Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5597054 | Hydraulic damper | Osamu Nagai, Kaoru Yamamoto | 1997-01-28 |
| 5480011 | Hydraulic damper | Osamu Nagai, Kaoru Yamamoto | 1996-01-02 |
| 4709934 | Vehicle leveling system | Hideo Suzuki, Yasuyuki Hayashi, Mitsuru Aiba | 1987-12-01 |