Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882403 | Non-hydrous soft contact lens and process for producing the same | Tetsuo Itoh, Kazuhiko Takahashi, Taro Suminoe, Takao Shimizu | 1989-11-21 |
| 4737556 | Non-hydrous soft contact lens and process for producing the same | Tetsuo Itoh, Kazuhiko Takahashi, Taro Suminoe, Takao Shimizu | 1988-04-12 |
| 4558431 | Memory system for storing analog information | — | 1985-12-10 |