Patents by Inventor Toshiharu Soga

Toshiharu Soga 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).

  • Cationic electrodeposition coating compositions
    Patent number: 7947764
    Abstract: This invention provides a cationic electrodeposition coating composition which exhibits high paint stability, forms coating film excelling in conductivity, intimate adhesion, corrosion resistance, finished appearance and acid resistance, and is capable of forming uniform electrocoated film also on substrates having uneven surfaces, characterized by comprising a conductive filler dispersion paste, base resin and a curing agent, said paste being formed by dispersing a conductive filler (A) composed of high conductive carbon black (a1) and at least one conductive powder (a2) selected from furnace black, graphite and conductive whisker, using a pigment-dispersing resin (B), the composition (i) containing 30-100 wt parts of a conductive filler (A) which contains at least 2 wt parts of high conductive carbon black (a1), per 100 wt parts of combined solid content of the base resin and the curing agent, (ii) the weight ratio of the conductive powder (a2)/high conductive carbon black (a1) being within a range of 0.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: May 24, 2011
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Masaaki Shinohara, Toshiharu Soga, Naoya Haruta
  • Cationic electrodeposition coating compositions
    Publication number: 20070023736
    Abstract: This invention provides a cationic electrodeposition coating composition which exhibits high paint stability, forms coating film excelling in conductivity, intimate adhesion, corrosion resistance, finished appearance and acid resistance, and is capable of forming uniform electrocoated film also on substrates having uneven surfaces, characterized by comprising a conductive filler dispersion paste, base resin and a curing agent, said paste being formed by dispersing a conductive filler (A) composed of high conductive carbon black (a1) and at least one conductive powder (a2) selected from furnace black, graphite and conductive whisker, using a pigment-dispersing resin (B), the composition (i) containing 30-100 wt parts of a conductive filler (A) which contains at least 2 wt parts of high conductive carbon black (a1), per 100 wt parts of combined solid content of the base resin and the curing agent, (ii) the weight ratio of the conductive powder (a2)/high conductive carbon black (a1) being within a range of 0.
    Type: Application
    Filed: July 13, 2006
    Publication date: February 1, 2007
    Inventors: Masaaki Shinohara, Toshiharu Soga, Naoya Haruta