Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882403 | Non-hydrous soft contact lens and process for producing the same | Tetsuo Itoh, Noboru Satoh, Kazuhiko Takahashi, Takao Shimizu | 1989-11-21 |
| 4737556 | Non-hydrous soft contact lens and process for producing the same | Tetsuo Itoh, Noboru Satoh, Kazuhiko Takahashi, Takao Shimizu | 1988-04-12 |
| 4550001 | Process for producing shaped articles having improved surfaces | Tetsuo Ito, Yasuhiro Kiyomatsu, Takao Shimizu | 1985-10-29 |
| 4494954 | Process for producing colored contact lens | Tetsuo Ito, Yasuhiro Kiyomatsu, Takao Shimizu | 1985-01-22 |
| 4399266 | Laddery lower alkylpolysilsesquioxane having heat-resistant thin film-formability and process for preparing same | Yoshio Matsumura, Ikuo Nozue, Osahiko Tomomitsu, Takashi Ukachi | 1983-08-16 |
| 4211682 | Dental hydraulic investment | Tetsuo Ito, Eiichi Masuhara | 1980-07-08 |