- 2023/04 - 現在 Keio University Graduate School of Business Administration Eisai Chaired Professor of Accounting
- 2011/04 - 現在 Keio University Graduate School of Business Administration Professor of Accounting
- 2007/04 - 2011/03 Keio University Graduate School of Business Administration 准教授
- 2005/09 - 2007/03 Keio University Graduate School of Business Administration Associate Professor of Accounting
- 2003/02 - 2005/08 Assistant Professor of Accounting, School of Administrative Studies, Joseph E. Atkinson Faculty of Liberal and Professional Studies, York University, Toronto, Ontario, Canada.
- 2003/02 - 2005/08 Department of Administrative Studies, Joseph E. Atkinson Faculty of Liberal and Professional Studies, York University, Toronto, Ontario, Canada, Assistant Professor of Accounting
- 2002/08 - 2003/01 Lecturer of Accounting, School of Administrative Studies, Joseph E. Atkinson Faculty of Liberal and Professional Studies, York University, Toronto, Ontario, Canada.
- 2002/08 - 2003/01 Department of Adminstrative Studies, Joseph E. Atkinson Faculty of Liberal and Professional Studies, York University, Toronto, Ontario, Canada, Lecturer of Accounting
- 1997/04 - 1998/08 東京大学大学院経済学研究科 特別研究員