Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693738 | Composition for urethane-base plastic lens, urethane-base plastic lens obtained from the composition, and process for the production of the plastic lens | Koju Okazaki, Chitoshi Shimakawa, Yoshinobu Kanemura, Teruyuki Nagata, Seiichi Kobayashi +3 more | 1997-12-02 |
| 5666589 | Electrophotographic apparatus and image forming method using a photosensitive member with exposure characteristics responsive to field intensity | Kazuo Yoshinaga, Yukio Nagase, Hajime Miyazaki, Teigo Sakakibara, Yuichi Hashimoto +2 more | 1997-09-09 |
| 5631687 | Laser light radiation device providing reduced laser light spot size | — | 1997-05-20 |