Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5623002 | Material for contact lens and contact lens prepared therefrom | Masashi Nomura | 1997-04-22 |
| 5374663 | Process for producing cyanopsia-correctable intraocular lens | Masanori Daicho, Makoto Tsuchiya | 1994-12-20 |
| 5302678 | Contact lens | Masashi Nomura, Hideyuki Futamura, Makoto Tsuchiya | 1994-04-12 |
| 5264465 | Contact lens material and contact lens | Hideyuki Futamura, Masashi Nomura | 1993-11-23 |
| 5194542 | Contact lens | Hidetoshi Iwamoto, Makoto Tsuchiya | 1993-03-16 |
| 5073616 | High water content soft contact lens | Hideyuki Futamura, Makoto Tsuchiya | 1991-12-17 |
| 5023305 | Oxygen-permeable hard contact lens material with excellent impact resistance | Shigeharu Onozuka, Makoto Tsuchiya | 1991-06-11 |
| 4650843 | Soft contact lens | Eiichi Masuhara, Yoshinori Kadoma, Niro Tarumi, Makoto Tsuchiya | 1987-03-17 |