Patents by Inventor Nobutaka Matsushita

Nobutaka Matsushita 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: 9776289
    Abstract: A fluorocarbon resin composite includes a fluorocarbon resin layer on a base, in which a fluorocarbon resin constituting the fluorocarbon resin layer is crosslinked by electron beam irradiation, and the base has a desired shape obtained by machining. The fluorocarbon resin is composed of a tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer, polytetrafluoroethylene, or a mixture of the tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer and polytetrafluoroethylene. A fluorocarbon resin composite, cookware, and a roller and a belt for use in office automation equipment are each produced by applying an uncrosslinked fluorocarbon resin on a base, subjecting the fluorocarbon resin to electron beam irradiation in a low-oxygen atmosphere to crosslink the fluorocarbon resin while the temperature of the fluorocarbon resin is maintained at a temperature equal to or higher than the melting point of the fluorocarbon resin, and machining the base into a desired shape.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: October 3, 2017
    Assignee: SUMITOMO ELECTRIC FINE POLYMER, INC.
    Inventors: Kazuaki Ikeda, Nobutaka Matsushita, Yoshimasa Suzuki
  • Publication number: 20140109641
    Abstract: A fluorocarbon resin composite includes a fluorocarbon resin layer on a base, in which a fluorocarbon resin constituting the fluorocarbon resin layer is crosslinked by electron beam irradiation, and the base has a desired shape obtained by machining. The fluorocarbon resin is composed of a tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer, polytetrafluoroethylene, or a mixture of the tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer and polytetrafluoroethylene. A fluorocarbon resin composite, cookware, and a roller and a belt for use in office automation equipment are each produced by applying an uncrosslinked fluorocarbon resin on a base, subjecting the fluorocarbon resin to electron beam irradiation in a low-oxygen atmosphere to crosslink the fluorocarbon resin while the temperature of the fluorocarbon resin is maintained at a temperature equal to or higher than the melting point of the fluorocarbon resin, and machining the base into a desired shape.
    Type: Application
    Filed: November 25, 2013
    Publication date: April 24, 2014
    Applicant: SUMITOMO ELECTRIC FINE POLYMER, INC.
    Inventors: Kazuaki IKEDA, Nobutaka MATSUSHITA, Yoshimasa SUZUKI
  • Publication number: 20140106084
    Abstract: A fluorocarbon resin composite includes a fluorocarbon resin layer on a base, in which a fluorocarbon resin constituting the fluorocarbon resin layer is crosslinked by electron beam irradiation, and the base has a desired shape obtained by machining. The fluorocarbon resin is composed of a tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer, polytetrafluoroethylene, or a mixture of the tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer and polytetrafluoroethylene. A fluorocarbon resin composite, cookware, and a roller and a belt for use in office automation equipment are each produced by applying an uncrosslinked fluorocarbon resin on a base, subjecting the fluorocarbon resin to electron beam irradiation in a low-oxygen atmosphere to crosslink the fluorocarbon resin while the temperature of the fluorocarbon resin is maintained at a temperature equal to or higher than the melting point of the fluorocarbon resin, and machining the base into a desired shape.
    Type: Application
    Filed: November 25, 2013
    Publication date: April 17, 2014
    Applicant: SUMITOMO ELECTRIC FINE POLYMER, INC.
    Inventors: Kazuaki IKEDA, Nobutaka MATSUSHITA, Yoshimasa SUZUKI
  • Publication number: 20140077419
    Abstract: A fluorocarbon resin composite includes a fluorocarbon resin layer on a base, in which a fluorocarbon resin constituting the fluorocarbon resin layer is crosslinked by electron beam irradiation, and the base has a desired shape obtained by machining. The fluorocarbon resin is composed of a tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer, polytetrafluoroethylene, or a mixture of the tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer and polytetrafluoroethylene. A fluorocarbon resin composite, cookware, and a roller and a belt for use in office automation equipment are each produced by applying an uncrosslinked fluorocarbon resin on a base, subjecting the fluorocarbon resin to electron beam irradiation in a low-oxygen atmosphere to crosslink the fluorocarbon resin while the temperature of the fluorocarbon resin is maintained at a temperature equal to or higher than the melting point of the fluorocarbon resin, and machining the base into a desired shape.
    Type: Application
    Filed: November 25, 2013
    Publication date: March 20, 2014
    Applicant: SUMITOMO ELECTRIC FINE POLYMER, INC.
