Issued Patents 1989
Showing 1–2 of 2 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 |