Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5898061 | Continuous process for producing polyarylene sulfide | Yoshinari Koyama, Masao Oomori | 1999-04-27 |
| 5856433 | Apparatus for manufacturing polyarylene sulfide and process for manufacturing polyarlene sulfide using the apparatus | Yoshinari Koyama | 1999-01-05 |
| 5756654 | Process for manufacturing polyarylene sulfide | Kohji Namiki, Tetsuro Takeya | 1998-05-26 |