Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5146772 | Vehicle door lock device | Yoshikazu Hamada | 1992-09-15 |
| 5072975 | Switch box of lock device for vehicle | Yoshikazu Hamada, Katsuya Ashizawa | 1991-12-17 |
| 5064229 | Lock device for vehicle | Yoshikazu Hamada | 1991-11-12 |
| 5046341 | Car locking device | Kazuo Ogawa, Naoyoshi Morita | 1991-09-10 |