Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7540711 | Heat resisting steel, steam turbine rotor shaft using the steel, steam turbine, and steam turbine power plant | Masahiko Arai, Hirotsugu Kawanaka, Hideo Yoda | 2009-06-02 |