Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12275836 | Sulfanyl sulfonic acid compound, viscoelastic modifier, rubber composition, and vulcanized rubber production method | Takeshi Hara | 2025-04-15 |
| 11760864 | Trisulfide compound | Takeshi Hara | 2023-09-19 |
| 11692088 | Rubber composition | Kazumasa Matsuo, Tatsuhiko Adachi, Toshihiro NOBUOKA, Takeshi Hara | 2023-07-04 |