Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5324809 | Melt catalytic preparation of copolymeric polycarbonate from hydroquinone | Takeshi Sakashita, Tomoaki Shimoda, Shuichi Uchimura | 1994-06-28 |
| 5286834 | Melt preparation of copolycarbonate with alkaline compound catalyst and boric acid compound catalyst | Takeshi Sakashita, Tomoaki Shimoda | 1994-02-15 |