo 1,085 41-52N, 140-07E Japan Marine Casualty Sunk
  30   SHANGHAI MARU Transport 5,258 32-00N, 125-00E Japan Marine Casualty Sunk
  31   KORYO MARU Tanker 589 1-25N, 120-46E United States Submarine Sunk
        39 Vessels 158,093        
November   2   CHIHAYA MARU Cargo 7,089 28-37N, 134-47E United States Submarine* Sunk
  2   UME MARU Passenger-Cargo 5,859 28-37N, 134-45E United States Submarine* Sunk
  2   YAWATA MARU Cargo 1,852 28-49N, 134-50E United States Submarine* Sunk
  2   DELAGOA MARU Passenger-Cargo 7,148 28-55N, 134-43E United States Submarine* Sunk
  2   MANKO MARU Cargo 1,503 4-15S, 152-10E United States Army Aircraft Sunk
  2   SHINKO MARU Cargo 3,119 4-13S, 152-11E United States Army Aircraft Sunk
  2   EHIME MARU Cargo 4,653 28-18N, 134-48E United States Submarine Sunk
  3   MINATO MARU Cargo 664 00-43N, 169-10E United States Navy Land-Based Aircraft Sunk
  4   CHINKO MARU Passenger-Cargo 3,222 23-20N, 116-45E United States Army Aircraft Sunk
  4   RYUOSAN MARU Cargo 2,455 2-40S, 150-40E Australia Mine Sunk
  4   KAIFUKU MARU Passenger-Cargo 3,177 21-22N, 113-20E United States Submarine Sunk
  6   ASAYAMA MARU Converted Water Carrier 1,917 5-44S, 154-45E United States Army Aircraft Sunk
  6   UJIGAWA MARU Cargo 782 5-16N, 154-33E United States Army Aircraft Sunk
  7   INUSHIMA MARU NO 6 Cargo 586 24-28N, 118-04E United States Army Aircraft Sunk
  7   NAGATA MARU Cargo 670 24-28N, 118-04E United States Army Aircraft Sunk
  8   KYOKUEI MARU Tanker 10,570 16-44N, 116-22E United States Submarine Sunk
  8   TANGO MARU Tanker 2,046 00-22N, 119-44E United States Submarine Sunk
  9   TAGA MARU Cargo 2,868 21-38N, 131-19E United States Submarine Sunk
  10   KISOGAWA MARU Converted Water Carrier 1,914 6-12N, 99-25E Great
Britain
Submarine Sunk
  10   GIYU MARU Cargo 877 5-30S, 154-45E United States Army Aircraft Sunk
  10   TOKYO MARU Passenger-Cargo 6,486 3-36N, 150-34E United States Submarine Sunk
  11   KUNITAMA MARU Cargo 3,127 3-08S, 127-38E United States Submarine Sunk
  11   KOSEI MARU Passenger-Cargo 3,551 27-36N, 130-32E United States Submarine Sunk
  13   KYOKUYO MARU Tanker 17,548 East China Sea Unknown Unknown Sunk
  13   TANGO MARU Passenger-Cargo 6,893 East China Sea Unknown Unknown Sunk
  13   NACHISAN MARU Passenger-Cargo 4,433 32-57N, 125-06E United States Submarine Sunk
  13   MUKO MARU Transport 4,862 8-57N, 152-36E United States Submarine Sunk
  15   KYOKKO MARU Passenger-Cargo 6,783 14-53N, 119-54E United States Submarine Sunk
  16   KYORITSU MARU NO 2 Cargo 830 3-25S, 145-30E United States Army Aircraft Sunk
  16   TETSUWA MARU Cargo 1,951 23-42N, 117-35E United States Army Aircraft Sunk
  17   HIE MARU Converted Submarine Tender 11,621 1-48N, 148-24E United States Submarine Sunk
  19   DAIGEN MARU Cargo 1,517 19-54N, 110-10E United States Army Aircraft Probably sunk
  19   UDO MARU Cargo 3,936 22-27N, 147-15E United States Submarine Sunk
* Probable Agent

--46--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
November   19 1943 HOKKO MARU Cargo 5,385 22-27N, 147-15E United States Submarine Sunk
  20   NAPLES MARU Cargo 5,824 3-22S, 151-45E United States Navy Land-Based Aircraft Sunk
  20   NIKKO MARU Cargo 5,949 22-47N, 147-20E United States Submarine Sunk
  21   EIZAN MARU Cargo 1,681 36-40N, 125-31E United States Submarine* Sunk
  21   TAIKO MARU Cargo 1,812 21-17N, 136-30E Japan Marine Casualty Sunk
  21   NICHII MARU Cargo 6,550 2-00S, 149-15E United States Army Aircraft Sunk
  21   SHINWA MARU Cargo 3,328 2-24S, 134-36E United States Army Aircraft Sunk
  22   KANAYAMASAN MARU Cargo 2,869 1-00N, 149-00E United States Army Aircraft Sunk
  22   YAMATO MARU Cargo 4,379 7-09N, 134-34E United States Submarine Sunk
  22   DAISHU MARU Cargo 3,322 33-36N, 128-35E United States Submarine Sunk
  22   KISO MARU Cargo 4,071 7-09N, 134-34E United States Submarine Sunk
  23   KIZAN MARU Cargo 2,841 1-50N, 127-55E United States Army Aircraft Sunk
  23   NEKKA MARU Transport 6,784 28-49N, 122-11E United States Submarine Sunk
  25   KENZAN MARU Cargo 4,705 00-51N, 145-56E United States Submarine Sunk
  25   TOA MARU Tanker 10,052 8-20N, 158-00E United States Submarine Sunk
  26   OGURASAN MARU Tanker 5,069 12-48N, 109-34E United States Submarine Sunk
  26   TAINAN MARU Cargo 5,407 13-02N, 109-28E United States Submarine Sunk
  26   ONOE MARU Cargo 6,667 00-40N, 148-14E United States Submarine Sunk
  26   NIKKAI MARU Converted Gunboat 2,562 4-00N, 147-50E United States Submarine Sunk
  26   UNKNOWN MARU Cargo 4,000e 33-36N, 128-57E United States Submarine Sunk
  26   SHINI MARU Cargo 3,811 6-56N, 134-38E United States Submarine Sunk
  27   BERYL Cargo 671 South China Sea Unknown Unknown Sunk
  27   BUENOS AIRES MARU Cargo 9,625 2-44S, 149-15E United States Unknown Aircraft Sunk
  27   HAKONE MARU Passenger-Cargo 10,420 25-20N, 120-00E United States Army Aircraft Sunk
  27   VAN VOLLENHOVEN Cargo 691 13-01N, 109-30E United States Submarine Sunk
  27   SAN RAMON MARU Tanker 7,309 33-38N, 129-05E United States Submarine Sunk
  28   SYDNEY MARU Passenger-Cargo 5,425 12-46N, 109-42E United States Submarine Sunk
  28   TONAN MARU Tanker 9,866 12-46N, 109-42E United States Submarine Sunk
  28   HOKKO MARU Cargo 5,347 1-40N, 141-45E United States Submarine Sunk
  28   YURI MARU Cargo 6,787 1-40N, 141-45E United States Submarine Sunk
  29   SUEZ MARU Cargo 4,646 6-22S, 116-35E United States Submarine Sunk
  29   KENRYU MARU Cargo 4,575 33-19N, 139-34E United States Submarine Sunk
  29   MANJU MARU Cargo 5,877 18-23N, 140-18E United States Submarine Sunk
  29   YAMAFUKU MARU Passenger-Cargo 4,928 18-37N, 139-45E United States Submarine Sunk
  29   SHIGANOURA MARU Cargo 3,512 18-38N, 139-35E United States Submarine Sunk
  30   COLUMBIA MARU Passenger-Cargo 5,618 1-56N, 147-23E United States Submarine Sunk
  30   SHOKO MARU Cargo 1,933 14-31N, 140-18E United States Submarine Sunk
        70 Vessels 320,807        
* Probable Agent

