Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805081 | Valve timing control device for internal combustion engine | Masahiko Watanabe, Kazuhiko Takayanagi | 2004-10-19 |
| 6672264 | Valve timing control device of internal combustion engine | Masahiko Watanabe | 2004-01-06 |
| 6672265 | Valve timing control system for internal combustion engine | Kazuhiko Takayanagi, Shigeaki Yamamuro, Naotaka Nakura | 2004-01-06 |