Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6921784 | Polycarbonate-based molding material and optical disk substrates | Masaki Shiomi | 2005-07-26 |
| 6646098 | Polycarbonate resin molding material for optical use and optical disk substrate | — | 2003-11-11 |