--47--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
December   1 1943 TEIREN MARU Passenger-Cargo 3,044 22-13N, 114-05E United States Army Aircraft Sunk
  1   NICHIRYO MARU Passenger-Cargo 2,721 1-31N, 120-513 United States Submarine Sunk
  1   KONEI MARU Cargo 2,345 1-02N, 146-42E United States Submarine Sunk
  2   HITORA MARU Cargo 3,513 OFF JAPAN Unknown Unknown Sunk
  2   HIMALAYA MARU Passenger-Cargo 5,228 00-52S, 148-50E United States Army Aircraft Sunk
  3   ASSAM Cargo 1,668 18-51N, 95-17E United States Army Aircraft Sunk
  3   AZUMA MARU Passenger-Cargo 6,646 6-29N, 131-28E United States Submarine Sunk
  4   HIYOSHI MARU Passenger-Cargo 4,046 29-45N, 145-55E United States Submarine Sunk
  4   DAIDO MARU Converted Gunboat 2,962 8-15N, 159-06E United States Submarine Sunk
  5   ASAKAZE MARU Passenger-Cargo 6,517 9-19N, 167-25E United States Navy Carrier-
Based Aircraft
Sunk
  5   CHOKO MARU Cargo 3,515 9-19N, 167-25E United States Navy Carrier-
Based Aircraft
Sunk
  5   TATEBU MARU Cargo 6,816 9-19N, 167-25E United States Navy Carrier-
Based Aircraft
Sunk
  5   TATEYAMA MARU Converted Water Carrier 3,787 9-19N, 167-25E United States Navy Carrier-
Based Aircraft
Sunk
  5   HIMENO MARU Cargo 834 9-10N, 124-30E United States Submarine Sunk
  7   OTORI MARU Cargo 2,559 38-43N, 125-24E Japan Marine Casualty Sunk
  7   SOYO MARU Converted Submarine Tender 6,081 14-04N, 152-09E United States Submarine Sunk
  8   SANSEI MARU Passenger-Cargo 3,267 25-20N, 141-46E United States Submarine Sunk
  9   HIGARI MARU Cargo 878 38-44N, 125-24E Japan Marine Casualty Sunk
  12   TOSEI MARU Cargo 5,484 2-44N, 126-14E United States Submarine Sunk
  13   TOKIWA MARU Cargo 1,203 3-30S, 151-30E United States Navy Land-Based Aircraft Sunk
  13   FUKKAI MARU Passenger-Cargo 3,829 7-07N, 134-31E United States Submarine Sunk
  13   TOTAI MARU Cargo 3,195 30-55N, 132-33E United States Submarine Sunk
  14   HAKOZAKI MARU Passenger-Cargo 3,948 33-10N, 125-55E United States Submarine Sunk
  16   WAKATSU MARU Cargo 5,123 8-26S, 126-48E Netherlands Aircraft Sunk
  16   GENMEI MARU Cargo 3,180 8-26S, 126-48E Australia Aircraft Sunk
  16   GINYO MARU Cargo 8,613 22-27N, 120-08E United States Submarine Sunk
  18   GYOKUREI MARU Cargo 5,588 26-22N, 128-20E United States Submarine Sunk
  19   KAITO MARU Cargo 2,745 3-05S, 151-15E United States Army Aircraft Sunk
  19   ALASKA MARU Cargo 7,378 2-37S, 150-52E United States Navy Carrier-
Based Aircraft
Sunk
  20   SHOEI MARU Cargo 3,083 8-42N, 167-44E United States Navy Land-Based Aircraft Sunk
  20   TSUNESHIMA MARU Cargo 2,926 1-30N, 148-36E United States Submarine Sunk
  21   UYO MARU Cargo 6,376 32-38N, 132-04E United States Submarine Sunk
  21   TERUKAWA MARU Cargo 6,429 9-50N, 151-55E United States Submarine Sunk
  21   KONAN MARU Cargo 2,627 30-24N, 129-53E United States Submarine Sunk
  21   KASHIWA MARU Converted Net Tender   515 30-24N, 129-53E United States Submarine Sunk
  22   GINREI MARU Passenger-Cargo 5,949 20-12N, 113-42E China Aircraft Sunk
  23   MANKAI MARU NO 2 Cargo 1,960 6-05N, 171-43E United States Army Aircraft Navy Carrier-
Based Aircraft
Sunk

--48--

Date    Name of Vessel    Type of Vessel Tonnage Location Flag of
Agent
Type of Agent Assessment
December   24 1943 SEIZAN MARU NO 2 Cargo 1,898 34-02N, 136-19E United States Submarine Sunk
  24   TOFUKU MARU Cargo 5,857 33-58N, 136-16E United States Submarine Sunk
  24   HEIWA MARU Cargo 5,578 2-45N, 127-41E United States Submarine Sunk
  25   TENRYU MARU Cargo 4,861 2-36S, 150-49E United States Navy Carrier Based Aircraft Sunk
  27   KYUEI MARU Tanker 10,171 21-42N, 118-05E United States Submarine Sunk
  27   KYOKO MARU Tanker 5,792 5-00S, 121-22E United States Submarine Sunk
  28   HEIZAN MARU Passenger-Cargo 1,061 30-31N, 117-02E United States Army Aircraft Sunk
  28   UNTO MARU Passenger-Cargo 1,037 30-31N, 117-02E United States Army Aircraft Sunk
  29   BICHU MARU Cargo 4,667 Off New Guinea Unknown Unknown Sunk  
  29   DAITEI MARU Passenger-Cargo 2,421 30-31N, 117-02E United States Army Aircraft Sunk
  29   KAKUZAN MARU Cargo 2,938 30-31N, 117-02E United States Army Aircraft Sunk
  29   TENPOSAN MARU Cargo 1,970 8-00N, 133-51E United States Submarine Sunk
  29   SHICHISEI MARU Cargo 1,911 8-03N, 134-04E United States Submarine Sunk
  29   RYUTO MARU Cargo 3,311 8-00N, 133-51E United States Submarine Sunk
  30   ICHIYU MARU Tanker 5,061 2-45S, 109-10E United States Submarine Sunk
  31   SHOHO MARU Cargo 1.936 5-18N, 160-16E United States Submarine Sunk
        53 Vessels 207,048        
January     1 1944 KANAIYAMA MARU Cargo 543 2-03S, 147-27E United States Navy Land-Based Aircraft Sunk
  1   RYUYO MARU Cargo 6,707 8-24N, 122-56E United States Submarine Sunk
  1   OKUYO MARU Converted Gunboat 2,904 3-51S, 128-04E United States Submarine Sunk
  1   NAGOYA MARU Aircraft Ferry 6,072 32-10N, 138-37E United States Submarine Sunk
  2   ISSHIN MARU Tanker 10,000e 29-30N, 128-50E United States Submarine Sunk
  3   SAISHU MARU Cargo 2,082 33-44N, 136-02E United States Submarine Sunk
  3   RYUEI MARU Tanker 5,144 8-06N, 112-30E United States Submarine Sunk
  3   BOKUEI MARU Tanker 5,135 6-58N, 112-02E United States Submarine Sunk
  4   HEIMEI MARU Cargo 4,364 10-10S, 123-35E United States Army Aircraft Sunk
  4   KIYO MARU Tanker 7,251 5-46N, 108-36E United States Submarine Sunk
  4   USA MARU Cargo 3,943 34-09N, 136-50E United States Submarine Sunk
  4   HAKKO MARU Tanker 6,046 7-10N, 108-25E United States Submarine Sunk
  4   TAMON MARU NO 8 Cargo 2,705 11-05N, 109-10E United States Submarine Sunk
  7   KATSURAGISAN MARU Cargo 2,427 7-30N, 151-50E Japan Mine Sunk
  7   FUSHIMI MARU NO 3 Tanker 4,292 9-27N, 117-36E United States Submarine Sunk
  10   YAMABIKO MARU Converted Salvage Vessel 6,795 31-28N, 137-44E United States Submarine Sunk
  10   GETSUYO MARU Cargo 6,440 27-22N, 127-31E United States Submarine Sunk
  10   ASUKA MARU Cargo 7,523 27-35N, 127-30E United States Submarine Sunk
  11   YAHIKO MARU Cargo 5,747 27-10N, 127-28E United States Submarine Sunk
  11   ERIE MARU Cargo 5,493 32-56N, 132-02E United States Submarine Sunk
  12   IKUTA MARU Converted Gunboat 2,969 8-42N, 167-44E United States Navy Land-Based Aircraft Sunk
  12   KANJO MARU Cargo 2,197 22-37N, 120-15E United States Army Mine Sunk

