- Graduate school, The University of Tokyo (department of material science) Dr. Eng. 1988.
- The University of Tokyo, I.I.S. (Research associate, lecturer) 1988-1993
- RIKEN (Research scientist, senior research scientist, Principal technical scientist) 1993-2008
- Professor, Shibaura Institute of Technology (2008- )
Material science (Composite material), Net shape manufacturing (Polishing, Deburring, Thermal spraying, High speed milling, Laser processing, Powder metallurgy, Die and mold technology, Application of Additive Manufacturing, etc)
Mechanical machining, Material engineering, Additive manufacturing, Die and Mold technology