Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6613128 | Twin screw extruder, method of making aromatic polycarbonate using a twin screw extruder, and method of removing volatiles from an aromatic polycarbonate melt | Masasi Simonaru, Toru Sawaki, Katsushi Sasaki, Eiji Ito | 2003-09-02 |
| 6562936 | Apparatus and method for producing resin | Masumi Hirata, Hiroaki Kaneko, Toru Sawaki, Wataru Funakoshi, Katsushi Sasaki +2 more | 2003-05-13 |
| 6252036 | Process for producing polycarbonate resin | Hiroaki Kaneko, Toru Sawaki, Katsushi Sasaki | 2001-06-26 |