Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880825 | Mitomycin derivatives | Masaji Kasai, Yutaka Kanda, Motomichi Kono, Makoto Morimoto, Tadashi Ashizawa | 1989-11-14 |
| 4853385 | 7-N,8-N-Ethylenemitomycin 8-imines | Masaji Kasai, Kunikatsu Shirahata, Motomichi Kono, Makoto Morimoto, Tadashi Ashizawa | 1989-08-01 |
| 4849136 | Process for producing 7-amino-6-demethyl-6-deoxytetracycline | Masaji Kasai | 1989-07-18 |
| 4820824 | Mitomaycin compounds | Motomichi Kono, Masaji Kasai, Makoto Morimoto, Tadashi Ashizawa | 1989-04-11 |