Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5350790 | Polycarbonate resin composition for optical use | Hironori Hayashida, Yoshiaki Ohtani | 1994-09-27 |
| 5254614 | Polycarbonate resin composition for optical use | Hironori Hayashida, Yoshiaki Ohtani | 1993-10-19 |