Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5015670 | Polycarbonate resin composition | Toshiaki Takada, Tadami Kinugawa, Katsuhiro Yamaguchi, Hiroyuki Nakano | 1991-05-14 |
| 4845193 | Process for producing polycarbonate resin molding material having low particle content with vented extruder | Toshikazu Umemura, Kenji Maeda, Yutaka Kojima, Toshiaki Izumida | 1989-07-04 |