Patents by Inventor Fumiyo Yoshida

Fumiyo Yoshida 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).

  • .alpha.-crystals of cefazolin sodium
    Patent number: 4898937
    Abstract: This invention relates to .alpha.-crystals of cefazolin sodium with a water content in the range of 13.0 to 15.8%, useful as an antibiotic of improved thermal and light stability.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: February 6, 1990
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Toshinobu Uemura, Keiji Kai, Masateru Kodani, Fumiyo Yoshida, Matsuhiko Aratani