- 2018/04 - 現在 Teikyo Heisei University Faculty of Modern Life
- 2014/06 - 現在 Rikkyo University
- 2012/04 - 2018/03 Faculty of Modern Life, Teikyo Heisei University Lecturer
- 2009/07 - 2012/03 MoEA, Bhutan Gracier research division, Department of Geology and Mines, JICA expert
- 2009/04 - 2012/03 Graduate School of Environmental Studies, Nagoya University Project Assistant Professor
- 2007/04 - 2009/03 Cultural Properties Laboratory, Meiji University Non-regular Staff
- 2005/04 - 2007/03 Institute of Natural Sciences, Nihon University Researcher
- 2002/04 - 2005/03 Department of Geography, Graduate School of Science, Tokyo Metropolitan University Ph.D. Program
- 2000/04 - 2002/03 Department of Geography, Graduate School of Science, Tokyo Metropolitan University Master's Program
- 1996/05 - 2000/03 Department of Geosystem Sciences, College of Humanities and Sciences, Nihon University Research Assistant
- 1992/04 - 1996/05 中央開発株式会社 東北支店 技師
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