Patents by Inventor Shuichi Takamura

Shuichi Takamura 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-methoxy cephalosporin derivative
    Patent number: 4656262
    Abstract: The 7-methoxy-3-heterocyclic thiomethyl cephalosporin derivative possessing excellent antimicrobial activity represented by the general formula ##STR1## wherein R.sup.1 represents ##STR2## group or HOOC-- group, R.sup.2 represents a nitrogen-containing heterocyclic group, and M represents a hydrogen atom or a cation residue forming a salt.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: April 7, 1987
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Takashi Osono, Yoshihiko Oka, Shunichi Watanabe, Takeshi Saito, Hiroshi Gushima, Keisuke Murakami, Isao Takahashi, Hiroshi Yamaguchi, Toshio Sasaki, Kiyoshi Susaki, Shuichi Takamura, Toshiaki Miyoshi
  • 7-Methoxy cephalosporins and process of producing them
    Patent number: 4242449
    Abstract: The 7-methoxy-3-heterocyclic thiomethyl cephalosporin derivative possessing excellent antimicrobial activity represented by the general formula ##STR1## wherein R.sup.1 represents ##STR2## group or HOOC-- group, R.sup.2 represents a nitrogen-containing heterocyclic group, and M represents a hydrogen atom or a cation residue forming a salt.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: December 30, 1980
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Takashi Osono, Yoshihiko Oka, Shunichi Watanabe, Takeshi Saito, Hiroshi Gushima, Keisuke Murakami, Isao Takahashi, Hiroshi Yamaguchi, Toshio Sasaki, Kiyoshi Susaki, Shuichi Takamura, Toshiaki Miyoshi