- 2022/05 - Joint research Center for Human Retrovirus Infection, Kumamoto University
- 2016 - 2022 Kumamoto University Hospital Departments of Hematology, collagen diseases, infectious diseases. Assistant Professor
- 2013 - 2016 Assistant Professor, Kumamoto University, Departments of Hematology, collagen diseases, infectious diseases.
- 2008 - 2013 Research Associate, Kumamoto University, Departments of Hematology, collagen diseases, infectious diseases.
- 2011 - 2011 Guest Researcher, Experimental Retrovirology Section, National Cancer Institute, NIH, Bethesda, MD, United States.
- 2009 - 2010 Guest Researcher, Experimental Retrovirology Section, National Cancer Institute, NIH, Bethesda, MD, United States.
- 2004 - 2008 Doctoral Course, Kumamoto University, Garduate School of Medical Science.
- 2003 - 2004 Gastroenterology, Kumamoto National Hospital, Kumamoto, Japan.
- 2001 - 2003 Internal Medicine, Amakusa Medical Center, Kumamoto, Japan.
- 2000 - 2001 Hematology and Infectious diseases, Kumamoto University Hospital, Kumamoto, Japan.
- 2000 - 2000 Internal Medicine, Kumamoto Red-Cross Hospital, Kumamoto, Japan.
- 1999 - 2000 Hematology and Infectious diseases, Kumamoto University Hospital, Kumamoto, Japan.