Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849700 | Device for detecting residual capacity of battery | Shizuo Morioka | 1989-07-18 |
| 4826911 | Rubber compositions for automobile tire treads | Yoshihiko Suzuki, Masashi Kida, Asahiro Ahagon, Youichi Yamaguchi | 1989-05-02 |