Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4779658 | Pneumatic safety tire | Misao Kawabata, Toru Tsuda, Hisao Ushikubo, Ichiro Takahashi | 1988-10-25 |
| 4296790 | Light tire bodies using thick cords | Yoshihiro Sakai, Ryosaku Tanaka, Toshio Kita, Munetoshi Shimotake, Hiroshi Ueda | 1981-10-27 |