--49--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
January     12 1944 NIGITSU MARU Transport 9,547 23-15N, 133-49E United States Submarine Sunk
  12   CHOKO MARU Converted Gunboat 2,629 3-30N, 147-27E United States Submarine Sunk
  13   HAGURO MARU Cargo 3,352 2-43S, 149-25E United States Array Aircraft Sunk
  14   GYOEI MARU Cargo 2,790 20-35N, 113-44E United States Army Aircraft Sunk
  14   NIPPON MARU Tanker 9,975 5-02N, 140-43E United States Submarine Sunk
  14   YAMATSURU MARU Cargo 3,651 28-30N, 133-40E United States Submarine Sunk
  14   KENYO MARU Tanker 10,022 5-22N, 141-27E United States Submarine Sunk
  14   YAMAKUNI MARU Passenger-Cargo 6,921 33-16N, 139-30E United States Submarine Sunk
  15   RYUKO MARU Passenger-Cargo 2,962 10-00N, 93-00E Great
Britain
Submarine Sunk
  15   TATSUNO MARU Cargo 6,960 19-45N, 120-40E United States Submarine Sunk
  15   TOHO MARU Cargo 4,092 19-45N, 120-40E United States Submarine Sunk
  16   HARUNA MARU Cargo 1,549 5-00N, 130-00E Japan Marine Casualty Sunk
  16   MEISHO MARU Cargo 2,735 2-20S, 149-42E United States Army Aircraft Navy Land-Based Aircraft Sunk
  16   HOZUGAWA MARU Cargo 1,925 2-20S, 149-42E United States Navy Land-Based Aircraft Sunk
  16   SHUNKO MARU Cargo 4,027 2-30S, 149-42E United States Navy Land-Based Aircraft Sunk
  16   NIKKO MARU Cargo 734 12-49N, 150-19E United States Submarine Sunk
  16   DENMARK MARU Cargo 5,870 23-09N, 135-14E United States Submarine Sunk
  16   DELHI MARU Converted Gunboat 2,182 34-04N, 139-56E United States Submarine Sunk
  16   KAIKA MARU Cargo 2,087 4-03N, 148-41E United States Submarine Sunk
  17   CHIBURI MARU Cargo 1,943 2-27S, 148-58E United States Army Aircraft Sunk
  17   FUKEI MARU NO 9 Cargo 617 2-00S, 149-00E United States Army Aircraft Sunk
  17   HAKKAI MARU Converted Salvage Vessel 5,114 4-13S, 152-12E United States Navy Land-Based Aircraft Sunk
  17   KENSHIN MARU Cargo 3,126 4-13S, 152-12E United States Navy Land-Based Aircraft Sunk
  17   KOSEI MARU Cargo 1,920 4-13S, 152-12E United States Navy Land-Based Aircraft Sunk
  17   LYONS MARU Cargo 7,017 4-13S, 152-12E United States Navy Land-Based Aircraft Sunk
  17   TENSHIN MARU Cargo 1,500 4-13S, 152-12E United States Navy Land-Based Aircraft Sunk
  17   SHOYU MARU Cargo 4,408 00-18N, 118-37E United States Submarine Sunk
  17   TARUSHIMA MARU Cargo 4,865 22-45N, 135-00E United States Submarine Sunk
  18   YOSHIDA MARU Converted Gunboat 2,900 23-50N, 151-28E United States Submarine Sunk
  20   SANYU MARU Cargo 530 13-00N, 121-00E Japan Marine Casualty Sunk
  20   JINTSU MARU Dredge 558 3-04S, 142-10E United States Army Aircraft Sunk
  20   MENADO MARU Cargo 2,166 23-10N, 118-15E United States Army Aircraft Sunk
  20   KUZAN MARU Cargo l,000e 22-10N, 118-15E United States Army Aircraft Sunk
  20   KOYU MARU Cargo 5,325 6-40N, 134-17E United States Submarine Sunk
  20   HIDAKA MARU Cargo 5,486 31-28N, 134-52E United States Submarine Sunk
  21   YASUKUNI MARU Cargo 3,025 3-19N, 137-02E United States Submarine Sunk

--50--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
January     21 1944 IKOMA MARU Passenger-Cargo 3,156 3-19N, 137-02E United States Submarine Sunk
  22   KOSHIN MARU Passenger-Cargo 5,485 7-22N, 115-05E United States Submarine Sunk
  22   SEINAN MARU Cargo 5,401 7-22N, 115-05E United States Submarine Sunk
  23   SEIKAI MARU Cargo 3,180 12-26N, 98-36E United States Army Aircraft Sunk
  23   PANAMA MARU Cargo 5,287 27-08N, 120-30E China Aircraft Sunk
  23   TAIAN MARU Cargo 3,670 5-45N, 134-45E United States Submarine Sunk
  23   MAGANE MARU Converted Gunboat 3,120 29-49N, 140-07E United States Submarine Sunk
  24   LIU HSING Cargo 1,076 26-58N, 120-04E United States Army Aircraft Sunk
  24   UNKNOWN MARU Cargo 1,000e 26-58N, 120-04E United States Army Aircraft Sunk
  24   UNKNOWN MARU Cargo 1,000e 26-58N, 120-04E United States Army Aircraft Sunk
  24   KOAN MARU Converted Water Carrier 3,462 4-13S, 152-11E United States Navy Carrier-Based Aircraft Sunk
  24   OGASHIMA MARU Cargo 1,424 8-14N, 168-02E United States Navy Land-Based Aircraft Sunk
  24   NARUTO Tanker 6,500 4-13S, 152-11E United States Navy Carrier-Based Aircraft Sunk
  24   TAISHO MARU Cargo 4,815 4-13S, 152-11E United States Navy Carrier-Based Aircraft Sunk
  24   YAMAYURI MARU Cargo 5,028 4-13S, 152-11E United States Navy Carrier-Based Aircraft Sunk
  24   CHOSEN MARU Cargo 3,110 32-255, 133-00E United States Submarine Sunk
  24   HARAJI MARU Converted Minesweeper 500 21-33N, 112-00E United States Army Aircraft* Probably sunk
  25   NANSHIN MARU Cargo 1,391 35-31N, 133-09E Japan Marine Casualty Sunk
  26   OKITSU MARU Converted Seaplane Tender 6,666 9-22N, 157-26E United States Submarine Sunk
  26   BUSHO MARU Converted Gunboat 2,552 8-27N, 109-12E United States Submarine Sunk
  27   KASAGI MARU Converted Salvage Vessel 3,140 33-31N, 139-36E United States Submarine Sunk
  27   KIKUZUKI MARU Cargo 1,266 22-11N, 119-12E United States Submarine Sunk
  27   KOSEI MARU Cargo 2,205 22-11N, 119-12E United States Submarine Sunk
  28   NEIKAI MARU Cargo 2,827 3-45S, 150-38E United States Army Aircraft Sunk
  28   UJI MARU Converted Net Tender 872 9-20N, 167-28E United States Navy Carrier-Based Aircraft Sunk
  29   SHUNTAI MARU Cargo 2,253 27-22N, 128-29E United States Submarine Sunk
  29   SHUKO MARU Converted Net Tender 889 23-07N, 142-27E United States Submarine Sunk
  30   EIKO MARU Cargo 3,535 9-10N, 167-20E United States Surface Craft Sunk
  30   TOKIHIME MARU Cargo 741 4-10S, 144-51E United States Army Aircraft Sunk
  30   AKIBASAN MARU   Cargo 4,603 8-42N, 167-44E United States Navy Carrier-
Based Aircraft
Sunk
  30   IWATE MARU Converted Water Carrier 2,984 4-12S, 152-12E United States Navy Carrier-
Based Aircraft
Sunk
  30   KATSURA MARU Converted Net Tender 540 11-32N, 162-22E United States Navy Carrier-
Based Aircraft Navy Surface Craft
Sunk
* Probable Agent

