Doctor of Medicine, Hokkaido University, 1979. Doctor of Philosophy, Jikei Medical School, Tokyo, 1987.
Research fellow University of California at Los Angeles, 1985-1986. Associate professor pharmacology Jichi Medical School, Tochigi, since 1993.
Member Japanese Nephrology Society (council, Ohshima award 1994), American Society Nephrology, Japanese Circulation Society (Uchida award 1994), American Physiological Society.
Married Akiko Harada, March 3, 1984. Children: Syunji, Mio.