- 2008/04 - 現在 Yamagata University Professor
- 2007/04 - 2008/03 Yamagata University Graduate School of Science and Engineering Associate Professor
- 1999/08/01 - 2007/03/31 Yamagata University Faculty of Engineering Department of Chemistry and Chemical Engineering Associate Professor (as old post name)
- 1999/08 - 2007/03 Yamagata University Faculty of Engineering Department of Chemistry and Chemical Engineering Associate Professor (as old post name)
- 1999/08 - 2007/03 Yamagata University Abolition organization Department of Chemistry and Chemical Engineering Associate Professor (as old post name)
- 1995/05 - 1999/07 Nagoya Institute of Technology Associate Professor (as old post name)
- 1982/04 - 1995/04 通商産業省工業技術院北海道工業技術研究所 主任研究員
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