Patents by Inventor Mitsuko Zama

Mitsuko Zama 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).

  • External skin care preparation
    Patent number: 5071971
    Abstract: An external skin care preparation comprising a compound represented by the following general formula (I) or (II), or a salt thereof: ##STR1## wherein R.sup.1 means an aliphatic hydrocarbon group having 9-25 carbon atoms, A and B denote specific groups respectively, R.sup.6 and R.sup.7 are individually an aliphatic hydrocarbon group having 10-26 carbon atoms, and R.sup.8 denotes a group --CH.sub.2 CH.sub.2 OH, --CH.sub.2 COOH, or --COCH.sub.3.
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: December 10, 1991
    Assignee: Kao Corporation
    Inventors: Shinji Yano, Akira Kawamata, Yoshihiro Minematsu, Shuichi Akazaki, Mitsuko Zama, Genji Imokawa, Naotake Takaishi, Tsuyoshi Ohtomo, Takashi Komori
  • External skin care preparation
    Patent number: 5028416
    Abstract: An external skin care preparation comprising a compound represented by the following general formula (I) or (II), or a salt thereof: ##STR1## wherein R.sup.1 means an aliphatic hydrocarbon group having 9-25 carbon atoms, A and B denote specific groups respectively, R.sup.6 and R.sup.7 are individually an aliphatic hydrocarbon group having 10-26 carbon atoms, and R.sup.8 denotes a group --CH.sub.2 CH.sub.2 OH, --CH.sub.2 COOH or --COCH.sub.3.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: July 2, 1991
    Assignee: Kao Corporation
    Inventors: Shinji Yano, Akira Kawamata, Yoshihiro Minematsu, Shuichi Akazaki, Mitsuko Zama, Genji Imokawa, Naotake Takaishi, Tsuyoshi Ohtomo, Takashi Komori
  • External skin care preparation
    Patent number: 4985547
    Abstract: An external skin care preparation comprising a compound represented by the following general formula (I) or (II), or a salt thereof: ##STR1## wherein R.sup.1 means an aliphatic hydrocarbon group having 9-25 carbon atoms, A and B denote specific groups respectively, R.sup.6 and R.sup.7 are individually an aliphatic hydrocarbon group having 10-26 carbon atoms, and R.sup.8 denotes a group --CH.sub.2 CH.sub.2 OH, --CH.sub.2 COOH or --COCH.sub.3.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: January 15, 1991
    Assignee: Kao Corporation
    Inventors: Shinji Yano, Akira Kawamata, Yoshihiro Minematsu, Shuichi Akazaki, Mitsuko Zama, Genji Imokawa, Naotake Takaishi, Tsuyoshi Ohtomo, Takashi Komori