- 2004 - - 横浜商科大学商学部 教授
- 2004 - - Professor, Faculty of Commerce,
- 1998 - 2003 Yokohama College of Commerce Yokohama College of Commerce
- 1998 - 2003 Associate Professor, Faculty of Commerce,
- 1995 - 1997 Yokohama College of Commerce Yokohama College of Commerce
- 1995 - 1997 Assistant Professor, Faculty of Commerce,
- Yokohama College of Commerce
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