Patents by Inventor Makiko Nanke

Makiko Nanke 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).

  • Pigment dispersion and paint
    Patent number: 7780778
    Abstract: A first pigment made of a coloring pigment having a primary average particle diameter of 200 nm or smaller or, or made of carbon black having an average particle diameter of a structure of 100 nm or smaller, and a second pigment made of barium sulfate having a primary average particle diameter of 55 nm or smaller are combined so that a value of (acid amount-base amount) of one pigment becomes positive, and a value of (acid amount-base amount) of other pigment becomes negative, and the combined first and second pigments are dispersed in a medium in the presence of a pigment dispersant.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: August 24, 2010
    Assignee: Nippon Point Co., Ltd.
    Inventors: Hifumi Egusa, Shinji Shimada, Nobuhisa Sudo, Takashi Koizumi, Makiko Nanke
  • Pigment dispersion and paint
    Publication number: 20060141162
    Abstract: A first pigment made of a coloring pigment having a primary average particle diameter of 200 nm or smaller or, or made of carbon black having an average particle diameter of a structure of 100 nm or smaller, and a second pigment made of barium sulfate having a primary average particle diameter of 55 nm or smaller are combined so that a value of (acid amount-base amount) of one pigment becomes positive, and a value of (acid amount-base amount) of other pigment becomes negative, and the combined first and second pigments are dispersed in a medium in the presence of a pigment dispersant.
    Type: Application
    Filed: December 27, 2005
    Publication date: June 29, 2006
    Inventors: Hifumi Egusa, Shinji Shimada, Nobuhisa Sudo, Takashi Koizumi, Makiko Nanke