- 2022/04 - 現在 Nagasaki University Institute of Tropical Medicine Designated Professor
- 2019/04 - 2022/03 Nagasaki University Institute of Tropical Medicine
- 2018/10 - 2022/03 長崎大学 大学院熱帯医学・グローバルヘルス研究科 教授
- 2017/03 - 2022/03 長崎大学 生命医科学域(医学系)教授
- 1997/10 - 2022/03 Nagasaki University School of Medicine
- 2014/09 - 2019/03 Nagasaki University University Library
- 2002/04 - 2018/09 Nagasaki University Graduate School of Biomedical Sciences
- 2008/04 - 2010/03 Nagasaki University
- 2008/04 - 2010/03 長崎大学 教育研究評議会 評議員
- 2008/04 - 2010/03 Nagasaki University Center for Frontier Life Sciences
- 2008 - 2010 Others,Center for Frontier Life Science,Nagasaki University
- 2008 - 2009 Others,School of Medicine,Nagasaki University
- 2008 - Others,Center for Frontier Life Science,Nagasaki University
- 1997 - 2002 Professor,School of Medicine,Nagasaki University
- 2002 - Professor,Infection Research,Infection Research,Graduate School of Biomedical Sciences,Nagasaki University
- 1995/03 - 1997/09 Nagasaki University School of Medicine
- 1995 - 1997 Lecturer,School of Medicine,Nagasaki University
- 1989 - 1995 ペンシルバニア大学医学部病理学講座免疫部門 助教授
- 1989 - 1995 Associate Professor,University of Pennsylvania, Department of Pathology and Laboratory Medicine
- 1988 - 1989 ペンシルバニア大学医学部病理学講座免疫部門 助手
- 1988 - 1989 Research Associate,University of Pennsylvania, Department of Pathology and Laboratory Medicine
- 1985 - 1988 ペンシルバニア大学医学部病理学講座免疫部門 研究員
- 1985 - 1988 Researcher,University of Pennsylvania, Department of Pathology and Laboratory Medicine
- 1985 - Shinshu University
- 1985 - Researcher,Shinshu university