Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4472304 | (Amido)N-substituted bleomycins, salts thereof and process for preparation thereof | Hamao Umezawa, Yasuhiko Muraoka, Tokuji Nakatani, Takeyo Fukuoka, Katsutoshi Takahashi | 1984-09-18 |
| 4430346 | Novel carcinostatic substance and process for synthesis thereof | Hamao Umezawa, Tomio Takeuchi, Shinichi Kondo, Hironobu Iinuma, Daishiro Ikeda +1 more | 1984-02-07 |
| 4326054 | Cleomycins and process for producing same | Hamao Umezawa, Tomohisa Takita, Yasuhiko Muraoka, Mamoru Kunishima | 1982-04-20 |
| 4267102 | Bleomycin group antibiotics | Takeyo Fukuoka, Yasuhiko Muraoka, Tomohisa Takita, Hamao Umezawa | 1981-05-12 |
| RE30451 | Novel process for producing antibiotics bleomycin | Hamao Umezawa, Kenji Maeda, Tomohisa Takita, Yuya Nakayama, Nobuyoshi Shimada +1 more | 1980-12-16 |
| 4238391 | 3-[(S)-1'-phenylethylamino]propylaminobleomycin, non-toxic salt thereof, and method for producing same | Tomohisa Takita, Takeyo Fukuoka, Yasuhiko Muraoka, Osamu Yoshioka, Hamao Umezawa | 1980-12-09 |
| RE30413 | Bleomycinic acid and process for preparing thereof | Hamao Umezawa, Yasushi Takahashi, Tadashi Shirai | 1980-10-07 |
| 4195018 | 3-[(S)-1'-Phenylethylamino]propylaminobleomycin, non-toxic salt thereof, and method for producing same | Tomohisa Takita, Takeyo Fukuoka, Yasuhiko Muraoka, Osamu Yoshioka, Hamao Umezawa | 1980-03-25 |