Bachelor of Science, University Tokyo, 1945, Doctor of Philosophy. in Chemistry, 1951. Principal officer Japan Atomic Energy Research Institute, Tokai, 1956-1959, International Atomic Energy Agency, Vienna, Austria, 1959-1968. Adviser Seiko Instruments & Electronics Ltd., Tokyo, 1968, director, 1969, executive vice president, since 1985.
Member Radiation Council, Government Japan, since 1978. Adviser Japan Atomic Industrial Forum, since 1970. Auditor Institute Nuclear Materials Management, Tokyo, since 1980.