Bachelor of Science, Kyoto University, 1958. Master of Engineering, Kyoto University, 1960. Doctor of Engineering, Kyoto University, 1966.
Associate professor Kyoto University, 1965-1988. Professor National Defense Academy, Yokosuka, Japan, 1988-2000, professor emeritus Japan, since 2000. Chairman of mathematics and physics National Defense Agency, 1991-1992, dean graduate school, 1996-1999, academy senator, 1995-1999.
Chairman board directors Tozanryu Shakuhachi Foundation, since 2000. Member Japan Society of Powder and Powder Metallurgy (academy senator 1996-1999, Prize for Research Activity 1992, 95).
Married Yoshiko Sakata, August 25, 1960. Children: Sumiki, Naoko.