- 2016/05 - 現在 Tohoku University Others
- 2022/04 - 2024/03 Yamagata University Faculty of Science
- 2018/04 - 2022/03 Yamagata University Faculty of Science The Science Course Professor
- 2009/04 - 2022/03 Miyagi University of Education Part-time Lecturer
- 2006/04 - 2022/03 Yamagata Prefectural University of Health Science Part-time Lecturer
- 2012/10 - 2018/03 Yamagata University Faculty of Education, Art and Science Department of Education, Art and Science Professor
- 2011/04 - 2018/03 University of Tsukuba Others
- 2014/12 - 2016/11 日本学術振興会 科学研究費委員会 専門委員
- 2011/12 - 2013/11 日本学術振興会 科学研究費委員会 専門委員
- 2007/04 - 2012/09 Yamagata University Abolition organization Department of Information, Environmental and Food Sciences Associate Professor
- 2005/04 - 2007/03 Yamagata University Faculty of Education, Art and Science
- 2002/04 - 2005/03 Yamagata University
- 1997/04 - 2002/03 Yamagata University
- 1999/09 - 2000/06 University of California, Los Angeles
- 1998/04 - 2000/03 宇宙開発事業団 招聘研究員
- 1994/04 - 1997/03 日本学術振興会特別研究員(DC1) 日本学術振興会特別研究員
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