Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4517348 | Rubbery polymer composition | Kohki Takahashi, Masao Koga, Kenichiro Nishiwaki | 1985-05-14 |
| 4303560 | Rubbery polymer composition | Kohki Takahashi, Masao Koga, Kenichiro Nishiwaki | 1981-12-01 |