Patents by Inventor Harumi Ushito

Harumi Ushito 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).

  • Heat resistant masking tape
    Patent number: 7641967
    Abstract: A heat resistant masking tape, comprising (1) a heat resistant backing film layer; and (2) a pressure-sensitive adhesive layer disposed on the heat resistant backing film layer, wherein the pressure-sensitive adhesive layer comprises a polymer resulting from polymerizing and cross-linking a monomer mixture comprising an alkyl (meth)acrylate with an alkyl group having 4 to 15 carbon atoms, glycidyl (meth)acrylate and (meth)acrylic acid, the glycidyl (meth)acrylate being present in an amount of 2 to 13% by weight of the total weight of monomers and the (meth)acrylic acid being present in an amount of 1 to 7% by weight of the total weight of monomers.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: January 5, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Masaru Shinohara, Yoong Kim, Yorinobu Takamatsu, Harumi Ushito
  • Heat resistant masking tape
    Publication number: 20070104972
    Abstract: A heat resistant masking tape, comprising (1) a heat resistant backing film layer; and (2) a pressure-sensitive adhesive layer disposed on the heat resistant backing film layer, wherein the pressure-sensitive adhesive layer comprises a polymer resulting from polymerizing and cross-linking a monomer mixture comprising an alkyl (meth)acrylate with an alkyl group having 4 to 15 carbon atoms, glycidyl (meth)acrylate and (meth)acrylic acid, the glycidyl (meth)acrylate being present in an amount of 2 to 13% by weight of the total weight of monomers and the (meth)acrylic acid being present in an amount of 1 to 7% by weight of the total weight of monomers.
    Type: Application
    Filed: June 24, 2004
    Publication date: May 10, 2007
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Masaru Shinohara, Yoong Kim, Yorinobu Takamatsu, Harumi Ushito