Doctor of Medicine, Tottori University, Yonago, Japan, 1985. D Medical Science, Hamamatsu University Graduate School Medicine, Japan, 1989.
Resident in surgery 2d National Tokyo Hospital, 1989—1991, Hamamatsu University School Medicine, 1991—1993, instructor surgery, 1997—2000, assistant professor surgery, since 2000. Research fellow Beth Israel Hospital, Harvard Medical School, Boston, 1993—1996.
Fellow: American College of Surgeons, Society Critical Care Medicine, American Gastroenterological Association (international).
Married Yuko Unno, April 27, 1991.