Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4808703 | Novel 3-(4'-aminobutylamino) propylaminobleomycin derivatives | Hamao Umezawa, Akio Fujii, Yasuhiko Muraoka, Tokuji Nakatani, Katsutoshi Takahashi | 1989-02-28 |
| 4568490 | Aminopropylaminobleomycin derivatives and process for preparation thereof | Hamao Umezawa, Akio Fujii, Yasuhiko Muraoka, Tokuji Nakatani, Katsutoshi Takahashi | 1986-02-04 |
| 4537880 | Aminopropylaminobleomycin derivatives and process for preparation thereof | Hamao Umezawa, Akio Fujii, Yasuhiko Muraoka, Tokuji Nakatani, Katsutoshi Takahashi | 1985-08-27 |
| 4500452 | (Amido)N-substituted bleomycins, salts thereof and process for preparation thereof | Hamao Umezawa, Akio Fujii, Yasuhiko Muraoka, Tokuji Nakatani, Katsutoshi Takahashi | 1985-02-19 |
| 4472304 | (Amido)N-substituted bleomycins, salts thereof and process for preparation thereof | Hamao Umezawa, Akio Fujii, Yasuhiko Muraoka, Tokuji Nakatani, Katsutoshi Takahashi | 1984-09-18 |
| 4267102 | Bleomycin group antibiotics | Akio Fujii, Yasuhiko Muraoka, Tomohisa Takita, Hamao Umezawa | 1981-05-12 |
| 4238391 | 3-[(S)-1'-phenylethylamino]propylaminobleomycin, non-toxic salt thereof, and method for producing same | Tomohisa Takita, Akio Fujii, Yasuhiko Muraoka, Osamu Yoshioka, Hamao Umezawa | 1980-12-09 |
| 4195018 | 3-[(S)-1'-Phenylethylamino]propylaminobleomycin, non-toxic salt thereof, and method for producing same | Tomohisa Takita, Akio Fujii, Yasuhiko Muraoka, Osamu Yoshioka, Hamao Umezawa | 1980-03-25 |