Patents by Inventor Akira Setogawa

Akira Setogawa 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: 11270814
    Abstract: An insulated wire includes a conductor, and an insulation layer covering an outer periphery of the conductor. The insulation layer includes a halogen-free flame-retardant resin composition including a base polymer, not less than 1 part by mass and not more than 10 parts by mass of an amorphous silica and not less than 10 parts by mass and not more than 150 parts by mass of a halogen-free flame retardant relative to 100 parts by mass of the base polymer. The base polymer includes not less than 50 parts by mass and not more than 90 parts by mass of either an ethylene-vinyl acetate copolymer or an ethylene-butene copolymer and not less than 10 parts by mass and not more than 50 parts by mass of a low-density polyethylene.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: March 8, 2022
    Assignee: HITACHI METALS, LTD.
    Inventors: Akira Setogawa, Makoto Iwasaki
  • Publication number: 20190237215
    Abstract: Bendability of an insulated wire having a separator layer interposed between a conductor and an insulating layer is improved. The insulated wire has a conductor; a separator layer formed of separator tapes wound on the conductor; and an insulating layer arranged on a periphery of the separator layer. The separator tape is spirally wound so that width-directional parts of the separator tapes are overlapped with one another, and a plurality of overlapped portions at which the width-directional parts of the separator tapes are overlapped with one another to be three- or more-layered exist in a longitudinal direction of the conductor.
    Type: Application
    Filed: November 29, 2018
    Publication date: August 1, 2019
    Inventors: Akira SETOGAWA, Akinari NAKAYAMA
  • Publication number: 20180158571
    Abstract: An insulated wire includes a conductor, and an insulation layer covering an outer periphery of the conductor. The insulation layer includes a halogen-free flame-retardant resin composition including a base polymer, not less than 1 part by mass and not more than 10 parts by mass of an amorphous silica and not less than 10 parts by mass and not more than 150 parts by mass of a halogen-free flame retardant relative to 100 parts by mass of the base polymer. The base polymer includes not less than 50 parts by mass and not more than 90 parts by mass of either an ethylene-vinyl acetate copolymer or an ethylene-butene copolymer and not less than 10 parts by mass and not more than 50 parts by mass of a low-density polyethylene.
    Type: Application
    Filed: November 28, 2017
    Publication date: June 7, 2018
    Inventors: Akira SETOGAWA, Makoto IWASAKI
  • Patent number: 9905326
    Abstract: A semiconductive resin composition is composed of a base polymer including an ethylene-vinyl acetate copolymer with a vinyl acetate content of not lower than 60 percent by weight, two or more of fatty acid zinc, oleic acid bisamide and trimellitic acid ester, a peroxide-based crosslinking agent having a one hour half-life temperature of not lower than 130 degrees C., and a carbon having a DBP (dibutyl phthalate) adsorption capacity of not larger than 150 mg/g.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: February 27, 2018
    Assignee: HITACHI METALS, LTD.
    Inventors: Ryutaro Kikuchi, Akira Setogawa
  • Publication number: 20160148717
    Abstract: A semiconductive resin composition is composed of a base polymer including an ethylene-vinyl acetate copolymer with a vinyl acetate content of not lower than 60 percent by weight, two or more of fatty acid zinc, oleic acid bisamide and trimellitic acid ester, a peroxide-based crosslinking agent having a one hour half-life temperature of not lower than 130 degrees C., and a carbon having a DBP (dibutyl phthalate) adsorption capacity of not larger than 150 mg/g.
    Type: Application
    Filed: August 6, 2015
    Publication date: May 26, 2016
    Inventors: Ryutaro KIKUCHI, Akira Setogawa
  • Patent number: 8420938
    Abstract: There is provided a insulated electric wire with an electric conductor on which at least a lubricating layer is formed, in which a lubricant is added to the lubricating layer so that granular bodies, with sizes of 5 nm to 3 ?m, which are formed by coagulation of the lubricant disperse on a surface of the lubricating layer.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: April 16, 2013
    Assignees: Hitachi Cable, Ltd., Hitachi Magnet Wire Corp.
    Inventors: Akira Setogawa, Tomiya Abe, Yuji Takano
  • Patent number: 7932468
    Abstract: An insulated electric wire is composed of a conductor, and a lubricating layer containing a lubricant. The lubricating layer is formed around the perimeter of the conductor. The lubricating layer is not less than 0.06 and not more than 0.12 in an absorbance ratio A1/A2 expressed by an absorbance A1 of carbon-hydrogen stretching vibration and an absorbance A2 of benzene ring framework vibration, obtained by Fourier Transform Infrared Spectroscopy analysis of a surface of the lubricating layer.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: April 26, 2011
    Assignees: Hitachi Magnet Wire Corp., Hitachi Cable, Ltd.
    Inventors: Yuji Takano, Hideyuki Kikuchi, Takahiko Hanada, Kenji Asano, Tomiya Abe, Akira Setogawa
  • Publication number: 20100224406
    Abstract: There is provided a insulated electric wire with an electric conductor on which at least a lubricating layer is formed, in which a lubricant is added to the lubricating layer so that granular bodies, with sizes of 5 nm to 3 ?m, which are formed by coagulation of the lubricant disperse on a surface of the lubricating layer.
    Type: Application
    Filed: March 4, 2010
    Publication date: September 9, 2010
    Inventors: Akira SETOGAWA, Tomiya Abe, Yuji Takano
  • Publication number: 20100218972
    Abstract: An insulated electric wire is composed of a conductor, and a lubricating layer containing a lubricant. The lubricating layer is formed around the perimeter of the conductor. The lubricating layer is not less than 0.06 and not more than 0.12 in an absorbance ratio A1/A2 expressed by an absorbance A1 of carbon-hydrogen stretching vibration and an absorbance A2 of benzene ring framework vibration, obtained by Fourier Transform Infrared Spectroscopy analysis of a surface of the lubricating layer.
    Type: Application
    Filed: January 8, 2010
    Publication date: September 2, 2010
    Applicants: Hitachi Magnet Wire Corp., Hitachi Cable, Ltd.
    Inventors: Yuji TAKANO, Hideyuki KIKUCHI, Takahiko HANADA, Kenji ASANO, Tomiya ABE, Akira SETOGAWA
  • Publication number: 20080213601
    Abstract: A high-water-repellency and high-slidability coating member according to the present invention comprises a base material and a silica coating film made of silica and silane hybrid modified fluororesin, wherein the silica coating film is applied to a surface of the base material.
    Type: Application
    Filed: March 3, 2008
    Publication date: September 4, 2008
    Inventors: Yasuaki YAMAMOTO, Akira SETOGAWA