Bachelor of Laws, Tokyo Imperial University, 1941.
Director Minerals and Oils Bureau Ministry of International Trade and Industry, Tokyo, 1964—1966, deputy vice minister, 1966—1968, director Industrial Policy Bureau, 1968—1969, administrative vice minister, 1969—1971. Member industrial technical council, industrial structure council Ministry of International Trade and Industry, since 1973. Director, president Arabian Oil Corporation Ltd., Tokyo, 1976—1982, director, counsellor, since 1982, Fuji Oil Corporation Ltd., Tokyo, since 1983.
Lieutenant Commander Japanese Imperial Navy, 1945.
Married Rei Eto Ojimi, March 3, 1944. Children: Yukiko, Takato.