Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4788227 | Contact lens formed from a hydrogel fundamental material | Takuo Kato | 1988-11-29 |
| 4699946 | Hydrogel fundamental material | Takuo Kato | 1987-10-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4788227 | Contact lens formed from a hydrogel fundamental material | Takuo Kato | 1988-11-29 |
| 4699946 | Hydrogel fundamental material | Takuo Kato | 1987-10-13 |