Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4749016 | Radial tire having an improving durability | Koichi Kojima, Munetoshi Shimotake | 1988-06-07 |
| 4609024 | Pneumatic radial tire cord for belt | Joji Yatsunami | 1986-09-02 |
| 4518023 | Pneumatic tire | Yutaka Yamaguchi, Nobuyuki Koizumi, Masami Hirano, Koichi Kojima | 1985-05-21 |
| 4436131 | Pneumatic radial tires | Yutaka Yamaguchi, Nobuyuki Koizumi, Koichi Kojima, Nobumasa Ikeda | 1984-03-13 |
| 4274462 | Pneumatic tire having an improved resistance against heat build-up employing syndiotactic-1,2-polybutadiene fibers in tread base rubber | Masaki Ogawa, Shinji Yamamoto | 1981-06-23 |
| 4257468 | Pneumatic tire having an improved chipping resistant property employing syndiotactic-1,2-polybutadiene in tread rubber | Masaki Ogawa, Shinji Yamamoto | 1981-03-24 |
| 4255296 | Polybutadiene rubber composition | Masaki Ogawa | 1981-03-10 |
| 4215021 | Coating rubber composition for tire cords | Masaki Ogawa, Shinji Yamamoto | 1980-07-29 |