- 2014/04 - Kagawa University, Faculty of Medicine Department of Cardiovascular Physiology Professor
- 2006/08 - 2014/03 Kyushu University, Graduate School of Medicine Department of Molecular Cardiology Associate Professor
- 2000/04 - 2006/07 Kyushu University, Graduate School of Medicine Department of Molecular Cardiology Assistant professor, Lecturer
- 1999/04 - 2000/03 Kyushu University, Graduate School of Medicine Department of Molecular Cardiology Assistant professor, Lecturer
- 1996/11 - 1999/03 Kyushu University, Faculty of Medicine Department of Molecular Cardiology Assistant professor, Lecturer
- 1993/09 - 1996/11 University of Arizona, Tucson, AZ, USA Department of Physiology, Biochemistry, Animal Sciences; Muscle Biology Group Assistant Research Scientist
- 1990/10 - 1993/08 University of Arizona, Tucson, AZ, USA Department of Physiology, Biochemistry, Animal Sciences; Muscle Biology Group Research Associate
- 1987/06 - 1990/10 Kyushu University, Graduate School of Medicine Department of Molecular Cardiology Research fellow (thesis work)
- 1985/06 - 1987/05 Kyushu University Hosptical Department of Cardiovascular Medicine Resident