Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5475786 | Aromatic polycarbonate copolymer, a process for producing the same, and a plastic optical waveguide using the same | Toshimasa Tokuda | 1995-12-12 |
| 5230840 | Method of manufacturing thermoplastic/resin molded optical member | Yoshiaki Ohishi, Kazuo Chiba, Michio Yamaguchi | 1993-07-27 |