Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4931500 | Hydrolyzed ethylene-vinyl acetate copolymer | Shinji Okamoto, Masaaki Minakawa, Masasi Nakagire | 1990-06-05 |
| 4857589 | Hydrolyzed ethylene-vinyl acetate copolymer | Shinji Okamoto, Masaaki Minakawa, Masasi Nakagiri | 1989-08-15 |