Doctor of Medicine, Okayama University, Medical School, 1983. Doctor of Philosophy, Okayama University, Medical School, 1987.
Doctor of Medicine dermatology Mitoyo General Hospital, Kan-on-ji, 1987—1989. Visiting scientist University Cincinnati, 1991—1993. Assistant lecturer Okayama University Medical School, Japan, 1987, Kochi Medical School, Nankoku, Japan, 1989—1993, assistant professor, 1993—1999, associate professor, 1999—2007, professor, University Hospital, 2007—2009.
Professor Kochi Women's University, since 2009.
Member of Society Investigative Dermatology, Japanese Society Investigative Dermatology, Japanese Dermatological Association.
Married Katsue Ikeda, September 16, 1985. 1 child Ailee.