Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701857 | Cylinder valve operating system | — | 1997-12-30 |
| 5687681 | Phase changing mechanism for camshaft of internal combustion engine | — | 1997-11-18 |
| 5682847 | Valve actuating device for engine | — | 1997-11-04 |
| 5622145 | Cylinder valve operating apparatus | — | 1997-04-22 |
| 5592857 | Variable camshaft phaser | — | 1997-01-14 |
| 5592908 | Engine cylinder valve control system | Akira Hidaka | 1997-01-14 |