Patents by Inventor Hideaki Yamanaka

Hideaki Yamanaka 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).

  • 7-Acylamino-3-substituted cephalosporanic acid derivatives and processes for the preparation thereof
    Patent number: 4409215
    Abstract: The invention relates to novel 7-acylamino-3-substituted cephalosporanic acid derivatives of high antimicrobial activity, of the formula ##STR1## in which R.sup.5 is amino or a protected amino group,R.sup.2 is methoxymethyl,R.sup.3 is carboxy or a protected carboxy group, andR.sup.6 is lower alkyl, and a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: November 14, 1980
    Date of Patent: October 11, 1983
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Takao Takaya, Hisashi Takasugi, Takashi Masugi, Hideaki Yamanaka, Kohji Kawabata