Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5710200 | Natural rubber treated with viscosity stabilizers and production thereof | Hirotoshi Toratani, Eiji Nakamura, Yasushi Hirata | 1998-01-20 |
| 4462448 | Pneumatic tires | Yasuyoshi Kawaguchi, Eiji Mineki | 1984-07-31 |