- 2017/04 - 現在 北海道大学 理学研究院 地球惑星科学部門 准教授
- 2012/10 - 2017/03 Department of Natural History Sciences, Hokkaido University Assistant Professor
- 2011/04 - 2012/09 Hokkaido University of Education Lecturer
- 2011/02 - 2011/03 Ruhr Universitaet Bochum, Germany Visiting Researcher
- 2010/04 - 2011/03 Nihon University Lecturer (non-full time)
- 2009/04 - 2011/03 Department of Geology and Paleontology, National Museum of Nature and Science, Tokyo JSPS Research Fellow
- 2008/04 - 2010/09 Department of Mathematics and Science, Kokushikan University Lecturer (non-full time)
- 2010/01 - 2010/06 Ruhr-Universitaet Bochum, Germany Visiting Researcher
- 2008/04 - 2009/03 Department of Earth and Planetary Science, The University of Tokyo Research Fellow
- 2006/04 - 2008/03 Department of Earth and Planetary Science, The University of Tokyo JSPS Research Fellow (DC2)
- 2005/04 - 2006/03 Department of Earth and Planetary Science, The University of Tokyo Research Assistant: The 21st Century Earth Science COE Program
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