- 2008/04 - 現在 日本大学准教授(研究所)
- 1983/06 - 現在 Medical License to Practice in Japan
- 2008/04 - 日本大学准教授(研究所)
- 1998/12 - 2008/03 Assistant Professor, Department of Surgery, Nihon University School of Medicine,, Assistant Professor, Department of Surgery, Nihon University School of Medicine,
- 2001/03 - 2002/05 Hegau Klinikum Freiberg Universitaet
- 1989/12 - 1998/11 Staff Surgeon, Second Department of Surgery, , Nihon University School of Medicine,
- 1989/12 - 1998/11 Staff Surgeon, Second Department of Surgery, Nihon University School of Medicine,
- 1987/04 - 1988/08 Nihon University School of Medicine, Second Department , of Surgery, Tokyo, Japan. General and Cardiac Surgery
- 1987/04 - 1988/08 Nihon University School of Medicine, Second Department of Surgery, Tokyo, Japan. General and Cardiac Surgery
- 1983/04 - 1987/03 Nihon University School of Medicine, Doctor course