Bachelor of Medicine, Akita (Japan) University, 1982. Doctor of Medicine, Akita (Japan) University, 1989.
Resident Akita (Japan) University Hospital, 1982-1992. Assistant professor Akita University, 1992-1995. Chief Nakadori General Hospital, Akita, since 1995.
Fellow Japanese Society Nephrology, Japan Society Ultrasonics in Medicine, Japanese Urological Association, American Urological Association (correspondent member).
Married Miwako Sasaki, March 24, 1984. Children: Naoko, Eriko, Saeko.