Doctor of Philosophy (honorary), Tokushima University, Japan, 1974.
Assistant Hamamatsu Medical University, Japan, 1976—1978. Monbukagakusho-sponsored Japanese overseas research fellow Michael Reese Hospital and Medical Center, University Chicago, 1978—1980. Assistant Miyazaki Medical college, 1980—1982, associate professor Japan, 1982—1989, Okayama Junior College, Japan, 1989—1993, Okayama University, Soja, Japan, 1993—1997.
Professor Kurashiki University of Science and Arts, Japan, since 1997. Chairman College Life Science, Kurashiki University of Science and Arts, 2001—2002, Kurashiki, 2002—2006. Chairperson Okayama Tempeh Association, Japan, since 2004.
Married Sumi Chieko, January 26, 1969. 1 child Sumi Yotaro.