Patents by Inventor Ryuzo Mizuguchi

Ryuzo Mizuguchi 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).

  • Patent number: 3969300
    Abstract: A coating material having excellent adhesion to the surfaces of substrates including metals and excellent flexibility, durability, chemical-resistance and rust-preventive property which comprises water, a water-soluble organic solvent and a water-soluble, thermosetting resin as substantial film-forming component, said resin being obtained by (A) adding an amine to 100 parts by weight of a copolymer consisting of (1) 50 to 80.5 parts by weight of at least one polymerizable, unsaturated monomer free from hydroxyl group, (2) a total of 19.5 to 50 parts by weight of an .alpha.,.beta.-ethylenically unsaturated acid and an epoxy resin having at least two epoxy groups in the molecule, the proportion of said epoxy resin being 0.01 to 0.5 equivalent with respect to the carboxyl group contained in said .alpha.,.beta.-ethylenically unsaturated acid, said .alpha.,.beta.
    Type: Grant
    Filed: September 24, 1973
    Date of Patent: July 13, 1976
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Nobuyoshi Nagata, Ryuzo Mizuguchi
  • Patent number: 3932342
    Abstract: This invention relates to a technique for improving the properties of the so-called methyl methacrylate lacquers prepared from polymers containing methyl methacrylate as a main monomer.That is, a liquid coating composition, which contains as a main component a polymer obtained by polymerization of methyl methacrylate alone or of a monomer mixture comprising 60 - 98 % by weight of methyl methacrylate and 2 - 40 % by weight of other monomer copolymerizable therewith, is ordinarily called as a methyl methacrylate lacquer.
    Type: Grant
    Filed: September 18, 1973
    Date of Patent: January 13, 1976
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Nobuyoshi Nagata, Ryuzo Mizuguchi