- 1991 - 2002 Gunma University
- 1991 - 2002 Professor, Faculty of Education,
- 1983 - 1991 Gunma University
- 1983 - 1991 Associate Professor, Faculty of Education,
- 1982 - 1983 Kyushu Dental College
- 1982 - 1983 Associate Professor, Kyushu Dental College
- 1971 - 1982 Kyushu Dental College
- 1971 - 1982 Aaaistant Professor, Kyushu Dental College
- 1970 - 1971 鹿児島短期大学講師
- 1970 - 1971 Aaaistant Professor, Kagoshima Junior College
- 1969 - 1970 鹿児島短期大学助手
- 1969 - 1970 Research Associate, Kagoshima Junior College
- Gunma University
Show all