Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6858298 | Optical polycarbonate resin molding material | Fumi Izumi | 2005-02-22 |
| 6833427 | Polycarbonate resin molding material for optical use | Fumi Izumi | 2004-12-21 |
| 6245405 | Optical molding material | — | 2001-06-12 |