Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5633060 | Optical disk substrate, optical disk and aromatic polycarbonate resin | Kuniyuki Hayashi, Tatsumi Horie | 1997-05-27 |
| 5599897 | Aromatic polycarbonate, a method for producing the same, and a plastic optical waveguide using the same | Masaki Nishiguchi | 1997-02-04 |