- 2019/04/01 - 現在 Nagoya University Vice President
- 2017/04/01 - 現在 Nagoya University Graduate School of Humanities Department of Humanities 1 Professor
- 2015/04/01 - 現在 Nagoya University Graduate School of Letters Dean
- 2017/04/01 - 2019/03/31 Nagoya University Graduate School of Humanities Dean
- 2008/04/01 - 2017/03/31 Nagoya University Graduate School of Letters Department of Humanities Professor
- 2013/04/01 - 2015/03/31 Nagoya University
- 2012/04/01 - 2015/03/31 Nagoya University Graduate School of Letters
- 2010/04/01 - 2012/03/31 Nagoya University
- 2008/04 - Professor, Department of Linguistics, Graduate School of Letters, Nagoya University
- 2007/04/01 - 2008/03/31 Nagoya University Graduate School of Letters Department of Humanities Associate professor
- 2007/04 - 2008/03 Associate Professor, Department of Linguistics, Graduate School of Letters, Nagoya University
- 2007/03/31 - Nagoya University Graduate School of Letters Department of Humanities Assistant Professor
- 1999/04 - 2007/03 Associate Professor, Department of Linguistics, Graduate School of Letters, Nagoya University
- 1996/05 - 1999/03 Associate Professor, Department of Linguistics, School of Letters, Nagoya University
- 1992/11 - 1996/04 Lecturer, Department of Linguistics, School of Letters, Nagoya University
- 1991/04 - 1994/07 Part-time Lecturer, Department of Nordic Studies, School of Letters, Tokai University