Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886850 | Rubber compositions and pneumatic tires using the same | Masaki Ogawa, Toshiki Takizawa | 1989-12-12 |
| 4801641 | Rubber compositions and pneumatic tires using the same | Masaki Ogawa, Toshiki Takizawa | 1989-01-31 |