- 2023/06 - 2023/12 Thammasat University Language Institute Visiting Pr
- 2023/03 - 2023/03 Chulalongkorn University Graduate School, English as an International Language Instructor
- 2019/11 - 2023/03 Chuo University
- 2020/09 - 2022/07 The University of Tokyo College of Arts and Sciences Adjunct Lecturer
- 2021/04 - 2022/03 Gakushuin University Faculty of Letters Part-time lecturer
- 2021/02 - 2021/02 Chulalongkorn University Graduate School, English as an International Language Instructor
- 2019/07/27 - 2019/09/10 "Visiting By-Fellow, Churchill College, University of Cambridge"
- 2019/07/27 - 2019/09/10 Visiting By-Fellow, Churchill College, University of Cambridge
- 2015/05 - 2019/05 Chuo University Councilor
- 2018/10/01 - 2019/03/30 "Visiting Professor, Language Institute, Thammasat University, Thailand"
- 2018/10/01 - 2019/03/30 Visiting Professor, Language Institute, Thammasat University, Thailand
- 2018/03/30 - 2018/09/30 "Visiting By-Fellow, Churchill College, University of Cambridge"
- 2018/03/30 - 2018/09/30 Visiting By-Fellow, Churchill College, University of Cambridge
- 2016/07 - 2016/10 Universiti Teknorogi Malaysia Johor Bahru Language Academy Visiting Professor
- 2016/02 - 2016/05 Universiti Technologi Malaysia Johor Bahru Language Academy Visiting Professor
- 2011/01 - 2014/11 "Vice President, Chuo University"
- 2011/10 - 2012/03 "Part-time lecturer, Tokyo University of Foreign Studies"
- 2009/10 - 2012/03 "Part-time lecturer, Shizuoka University"
- 2010/04 - 2011/03 "Part-time lecturer, Tokyo Keizai University"
- 2008/04 - 2011/03 東京学芸大学教育学部非常勤講師
- 2009/04 - 2010/03 Gakushuin University Faculty of Literature Adjunct Lecturer
- 2009/04 - 2010/03 "Part-time lecturer, Tokyo University of Foreign Studies"
- 2008/08 - 2008/08 "Part-time lecturer, Tsukuba University"
- 2008/08 - 2008/08 Part-time lecturer, Tsukuba University
- 2002/07 - 2007/12 "External Examiner, MA in language Learning and Japanese Language Teaching, University of Greenwich"
- 2002/07 - 2007/12 External Examiner, MA in language Learning and Japanese Language Teaching, University of Greenwich
- 2005/04 - 2006/03 群馬県立女子大学大学院文学研究科非常勤講師
- 2005/04 - 2006/03 "Part-time lecturer, Osaka University of Foreign Studies"
- 2005/04 - 2006/03 "Part-time lecturer, Gunma Prefectural Women's University"
- 2005/04 - "Professor, Chuo University"
- 2004/04 - 2005/03 早稲田大学大学院教育学研究科非常勤講師
- 2004/04 - 2005/03 "Part-time lecturer, Waseda University"
- 2004/04 - 2005/03 "Professor, Gunma Prefectural Women's University"
- 1999/04 - 2004/03 "Associate Professor, Gunma Prefectural Women's University"
- 2002/07 - 2002/08 "Visiting Fellow, Research Centre for English and Applied Linguistics, University of Cambridge,"
- 2002/07 - 2002/08 Visiting Fellow, Research Centre for English and Applied Linguistics, University of Cambridge,
- 2002/04 - 2002/08 "Visiting Professor, Department of Language and Linguistics, University of Essex"
- 2002/04 - 2002/08 Visiting Professor, Department of Language and Linguistics, University of Essex
- 1998/04 - 2000/03 "Part-time lecturer, Waseda University"
- 1999/12 - 1999/12 "Part-time lecturer, Shizuoka University"
- 1997/04 - 1999/03 "Lecturer, Guma Prefectural Women's University"
- 1995/10 - 1997/01 "The University of Cambridge Local Examinations Syndicate, a member of the board of examinations in Japanese language"
- 1995/10 - 1997/01 The University of Cambridge Local Examinations Syndicate, a member of the board of examinations in Japanese language
- 1996/02 - 1996/10 "Cambridge Parkside Community College, Part-time Lecturer"
- 1996/02 - 1996/10 Cambridge Parkside Community College, Part-time Lecturer
- 1995/01 - 1996/10 "Cambridge Arts and Science College, Part-time Lecturer"
- 1995/01 - 1996/10 Cambridge Arts and Science College, Part-time Lecturer
- 1995/01 - 1995/03 "University of Cambridge, Research Centre for English and Applied Linguistics, M Phil in English and Applied Linguistics, Tutor"
- 1995/01 - 1995/03 University of Cambridge, Research Centre for English and Applied Linguistics, M Phil in English and Applied Linguistics, Tutor
- 1993/04 - 1995/01 英国国際教育研究所(在ロンドン)日本語教師養成課程非常勤講師
- 1994/01 - 1994/03 "University of Cambridge, Research Centre for English and Applied Linguistics, M Phil in English and Applied Linguistics, Tutor"
- 1994/01 - 1994/03 University of Cambridge, Research Centre for English and Applied Linguistics, M Phil in English and Applied Linguistics, Tutor
- 1987/04 - 1992/03 三重県立名張西高等学校外国語科(英語)教諭
- 1984/04 - 1987/03 三重県立南勢高等学校外国語科(英語)教諭