Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6497206 | Engine with two cylinder banks each with a valve operating device enabling variation of valve timing and valve lift characteristic | Yoshihiko Yamada, Makoto Nakamura | 2002-12-24 |
| 6408806 | Variable valve operating system of internal combustion engine enabling variation of working angle and phase | Takanobu Sugiyama | 2002-06-25 |
| 6397800 | Valve control device of internal combustion engine | Takanobu Sugiyama, Shinichi Takemura | 2002-06-04 |