- 2021/04 - 現在 Tokyo University of Science Research Institute for Science and Technology, Division of Colloid and Interface Science Visiting Professor
- 2018/04 - 2021/03 Tokyo University of Science Organization for Research Advancement Research Institute for Science and Technology, Abe Laboratory Visiting Professor
- 2018/04 - 2019/03 Nagasaki International University Faculty of Pharmaceutical Science Research fellow
- 2013/04 - 2018/03 Nagasaki International University Graduate School of Pharmaceutical Sciences Full Professor
- 2007/04 - 2018/03 長崎国際大学 教授
- 1993 - 2007 Kyushu University
- 1993 - 2007 Kyushu University, Associate Professor
- 2004/08 - 2004/09 Université Louis-Pasteur (Université Strasbourg), Institut Charels Sadron (CNRS), Visiting Professor
- 1977 - 1993 Kyushu University
- 1977 - 1993 Kyushu University, Research Associate
- 1989/07 - 1989/09 Université du Québec à Trois-Rivières, Centre de recherche en photo- biophysique, Visiting Professor
- 1987/07 - 1987/09 Université du Québec à Trois-Rivières, Centre de recherche en photo- biophysique, Visiting Professor
- 1986/07 - 1986/10 Université du Québec à Trois-Rivières, Centre de recherche en photo- biophysique, Posdoc., Prof. Roger M. Leblanc
- 1984/10 - 1986/06 Universität Basel, Institut für Physikalische Chemie, Posdoc., Prof. Dr. Hans-Friedrich EICKE
- 1970 - 1972 Chiba University
- 1970 - 1972 Chiba University, Research Associate