Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6994062 | Variable valve timing control device | Yoshiyuki Kawai, Masaki Kobayashi, Hideyuki Suganuma | 2006-02-07 |
| 6701878 | Variable valve timing device | Yoshiyuki Kawai | 2004-03-09 |