Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5097003 | Process for producing polyphenylene sulfide ketone polymers | Toshikazu Kato, Kensuke Ogawara | 1992-03-17 |
| 4981947 | Aromatic sulfideamide polymer and method for producing the same | Toshikazu Kato, Hiroshi Inoue, Kensuke Ogawara | 1991-01-01 |
| 4958003 | Aromatic sulfideamide polymer and method for producing the same | Toshikazu Kato, Hiroshi Inoue, Kensuke Ogawara | 1990-09-18 |
| 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 |