--51--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
January     30 1944 PARAN MARU Cargo 562 8-42N, 167-44E United States Navy Carrier-Based Aircraft
Navy Surface Craft
Probably sunk
  30   TOKO MARU Passenger-Cargo 2,747 6-10N, 138-14E United States Submarine Sunk
  30   TAMASHIMA MARU Passenger-Cargo 3,560 21-15N, 149-18E United States Submarine Sunk
  31   YASUKUNI MARU Converted Submarine Tender 11,933 9-21N, 147-02E United States Submarine Sunk
  31   HIRO MARU Converted Net Tender 549 15-23N, 145-35E United States Submarine Sunk
        95 Vessels 355,368        
February     1 1944 TOEI MARU Cargo 4,004 4-21N, 143-16E United States Submarine Sunk
  1   TACOMA MARU Passenger-Cargo 5,772 1-35N, 128-58E United States Submarine Sunk
  1   NANKA MARU Cargo 4,065 1-35N, 128-58E United States Submarine Sunk
  2   TOYO MARU NO 5 Cargo 2,193 33-32N, 135-58E United States Submarine Sunk
  2   TOYO MARU NO 8 Cargo 2,191 33-32N, 135-58E United States Submarine Sunk
  3   NICHIAI MARU Cargo 5,439 3-00S, 150-10E United States Army Aircraft
Navy Carrier-
Based Aircraft
Sunk
  3   ARIAKE MARU Cargo 5,000 29-11N, 124-45E United States Submarine Sunk
  3   GOYO MARU Tanker 8,496 29-11N, 124-45E United States Submarine Sunk
  4   GORYU MARU Converted Water Carrier 1,912 6-00N, 169-44E United States Navy Land-Based Aircraft Sunk
  5   SEIKYO MARU Passenger-Cargo 2,565 22-00N, 116-00E United States Army Aircraft Sunk
  5   LUSHAN MARU Cargo 2,531 22-00N, 116-00E United States Army Aircraft Sunk
  5   TATSUMI MARU Cargo 850 3-21S, 143-33E United States Army Aircraft Sunk
  5   SUZAN MARU Passenger-Cargo 2,539 22-00N, 116-00E United States Army Aircraft Sunk
  5   TAISHIN MARU Cargo 1,723 13-09N, 120-24E United States Submarine Sunk
  8   LIMA MARU Cargo 6,989 32-18N, 129-20E United States Submarine Sunk
  10   MALTA MARU Passenger-Cargo 5,500 23-12N, 121-30E United States Submarine Sunk
  11   SATSUMA MARU Passenger-Cargo 3,091 28-01N, 121-30E China Aircraft Sunk
  12   CHOKO MARU Converted Net Tender 889 5-45N, 99-50E Great
Britain
Submarine Sunk
  12   RONSAN MARU Passenger-Cargo 2,735 27-43N, 128-35E United States Submarine Sunk
  13   URASHIO MARU Cargo 904 41-26N, 140-06E Japan Marine Casualty Sunk
  13   YOSHINO MARU Cargo 872 3-20S, 143-00E United States Army Aircraft Sunk
  13   SHOKA MARU Cargo 1,381 18-35N, 108-30E United States Army Aircraft Sunk
  14   DOZAN MARU Cargo 1,679 37-19N, 126-29E Japan Marine Casualty Sunk
  14   NITTOKU MARU Cargo 3,591 33-48N, 128-49E United States Submarine Sunk
  14   KINRYO MARU Cargo 2,193 13-44N, 120-40E United States Submarine Sunk
  14   HOKUAN MARU Cargo 3,712 13-40N, 120-27E United States Submarine Sunk
  15   MATSU MARU Converted Net Tender 509 2-36S, 150-36E United States Army Aircraft Sunk
  15   ODATSUKI MARU Cargo 1,988 10-03N, 126-54E United States Submarine Sunk
  15   HOSHI MARU NO 2 Cargo 875 34-23N, 128-12E United States Submarine Sunk
  15   RYOKA MARU Passenger-Cargo 5,307 31-16N, 121-45E United States Army Mine Sunk
  16   SANKO MARU Tanker 5,461 2-24S, 150-06E United States Army Aircraft Sunk
  16   CHOJO MARU Transport 2,610 9-15N, 127-05E United States Submarine Sunk

--52--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of Vessel Type of Vessel Assessment
February     17 1944 KASHI MARU Converted Net Tender 540 2-24S, 150-06E United States Army Aircraft Sunk
  17   AIKOKU MARU Converted Light Cruiser 10,437 7-22N, 151-54E United States Navy Carrier-
Based Aircraft
Sunk
  17   AKAGI MARU Converted Light Cruiser 7,389 7-54N, 151-25E United States Navy Carrier-
Based Aircraft
Sunk
  17   AMAGISAN MARU Passenger-Cargo 7,620 7-18N, 151-53E United States Navy Carrier-
Based Aircraft
Sunk
  17   FUJIKAWA MARU Aircraft Ferry 6,938 7-20N, 151-53E United States Navy Carrier-
Based Aircraft
Sunk
  17   FUJISAN MARU Tanker 9,524 7-23N, 151-53E United States Navy Carrier-
Based Aircraft
Sunk
  17   GOSEI MARU Cargo 1,931 7-18N, 151-53E United States Navy Carrier-
Based Aircraft
Sunk
  17   HANAGAWA MARU Tanker 4,739 7-25N, 151-45E United States Navy Carrier-
Based Aircraft
Sunk
  17   HEIAN MARU Converted Submarine Tender 11,614 7-23N, 151-51E United States Navy Carrier-
Based Aircraft
Sunk
  17   HOKI MARU Cargo 7,112 7-22N, 151-45E United States Navy Carrier-
Based Aircraft
Sunk
  17   HOKUYO MARU Passenger-Cargo 4,216 7-18N, 151-53E United States Navy Carrier-
Based Aircraft
Sunk
  17   HOYO MARU Tanker 8,691 7-23N, 151-50E United States Navy Carrier-
Based Aircraft
Sunk
  17   KENSHO MARU Passenger-Cargo 4,862 7-18N, 151-53E United States Navy Carrier-
Based Aircraft
Sunk
  17   KIYOSUMI MARU Converted Light Cruiser 8,613 7-23N, 151-53E United States Navy Carrier-
Based Aircraft
Sunk
  17   REIYO MARU Cargo 5,445 7-25N, 151-451 United States Navy Carrier-
Based Aircraft
Sunk
  17   RIO DE JANEIRO MARU Converted Submarine Tender 9,626 7-20N, 151-53E United States Navy Carrier-
Based Aircraft
Sunk
  17   SAN FRANCISCO MARU Passenger-Cargo 5,831 7-22N, 151-54E United States Navy Carrier-
Based Aircraft
Sunk
  17   SANKISAN MARU Cargo 4,776 7-25N, 151-45E United States Navy Carrier-
Based Aircraft
Sunk
  17   SEIKO MARU Cargo 5,385 7-22N, 151-45E United States Navy Carrier-
Based Aircraft
Sunk
  17   MOMOGAWA MARU Passenger-Cargo 3,829 7-20N, 151-53E United States Navy Carrier-
Based Aircraft
Sunk
  17   NAGANO MARU Passenger-Cargo 3,824 7-25N, 151-45E United States Navy Carrier-
Based Aircraft
Sunk
  17   NIPPO MARU Converted Water Carrier 3,763 7-18N, 151-53E United States Navy Carrier-
Based Aircraft
Sunk
  17   MATSUTAN MARU Cargo 1,999 7-23N, 151-05E United States Navy Carrier-
Based Aircraft
Sunk

