Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5047497 | Water-in-oil emulsion process for producing an aromatic polycarbonate | Mitsuhiko Tamura | 1991-09-10 |
| 4839458 | Preparation with controlled amounts of polycarbonate carbon tetrachloride | Shinichiro Koga, Akira Matsuno, Katsuyuki Sakata, Yoshiaki Ohtani | 1989-06-13 |