| 1991.4
- 1992.3 |
-, -, Toshiba Corporation |
| 1995.7
- 1996.5 |
Postdoctoral Fellow of Japan Society for the Promotion of Science, -, Japan Society for Promotion of Science |
| 1996.4
- 1996.5 |
Part-time Assistant Professor, Faculty of Languages and Cultures, Meikai University |
| 1996.6
- 2001.3 |
Assistant, Institute for Research in Humanities, Kyoto University |
| 1997.4
- 2000.3 |
Part-time Assistant Professor, 短期大学部, Doshisha Women's College of Liberal Arts |
| 1999.4
- 2001.3 |
Part-time Assistant Professor, School of Letters, Kobe College |
| 2000.10
- 2001.3 |
Part-time Assistant Professor, School of Letters, Osaka University |
| 2001.4
- 2007.3 |
Associate Professor, Graduate School of Language and Society, Hitotsubashi University |
| 2002.10
- 2003.3 |
Part-time Assistant Professor, 人文学部, Tokyo Metropolitan University |
| 2003.4
- 2003.9 |
Part-time Assistant Professor, 文学部, Kanazawa University |
| 2007.4
- 2019.3 |
Associate Professor, Graduate School of Language and Society, Hitotsubashi University |
| 2009.4
- 2009.9 |
Part-time Assistant Professor, Graduate School of Humanities, Kobe University |
| 2011.4
- 2011.9 |
Part-time Assistant Professor, College of Arts and Sciences, The University of Tokyo |
| 2011.8
- 2011.9 |
Part-time Assistant Professor, Faculty of Humanities and Social Sciences, Iwate University |
| 2012.2
- 2012.3 |
Part-time Assistant Professor, Faculty of Law and Letters, University of the Ryukyus |
| 2019.4
- |
Professor, Graduate School of Language and Society, Hitotsubashi University |