--53--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
February     17 1944 TONAN MARU NO 3 Tanker 19,209 7-23N, 151-51E United States Navy Carrier-Based Aircraft Sunk
  17   UNKAI MARU NO 6 Cargo 3,220 7-25N, 151-45E United States Navy Carrier-Based Aircraft Sunk
  17   YAMAGIRI MARU Passenger-Cargo 6,438 7-23N, 151-51E United States Navy Carrier-Based Aircraft Sunk
  17   YUBAE MARU Cargo 3,217 7-18N, 151-53E United States Navy Carrier-Based Aircraft Sunk
  17   ZUIKAI MARU Cargo 2,827 7-46N, 150-27E United States Navy Carrier-Based Aircraft Sunk
  17   TATSUHA MARU Passenger-Cargo 5,784 7-46N, 150-27E United States Navy Carrier-Based Aircraft Sunk
  17   SHINKOKU MARU Tanker 10,020 7-20N, 151-40E United States Navy Carrier-Based Aircraft Sunk
  17   TAIHO MARU Cargo 2,829 7-22N, 151-54E United States Navy Carrier-Based Aircraft Sunk
  17   NICHIRO MARU Passenger-Cargo 6,534 8-50N, 135-57E United States Submarine Sunk
  17   GYOTEN MARU Cargo 6,854 8-04N, 149-28E United States Submarine Sunk
  18   GOKENZAN MARU Transport 1,649 44-01N, 141-38E Japan Marine Casualty Sunk
  18   SHINSOKU MARU Cargo 3,202 28-21N, 121-51E United States Army Aircraft Sunk
  19   KOGEN MARU Cargo 2,965 35-00N, 140-00E Japan Marine Casualty Sunk
  19   NISSHIN MARU NO 3   Cargo 2,717 41-42N, 140-32E Japan Marine Casualty Probably sunk
  19   TATSUKIKU MARU Cargo 892 2-50S, 150-42E United States Army Aircraft Sunk
  19   SHINTO MARU NO 1 Cargo 1,934 2-50S, 150-42E United States Army Aircraft Sunk
  19   TAIRYU MARU Cargo 4,994 25-25N, 121-30E United States Army Aircraft Sunk
  19   KOKUEI MARU Tanker 5,154 14-34N, 114-11E United States Submarine Sunk
  19   NANEI MARU Tanker 5,019 14-34N, 114-11E United States Submarine Sunk
  19   NICHIRIN MARU Tanker 5,162 15-45N, 115-39E United States Submarine Sunk
  19   ICHIYO MARU Tanker 5,106 15-40N, 115-48E United States Submarine Sunk
  19   TAIKEI MARU Cargo 4,739 21-48N, 119-50E United States Submarine* Sunk
  19   TOSHIN MARU Cargo 1,917 21-46N, 120-06E United States Submarine* Sunk
  20   TAIJIN MARU Cargo 5,154 24-12N, 123-20E United States Submarine Sunk
  20   MANYO MARU Cargo 3,610 24-28N, 123-31E United States Submarine Sunk
  21   DAIGEN MARU NO 6 Cargo 510 3-15N, 100-40E Great
Britain
Submarine Sunk
  21   KOKAI MARU Cargo 3,871 2-30S, 150-15E United States Army Aircraft Sunk
  21   KOWA MARU Cargo 1,106 2-30S, 150-15E United States Army Aircraft Sunk
  22   KYOSEI MARU Cargo 556 2-00S, 149-50E United States Surface Craft Sunk
  22   TEIKO MARU Transport 15,105 3-03N, 109-16E United States Submarine Sunk
  22   FUKUYAMA MARU Passenger-Cargo 3,581 14-47N, 144-50E United States Submarine Sunk
  22   TAISHO MARU Cargo 4,815 4-10S, 152-18E United States Navy Carrier-Based Aircraft Sunk
  23   GYOKO MARU Passenger-Cargo 5,342 26-13N, 127-40E Japan Marine Casualty Sunk
* Probable Agent

--54--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
February     23 1944 SEIZAN MARU Passenger-Cargo 4,232 15-00N, 145-30E United States Navy Carrier-
Based Aircraft
Sunk
  23   KIMISHIMA MARU Cargo 5,193 30-30N, 140-20E United States Submarine Sunk
  23   HOREI MARU Cargo 5,588 26-22N, 126-15E United States Submarine Sunk
  23   KOYO MARU Passenger-Cargo 5,471 28-58N, 141-15E United States Submarine Sunk
  23   SHINYUBARI MARU Cargo 5,354 15-17N, 145-03E United States Submarine Sunk
  23   KUNISHIMA MARU Cargo 4,083 15-23N, 145-02E United States Submarine Sunk
  23   YAMASHIMO MARU Cargo 6,776 14-45N, 144-32E United States Submarine Sunk
  23   OGURA MARU NO 3 Tanker 7,350 3-53N, 129-17E United States Submarine Sunk
  23   NIKKI MARU Passenger-Cargo 5,857 00-07N, 135-42E United States Submarine Sunk
  24   SHUNSAN MARU NO 2 Cargo 608 5-20N, 162-58E United States Navy Land-Based Aircraft Sunk
  24   NAMPO MARU Tanker 10,033 24-20N, 122-25E United States Submarine Sunk
  24   ECHIZEN MARU Cargo 2,424 15-16N, 143-12E United States Submarine Sunk
  25   TANGO MARU Cargo 6,200 7-46S, 115-09E United States Submarine Sunk
  25   RYUSEI MARU Passenger-Cargo 4,797 7-56S, 115-14E United States Submarine Sunk
  25   CHOKO MARU Cargo 1,794 15-50N, 144-21E United States Submarine Sunk
  25   NISSHO MARU Tanker 10,526 5-55N, 126-05E United States Submarine Sunk
  26   DAIGEN MARU NO 3 Passenger-Cargo 5,256 00-55S, 139-62E United States Submarine Sunk
  27   TAISOKU MARU Cargo 2,473 1-48N, 127-32E United States Submarine Sunk
  27   CEYLON MARU Cargo 4,905 31-50N, 127-45E United States Submarine* Sunk
  28   AKIURA MARU Passenger-Cargo 6,803 00-06N, 132-53E United States Submarine Sunk
  28   KAIKO MARU Cargo 3,548 50-02N, 155-30E United States Submarine Sunk
  28   SHOHO MARU Cargo 2,723 00-06N, 132-53E United States Submarine Sunk
  29   UCHIDE MARU Passenger-Cargo 5,275 8-57N, 132-52E United States Submarine Sunk
  29   SAKITO MARU Passenger-Cargo 7,126 22-40N, 131-50E United States Submarine Sunk
        112 Vessels 518,697        
March         2 1944 TENYO MARU NO 2 Cargo 657 50-12N, 155-45E Japan Marine Casualty Sunk
  2   SHINKYO MARU Converted Gunboat 2,672 6-25N, 148-31E United States Submarine Sunk
  3   NITTAI MARU Cargo 6,484 3-17N, 123-55E United States Submarine Sunk
  3   AKASHISAN MARU Cargo 4,541 45-52N, 149-16E United States Submarine Sunk
  4   ISEZAKI MARU Cargo 875 37-57N, 124-37E Japan Marine Casualty Sunk
  4   KAYO MARU Passenger-Cargo 4,368 1-28S, 138-40E United States Submarine Sunk
  4   OMINESAN MARU Tanker 10,536 5-32N, 109-09E United States Submarine Sunk
  6   AMERICA MARU Transport 6,070 21-50N, 143-54E United States Submarine Sunk
  8   SHOBU MARU Cargo 1,950 3-38N, 99-12E Great
Britain
Submarine Sunk
  8   JUYO MARU Cargo 5,457 13-10N, 100-50E United States Army Mine Sunk
  8   TOYOKUNI MARU Cargo 5,792 19-23N, 116-13E United States Submarine Sunk
  9   NICHIREI MARU Cargo 5,396 19-47N, 116-13E United States Submarine Sunk
  10   HASSHU MARU Cargo 2,655 2-33S, 140-43E United States Navy Carrier-
Based Aircraft
Sunk
* Probable Agent

