Doctor of Medicine, Kumamoto University, 1980. Doctor of Philosophy, Kumamoto University, 1986.
Visiting associate fellow National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 1988—1992. Associate director surgery Kumamoto National Hospital, 1993—1995. Assistant professor surgery II Graduate School Medical Science Kumamoto University, 1996—2000, associate professor department gastroenterological surgery Graduate School Medical Science, 2002—2005.
Director surgery Yatsushiro Health Insurance General Hospital, Japan, 2000—2001. Director department surgery Kumamoto City Hospital, since 2005. Associate director Kumamoto Cancer Organization, since 2005.
Fellow: Japanese Gastric Cancer Association (licentiate), Japanese Society for Gastroenterological Carcinogenesis (licentiate). Member: Japanese Society Gastroenterological Surgery, Society for Japanese College Surgeons (licentiate), Japanese Cancer Association (licentiate), Japan Society for Gastroenterological Endoscopy (licentiate), Japanese Society Gastroenterology (licentiate award 2002), Japanese Cancer Association (licentiate), Japan Surgical Society (licentiate).
Married Noriko Oono, March 10, 1955. Children: Asako, Kaoru.