- 2024/04 - 現在 Hiroshima University
- 2023/10 - 現在 日本学術会議・連携会員
- 2022/06 - 現在 大阪大学環境安全研究管理センター特任教授
- 2007/04 - 2022/03 環境安全研究管理センター長
- 2003/04 - 2022/03 Osaka University Graduate School of Engineering Division of Applied Chemistry
- 2003/04 - 2004/03 Institute for Molecular Science, Visiting Professor
- 2002/04 - 2003/03 Institute for Molecular Science, Visiting Associate Professor
- 1998/04 - 2003/03 Osaka University, Faculty of Engineering, Associate Professor
- 2001/04 - 2002/03 Hokkaido University Catalysis Research Center
- 2001/04 - 2002/03 Hokkaido University, Catalysis Research Center, Visiting Associate Professor
- 1992/08 - 1998/03 Osaka University, Faculty of Engineering, Associate Professor
- 1989/09 - 1992/07 Osaka University, Faculty of Engineering, Research Associate
- 1984 - 1992 Osaka University, Research Associate
- 1988/04 - 1989/08 アメリカイリノイ大学 博士研究員
- 1984/04 - 1989/08 Osaka University, The Institute of Scientific and Industrial Research, Research Associate
- 1988 - 1989 The University of Illinois, Postdoctoral
- Associate Professor
- Visiting Associate professor
- Research Associate