--55--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
March         10 1944 TSUKIKAWA MARU Cargo 4,470 1-30S, 128-17E United States Submarine Sunk
  11   DAITOKU MARU Cargo 1,134 40-10N, 137-41E Japan Marine Casualty Sunk
  12   SHINYO MARU Cargo 700 42-00N, 142-00E Japan Marine Casualty Sunk
  12   OKINOYAMA MARU NO 3 Cargo 871 00-25S, 132-55E United States Submarine Sunk
  12   TAIJIN MARU Cargo 1,937 25-53N, 131-19E United States Submarine Sunk
  13   KOKUYO MARU Cargo 4,667 32-58N, 138-52E United States Submarine Sunk
  13   RYUA MARU Cargo 1,925 47-41N, 152-41E United States Submarine Sunk
  13   SHOJIN MARU Cargo 1,942 47-41N, 152-41E United States Submarine Sunk
  14   FUKI MARU Cargo 2,453 37-29N, 141-35E Japan Marine Casualty Sunk
  16   KOFUKU MARU Cargo 1,920 4-28N, 136-56E United States Submarine Sunk
  16   NICHIREN MARU Passenger-Cargo 5,460 42-25N, 144-55E United States Submarine Sunk
  16   ANZAN MARU Passenger-Cargo 5,493 27-41N, 128-41E United States Submarine Sunk
  18   HOKUROKU MARU Passenger-Cargo 8,359 19-22N, 116-52E United States Submarine Sunk
  19   YAKUMO MARU Cargo 3,198 2-55S, 143-40E United States Army Aircraft Sunk
  19   TAIEI MARU Cargo 3,221 2-55S, 143-40E United States Army Aircraft Sunk
  20   YAMABISHI MARU NO 2 Cargo 880 35-30N, 140-44E Japan Marine Casualty Sunk
  20   HAKUYO MARU Cargo 1,327 30-53N, 140-42E United States Submarine Sunk
  20   HOKO MARU Cargo 1,504 10-06N, 138-10E United States Submarine Sunk
  21   BRAKE Tanker 9,925 Indian Ocean Unknown Unknown Sunk
  23   HOKKO MARU Cargo 4,470 35-42N, 140-53E Japan Marine Casualty Sunk
  24   SHINKYO MARU Cargo 5,139 5-27N, 125-38E United States Submarine Sunk
  24   BENGAL MARU Cargo 5,399 5-27N, 125-38E United States Submarine Sunk
  25   KAIRYU MARU Cargo 4,373 33-48N, 130-16E Japan Marine Casualty Sunk
  27   SHINSEI MARU Cargo 575 7-44S, 130-02E Australia Aircraft Sunk
  27   NICHINAN MARU Cargo 2,750 7-31S, 115-57E United States Submarine Sunk
  27   YAMAMIZU MARU Tanker 5,174 3-52S, 109-40E United States Submarine Sunk
  28   YASUSHIMA MARU Cargo 1,911 3-38N, 100-50E Great
Britain
Submarine Sunk
  28   FUKUSEI MARU Cargo 2,219 24-25N, 131-11E United States Submarine Sunk
  30   MATSUEI MARU Cargo 1,877 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   URAKAMI MARU Converted Submarine Tender 4,317 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   TESHIO MARU Cargo 2,840 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   SHINSEI MARU NO 18 Cargo 2,711 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   UNYU MARU NO 2 Tanker 634 7-30N, 134-35E United States Navy Carrier-
Based Aircraft
Sunk
  30   SHOSEI MARU Converted Net Tender 773 7-50S, 134-30E United States Navy Land-
Based Aircraft
Sunk
  30   AKEBONO MARU Tanker 10,182 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   AMATSU MARU Tanker 10,567 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk

--56--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
March         30 1944 ASASHIO MARU Tanker 5,111 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   CHUYO MARU Cargo 1,900 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   GOSHU MARU Aircraft Ferry 8,592 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   GOZAN MARU Cargo 3,213 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   HOKUTAI MARU Cargo 5,220 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   IRO Tanker 6,500 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   KAMIKAZE MARU Motor Torpedo Boat Tender 4,916 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   KIBI MARU Cargo 2,961 7-19N, 134-28E United States Navy Carrier-
Based Aircraft
Sunk
  30   KIBI MARU Cargo 2,759 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   NISSHO MARU NO 5   Converted Net Tender 783 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   OSE Tanker 7,987 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   RAIZAN MARU Cargo 2,813 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   RYUKO MARU Passenger-Cargo 2,764 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   SATA Tanker 6,500 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   NAGISAN MARU Passenger-Cargo 4,391 7-30N, 134-30E United States Navy Carrier-
Based Aircraft
Sunk
  30   ATLANTIC MARU Cargo 5,873 12-15N, 145-42E United States Submarine Sunk
  30   IKUSHIMA MARU Cargo 3,943 20-42N, 143-00E United States Submarine Sunk
  30   FUJIKAWA MARU Cargo 2,829 1-56N, 133-00E United States Submarine Sunk
        67 Vessels 263,805        
April         1 1944 MINAMI MARU Cargo 2,398 25-56N, 131-18E United States Submarine Sunk
  3   TOSEI MARU Passenger-Cargo 2,814 30-00N, 139-44E United States Submarine Sunk
  5   TENRYU MARU Cargo 554 3-35S, 143-38E United States Army Aircraft Sunk
  8   ARATAMA MARU Converted Submarine Tender 6,784 13-16N, 144-45E United States Submarine Sunk
  8   KIZUGAWA MARU Cargo 1,915 13-16N, 144-45E United States Submarine Sunk
  9   HOKUREI MARU Cargo 515 19-00N, 110-00E United States Army Aircraft Sunk
  9   BISAKU MARU Cargo 4,467 15-22N, 145-06E United States Submarine Sunk
  9   HONAN MARU Cargo 5,401 33-50N, 128-01E United States Submarine Sunk

--57--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
April         12 1944 NARITA MARU Cargo 1,915 2-30S, 140-52E United States Army Aircraft Sunk
  12   TAICHU MARU Passenger-Cargo 3,213 28-07N, 129-01E United States Submarine Sunk
  15   SHINYU MARU Passenger-Cargo 4,621 6-41N, 123-40E United States Submarine Sunk
  15   SUMIDA MARU Cargo 2,022 42-02N, 142-22E Japan Mine* Sunk
  16   YAMAGATA MARU Passenger-Cargo 3,807 7-04N, 123-27E United States Submarine Sunk
  16   MITO MARU Passenger-Cargo 7,061 2-02S, 127-20E United States Submarine Sunk
  16   HINO MARU NO 1 Cargo 2,671 2-02S, 127-20E United States Submarine Sunk
  17   MIKAGE MARU NO 2 Cargo 617 2-41S, 141-18E United States Army Aircraft Sunk
  17   MATSUE MARU Cargo 7,061 9-22N, 142-18E United States Submarine Sunk
  19   KUNITSU MARU Cargo 2,724 5-54N, 95-20E United States Great
Britain
Navy Carrier-
Based Aircraft
Aircraft
Sunk
  19   HARUNO MARU Cargo 776 5-54N, 95-20E United States

