Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824955 | Selenium oxy chloride-pyridine or bipyridine complexes | Hisao Ekimoto, Masanobu Suzuki, Takao Izawa, Katsutoshi Takahashi, Akio Fujii | 1989-04-25 |
| 4808703 | Novel 3-(4'-aminobutylamino) propylaminobleomycin derivatives | Hamao Umezawa, Akio Fujii, Yasuhiko Muraoka, Takeyo Fukuoka, Katsutoshi Takahashi | 1989-02-28 |
| 4568490 | Aminopropylaminobleomycin derivatives and process for preparation thereof | Hamao Umezawa, Akio Fujii, Yasuhiko Muraoka, Takeyo Fukuoka, Katsutoshi Takahashi | 1986-02-04 |
| 4537880 | Aminopropylaminobleomycin derivatives and process for preparation thereof | Hamao Umezawa, Akio Fujii, Yasuhiko Muraoka, Takeyo Fukuoka, Katsutoshi Takahashi | 1985-08-27 |
| 4500452 | (Amido)N-substituted bleomycins, salts thereof and process for preparation thereof | Hamao Umezawa, Akio Fujii, Yasuhiko Muraoka, Takeyo Fukuoka, Katsutoshi Takahashi | 1985-02-19 |
| 4472304 | (Amido)N-substituted bleomycins, salts thereof and process for preparation thereof | Hamao Umezawa, Akio Fujii, Yasuhiko Muraoka, Takeyo Fukuoka, Katsutoshi Takahashi | 1984-09-18 |