- 2019/05/01 - 現在 Tokyo Medical and Dental University Medical Hospital Central Clinical Facilities Hyperbaric Medical Center Associate Professor
- 2014/10/01 - 現在 Tokyo Medical and Dental University Sports Science Organization Clinical Center for Sports Medicine and Sports Dentistry Director
- 2013/07/16 - 現在 Tokyo Medical and Dental University Medical Hospital Central Clinical Facilities Hyperbaric Medical Center Associate Professor
- 2012/04/01 - 現在 Tokyo Medical and Dental University Medical Hospital Central Clinical Facilities Sports Medicine Center Director
- 2008/04/01 - 現在 Tokyo Medical and Dental University Medical Hospital Central Clinical Facilities Hyperbaric Medical Center Director
- 2018/04/01 - 2019/04/30 Tokyo Medical and Dental University Medical Hospital Central Clinical Facilities Hyperbaric Medical Center Associate Professor
- 2017/04/01 - 2018/03/31 Tokyo Medical and Dental University Medical Hospital Central Clinical Facilities Hyperbaric Medical Center Associate Professor
- 2012/04/01 - 2014/09/30 Tokyo Medical and Dental University Center for Sports Medicine and Sports Dentistry Director
- 2005/05/01 - 2013/07/15 Tokyo Medical and Dental University Medical Hospital Central Clinical Facilities Hyperbaric Medical Center Junior Associate Professor
- 2005/04/01 - 2005/04/30 Tokyo Medical and Dental University Medical Hospital Central Clinical Facilities Hyperbaric Medical Center Assistant Professor
- 2002/04/01 - 2005/03/31 Tokyo Medical and Dental University Medical Hospital Hospital Departments Department of Sensory, Orthopedic, and Dematologic Medicine Orthopaedic Surgery Assistant Professor
- 2000/07/16 - 2002/03/31 Tokyo Medical and Dental University Medical Hospital Hospital Departments Department of Sensory, Orthopedic, and Dematologic Medicine Orthopaedic Surgery Senior Resident
- 2000/04/01 - 2000/06/30 Florida Orthopaedic Institute, Tampa General Hospital visiting fellow
- 1999/07/01 - 2000/03/31 University of California, Los Angels (UCLA),Department of Orthopaedic Surgery visiting fellow
- 1996/01/01 - 1999/06/30 Tokyo Medical and Dental University Medical Hospital Hospital Departments Department of Sensory, Orthopedic, and Dematologic Medicine Orthopaedic Surgery Senior Resident
- 1995/01/01 - 1995/12/31 緑成会病院 整形外科 医員
- 1994/01/01 - 1994/12/31 国立横須賀病院(現横須賀うわまち病院) 整形外科 医員
- 1993/01/01 - 1993/12/31 湘南鎌倉(現総合)病院 整形外科 医員
- 1992/07/01 - 1992/12/31 Tokyo Medical and Dental University Medical Hospital Hospital Departments Department of Sensory, Orthopedic, and Dematologic Medicine Orthopaedic Surgery
- 1992/04/01 - 1992/06/30 癌研究会附属病院 整形外科 医員
- 1992/01/01 - 1992/03/31 大宮赤十字病院 整形外科 医員
- 1991/07/01 - 1991/12/31 Tokyo Medical and Dental University Medical Hospital Hospital Departments Department of Neurology, Neurosurgery,Psychiatry and Anesthesiology Anesthesiology
- 1991/06/10 - 1991/06/30 Tokyo Medical and Dental University Medical Hospital Hospital Departments Department of Sensory, Orthopedic, and Dematologic Medicine Orthopaedic Surgery Resident