2015/04 - Today Teikyo UniversitySchool of MedicineProfessor
2009/04 - 2015/03 Teikyo UniversitySchool of MedicineAssociate Professor
2006/07 - 2009/03 Teikyo UniversitySchool of MedicineLecturer
2004/03 - 2006/06 Teikyo University Ichihara HospitalSchool of MedicineLecturer
2001/03 - 2004/02 Northwestern UniversityDepartment of EndocrinologyPostdoctoral Fellow
2000/03 - 2001/02 The University of TokyoFaculty of Medicine School of MedicineAssistant
1999/04 - 2000/02 Ministry of JusticeMedical Officer
1994/12 - 1995/03 The University of TokyoFaculty of Medicine University HospitalAssistant
1993/12 - 1994/11 The Cancer Institute Hospital of JFCRDepartment of Internal MedicineMedical Staff
1992/12 - 1993/11 The University of TokyoFaculty of Medicine University HospitalMedical Staff
1991/12 - 1992/11 Ibaraki Prefectural Central HospitalDepartment of Internal MedicineMedical Staff
1991/06 - 1991/11 Showa General HospitalDepartment of Emergency MedicineResident
1990/06 - 1991/05 The University of TokyoFaculty of Medicine University HospitalResident