Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701858 | Variable valve timing mechanism of engine | — | 1997-12-30 |
| 5628286 | Valve timing control apparatus for engine | Senji Kato, Nobuhisa Ohkawa, Shigeru Sone, Tadahisa Naganawa, Yoshiya Yamashita +2 more | 1997-05-13 |