    Inventors: Kazuaki IKEDA, Nobutaka MATSUSHITA, Yoshimasa SUZUKI
  • Publication number: 20100285262
    Abstract: [Object] There are provided a fluorocarbon resin composite having improved abrasion resistance while nonadhesiveness, which is a feature of a fluorocarbon resin, is maintained, cookware, and a roller and a belt for use in office automation equipment. [Solving Means] A fluorocarbon resin composite includes a fluorocarbon resin layer on a base, in which a fluorocarbon resin constituting the fluorocarbon resin layer is crosslinked by electron beam irradiation, and the base has a desired shape obtained by machining. The fluorocarbon resin is composed of a tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer, polytetrafluoroethylene, or a mixture of the tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer and polytetrafluoroethylene.
    Type: Application
    Filed: June 11, 2008
    Publication date: November 11, 2010
    Applicant: SUMITOMO Electric Fine Polymer , Inc.
    Inventors: Kazuaki IKEDA, Nobutaka MATSUSHITA, Yoshimasa SUZUKI
  • Patent number: 6329042
    Abstract: A fluororesin coating composition comprising a dispersing medium and fluororesin particles dispersed therein, the dispersing medium mainly comprising a surfactant, and a coated article obtained using the coating composition.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: December 11, 2001
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Katsuya Yamada, Nobutaka Matsushita, Hideki Kashihara, Shigeyoshi Ohwaki, Tohru Kashiwagi, Makoto Nakabayashi, Masahiro Miyamoto
  • Patent number: 5985983
    Abstract: A fluororesin coating composition comprising a dispersing medium and fluororesin particles dispersed therein, the dispersing medium mainly comprising a surfactant, and a coated article obtained using the coating composition.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: November 16, 1999
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Katsuya Yamada, Nobutaka Matsushita, Hideki Kashihara, Shigeyoshi Ohwaki, Tohru Kashiwagi, Makoto Nakabayashi, Masahiro Miyamoto
  • Patent number: 5434001
    Abstract: A fluororesin-coated article having excellent corrosion resistance is disclosed, which comprises a base plate having a finely roughened surface and having thereon a layer of a fluororesin composition containing a fluororesin comprising a mixture of a heat-fusible fluororesin and PTFE, the content of the heat-fusible fluororesin in the mixture being 2% by weight or more but less than 12% by weight based on the total amount of the fluororesin. The fluororesin composition layer may contain an inorganic pigment in an amount of 1 to 25% by weight based on the total amount of solid components of the composition.
    Type: Grant
    Filed: August 10, 1993
    Date of Patent: July 18, 1995
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Katsuya Yamada, Masahiro Morita, Nobutaka Matsushita, Yoshichika Nishimura, Fumio Matsuyama
  • Patent number: 5223358
    Abstract: A fluororesin-coated material having markings indicated thereon is disclosed, which material comprises (1) a substrate having coated thereon a fluororesin composition comprising a high-molecular weight material having a benzene ring and at least one of a nitrogen atom, a sulfur atom and a carbonyl group in the main chain thereof, or (2) a substrate having coated thereon the high-molecular weight material, and further having coated on the high-molecular weight material a fluororesin composition. The markings are indicated on the coated material by irradiating the coated surface of the coated material with electromagnetic waves having a wavelength of 600 nm or less to thereby cause a change in the color of the high-molecular weight material at irradiated parts and provide a difference in color between the irradiated parts and unirradiated parts.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: June 29, 1993
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Katsuya Yamada, Masahiro Morita, Nobutaka Matsushita, Yoshichika Nishimura, Fumio Matsuyama
  • Patent number: 5106682
    Abstract: A fluororesin-coated article comprising an aluminum or aluminum alloy base having a surface which has been finely roughened by electrochemical etching or chemical etching;(1) a first fluororesin layer provided on the roughened surface of the base and containing an inorganic filler and a filler comprising a heat-resistant polymer; and(2) a second fluororesin layer provided on the first fluororesin layer and containing substantially no filler.
    Type: Grant
    Filed: March 22, 1990
    Date of Patent: April 21, 1992
    Assignee: Sumitomo Electric Industries Ltd.
    Inventors: Nobutaka Matsushita, Hideki Kashihara, Fumio Matsuyama, Katsuya Yamada
  • Patent number: 5009959
    Abstract: A fluorine resin coated article comprising a metal substrate coated with a composition comprising a fluorine resin containing (a) a polyamideimide resin, a polyimide resin, a polyphenylene sulfide resin, a polyethersulfone resin or a mixture thereof in an amount of at least 0.5 wt % based on the amount of the fluorine resin, and (b) mica in an amount of at least 0.5 wt % based on the amount of the fluorine resin.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: April 23, 1991
    Assignee: Sumitomo Electric Industries Ltd.
    Inventors: Nobutaka Matsushita, Hiroshi Okazaki, Shosuke Yamanouchi, Yoshitaka Osawa, Isao Tsujigaito