Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5129137 | Method of mounting a spring seat on a hydraulic damping device | Tetsuro Isobe, Makoto Amano, Masashiro Kushida | 1992-07-14 |
| 4934491 | Shock absorber with improved structure of thrusting piston assembly | Fumiyuki Yamaoka | 1990-06-19 |