Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888388 | Polycarbonate resin composition | Hideyuki Shigemitsu, Naoki Yamamoto, Akira Yanagase | 1989-12-19 |
| 4879329 | Impact resistant flame-retardant resin composition | Mitsuaki Noda | 1989-11-07 |
| 4877831 | Polycarbonate resin composition | Hideyuki Shigemitsu, Naoki Yamamoto, Akira Yanagase | 1989-10-31 |