Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4369671 | Torque transfer mechanism with hydraulic control system for a four wheel drive vehicle | Yoichi Hayakawa | 1983-01-25 |
| 4367661 | Transmission for four-wheel drive vehicles | Shuzo Moroto, Yoichi Hayakawa | 1983-01-11 |