- 2023/04 - 現在 kokushikan University
- 2023/04 - 現在 kokushikan University Professor
- 2021/04 - 2023/03 National Defense Medical College Library Director of Library
- 2021/04 - 2023/03 National Defense Medical College Hospital, Department of Emergency Medicine Director of Emergency and Critical Care Center, Hospital
- 2021/04 - 2023/03 National Defense Medical College Library Director
- 2021/04 - 2023/03 National Defense Medical College Hospital, Department of Emergency Medicine Manager(Dean)
- 2006/04 - 2023/03 National Defense Medical College Reaseach Institute, Division of Traumatology Professor
- 2010/08 - 2021/03 National Defense Medical College Hospital, Department of Emergency Medicine Professor
- 1997/04 - 2006/03 National Defense Medical College Hospital, Department of Emergency Medicine Lecturer
- 1996/12 - 1997/03 National Defense Medical College Hospital, Department of Emergency Medicine Assistant Professor
- 1983/04 - 1996/11 Air Self-Defense Force Self-Defense Force medical officer
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Japanese Association of Acute Medicine
, Japanese Association of Acute Medicine