Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873276 | Polyphenylene ether/polyamide blends having mproved physical properties | Susumi Fujii, Masataka Morioka, Akihiro Saito, Roelof van der Meer | 1989-10-10 |
| 4840491 | Rubber kneading method | Yoshiaki Hagiwara, Takeyoshi Takahashi | 1989-06-20 |