Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6514946 | Macrolide antibiotics and treatment and prophylaxis of pasteurellosis using the same | Toshiaki Miyake, Masa Hamada, Tomio Takeuchi, Sumio Umezawa | 2003-02-04 |
| 4960910 | Oxetane derivatives | Kuniki Kato, Shigeru Nishiyama, Shosuke Yamamura | 1990-10-02 |
| 4716221 | 4'-demethyl-4-epipodophyllotoxin derivative | Hamao Umezawa, Tomio Takeuchi, Shinichi Kondo, Wataru Tanaka, Yoshio Nishimura +1 more | 1987-12-29 |
| 4547567 | Derivatives of 4'-demethyl-4-epipodophyllotoxin | Hamao Umezawa, Tomio Takeuchi, Shinichi Kondo, Wataru Tanaka, Yoshio Nishimura +1 more | 1985-10-15 |
| 4530998 | 2'-Deoxyoxanosine | Hamao Umezawa, Tomio Takeuchi, Masaaki Ishizuka, Nobuyoshi Shimada, Kuniki Kato | 1985-07-23 |
| 4495347 | Antibiotic oxanosine and process for the preparation thereof | Hamao Umezawa, Nobuyoshi Shimada, Hiroshi Naganawa, Masa Hamada, Tomio Takeuchi | 1985-01-22 |
| 4394446 | Process for the preparation of the antibiotic oxanosine | Hamao Umezawa, Nobuyoshi Shimada, Hiroshi Naganawa, Masa Hamada, Tomio Takeuchi | 1983-07-19 |
| 4326054 | Cleomycins and process for producing same | Hamao Umezawa, Akio Fujii, Yasuhiko Muraoka, Mamoru Kunishima | 1982-04-20 |
| 4267102 | Bleomycin group antibiotics | Akio Fujii, Takeyo Fukuoka, Yasuhiko Muraoka, Hamao Umezawa | 1981-05-12 |
| 4240975 | Bestatin | Hamao Umezawa, Takaaki Aoyagi, Rinzo Nishizawa, Tetsushi Saino | 1980-12-23 |
| RE30451 | Novel process for producing antibiotics bleomycin | Hamao Umezawa, Kenji Maeda, Yuya Nakayama, Akio Fujii, Nobuyoshi Shimada +1 more | 1980-12-16 |
| 4238391 | 3-[(S)-1'-phenylethylamino]propylaminobleomycin, non-toxic salt thereof, and method for producing same | Akio Fujii, Takeyo Fukuoka, Yasuhiko Muraoka, Osamu Yoshioka, Hamao Umezawa | 1980-12-09 |
| 4195018 | 3-[(S)-1'-Phenylethylamino]propylaminobleomycin, non-toxic salt thereof, and method for producing same | Akio Fujii, Takeyo Fukuoka, Yasuhiko Muraoka, Osamu Yoshioka, Hamao Umezawa | 1980-03-25 |
| 4189604 | Bestatin | Hamao Umezawa, Takaaki Aoyagi, Rinzo Nishizawa, Tetsushi Saino | 1980-02-19 |