Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6472498 | Diaryl carbonate product and production of polycarbonate | Ryoji Sugise, Shuji Tanaka, Kohichi Kashiwagi, Takashi Doi, Hirofumi Ii +3 more | 2002-10-29 |
| 5631396 | Process for continuously producing dimethyl carbonate | Keigo Nishihira, Shinichi Yoshida, Shuji Tanaka | 1997-05-20 |