Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11867294 | Sliding member | Tomoyuki Sato, Tetsuya Nango | 2024-01-09 |
| 11867295 | Sliding member | Tomoyuki Sato, Kiyoyuki Kawai, Haojie Fu | 2024-01-09 |
| 11242929 | Piston ring | Tomoyuki Sato, Takatsugu Iwashita | 2022-02-08 |
| 9458933 | Combination oil ring | Noriaki Ayuzawa, Masahide Hama | 2016-10-04 |