- 2017/08/06 - 2017/08/09 Tohoku University Graduate School of Arts and Letters
- 2015/08/02 - 2015/08/05 Osaka University Graduate School of Letters
- 2013/08/21 - 2014/09/20 Harvard University, Department of Linguistics, Visiting Scholar
- 2013/07/31 - 2013/08/03 Kwansei Gakuin University Graduate School of Humanities
- 2011/08/05 - 2011/08/10 大阪府立大学大学院言語文化研究科・非常勤講師(集中講義)
- 2009/04/01 - Faculty of Law, Ritsumeikan University
- 2007/04/01 - 2009/03/31 Faculty of Education, University of the Ryukyus, Associate Professor
- 1999/10/01 - 2007/03/31 Faculty of Education, University of the Ryukyus, Associate Professor
- 1998/04/01 - 1999/09/30 Faculty of Education, University of the Ryukyus, Lecturer
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Foreign Language and Literature Society of Okinawa
, Japanese Cognitive Science Society
, The Society of Japanese Grammar
, The English Literary Society of Japan
, Kansai Linguistic Society
, The Linguistic Society of Japan
, The English Linguistic Society of Japan