Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889893 | Polyphenylene sulfide resin composition and a process for producing it | Hirokazu Kobayashi | 1989-12-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889893 | Polyphenylene sulfide resin composition and a process for producing it | Hirokazu Kobayashi | 1989-12-26 |