Great
Britain
Navy Carrier-
Based Aircraft
Aircraft
Sunk
  20   KENRI MARU Cargo 2,913 34-48N, 125-32E Japan Marine Casualty Probably sunk
  20   IWAKUNI MARU Cargo 619 2-10S, 139-50E United States Army Aircraft Sunk
  22   KORYU MARU Cargo 6,680 10-19N, 107-05E United States Army Aircraft Sunk
  22   NAGATA MARU Converted Gunboat 2,969 10-19N, 107-05E United States Army Aircraft Sunk
  22   LONDON MARU Cargo 7,190 10-19N, 107-05E United States Army Aircraft Sunk
  22   YAMAMIZU MARU NO 3 Tanker 5,244 10-39N, 107-05E United States Amy Aircraft Sunk
  23   DAIJU MARU Cargo 1,279 33-35N, 135-45E United States Submarine Sunk
  25   KASHIWA MARU Converted Net Tender 976 7-09N, 116-48E United States Submarine Sunk
  26   WAZAN MARU Cargo 4,851 33-30N, 135-27E United States Submarine Sunk
  26   NOSHIRO MARU Cargo 2,333 28-37N, 141-00E United States Submarine Sunk
  26   TOKIWA MARU Passenger-Cargo 806 6-12N, 125-47E United States Submarine Sunk
  26   YOSHIDA MARU NO 1 Passenger-Cargo 5,425 18-06N, 119-47E United States Submarine Sunk
  27   AKIGAWA MARU Cargo 5,244 14-50N, 142-23E United States Submarine Sunk
  27   MIIKE MARU Passenger-Cargo 11,739 8-20N, 134-53E United States Submarine Sunk
  27   GENBU MARU Passenger-Cargo 1,872 27-20N, 128-15E United States Submarine Sunk
  29   SONG GIANG MARU Cargo 1,065 13-02N, 109-28E United States Submarine Sunk
  29   TAKEGAWA MARU Cargo 1,930 19-26N, 118-45E United States Submarine Sunk
  30   HINO MARU NO 2 Converted Gunboat 998 7-22N, 151-45E United States Navy Carrier-
Based Aircraft
Sunk
  30   NITTATSU MARU Cargo 2,859 19-11N, 119-10E United States Submarine Sunk
        38 Vessels 128,328        
May             1 1944 ASOSAN MARU Cargo 8,812 7-07N, 129-56E United States Submarine Sunk
  2   RYOYO MARU Passenger-Cargo 5,973 48-04N, 153-16E United States Submarine Sunk
  3   AMAGI MARU Passenger-Cargo 3,165 11-00N, 92-00E Great
Britain
Submarine Sunk
  3   SHINGU MARU Cargo 2,745 22-05N, 117-50E United States Army Aircraft Sunk
  3   KENAN MARU Cargo 3,129 15-29N, 145-42E United States Submarine Sunk
* Probable Agent

--58--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
May             3 1944 FUSHIMI MARU Passenger-Cargo 4,935 45-28N, 149-56E United States Submarine Sunk
  3   TEISEN MARU Cargo 5,050 12-54N, 114-07E United States Submarine Sunk
  4   TOYOHI MARU Cargo 6,436 20-51N, 118-02E United States Submarine Sunk
  4   SHORYU MARU Cargo 6,475 20-48N, 118-03E United States Submarine Sunk
  4   EIRYU MARU Converted Net Tender 758 7-04N, 129-18E United States Submarine Sunk
  4   TAIBU MARU Cargo 6,440 20-54N, 118-14E United States Submarine* Sunk
  4   TAIYOKU MARU Cargo 5,244 20-48N, 118-03E United States Submarine* Sunk
  4   KINREI MARU Cargo 5,947 20-58N, 117-59E United States Submarine* Sunk
  5   SHIRANE MARU Cargo 2,825 33-31N, 135-28E United States Submarine Sunk
  6   TOYOURA MARU Cargo 2,510 32-16N, 127-08E United States Submarine Sunk
  6   NISSHIN MARU Tanker 16,801 7-17N, 116-51E United States Submarine Sunk
  6   TENSHINZAN MARU Cargo 6,886 2-42N, 124-10E United States Submarine Sunk
  6   TAIJIMA MARU Passenger-Cargo 6,995 2-42N, 124-10E United States Submarine Sunk
  6   ADEN MAW Passenger-Cargo 5,824 2-42N, 124-10E United States Submarine Sunk
  7   ROSSBACH Tanker 5,894 33-14N, 134-40E United States Submarine Sunk
  8   MIYAZAKI MARU Passenger-Cargo 3,944 41-49N, 141-12E United States Submarine Sunk
  10   OKINAWA MARU Cargo 2,254 11-26N, 143-46E United States Submarine Sunk
  10   MIKAGE MARU NO 18 Passenger-Cargo 4,319 11-26N, 143-46E United States Submarine Sunk
  10   CHOAN MARU NO 2 Converted Gunboat 2,631 11-26N, 143-46E United States Submarine Sunk
  10   SHOHEI MARU Cargo 7,256 15-38N, 119-25E United States Submarine Sunk
  11   CHOI MARU Cargo 1,074 3-30S, 126-06E United States Submarine Sunk
  11   MITAKESAN MARU Passenger-Cargo 4,441 14-58N, 145-26E United States Submarine Sunk
  11   SEIRYU MARU Cargo 1,904 29-30N, 141-40E United States Submarine Sunk
  12   BANEI MARU NO 2 Cargo 1,186 40-01N, 141-58E United States Submarine Sunk
  12   KASUMI MARU Cargo 1,400 5-00N, 100-00E Japan Mine Sunk
  13   ANBO MARU Cargo 4,523 34-31N, 138-33E United States Submarine Sunk
  14   KOHO MARU Cargo 4,291 13-42N, 144-43E United States Submarine Sunk
  14   BISAN MARU Cargo 4,500 9-00N, 133-34E United States Submarine Sunk
  15   JOKUJA MARU Cargo 6,440 10-10N, 131-25E United States Submarine Sunk
  17   SHINREI MARU Cargo 987 5-00S, 110-00E Great
Britain
Navy Aircraft Sunk
  17   TAIKOKU MARU Cargo 2,633 14-57N, 144-47E United States Submarine Sunk
  17   FUKKO MARU Passenger-Cargo 3,834 14-55N, 142-30E United States Submarine Sunk
  17   NICHIWA MARU Cargo 4,955 14-45N, 142-40E United States Submarine Sunk
  18   SHINRYU MARU Cargo 3,181 7-36S, 113-125 United States Submarine Sunk
  20   JINJU MARU Cargo 3,192 21-05N, 117-00E United States Army Aircraft Sunk
  20   SHOSEI MARU Converted Gunboat 998 13-32N, 144-36E United States Submarine Sunk
  20   MIYAURA MARU Cargo 1,856 2-14N, 128-00E United States Submarine Sunk
  20   OTORI MARU Cargo 2,105 5-40S, 105-27E United States Submarine Sunk
  22   KOSHO MARU Cargo 1,365 4-55N, 100-21E Great
Britain
Submarine Sunk
  22   TENPEI MARU Passenger-Cargo 6,094 5-43N, 127-37E United States Submarine Sunk
  22   TSUKUBA MARU Cargo 3,172 21-20N, 117-10E United States Army Aircraft Submarine Sunk
  23   TAIJUN MARU Cargo 2,825 2-38N, 128-08E United States Submarine Sunk
  24   TACHI MARU Passenger-Cargo 1,891 30-00N, 116-48E Japan Marine Casualty Sunk
* Probable Agent

