[Llarry]

Shinano was the largest, but not the only, IJN carrier sunk by American submarines during World War II. The others:
-- IJNS Taiho sunk June 19, 1944 by USS Albacore (SS 218) with a single torpedo hit
-- IJNS Shokaku sunk 19 June as well but by USS Cavalla (SS 244) (All these ships were participants in the battle of the Philippine Sea)
-- IJNS Unryu sunk December 19, 1944 by USS Redfish (SS 395)

Carrier aircraft sank another eight IJN carriers during the war with bombs and torpedoes; the photo is of IJNS Zuiho under attack during the battle of Leyte Gulf on October 25, 1944.