Tatsuno Maru was a Japanese passenger-cargo ship. The movement record at combinedfleet.com says Kawasaki Kisen laid her down at Kobe on 17 September 1915 as a 7,296-ton ship for the Nippon Yusen Kaisha, launched her on 21 March 1916 and completed her on 20 May 1916. She sailed between Japan, Europe and Canada. The existing site figure for her size is 6,960 tons. The two figures differ and the sources do not say why.
In January 1942 she left Mutsure with the transports carrying the 2nd Infantry Division and took part in the Western Java landing. On the night of 28 February 1942, in Bantam Bay, the cruisers Houston and Perth attacked the convoy. Combinedfleet.com says Tatsuno Maru ran aground while avoiding a torpedo and was later raised. Wikipedia says she was sunk with Sakura Maru by a spread of torpedoes from Mogami that missed the Allied cruisers, and was later raised and repaired. The sources agree that she was raised.
She was converted into an emergency tanker and requisitioned by the Navy on 19 February 1943. On the night of 15 January 1944, in the Luzon Strait about 75 miles north of Luzon, the submarine Thresher fired four torpedoes at her. Two hit her No. 2 hold. She exploded and broke in two, and the after part, still afire, stayed afloat until the crew abandoned it on 16 January. She sank that day. Eight passengers and 12 crewmen were killed.