Patents by Inventor Taichiro Nishikawa

Taichiro Nishikawa 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: 10553328
    Abstract: An aluminum alloy wire is composed of an aluminum alloy. The aluminum alloy contains equal to or more than 0.005 mass % and equal to or less than 2.2 mass % of Fe, and a remainder of Al and an inevitable impurity. In a transverse section of the aluminum alloy wire, a surface-layer crystallization measurement region in a shape of a rectangle having a short side length of 50 ?m and a long side length of 75 ?m is defined within a surface layer region extending from a surface of the aluminum alloy wire by 50 ?m in a depth direction, and an average area of crystallized materials in the surface-layer crystallization measurement region is equal to or more than 0.05 ?m2 and equal to or less than 3 ?m2.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: February 4, 2020
    Assignees: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Misato Kusakari, Tetsuya Kuwabara, Yoshihiro Nakai, Taichiro Nishikawa, Yasuyuki Otsuka, Hayato Ooi
  • Publication number: 20200035377
    Abstract: Provided are: a copper alloy wire having an excellent electrical conductivity, a high strength, and an excellent elongation; a copper alloy stranded wire including the copper alloy wire; an electric wire including the copper alloy wire or the copper alloy stranded wire as a conductor; a terminal-fitted electric wire including the aforementioned electric wire; and a method of manufacturing a copper alloy wire. The copper alloy wire has a composition including: not less than 0.2% by mass and not more than 1% by mass of Mg; not less than 0.02% by mass and not more than 0.1% by mass of P; and the balance including Cu and inevitable impurities. The copper alloy wire has an electrical conductivity of not less than 60% IACS, a tensile strength of not less than 400 MPa, and an elongation at breakage of not less than 5%.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 30, 2020
    Applicants: Sumitomo Electric Industries, Ltd., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Akiko Inoue, Tetsuya Kuwabara, Yoshihiro Nakai, Taichiro Nishikawa, Hiroyuki Kobayashi
  • Patent number: 10522263
    Abstract: An aluminum alloy wire composed of an aluminum alloy, wherein the aluminum alloy contains more than or equal to 0.03 mass % and less than or equal to 1.5 mass % of Mg, more than or equal to 0.02 mass % and less than or equal to 2.0 mass % of Si, and a remainder of Al and an inevitable impurity, Mg/Si being more than or equal to 0.5 and less than or equal to 3.5 in mass ratio, and the aluminum alloy wire has a dynamic friction coefficient of less than or equal to 0.8.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: December 31, 2019
    Assignees: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Misato Kusakari, Tetsuya Kuwabara, Yoshihiro Nakai, Taichiro Nishikawa, Yasuyuki Otsuka, Hayato Ooi
  • Patent number: 10515734
    Abstract: An aluminum alloy wire is composed of an aluminum alloy. The aluminum alloy contains equal to or more than 0.005 mass % and equal to or less than 2.2 mass % of Fe, and a remainder of Al and an inevitable impurity. In a transverse section of the aluminum alloy wire, a surface-layer crystallization measurement region in a shape of a rectangle having a short side length of 50 ?m and a long side length of 75 ?m is defined within a surface layer region extending from a surface of the aluminum alloy wire by 50 ?m in a depth direction, and an average area of crystallized materials in the surface-layer crystallization measurement region is equal to or more than 0.05 ?m2 and equal to or less than 3 ?m2.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: December 24, 2019
    Assignees: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Misato Kusakari, Tetsuya Kuwabara, Yoshihiro Nakai, Taichiro Nishikawa, Yasuyuki Otsuka, Hayato Ooi
  • Publication number: 20190360074
    Abstract: A covered electrical wire comprising a conductor and an insulating covering layer provided outside the conductor, the conductor being a stranded wire composed of a strand of a plurality of copper alloy wires: composed of a copper alloy containing Fe in an amount of 0.2% by mass or more and 1.5% by mass or less, P in an amount of 0.05% by mass or more and 0.7% by mass or less, Mg in an amount of 0.01% by mass or more and 0.5% by mass or less, and one or more elements selected from C, Si and Mn in an amount of 10 ppm by mass or more and 500 ppm by mass or less in total, with the balance being Cu and impurities; and having a wire diameter of 0.5 mm or less.
