- 1998 - 2002 Aikoku Gakuen University
- 1998 - 2002 Assisant Professor, Aikoku Gakuen University
- 2002 - - 愛国学園大学 教授
- 2002 - - Professor, Aikoku Gakuen University
- 1992 - 1999 The Open University of Japan
- 1992 - 1999 Instructor, University of The air
- 1992 - 1997 Aikoku Gakuen Junior College
- 1992 - 1997 Professor,Aikoku Gakuen Junior College
- 1983 - 1991 Aikoku Gakuen Junior College
- 1983 - 1991 Assistant Professor,Aikoku Gakuen Junior College
- 1977 - 1982 Aikoku Gakuen Junior College
- Instructor,Aikoku Gakuen Junior College
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