was an admiral in the Imperial Japanese Navy during World War II.
JÃ Âjima was from Saga Prefecture. He was a graduate of the 40th class of the Imperial Japanese Naval Academy in 1912, where he placed 111th out of 144 cadets. He served as midshipman on the cruiser and battlecruiser . After being commissioned as ensign, he was assigned to the battlecruiser and then , and then back to Ikoma.
As a sub-lieutenant, he served on , battleship , and the destroyer . He was promoted to lieutenant in 1919 after attending advanced navigation courses, and became chief navigator on the patrol boat Manshu, transport Takasaki, minelayer Katsuriki, seaplane carrier , oiler Shiriya, cruisers , , , , and aircraft carrier .
Promoted to commander in 1931, JÃ Âjima was assigned as executive officer on the aircraft carriers and . On 17 April 1941, he became captain of the aircraft carrier .
Jà Âjima was still captain of Shà Âkaku during the attack on Pearl Harbor, the Battle of Rabaul, the Indian Ocean Raid, Operation Mo, the Battle of the Coral Sea.
JÃ Âjima was promoted to rear admiral on 1 May 1942. As commander of naval aviation units throughout the war, he also led the seaplane tenders of R-Area Air Force that participated in the defense of Guadalcanal during the Guadalcanal campaign including the Battle of Cape Esperance and Japanese efforts to recapture Henderson Field in 1942.
Surviving the war, JÃ Âjima died in 1967.