Kyushu University (M.D.1987)
Chiba University (Professor of GST 2007~ )
Kyushu University (Academic position 2000-2007)
Kyushu Cancer Center (Stuff, 1999-2000)
Kyushu University (Residency 1987-1989)
Kyushu University Institute of Bioregulation (Ph.D. 1989-1982)
Harvard Medical School (Research Resident 1992-1994)
University of Occupational and Environmental Health (Training of GTS 1995-1999)