Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684115 | (Co)polycarbonate composition containing boric acid and a basic catalyst | Yutaka Hukuda, Yasuhiro Oshino | 1997-11-04 |
| 5670604 | Preparation of a polycarbonate by melt-polycondensation of a dihydric phenol and a carbonic diester | Yutaka Fukuda | 1997-09-23 |
| 5663278 | (Co)polycarbonate and process for producing the same | Yutaka Hukuda, Yasuhiro Oshino | 1997-09-02 |
| 5658978 | (Co)polycarbonate and borate composition | Yutaka Hukuda, Yasuhiro Oshino | 1997-08-19 |
| 5610262 | Process for producing polycarbonate | Tsutomu Yamato, Yasuhiro Oshino, Yutaka Fukuda, Takaaki Kuwana | 1997-03-11 |