Doctor of Medicine, Keio University School Medicine, 1977.
Instructor department neurology Keio University School Medicine, Tokyo, 1984. Head department neurology Mihara Memorial Hospital, Isesaki, 1985-1987. Chief neurology clinic Keio University Hospital, 1990-1996.
Chief department neurology Tachikawa Hospital, 1996—2006, Shizuoka Red Cross Hospital, Japan, since 2006, deputy director, since 2008.
Member Japanese Society Neurology (council), Japanese Society Stroke (council), Japanese Society Cerebral Blood Flow and Metabolism (council)., International Society Cerebral Blood Flow and Metabolism, International Stroke Society.
Married Junko Kitahara, June 24, 1984. Children: Kazutoshi, Yusuke, Asuka.