Patents by Inventor Masayuki Nagumo

Masayuki Nagumo 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: 10001891
    Abstract: An object of the present disclosure is to improve visibility while suppressing an impedance of an antenna pattern formed on a conductive film. In a film base material on which an antenna pattern for near field communication is formed, the antenna pattern is formed of a metal having excellent conductivity. The antenna pattern is formed into a loop line shape with three to five turns and has a length of 200 to 500 mm, an interval between adjacent loop lines of 200 to 400 ?m, and a line width of 4 to 20 ?m. The thickness of the antenna pattern is set to a value calculated by the following Formula (1) so that the impedance at a maximum load becomes equal to or less than 50?.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: June 19, 2018
    Assignee: SMK Corporation
    Inventors: Ryuji Ikeda, Masayuki Nagumo, Ryo Okamura, Kensaku Mizumoto
  • Patent number: 9859616
    Abstract: The antenna-equipped film includes: a film base; an antenna pattern formed on the film base; and a number-of-winding setting circuit connected to the antenna pattern. The antenna pattern is formed as a plurality of linear loops. The number-of-winding setting circuit includes: first wiring connected to the antenna pattern to constitute a spiral circuit; jumper switches intervening by two each in each lap of the spiral circuit; second wiring connected to the end portion of the innermost lap of the spiral circuit and a position between the two jumper switches in each lap excluding the innermost lap and the outermost lap of the spiral circuit; third wiring connected in common to the other ends of the second wiring; and jumper switches intervening in the second wiring. The outer end of the spiral circuit and the third wiring constitute a pair of terminals.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: January 2, 2018
    Assignee: SMK Corporation
    Inventors: Ryuji Ikeda, Masayuki Nagumo, Ryo Okamura, Kensaku Mizumoto
  • Publication number: 20170277298
    Abstract: An object of the present disclosure is to improve visibility while suppressing an impedance of an antenna pattern formed on a conductive film. In a film base material on which an antenna pattern for near field communication is formed, the antenna pattern is formed of a metal having excellent conductivity. The antenna pattern is formed into a loop line shape with three to five turns and has a length of 200 to 500 mm, an interval between adjacent loop lines of 200 to 400 ?m, and a line width of 4 to 20 ?m. The thickness of the antenna pattern is set to a value calculated by the following Formula (1) so that the impedance at a maximum load becomes equal to or less than 50?.
    Type: Application
    Filed: September 9, 2016
    Publication date: September 28, 2017
    Inventors: Ryuji IKEDA, Masayuki NAGUMO, Ryo OKAMURA, Kensaku MIZUMOTO
  • Publication number: 20170279198
    Abstract: The antenna-equipped film includes: a film base; an antenna pattern formed on the film base; and a number-of-winding setting circuit connected to the antenna pattern. The antenna pattern is formed as a plurality of linear loops. The number-of-winding setting circuit includes: first wiring connected to the antenna pattern to constitute a spiral circuit; jumper switches intervening by two each in each lap of the spiral circuit; second wiring connected to the end portion of the innermost lap of the spiral circuit and a position between the two jumper switches in each lap excluding the innermost lap and the outermost lap of the spiral circuit; third wiring connected in common to the other ends of the second wiring; and jumper switches intervening in the second wiring. The outer end of the spiral circuit and the third wiring constitute a pair of terminals.
    Type: Application
    Filed: August 26, 2016
    Publication date: September 28, 2017
    Inventors: Ryuji IKEDA, Masayuki NAGUMO, Ryo OKAMURA, Kensaku MIZUMOTO
  • Patent number: 4039710
    Abstract: A method for preparing a novel compound, i.e. a resinous material, characterized in that an epoxy compound is allowed to react with ammonium salt or a metal salt (for example, lithium salt, sodium salt, potassium salt, magnesium salt, etc.) of polyglutamic acid. The resulting reaction product is useful in a method for treating shaped materials especially polyester textiles. In this method the shaped materials are treated with the novel resinous material to improve the appearance and handling characteristics thereof. A process for providing a wooly finish on polyester textiles is characterized by treating textiles (including polyester knittings and mixed spun fabrics or knittings or mixed woven fabrics or knittings) in a bath of an emulsified mixed solution of an epoxy compound and a metal salt of polyglutamic acid containing a catalyst, and carrying out a heat-treatment of the resulted textiles after pre-drying.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: August 2, 1977
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Yasuo Fujimoto, Keizo Tatsukawa, Koichi Nagaoka, Masayuki Nagumo, Kiichi Nagai
  • Patent number: 3945952
    Abstract: A method for preparing a novel compound, i.e. a resinous material, characterized in that an epoxy compound is allowed to react with ammonium salt or a metal salt (for example, lithium salt, sodium salt, potassium salt, magnesium salt, etc.) of polyglutamic acid. The resulting reaction product is useful in a method for treating shaped materials especially polyester textiles. In this method the shaped materials are treated with the novel resinous material to improve the appearance and handling characteristics thereof. A process for providing a wooly finish on polyester textiles is characterized by treating textiles (including polyester knittings and mixed spun fabrics or knittings or mixed woven fabrics or knittings) in a bath of an emulsified mixed solution of an epoxy compound and a metal salt of polyglutamic acid containing a catalyst, and carrying out a heat-treatment of the resulted textiles after pre-drying.
    Type: Grant
    Filed: September 27, 1972
    Date of Patent: March 23, 1976
    Assignee: Kyowa Hakko Kogyo Co., Ltd
    Inventors: Yasuo Fujimoto, Keizo Tatsukawa, Koichi Nagaoka, Masayuki Nagumo, Kiichi Nagai