Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10352269 | Method of producing piston for engine | Kouichi Nakano, Yoshiyuki Koga | 2019-07-16 |
| 10260451 | Heat insulation structure of combustion chamber of engine | Osamu Aoki, Kazuo Ichikawa | 2019-04-16 |