Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9445942 | Holding device for contact lens for vitreous surgery, holding device set, and contact lens for vitreous surgery, and lens set | — | 2016-09-20 |
| 8007105 | Lens for intraocular observation and contact lens for vitreous surgery | Kazuaki Kadonosono | 2011-08-30 |
| 5302678 | Contact lens | Masashi Nomura, Yuuichi Yokoyama, Makoto Tsuchiya | 1994-04-12 |
| 5264465 | Contact lens material and contact lens | Masashi Nomura, Yuuichi Yokoyama | 1993-11-23 |
| 5073616 | High water content soft contact lens | Yuuichi Yokoyama, Makoto Tsuchiya | 1991-12-17 |