Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873638 | Traction control system for controlling slip of a driving wheel of a vehicle | Shuji Shiraishi | 1989-10-10 |
| 4860847 | Vehicle traction control device | Shuji Shiraishi, Masakazu Sakaguchi | 1989-08-29 |