- 2002 - 2004 :日本原子力研究所関西研究所放射光科学研究センター
- 2002 - 2004 :Group Leader, Synchrotron Radiation Research Center,
- 2004 - -:茨城大学理学部数理科学科教授
- 2004 - -:Professor, Department of Mathematical Science,
- 1993 - 2002 :群馬大学工学部共通講座教授
- 1993 - 2002 :Professor, Faculty of Engineering, Gunma University
- 1992 - 1993 :群馬大学工学部共通講座助教授
- 1992 - 1993 :Associate Professor, Faculty of Engineering,
- 1991 - 1992 :大阪大学理学部物理学科講師
- 1991 - 1992 :Lecturer, Department of Physics, Faculty of Science,
- 1979 - 1991 :大阪大学理学部物理学科助手
- 1979 - 1991 :Assistant, Department of Physics, Faculty of Science,
- 1978 - 1979 :日本学術振興会奨励研究員
- 1978 - 1979 :Fellow of Japan Society for the Promotion of Science
- Ibaraki University
- Ibaraki University College of Science, Department of Science Course of Physics Professor,Domain Chairpersons of Mathematical Sciences,Faculty of Science,Department of Major in Mathematical Sciences,Master's Program of the Graduate School of Science and
- グループリーダー(物質構造シミュレーショングループ)
- Faculty of Science, Ibaraki University
- Kansai Research Establishment, Japan Atomic Energy Research Institute
- Gunma University
- Osaka University