Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6531527 | Viscosity-stabilizer-containing natural rubber latex and natural rubber and a production process thereof | Ken Kijima, Takatsugu Hashimoto | 2003-03-11 |
| 5710200 | Natural rubber treated with viscosity stabilizers and production thereof | Eiji Nakamura, Hideki Aoyama, Yasushi Hirata | 1998-01-20 |
| 5693695 | Natural rubber containing viscosity stabilizer and method for manufacturing the same | Yasushi Hirata | 1997-12-02 |