Doctor of Medicine, Shiga University Medical Science, Otsu, Japan, 1988. Doctor of Philosophy, Shiga University Medical Science, Otsu, Japan, 1994.
Trainee 3d department medicine Shiga University Hospital, 1988-1993. Member staff Kashiwara (Japan) City Hospital, 1993-1994, National Cardiovasc. Center Hospital, Suita, Japan, 1994-1999, Osaka Rosai Hospital, Sakai, Japan, since 1999.
Member Japanese Society Nephrology (Oshima award 1999).
Married Midori Okumura, March 9, 1987. Children: Asami, Tomoki, Kayo.