Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5397511 | Method of producing intraocular lens formed from polymide powder | Kenichi Ishihara, Kazuhiko Nakada, Haruyuki Hiratani | 1995-03-14 |
| 5269813 | Material for one-piece intraocular lenses | Kazuhiko Nakada | 1993-12-14 |