Patents by Inventor Kei-Ichi Fujisawa

Kei-Ichi Fujisawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Antibiotic complex
    Patent number: 4108725
    Abstract: A novel aminoglycoside antibiotic complex designated herein as Bu-2183 is produced by fermentation of Pseudomonas sp. strain D946-B83, A.T.C.C. 31086. Complex Bu-2183 is known to consist of at least five components, said components being herein designated Bu-2183 A, A.sub.2, B, C and D. The complex and the individual aminoglycoside components Bu-2183 A, A.sub.2, and B are found to have a broad spectrum of antibacterial activity and are especially useful in inhibiting aminoglycoside-resistant organisms including Pseudomonas species.
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: August 22, 1978
    Assignee: Bristol-Myers Company
    Inventors: Hiroshi Kawaguchi, Koji Tomita, Kei-ichi Fujisawa, Hiroshi Tsukiura
  • Antibiotic complex Bu 2183
    Patent number: 4012576
    Abstract: A novel aminoglycoside antibiotic complex designated herein as Bu-2183 is produced by fermentation of Pseudomonas sp. strain D946-B83, A.T.C.C. 31086. Complex Bu-2183 is known to consist of at least five components, said components being herein designated Bu-2183 A, A.sub.2, B, C and D. The complex and the individual aminoglycoside components Bu-2183 A, A.sub.2, and B are found to have a broad spectrum of antibacterial activity and are especially useful in inhibiting aminoglycoside-resistant organisms including Pseudomonas species.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: March 15, 1977
    Assignee: Bristol-Myers Company
    Inventors: Hiroshi Kawaguchi, Koji Tomita, Kei-Ichi Fujisawa, Hiroshi Tsukiura