    Type: Application
    Filed: November 2, 2017
    Publication date: November 28, 2019
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Kei Sakamoto, Akiko Inoue, Tetsuya Kuwabara, Yoshihiro Nakai, Kazuhiro Nanjo, Kiyotaka Utsunomiya, Taichiro Nishikawa, Minoru Nakamoto, Yusuke Oshima, Yasuyuki Otsuka, Kinji Taguchi, Hiroyuki Kobayashi
  • Publication number: 20190355489
    Abstract: A covered electrical wire comprising a conductor and an insulating covering layer provided outside the conductor, the conductor being a stranded wire composed of a strand of a plurality of copper alloy wires: composed of a copper alloy containing Fe in an amount of 0.1% by mass or more and 1.6% by mass or less, Pin an amount of 0.05% by mass or more and 0.7% by mass or less, and Sn in an amount of 0.05% by mass or more and 0.7% by mass or less, with the balance being Cu and impurities; and having a wire diameter of 0.5 mm or less, the copper alloy wire having a tensile strength of 385 MPa or more and a work-hardening exponent of 0.1 or more.
    Type: Application
    Filed: June 21, 2017
    Publication date: November 21, 2019
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Kei SAKAMOTO, Akiko INOUE, Tetsuya KUWABARA, Minoru NAKAMOTO, Yusuke OSHIMA, Yoshihiro NAKAI, Kazuhiro NANJO, Taichiro NISHIKAWA, Kiyotaka UTSUNOMIYA, Yasuyuki OOTSUKA, Kinji TAGUCHI, Hiroyuki KOBAYASHI
  • Publication number: 20190341164
    Abstract: A covered electrical wire comprises a conductor and an insulating covering layer provided outside the conductor, the conductor being a stranded wire composed of a strand of a plurality of copper alloy wires: composed of a copper alloy containing Fe in an amount of 0.2% by mass or more and 1.6% by mass or less, P in an amount of 0.05% by mass or more and 0.4% by mass or less, and Sn in an amount of 0.05% by mass or more and 0.7% by mass or less, with the balance being Cu and impurities, and having a mass ratio of Fe/P of 4.0 or more; and having a wire diameter of 0.5 mm or less.
    Type: Application
    Filed: December 28, 2016
    Publication date: November 7, 2019
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Kei Sakamoto, Akiko Inoue, Tetsuya Kuwabara, Minoru Nakamoto, Yusuke Oshima, Yoshihiro Nakai, Kazuhiro Nanjyo, Taichiro Nishikawa, Kiyotaka Utsunomiya, Yasuyuki Ootsuka, Kinji Taguchi, Hiroyuki Kobayashi
  • Publication number: 20190292632
    Abstract: An aluminum alloy wire composed of an aluminum alloy, wherein the aluminum alloy contains more than or equal to 0.005 mass % and less than or equal to 2.2 mass % of Fe and a remainder of Al and an inevitable impurity, and the aluminum alloy wire has a dynamic friction coefficient of less than or equal to 0.8.
    Type: Application
    Filed: August 28, 2017
    Publication date: September 26, 2019
    Applicants: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Misato KUSAKARI, Tetsuya KUWABARA, Yoshihiro NAKAI, Taichiro NISHIKAWA, Yasuyuki OTSUKA, Hayato OOI
  • Publication number: 20190267151
    Abstract: An aluminum alloy wire is composed of an aluminum alloy. The aluminum alloy contains equal to or more than 0.005 mass % and equal to or less than 2.2 mass % of Fe, and a remainder of Al and an inevitable impurity. In a transverse section of the aluminum alloy wire, a surface-layer crystallization measurement region in a shape of a rectangle having a short side length of 50 ?m and a long side length of 75 ?m is defined within a surface layer region extending from a surface of the aluminum alloy wire by 50 ?m in a depth direction, and an average area of crystallized materials in the surface-layer crystallization measurement region is equal to or more than 0.05 ?m2 and equal to or less than 3 ?m2.
