Patents by Inventor Mika Koda

Mika Koda 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).

  • Overcoating agents for heat-sensitive recording materials
    Patent number: 5100949
    Abstract: This invention provides(i) an overcoating agent for heat-sensitive recording materials which contains as an active component an emulsion of a graft copolymer prepared by graft-copolymerizing an acrylamide or methacrylamide as a monomer (A), a methyl acrylate or methacrylate as a monomer (B), an acrylic or methacrylic acid as a monomer (C) and if required, a monomer other than said monomers as a monomer (D) which is copolymerizable therewith onto a polyvinyl alcohol in the presence of a fatty acid ester of sucrose and water, and(ii) an overcoating agent for heat-sensitive recording materials which contains as an active component an emulsion of a graft copolymer prepared by graft-copolymerizing a methyl acrylate or methacrylate as a monomer (E), a lower hydroxyalkyl acrylate or methacryalte as a monomer (F), an acrylic or methacrylic acid as a monomer (G) and if required, a monomer other than said monomers as a monomer (H) which is copolymerizable therewith onto a polyvinyl alcohol in the presence of a fatty ac
    Type: Grant
    Filed: November 8, 1989
    Date of Patent: March 31, 1992
    Assignee: Arakawa Chemical Industries, Ltd.
    Inventors: Nobuyuki Takahashi, Tetsuya Inoue, Mika Koda