Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843113 | Aromatic polysulfone resin composition having excellent plating characteristics | Yoshiharu Tatsukami, Masakazu Inoue, Kazuo Hieda | 1989-06-27 |
| 4804697 | Thermoplastic resin composition having an improved chemical resistance | Teruo Saito, Yasurou Suzuki | 1989-02-14 |