Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7036823 | Side rail and combined oil control ring incorporated with the side rails for reduction of oil consumption | Katsumi Takiguchi | 2006-05-02 |
| 5323744 | Piston for internal combustion engines | Hideki Yoshida | 1994-06-28 |