Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4726262 | Automatic transmission with overdrive inhibitor | Yoichi Hayakawa, Kazuaki Watanabe, Yoshiharu Harada | 1988-02-23 |
| 4699249 | Lubrication system for power transmission chain | Yoichi Hayakawa, Yoshiharu Harada, Kagenori Fukumura | 1987-10-13 |
| 4663992 | Control system for a four-wheel drive transmission | Yoichi Hayakawa, Yutaka Taga, Shinya Nakamura | 1987-05-12 |