Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6031101 | Oxidation process using tempo | Paul N. Devine, Zhiguo Jake Song, David M. Tschaen, Mangzu Zhao | 2000-02-29 |
| 5068322 | Crystalline cephalosporin compounds | Susumu Nakagawa, Ryosuke Ushijima, Fumio Nakano, Koji Yamada | 1991-11-26 |
| 4987235 | Isoindoline derivatives and processes for their preparation | Ryosuke Ushijima, Susumu Nakagawa | 1991-01-22 |
| 4959469 | Crystalline cephalosporin compounds | Susumu Nakagawa, Ryosuke Ushijima, Fumio Nakano, Koji Yamada | 1990-09-25 |
| 4883868 | 7-amino-3-(substituted isoindolinium)methyl-3-cephem derivatives | Susumu Nakagawa, Ryosuke Ushijima, Fumio Nakano, Koji Yamada | 1989-11-28 |
| 4742053 | 3-Isoquinoliniomethyl cephalosporin derivatives | Susumu Nakagawa, Ryosuke Ushijima, Norikazu Ban, Minoru Sanada | 1988-05-03 |
| 4677100 | Cephalosporin derivatives | Susumu Nakagawa, Ryosuke Ushijima, Fumio Nakano, Koji Yamada | 1987-06-30 |