Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886850 | Rubber compositions and pneumatic tires using the same | Yasuro Shiomura, Toshiki Takizawa | 1989-12-12 |
| 4865593 | Splittable cannula | Nobuyoshi Fujiwara | 1989-09-12 |
| 4839703 | High speed and power transistor | Keiichi Ohata, Hikaru Hida | 1989-06-13 |
| 4810746 | Rubber composition for use in vibration insulating material | Fumio Tsutsumi, Makoto Kondo, Mitsuhiko Sakakibara, Masaru Oda, Akira Tsuchikura +1 more | 1989-03-07 |
| 4801641 | Rubber compositions and pneumatic tires using the same | Yasuro Shiomura, Toshiki Takizawa | 1989-01-31 |