Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5240944 | Cyclic guanidine derivatives, anti-ulceratives and method of manufacturing the same | Tsuyoshi Tomiyama, Akira Tomiyama, Shuuichi Wakabayashi, Tomoyuki Kawai, Naoto Ueyama +1 more | 1993-08-31 |
| 5008282 | Cyclic guanidine derivatives, anti-ulceratives and methods of manufacturing the same | Tsuyoshi Tomiyama, Akira Tomiyama, Shuuichi Wakabayashi, Tomoyuki Kawai, Naoto Ueyama +1 more | 1991-04-16 |
| 4453003 | Process for producing threo-3-amino-2-hydroxy-butanoyl-aminoacetic acids as well as novel intermediates therefor and process for producing them | Hamao Umezawa, Takaaki Aoyagi, Rinzo Nishizawa, Masao Suzuki, Tetsushi Saino | 1984-06-05 |
| 4391986 | Process for producing threo-3-amino-2-hydroxybutanoyl-aminoacetic acids, as well as novel intermediates therefor and process for producing them | Hamao Umezawa, Takaaki Aoyagi, Rinzo Nishizawa, Masao Suzuki, Tetsushi Saino | 1983-07-05 |
| 4281180 | Process for producing threo-3-amino-2-hydroxybutanoyl-aminoacetic acids, as well as novel intermediated therefor and process for producing them | Hamao Umezawa, Takaaki Aoyagi, Rinzo Nishizawa, Masao Suzuki, Tetsushi Saino | 1981-07-28 |
| RE30413 | Bleomycinic acid and process for preparing thereof | Hamao Umezawa, Yasushi Takahashi, Akio Fujii | 1980-10-07 |