1988	MD, Cum laude, Faculty of Medicine, Kyushu University Resident,
1988–1989	Department of Surgery II, Kyushu University Hospital
1989–1990	Medical Staff in Surgery,
Hiroshima Red Cross Hospital & Atomic-bomb Survivors Hospital
1990–1993	Doctor Course,
Graduate School of Medicine, Kyushu University
1993	PhD, Doctor of Medical Science
1993–1994	Assistant Professor, Department of Virology, Faculty of Medicine, Kyushu University
1994–1996	Research Fellow, Cancer Center,
Massachusetts General Hospital and Harvard Medical School
1996–1999	Assistant Professor, Department of Surgery,
Medical Institute of Bioregulation, Kyushu University
1999–2004	Assistant Professor, Department of Surgery and Science,
	Graduate School of Medical Sciences, Kyushu University
2004–2005	Surgical Staff, Department of Gastroenterological Surgery, National Kyushu Cancer Center
2005–2006	Assistant Professor,
Department of Hepato-Biliary-Pancreatic Surgery, Tokyo Medical and Dental University
2006-date	Associate Professor,
Department of Hepato-Biliary-Pancreatic Surgery, Tokyo Medical and Dental University