Patents by Inventor Junzi Hosoda

Junzi Hosoda 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).

  • Production of antibiotics WS-3442 A, B, C, D and E, and their acyl derivatives
    Patent number: 4283492
    Abstract: Production of antibiotic WS-3442 A, B, C, D and E, and their acyl derivatives thereof, the production of antibiotic WS-3442 A, B, C, D and E being a new method by culturing a new species of Streptomyces and their acyl derivatives of said antibiotics being prepared by acylating said antibiotics with an acylating agent. The acyl derivative of antibiotic WS-3442 A, B, C, D and E has antimicrobiological activity and is also useful for intermediate for preparing Cephalosporin derivatives having antimicrobiological activity.
    Type: Grant
    Filed: June 13, 1978
    Date of Patent: August 11, 1981
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Hiroshi Imanaka, Junzi Hosoda, Kazuyoshi Jomon, Heiichi Sakai, Ikuo Ueda, Daizou Morino