- 1994 - 1999 長崎大学熱帯医学研究所,講師
- 1994 - 1999 Institute of Tropical Medicine,
- 1999 - - 長崎大学熱帯医学研究所,助教授
- 1999 - Institute of Tropical Medicine,
- 1998 - School of Allied Medical Sciences,
- 1995 - - 長崎大学医学部,非常勤講師
- 1995 - Nagasaki University,
- 1977 - 1994 長崎大学熱帯医学研究所,助手
- 1977 - 1994 Institute of Tropical Medicine,
- 1982 - - 長崎大学歯学部,非常勤講師
- 1982 - Nagasaki University,
- Nagasaki University,
- School of Medicine,
- School of Dentistry,
- Nagasaki University, Associate Professor
- Nagasaki University, Assistant Professor
- Nagasaki University, Research Associate