Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4533711 | Polybutadiene rubber compositions having improved green strength | Yasumasa Takeuchi, Mitsuhiko Sakakibara, Masaki Ogawa, Yasushi Hirata, Shigeru Tomihira | 1985-08-06 |
| 4468496 | Polybutadiene rubber compositions | Yasumasa Takeuchi, Mitsuhiko Sakakibara, Masaki Ogawa, Yasushi Hirata, Shigeru Tomihira | 1984-08-28 |
| 4433107 | Polyisoprene rubber compositions | Yasumasa Takeuchi, Mitsuhiko Sakakibara, Masaki Ogawa, Yasushi Hirata, Shigeru Tomihira | 1984-02-21 |