- 2023/04 - 現在 Yamagata University Institute of Arts and Sciences Dean
- 2020/04 - 現在 Yamagata University Institute of Arts and Sciences Others
- 2012/04 - 現在 Yamagata University Faculty of Education, Art and Science Department of Education, Art and Science Professor
- 2009/10 - 現在 Yamagata University Faculty of Education, Art and Science Professor
- 1990/04 - 現在 Hokkaido University of Education Part-time Lecturer
- 2020/04 - 2023/03 Yamagata University Institute of Arts and Sciences
- 2019/04 - 2021/03 Yamagata University COC Plus Head
- 2019/04 - 2020/03 Yamagata University Faculty of Education, Art and Science
- 2019/04 - 2020/03 Yamagata University Faculty of Education, Art and Science Others
- 2019/04 - 2020/03 Yamagata University Faculty of Education, Art and Science Others
- 2016/04 - 2020/03 Yamagata University Faculty of Education, Art and Science Deputy Dean
- 2016/04 - 2020/03 Yamagata University Kojirakawa Campus Others
- 2013/04 - 2016/03 Yamagata University Others
- 2010/04 - 2013/03 Yamagata University Director's Staff
- 2009/10/01 - 2012/03/31 Yamagata University Faculty of Education, Art and Science Department of Education Associate Professor
- 2009/10/01 - 2012/03/31 Yamagata University Faculty of Education, Art and Science Department of Education Professor
- 2009/10 - 2012/03 Yamagata University Faculty of Education, Art and Science Department of Education Associate Professor
- 2009/10 - 2012/03 Yamagata University Abolition organization Department of Education Associate Professor
- 2006/04/01 - 2009/10/01 Yamagata University Faculty of Education, Art and Science
- 2007/04/01 - 2009/09/30 Yamagata University Faculty of Education, Art and Science Department of Art and Culture Associate Professor
- 2007/04 - 2009/09 Yamagata University Faculty of Education, Art and Science Department of Art and Culture Associate Professor
- 2007/04 - 2009/09 Yamagata University Abolition organization Department of Art and Culture Associate Professor
- 2005/04/01 - 2007/03/31 Yamagata University Faculty of Education, Art and Science Department of Art and Culture Associate Professor (as old post name)
- 2005/07 - 2007/03 国立教育センター 教育課程実施状況分析委員
- 2005/04 - 2007/03 Yamagata University Faculty of Education, Art and Science Department of Art and Culture Associate Professor (as old post name)
- 2005/04 - 2007/03 Yamagata University Abolition organization Department of Art and Culture Associate Professor (as old post name)
- 1994/04/01 - 2006/03/31 国立函館工業高等専門学校 一般科目 人文系 助教授
- 1994/04 - 2006/03 国立函館工業高等専門学校 助教授
- 2004/07 - 2005/07 国立教育センター 教育課程実施状況調査問題作成委員
- 1988/10/01 - 1994/03/31 国立函館工業高等専門学校 一般科目 文系 国語科講師
- 1988/10 - 1994/03 国立函館工業高等専門学校 講師
- 1987/04 - 1988/09 札幌市立札幌新川高等学校 教諭