Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670605 | Copolycarbonate, a copolycarbonate composition, and a method for their manufacture | Takeshi Sakashita, Takashi Nagai, Tetsuji Kodaira | 1997-09-23 |
| 5646233 | Polycarbonate copolycarbonate resin compositions and preparing method thereof | Takeshi Sakashita, Takashi Nagai | 1997-07-08 |
| 5606007 | Processes for preparing aromatic polycarbonates | Takeshi Sakashita, Hideyuki Itoi, Takashi Nagai, Kotarou Kishimura | 1997-02-25 |
| 5606008 | Preparation method of polycarbonate resin | Takeshi Sakashita, Takashi Nagai | 1997-02-25 |
| 5606009 | Copolymerized polycarbonates | Takeshi Sakashita, Takashi Nagai | 1997-02-25 |