Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5883152 | Contact lens | Yoshishige Murata, Naoyuki Amaya, Tuyoshi Miyazaki | 1999-03-16 |
| 4948854 | Transparent optical article and process for preparing same | Naoyuki Amaya, Yoshishige Murata, Takao Mogami, Yoshio Sano, Haruhiro Ikebe +1 more | 1990-08-14 |
| 4933406 | Contact lens article made of silicon- and fluorine-containing resin | Naoyuki Amaya, Yoshishige Murata, Takayuki Otsu, Hiroshi Kawashima, Satoshi Kubota +1 more | 1990-06-12 |