Patents by Inventor Seiko Inoue, legal representative

Seiko Inoue, legal representative 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 of producing oil-in-water type emulsion containing internally crosslinked fine resin particle, oil-in-water type emulsion containing internally crosslinked fine resin particle, cation electrodeposition coating composition and substance coated
    Patent number: 7351755
    Abstract: In a method of producing an oil-in-water type emulsion containing an internally crosslinked fine resin particle, the fine resin particle is encapsulated in an emulsion particle having an average particle diameter of 0.02 to 0.3 ?m. The method includes a step of undergoing phase transition from a water-in-oil type emulsion (Y) which includes a resin (A) having a cationic group or an anionic group, an acid or a base (B) neutralizing 20 to 150 mole percent of the cationic group or the anionic group in the resin (A), an internally crosslinked fine resin particle (C), having an average particle diameter of 0.01 to 0.2 ?m, dispersed in an oil phase and an aqueous medium (D) to an oil-in-water type emulsion (Z) by adding the aqueous medium (D) further to the water-in-oil type emulsion (Y).
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: April 1, 2008
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Hitoshi Hori, Yasuhiro Hayashi, Seiko Inoue, legal representative, Hisaichi Muramoto, Tsuyoshi Inoue