Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845193 | Process for producing polycarbonate resin molding material having low particle content with vented extruder | Toshikazu Umemura, Kenji Maeda, Toshiaki Izumida, Kou Tanabe | 1989-07-04 |
| 4830911 | Recording sheet for ink jet printers | Takashi Omori | 1989-05-16 |