Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5936703 | Alkoxysilane compound, surface processing solution and contact lens | Yasumi Koinuma | 1999-08-10 |
| 5883152 | Contact lens | Keizo Anan, Yoshishige Murata, Naoyuki Amaya | 1999-03-16 |