Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5892089 | Process for preparing diaryl carbonate | Katsumasa Harada, Ryoji Sugise, Koichi Kashiwagi, Takashi Doi, Keigo Nishihira +2 more | 1999-04-06 |
| 5892091 | Catalyst for decarbonylation reaction | Katsumasa Harada, Keigo Nishihira, Shuji Tanaka, Satoru Fujitsu, Ryoji Sugise +4 more | 1999-04-06 |
| 5648510 | Process for preparation of diaryl carbonate | Katsumasa Harada, Keigo Nishihira, Shuji Tanaka, Satoru Fujitsu, Ryoji Sugise +2 more | 1997-07-15 |