Doctor of Medicine, Hiroshima University Faculty Medicine, 1990. Doctor of Philosophy, Hiroshima University Graduate School Medical Pharmaceutical Sciences, 1996.
Research associate Hiroshima University, 1996—1998. Staff anesthesiologist Hiroshima Red Cross Atomic Bomb Survivors Hospital, 1998—2002. Director Hiroshima General Hospital, Japan, 2002—2007.
Assistant professor Saitama Medical University, Iruma-gun, Japan, since 2007.
Married Miyako Hotta. Children: Haruka, Takeshi.