Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4766189 | Compositions for making improved gas permeable contact lenses | Hidehiko Ono | 1988-08-23 |
| 4693572 | Monocentric bifocal corneal contact lens | Shiro Sato | 1987-09-15 |
| 4302081 | Fused bifocal contact lens | — | 1981-11-24 |