Doctor of Philosophy, Osaka Medical School. Doctor of Medicine, Osaka Medical School, 1955.
Assistant professor pediatrics surgery Osaka Medical School, 1990—1993, lecturer pediatrics surgery, 1998—2002. Director department pediatrics surgery Kure National Hospital, Japan, 1994—1996. Senior consultant Osaka Medical Center Maternal and Child Health, 1996—1998, deputy director pediatrics surgery, since 2002.
Visiting researcher Royal Adelaide Hospital, Australia, 1992—1993.
Member of Japanese Society Pediatrics Surgeons.
Married Ryoko Kawahara. Children: Mio, Ryo, Hiroshi.