Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5789463 | Ocular lens material and process for producing the same | Kiyotaka Odagiri | 1998-08-04 |
| 4788227 | Contact lens formed from a hydrogel fundamental material | Yasukichi Yanagihara | 1988-11-29 |
| 4699946 | Hydrogel fundamental material | Yasukichi Yanagihara | 1987-10-13 |