Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4587828 | Rough forging mold and finish forging mold | Toshio Oota, Yuji Asaka, Mitsuki Nakamura | 1986-05-13 |
| 4578975 | Method of forging crank shaft | Toshio Oota, Yuji Asaka, Mitsuki Nakamura | 1986-04-01 |