Doctor Medical Science, University Tokyo, 1969. Doctor of Medicine, Mie Prefecture University, Japan, 1964.
Intern Mie Prefectual University Hospital, Tsu, Japan, 1965. Research associate Tokyo Women's Medical College, 1970-1982. Associate professor Kyorin University School Medicine, Mitaka, Japan, 1982-1985.
Professor Kyorin University School Health Science, Hachioji, Japan, 1985-1999. Physician Musashi Institute of Technology, Tokyo, since 1999.
Married Itsuko Hosaka, December 20, 1968.