Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9138802 | Forging system for forging a valve | Yuji Okamura, Yosuke Makino, Hiroyuki Oda | 2015-09-22 |
| 9086239 | Automated heat treatment system for engine valve | Yuji Okamura, Yosuke Makino, Hiroyuki Oda | 2015-07-21 |