1988–1989	Internship, Chiba University Hospital
1992–1998	Staff, Department of Radiology, University of Yamanashi
1998–1999	Research Fellow, Department of Radiology, University of Pittsburgh Medical Center
1999–2004	Assistant Professor, Department of Radiology, University of Yamanashi
2004–2006	Visiting Associate Professor, Department of Radiology, Brigham & Women's Hospital, Harvard Medical School
2006–Present	Associate Professor, Department of Radiology, University of Yamanashi