Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5248754 | Process for continuous production of polycarbonate oligomer | Noboru Yamanishi, Koji Hashimoto | 1993-09-28 |
| 4678845 | Mixed polycarbonate resin composition | Masayoshi Takamatsu, Kouji Hashimoto, Akiyoshi Manabe | 1987-07-07 |