2010-present             Professor, Division of Orthodontics, Department of Human Development and Fostering, Meikai University School of Dentistry
2005-2010                  Lecturer, Maxillofacial Orthognathics, Graduate School, Tokyo Medical and Dental University
1998-2004                  Assistant Professor, Maxillofacial Orthognathics, Graduate School, Tokyo Medical and Dental University
1996-1997                  Research Fellow of the Japan Society for the Promotion of Science
1993-1995                  Visiting Academics, St. Vincent Institute of Medical Research, Melbourne University
1988-1992                  Graduate School, Tokyo Medical and Dental University (PhD)
1982-1988                  Faculty of Dentistry, Hokkaido University