Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4748199 | Low fuel consumption tire with all weather performances | Eiji Takiguchi, Kazuaki Yuto | 1988-05-31 |
| 4640952 | Pneumatic tire having all-weather running performances | Eiji Takiguchi, Kazuaki Yuto | 1987-02-03 |
| 4398582 | Pneumatic tire | Kazuaki Yuto, Nobumasa Ikeda, Itsuo Miyake | 1983-08-16 |