Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8597797 | Chromium nitride ion-plating coating and its production method, as well as piston ring used for internal combustion engine | Takuma Sekiya, Yuji Shima, Shigeo Inoue | 2013-12-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8597797 | Chromium nitride ion-plating coating and its production method, as well as piston ring used for internal combustion engine | Takuma Sekiya, Yuji Shima, Shigeo Inoue | 2013-12-03 |