Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6694935 | Valve mechanism of internal combustion engine | Makoto Nakamura | 2004-02-24 |
| 6684833 | Variable valve mechanism of internal combustion engine | Katsuya Moteki, Shinichi Takemura | 2004-02-03 |