Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374663 | Process for producing cyanopsia-correctable intraocular lens | Masanori Daicho, Yuuichi Yokoyama | 1994-12-20 |
| 5302678 | Contact lens | Masashi Nomura, Yuuichi Yokoyama, Hideyuki Futamura | 1994-04-12 |