Doctor of Medicine, Tohoku University, Sendai, Japan, 1989. Doctor of Philosophy, Tohoku University, Sendai, Japan, 1996. Master in Public Health, University Edinburgh, Scotland, 1991.
Master of Arts in Health Services, Leeds (England) University, 1992.
Intern Keio University Medical School, Japan, 1989-1990. Research fellow, registrar Barnet Health Authority, London, 1993-1994. Assistant professor Tokyo University, 1994-1995, Tohoku University Medical School, 1995-1997.
Head research unit National Institute Longevity Sciences, Nagoya, Japan, since 1998. Consultant Institute Health Economic and Policy, Tokyo, since 1996, Japanese Organization Quality Assurance on Health Care, Tokyo, since 1997, principal investigator for carers' burden project, Ministry, 1999.
Member Society Social Medicine, Japanese Public Health Association.