--59--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
May             24 1944 TATEKAWA MARU Tanker 10,090 5-45N, 125-45E United States Submarine Sunk
  24   WALES MARU Passenger-Cargo 6,586 7-16N, 109-04E United States Submarine Sunk
  24   BIZEN MARU Cargo 4,667 7-25N, 108-43E United States Submarine Sunk
  25   TAITO MARU Passenger-Cargo 4,466 11-30N, 134-55E United States Submarine Sunk
  25   OSAKA MARU Passenger-Cargo 3,740 11-30N, 134-55E United States Submarine Sunk
  26   CHIYO MARU Cargo 657 20-30N, 141-45E United States Submarine Sunk
  26   SANYO MARU Converted Seaplane Tender 8,360 2-48N, 124-19E United States Submarine Sunk
  26   AKISHIMA MARU Cargo 1,993 33-48N, 131-33E United States Army Mine Sunk
  29   ANSHU MARU Converted Gunboat 2,601 3-40S, 126-58E United States Submarine Sunk
  29   SHOKEN MARU Cargo 1,949 16-23N, 144-59E United States Submarine Sunk
  29   HORAIZAN MARU Cargo 1,999 16-23N, 144-59E United States Submarine Sunk
  30   SHIGA MARU Cargo 742 33-15N, 134-11E United States Submarine Sunk
  30   SHISEN MARU Cargo 2,201 24-30N, 122-30E United States Submarine Sunk
  31   HOKUYO MARU Cargo 1,590 48-00N, 153-00E United States Submarine Sunk
  31   KOTO MARU Cargo 1,053 47-52N, 151-02E United States Submarine Sunk
  31   MADRAS MARU Passenger-Cargo 3,802 48-21N, 151-19E United States Submarine Sunk
        64 Vessels 258,591        
June           1 1944 TOHO MARU Cargo 4,716 18-13N, 141-19E United States Submarine Sunk
  1   IWAKI MARU Cargo 3,124 48-00N, 153-00E United States Submarine Sunk
  1   HIBURI MARU Passenger-Cargo 4,365 48-00N, 153-00E United States Submarine Sunk
  2   CHIYO MARU Cargo 4,700 20-53N, 140-17E United States Submarine Sunk
  4   KATSUKAWA MARU Cargo 6,886 19-35N, 138-43E United States Submarine Sunk
  4   HAKUSAN MARU Transport 10,380 22-55N, 136-44E United States Submarine Sunk
  5   ASHIZURI Tanker 2,166e 6-32N, 120-40E United States Submarine Sunk
  5   TAKASAKI Tanker 2,500e 6-32N, 120-40E United States Submarine Sunk
  5   TAMAHIME MARU Cargo 3,080 17-37N, 140-32E United States Submarine Sunk
  5   TAKAOKA MARU Passenger-Cargo 7,006 17-37N, 140-32E United States Submarine Sunk
  6   KASHIMASAN MARU Cargo 2,825 16-41N, 142-43E United States Submarine Sunk
  6   HAVRE MARU Cargo 5,652 16-41N, 142-43E United States Submarine Sunk
  8   SHIOYA Tanker 4,000e 3-04N, 124-03E United States Submarine Sunk
  10   HIYOSHI MARU Cargo 535 3-05N, 99-56E Great
Britain
Submarine Sunk
  10   KINMON MARU Cargo 2,676 1-17S, 103-51E Japan Marine Casualty Sunk
  11   ASANAGI MARU Tanker 5,142 6-20N, 120-47E United States Submarine Sunk
  11   TOTEN MARU Cargo 3,823 46-58N, 143-50E United States Submarine Sunk
  11   CHIHAYA MARU Cargo 1,161 46-58N, 143-50E United States Submarine Sunk
  12   KAINAN MARU Cargo 1,133 7-54N, 98-27E Great
Britain
Submarine Sunk
  12   KEIYO MARU Passenger-Cargo 6,442 15-14N, 145-44E United States Navy Carrier-
Based Aircraft Surface Craft
Sunk
  12   BATAVIA MARU Passenger-Cargo 4,392 17-32N, 143-17E United States Navy Carrier-
Based Aircraft
Sunk
  12   FUKOKU MARU Cargo 2,851 17-30N, 144-00E United States Navy Carrier-
Based Aircraft
Sunk

--60--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
June           12 1944 HINKO MARU Cargo 5,418 17-28N, 144-19E United States Navy Carrier-Based Aircraft Sunk
  12   IMIZU MARU Passenger-Cargo 2,924 17-30N, 144-00E United States Navy Carrier-Based Aircraft Sunk
  12   KOKKO MARU Converted Net Tender 716 17-32N, 144-01E United States Navy Carrier-Based Aircraft Sunk
  12   NITCHO MARU Cargo 1,900e 17-31N, 143-10E United States Navy Carrier-Based Aircraft Sunk
  12   REIKAI MARU Cargo 2,750 17-30N, 144-00E United States Navy Carrier-Based Aircraft Sunk
  12   MOJI MARU Passenger-Cargo 3,831 17-31N, 144-10E United States Navy Carrier-Based Aircraft Sunk
  12   MUTSUYO MARU Cargo 2,726 15-14N, 145-44E United States Navy Carrier-Based Aircraft Sunk
  12   TENRYUGAWA MARU Cargo 3,883 17-30N, 144-00E United States Navy Carrier-Based Aircraft Sunk
  12   SHINTO MARU Cargo 2,245 17-28N, 144-19E United States Navy Carrier-Based Aircraft Sunk
  13   TAKASHIMA MARU Passenger-Cargo 5,633 50-47N, 151-20E United States Submarine Sunk
  14   KOAN MARU Cargo 3,183 4-31N, 122-25E United States Submarine Sunk
  15   KOA MARU NO 2 GO Cargo 572 15-10N, 145-58E United States Navy Carrier-Based Aircraft Probably sunk
  15   KANZAKI MARU Cargo 1,285 36-01N, 129-41E Japan Marine Casualty Sunk
  15   TATSUTAGAWA MARU Cargo 1,923 25-02N, 144-37E United States Navy Carrier-Based Aircraft
Surface Craft
Sunk
  15   KANSEISHI MARU Cargo 4,804 29-30N, 141-11E United States Submarine Sunk
  16   HINODE MARU Cargo 1,916 1-01N, 127-49E United States Army Aircraft Sunk
  16   SHOFUKU MARU Cargo 839 00-53S, 131-15E United States Army Aircraft Sunk
  16   YUKI MARU Cargo 5,704 2-19N, 128-40E United States Submarine Sunk
  16   NANSHIN MARU Passenger-Cargo 1,422 2-28N, 118-09E United States Submarine Sunk
  17   KINYU MARU Cargo 529 00-54S, 131-15E United States Army Aircraft Sunk
  17   NIPPONKAI MARU Motor Torpedo Boat Tender 2,681 6-58N, 127-52E United States Submarine Sunk
  17   KINSHU MARU Cargo 5,591 6-17N, 126-17E United States Submarine Sunk
  18   EIKO MARU Cargo 3,011 5-59N, 99-10E Great
Britain
Submarine Sunk
  20   GENYO MARU Tanker 10,018 15-30N, 133-55E United States Navy Carrier-Based Aircraft Sunk
  20   SEIYO MARU Tanker 10,536 15-30N, 133-55E United States Navy Carrier-Based Aircraft Sunk
  20   HIBI MARU Passenger-Cargo 5,874 5-35N, 125-15E United States Submarine Sunk
  21   KANAN MARU Cargo 3,312 4-04S, 116-45E United States Submarine Sunk
  22   NAGARAGAWA MARU Passenger-Cargo 990 34-35N, 137-56E United States Submarine Sunk
  23   SHOUN MARU Passenger-Cargo 4,396 14-10N, 145-10E United States Navy Carrier-
Based Aircraft
Sunk
  24   ASO MARU Passenger-Cargo 3,028 9-57N, 125-07E United States Submarine Sunk

--61--

Date    Name of Vessel    Type of Vessel Gross
Tonnage
Location Flag of
Agent
Type of Agent Assessment
June           24 1944 KUMANOYAMA MARU Cargo 2,857 34-36N,
139-32E
United
States
Submarine Sunk
  24   TAMAHOKO MARU Passenger-Cargo 6,780 32-30N,
129-35E
United
States
Submarine Sunk
  24   TAINAN MARU Cargo 3,175 32-30N,
129-35E
United
States
Submarine Sunk
  24   NASUSAN MARU Passenger-Cargo 4,399 32-30N,
129-35E
United
States
Submarine Sunk
  24   KENNICHI MARU Cargo 1,938 32-30N,
129-35E
United
States
Submarine* Sunk
  25   YAMAMIYA MAR