Patents by Inventor Hiroko Ogisu

Hiroko Ogisu 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).

  • Stainproofing composition having water-and-oil-repellency
    Patent number: 5883175
    Abstract: A stainproofing composition having water- and oil-repellency, containing a polymer emulsion prepared by dissolving at least one polyfluoroalkyl group-containing compound selected from the group consisting of a polyfluoroalkyl group-containing (meth)acrylate polymer, a polyfluoroalkyl group-containing polyester, a polyfluoroalkyl group-containing maleate and a polyfluoroalkyl group-containing fumarate in at least one monomer selected from the group consisting of a (meth)acrylate ester, a vinyl ester, a styrene compound and vinylidene chloride, vinyl chloride, emulsifying the resultant solution in water to prepare an oil-in-water emulsion, and polymerizing the emulsion exhibits excellent water- and oil-repellency and stainproof properties. It is also superior in sedimentation stability of the emulsion.
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: March 16, 1999
    Assignee: Daikin Industries Ltd.
    Inventors: Motonobu Kubo, Masamichi Morita, Hiroko Ogisu, Takashi Enomoto, Akihiko Ueda