Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9885417 | Piston ring | Kouhei Sugimoto, Yoshinari Watanabe, Toshikatsu Hayashi | 2018-02-06 |
| 7291384 | Piston ring and thermal spray coating used therein, and method for manufacturing thereof | Katsumi Takiguchi, Yukio Hosotsubo | 2007-11-06 |
| 7279227 | Spraying piston ring | — | 2007-10-09 |