Patents by Inventor Masahiro Mizuma

Masahiro Mizuma 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).

  • Publication number: 20150140884
    Abstract: A stretchable coated fabric is treated for water repellency with a fluorinated water repellent that comprises a copolymer containing a perfluoroalkyl group with six or less carbon atoms (C6 fluorinated water repellent). The use of no C8 fluorinated water repellents that contain perfluorooctanoic acid, perfluorooctane sulfonate, and the like makes the fabric exerts no influence on the environment. And the fluorinated water repellent has a toluene repellency of 100 seconds or longer; a synthetic resin solution applied to at least one side of the stretchable fiber fabric has a thixotropic index at 23° C. in a range from 1.4 to 2.0; and the synthetic resin has a 100% modulus of 5 kgf/cm2 or greater. This prevents the synthetic resin from leaking to the back side and allows formation of a resin coating film that has good film forming properties.
    Type: Application
    Filed: June 10, 2013
    Publication date: May 21, 2015
    Applicant: Seiren Co., Ltd.
    Inventors: Masahiro Mizuma, Yasuhiro Horikawa
  • Publication number: 20120070635
    Abstract: This invention provides a waterproof and moisture-permeable fabric which prevents to lower in a water pressure resistance, repetitively washed. The waterproof and moisture-permeable fabric consists of a body of a fabric and a microporous film of mainly polyurethane which is laid on the body. The microporous film contains 1 to 9 mass % of fluorinated water repellent agent, 0.1 to 2 mass % of oil-soluble fluorinated surfactant and if necessary 3 to 45 mass % of fine silica powders. The waterproof and moisture-permeable fabric is obtained by the following method. After coating a resin compound on the surface of the body, the resin compound is dipped in a coagulating bath to form the microporous film. The resin compound dissolves or disperses mainly polyurethane, 1 to 9 mass % of fluorinated water repellent agent, 0.1 to 2 mass % of oil-soluble fluorinated surfactant and if necessary 3 to 45 mass % of fine silica powders in N,N-dimethylformamide.
    Type: Application
    Filed: July 15, 2011
    Publication date: March 22, 2012
    Inventors: Kiyoshi Nakagawa, Yoshiaki Kurushima, Munemasa Okubo, Kohei Toyofuku, Masahiro Mizuma, Ken Kato
  • Publication number: 20080299357
    Abstract: This invention provides a fabric having a foamed layer. The fabric is obtained by the foaming method which prevents to expand heat expansible micro capsules in a cross-linked resin. A foamed layer is laminated on the fabric material. The foamed layer is comprising of heat expanded micro capsules, a synthetic resin holding the capsules on the fabric material, silica fine powders which are hydrophilic and fine porous. The fabric is obtained by the following method. A synthetic resin solution comprising of heat expansible micro capsules and the silica fine powders is prepared. The solution is applied on the fabric material at all surface or pattered surface. The synthetic resin layer is formed after drying. After that, the heat expansible micro capsules are expanded by heating.
    Type: Application
    Filed: July 16, 2008
    Publication date: December 4, 2008
    Applicants: UNITIKA FIBERS LTD., SEIREN CO., LTD.
    Inventors: Kiyoshi Nakagawa, Yoshiaki Kurushima, Masahiro Mizuma