Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868275 | Preparation of poly (arylene sulfide) from dihalo aromatic hydroxyl compound | Toshikazu Kato, Hiroshi Inoue, Noriaki Emura | 1989-09-19 |
| 4840986 | Process for producing a polyarylene sulfide | Hiroshi Inoue, Toshikazu Kato, Noriaki Emura | 1989-06-20 |