Patents by Inventor Toshiaki Indou

Toshiaki Indou 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).

  • Method for making amine-modified epoxy resin and cationic electrodeposition coating composition
    Publication number: 20080289969
    Abstract: The present invention provides a cationic electrodeposition coating composition having good appearance of coated film and high throwing power, and a method for making an amine-modified epoxy resin used for the cationic electrodeposition coating composition. The present invention relates to a method for making an amine-modified epoxy resin comprised in a cationic electrodeposition coating composition comprising the steps of: providing a half blocked isocyanate by reaction of an isocyanate compound with a blocking agent, preparing a blocked prepolymer by reaction of the half blocked isocyanate with a polyol, forming an epoxy resin containing oxazolidone ring by reaction of the blocked prepolymer with a diglycidyl ether type epoxy resin, chain-extending the epoxy resin containing oxazolidone ring with at least saturated or non-saturated hydrocarbon group containing dicarboxylic acid, and modifying the chain-extended epoxy resin with an amine.
    Type: Application
    Filed: July 30, 2008
    Publication date: November 27, 2008
    Inventors: Shinsuke Shirakawa, Toshiaki Indou, Yasuo Mihara, Naotaka Kitamura
  • Cissing inhibitor for cationic electrodeposition coating composition and coating composition containing the same
    Publication number: 20060281854
    Abstract: Disclosed is an acrylic copolymer type of cissing inhibitor effective in restraining both of self-cissing and oil cissing.
    Type: Application
    Filed: June 9, 2006
    Publication date: December 14, 2006
    Inventors: Tsuyoshi Imamura, Yuki Fujimura, Toshiaki Indou, Motoi Tanimoto, Kanji Takahashi
  • Method for making amine-modified epoxy resin and cationic electrodeposition coating composition
    Publication number: 20060280949
    Abstract: The present invention provides a cationic electrodeposition coating composition having good appearance of coated film and high throwing power, and a method for making an amine-modified epoxy resin used for the cationic electrodeposition coating composition. The present invention relates to a method for making an amine-modified epoxy resin comprised in a cationic electrodeposition coating composition comprising the steps of: providing a half blocked isocyanate by reaction of an isocyanate compound with a blocking agent, preparing a blocked prepolymer by reaction of the half blocked isocyanate with a polyol, forming an epoxy resin containing oxazolidone ring by reaction of the blocked prepolymer with a diglycidyl ether type epoxy resin, chain-extending the epoxy resin containing oxazolidone ring with at least saturated or non-saturated hydrocarbon group containing dicarboxylic acid, and modifying the chain-extended epoxy resin with an amine.
    Type: Application
    Filed: June 12, 2006
    Publication date: December 14, 2006
    Inventors: Shinsuke Shirakawa, Toshiaki Indou, Yasuo Mihara, Naotaka Kitamura