Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10850564 | Winter tire | — | 2020-12-01 |
| 10494515 | Process for preparing vulcanized rubber composition, vulcanized rubber composition and studless tire using same | Ryoji Kojima | 2019-12-03 |
| 10189974 | Tire | Ryoji Kojima | 2019-01-29 |
| 9321017 | Gas-separation membrane | Yasuharu Yamada, Tomoyuki Suzuki, Masako Miki | 2016-04-26 |