Kōryū Maru, ex-Type 2E wartime standard cargo ship, 870 long tons gross Launched at Kawanami Kōgyō-Fukabori Shipyard on 22 June 1944, completed on 16 July 1944, transportation duty in Japanese coastal waters between 1944 1945, enlisted by the Navy on 6 May 1945, armaments install started at Hitachi Zōsen-Innoshima on 9 May 1945, classified to auxiliary minelayer and assigned to the Escort Fleet on 7 July 1945, sunk by air raid at Innoshima on 28 July 1945, discharged on 22 May 1946.