Associate Professor
National Defense Medical College, Japan
2017- Department of Orthopedic Surgery, National Defense Medical College,
Associate professor
2005-2017 Dept. of Orthopedic Surgery, School of Medicine, Keio University; Assistant professor
2004-2005 Hospital for Special Surgery, New York; Research fellow
2002-2004 Sloan-Kettering Cancer Center, New York; Research fellow
1994-1995 Dept. of Orthopedic Surgery, School of Medicine, Keio University; Resident