2000- Department of Surgery, the Tokyo Teishin Hospital, Tokyo, Japan
2004- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, the University of Tokyo Hospital, Tokyo, Japan
2008- Department of Surgery, Central Hospital of Social Health Insurance, Tokyo, Japan
2009- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, the University of Tokyo Hospital
2011 IHPBA fellow at the Institut Mutualiste Montsouris (Paris, Prof. Brice Gayet)
2014- Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
2018.4- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, the University of Tokyo Hospital
2022.4- Department of Hepatobiliary-Pancreatic Surgery, Graduate School of Medicine, Osaka Metropolitan University
President of the Asian-Pacific Chapter of International Society for Fluorescence Guided Surgery (ISFGS)
Past president of ISFGS
Fellow of the American College of Surgeons (ACS)
International fellow of SAGES