- 2020/04 - 現在 Nippon Medical School Graduate School Professor
- 2017/04 - 2020/03 Nippon Medical School Department of Orthopedic Surgery and Rheumatology Clinical professor
- 2013/04 - 2017/03 International University of Health and Welfare Department of Orthopedic Surgery Professor
- 2007/06 - 2013/03 Hokkaido University Graduate School of Medicine, Department of Joint Replacement and Tissue Engineering Professor
- 2007/04 - 2007/06 Hokkaido Univ. School of Medicine Department of Orthopaedic Surgery Associate Professor
- 2003 - 2007/03 Hokkaido University Graduate School of Medicine
- 2003 - 2007 Hokkaido Univ, Associate professor
- 2007 - - Hokkaido Univ, Professor
- 2003 - 2003 北海道大学医学部・歯学部付属病院、講師
- 2002 - 2003 Hokkaido University Graduate School of Medicine
- 2001 - 2003 Hokkaido Univ, Assistant professor
- 2003 - - Hokkaido Univ, Associate professor
- 2001 - 2002 Hokkaido University School of Medicine
- 1997 - 2000 カナダ、アルバータ州、カルガリー大学、博士研究員
- 1997 - 2000 University of Calgary, Research fellow
- 1992 - 1993 Hokkaido University, Assistant professor
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Japanese Society for Joint Disease
, 東日本整形災害外科学会
, American Academy of Orthopaedic Surgeons
, 日本臨床バイオメカニクス学会
, 日本整形外科学会
, JAPANESE ORTHOPAEDIC SOCIETY OF KNEE, ARTHROSCOPY AND SPORTS MEDICINE
, Japanese Society for Replacement Arthroplasty
, JAPAN COLLEGE OF RHEUMATOLOGY