Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644256 | Valve operating system for engine | Toshiyuki Sato | 2003-11-11 |
| 6615781 | Overhead camshaft type valve train for internal combustion engine | Shigekazu Tanaka, Toshiyuki Sato | 2003-09-09 |