Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5594088 | Plastic lenses having a high-refractive index, process for the preparation thereof and casting polymerization process for preparing sulfur containing urethane resin lens and lens prepared thereby | Teruyuki Nagata, Koju Okazaki, Tohru Miura, Yoshinobu Kanemura, Katsuyoshi Sasagawa +1 more | 1997-01-14 |