Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880825 | Mitomycin derivatives | Masaji Kasai, Yutaka Kanda, Yutaka Saito, Makoto Morimoto, Tadashi Ashizawa | 1989-11-14 |
| 4853385 | 7-N,8-N-Ethylenemitomycin 8-imines | Yutaka Saito, Masaji Kasai, Kunikatsu Shirahata, Makoto Morimoto, Tadashi Ashizawa | 1989-08-01 |
| 4820824 | Mitomaycin compounds | Masaji Kasai, Yutaka Saito, Makoto Morimoto, Tadashi Ashizawa | 1989-04-11 |