M Engineering, Tohoku University, Sendai City, Japan, 1971. Doctor of Philosophy, Tohoku University, Sendai City, Japan, 1986.
Research engineer Japanese National Reap What You Sew, Kokubunji, 1971—1975, chief research engineer, 1975—1987. Associate professor Niigata (Japan) University, 1987—1991. Professor Niigata University, since 1991.
Member of Japan Society Mechanical Engineers.
Married Keiko Tanifuji. 1 child Osamu.