Doctor of Medicine, Yokohama City University, 1990. Doctor of Philosophy, Yokohama City University, 1998.
Medical practitioner, researcher Yokohama City University Medical Center, Japan, 2000—2002, Hiratsuka Kyosai Hospital, Hiratsuka, since 2002. Director, department neurology Hiratsuka Kyosai Hospital, since 2002, director, stroke center, since 2005.
Fellow: Japanese Neuro-ophthalmology Society (licentiate). Member: Japan Stroke Society (licentiate), Societas Neurologia Japonica (licentiate).