Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7257981 | Closed forging method, forging production system using the method, forging die used in the method and system, and preform or yoke produced by the method and system | Takafumi Nakahara | 2007-08-21 |