Doctor of Medicine, Okayama University Graduate School Medicine and Dentistry, 1980.
Director department cardiology Sakakibara Hospital Cardiovasc. Center, Okayama, 1992—2005, Okayama Kyokuto Hospital, since 2010. Chairman Okayama Central Hospital Department Cardiovasc.
Clinical associate professor Okayama University Graduates School Medicine and Dentistry, 2000—2005.
Member of Japanese Society Cardiovasc. Imaging and Dynamics, Japanese College Cardiology, Japanese Society Internal Medicine, Japanese Association Cardiovasc. Intervention Therapeutics, Japanese Circulation Society.
Married Shoko Komiyama. Children: Keiichiro, Iori.