Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880825 | Mitomycin derivatives | Masaji Kasai, Yutaka Kanda, Motomichi Kono, Yutaka Saito, Tadashi Ashizawa | 1989-11-14 |
| 4879386 | Anti-tumor DC-52 compounds | Hiromitsu Saito, Yoichi Uosaki, Akira Sato, Tadashi Hirata, Tadashi Ashizawa | 1989-11-07 |
| 4877776 | K-252 compounds | Chikara Murakata, Akira Sato, Masaji Kasai, Eiji Kobayashi, Shiro Akinaga | 1989-10-31 |
| 4863935 | Mitomycin compounds having useful anti-tumor activity | Yasushi Shida, Tokuyuki Kuroda, Ikuo Matsukuma, Tadashi Ashizawa | 1989-09-05 |
| 4853385 | 7-N,8-N-Ethylenemitomycin 8-imines | Yutaka Saito, Masaji Kasai, Kunikatsu Shirahata, Motomichi Kono, Tadashi Ashizawa | 1989-08-01 |
| 4822882 | DC-52 derivatives and their antitumor use | Hiromitsu Saito, Yoichi Uosaki, Akira Sato, Tadashi Hirata, Tadashi Ashizawa | 1989-04-18 |
| 4820824 | Mitomaycin compounds | Motomichi Kono, Masaji Kasai, Yutaka Saito, Tadashi Ashizawa | 1989-04-11 |
| 4791113 | Mitomycin derivatives as antileukemia agents | Tokuyuki Kuroda, Koji Hisamura, Tohru Sugaya, Yutaka Ohsawa, Hideo Ueno +1 more | 1988-12-13 |
| 4791130 | Mitomycin derivatives as antileukemia agents | Tokuyuki Kuroda, Koji Hisamura, Tohru Sugaya, Yutaka Ohsawa, Hideo Ueno +1 more | 1988-12-13 |
| 4771068 | Mitomycin derivatives having anti-tumor and antibacterial utility | Masaji Kasai, Yutaka Saito, Motomichi Kono, Akira Sato, Hiroshi Sano +2 more | 1988-09-13 |
| 4748251 | 7-n-aminomethylenemitomycin derivative | Kunikatsu Shirahata, Motomichi Kono, Masaji Kasai, Tadashi Ashizawa | 1988-05-31 |
| 4691024 | New mitomycin derivatives, preparation thereof and pharmaceutical compositions containing them | Kunikatsu Shirahata, Motomichi Kono, Yutaka Saito, Masaji Kasai, Tadashi Ashizawa | 1987-09-01 |
| 4650869 | DX-52-1 compounds and process for preparing the same | Tadashi Hirata, Shigeru Kobayashi, Keiichi Takahashi, Yuko Arai | 1987-03-17 |
| 4649199 | Salt of DC-52 and a pharmaceutical composition containing the same | Shinzo Ishii, Shigeo Katsumata, Yukou Arai, Kazuhisa Fujimoto | 1987-03-10 |
| 4618687 | Cyclopentenone compound and process for production thereof | Tadashi Hirata, Hiromitsu Saito | 1986-10-21 |
| 4593097 | Phenazine carboxylic acid derivatives and a process for production thereof | Fusao Tomita, Keiichi Takahashi, Isao Kawamoto, Kozo Asano, Tadashi Ashizawa +1 more | 1986-06-03 |
| 4563462 | Substance AX-2, a process for producing the same and an antitumor composition containing the same | Shinzo Ishii, Shigeo Katsumata, Yuko Arai, Tadashi Ashizawa, Kunikatsu Shirahata +2 more | 1986-01-07 |
| 4511560 | Antibiotic substances DC-45, and their use as medicaments | Fusao Tomita, Tatsuya Tamaoki, Kunikatsu Shirahata, Takao Iida, Kazuhisa Fujimoto | 1985-04-16 |
| 4393056 | Antibiotics tetronolide compounds and process for production thereof | Fusao Tomita, Tatsuya Tamaoki, Kunikatsu Shirahata, Masaji Kasai, Noriaki Hirayama +1 more | 1983-07-12 |