    Type: Application
    Filed: August 28, 2017
    Publication date: August 29, 2019
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Misato KUSAKARI, Tetsuya KUWABARA, Yoshihiro NAKAI, Taichiro NISHIKAWA, Yasuyuki OTSUKA, Hayato OOI
  • Publication number: 20190267152
    Abstract: An aluminum alloy wire composed of an aluminum alloy, wherein the aluminum alloy contains more than or equal to 0.03 mass % and less than or equal to 1.5 mass % of Mg, more than or equal to 0.02 mass % and less than or equal to 2.0 mass % of Si, and a remainder of Al and an inevitable impurity, Mg/Si being more than or equal to 0.5 and less than or equal to 3.5 in mass ratio, and the aluminum alloy wire has a dynamic friction coefficient of less than or equal to 0.8.
    Type: Application
    Filed: August 28, 2017
    Publication date: August 29, 2019
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Misato Kusakari, Tetsuya Kuwabara, Yoshihiro Nakai, Taichiro Nishikawa, Yasuyuki Otsuka, Hayato Ooi
  • Publication number: 20190259508
    Abstract: A connector terminal wire contains 0.1% by mass or more and 1.5% by mass or less of Fe, 0.02% by mass or more and 0.7% by mass or less of P, and 0% by mass or more and 0.7% by mass or less, in total, of at least one of Sn and Mg, with the balance being Cu and impurities.
    Type: Application
    Filed: September 12, 2017
    Publication date: August 22, 2019
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC TOYAMA CO., LTD.
    Inventors: Akiko Inoue, Kei Sakamoto, Tetsuya Kuwabara, Taichiro Nishikawa, Kiyotaka Utsunomiya, Minoru Nakamoto, Yusuke Oshima, Yoshihiro Nakai, Kazuhiro Nanjo, Hitoshi Tsuchida, Dai Kamogawa
  • Publication number: 20190066864
    Abstract: A covered electric wire comprises an insulating coating layer on the outer side of a conductor. The conductor comprises a copper alloy consisting of: not less than 0.05% by mass and not more than 2.0% by mass of Fe; not less than 0.02% by mass and not more than 1.0% by mass of Ti; not less than 0% by mass and not more than 0.6% by mass of Mg; and the balance being Cu and impurities. The covered electric wire is a stranded wire comprising a plurality of copper alloy wires stranded together. The plurality of copper alloy wires each have a work hardening coefficient of not less than 0.1 and a wire diameter of not more than 0.5 mm.
    Type: Application
    Filed: January 20, 2017
    Publication date: February 28, 2019
    Inventors: Akiko Inoue, Kei Sakamoto, Tetsuya Kuwabara, Taichiro Nishikawa, Kiyotaka Utsunomiya, Yusuke Oshima, Yasuyuki Ootsuka, Kinji Taguchi, Hiroyuki Kobayashi, Ryoma Uegaki
  • Publication number: 20190048450
    Abstract: A wire material for a connector terminal contains 0.1% to 1.5% by mass of Fe, 0.05% to 0.7% by mass of Ti, and 0% to 0.5% by mass of Mg, with the balance being Cu and impurities.
    Type: Application
    Filed: February 16, 2017
    Publication date: February 14, 2019
    Inventors: Kei Sakamoto, Akiko Inoue, Tetsuya Kuwabara, Taichiro Nishikawa, Kiyotaka Utsunomiya, Minoru Nakamoto, Yusuke Oshima, Hitoshi Tsuchida, Dai Kamogawa
  • Patent number: 10128018
    Abstract: A copper alloy wire can be used as a conductor. The copper alloy wire is made of a copper alloy containing: not less than 0.4 mass % and not more than 1.5 mass % of Fe; not less than 0.1 mass % and not more than 0.7 mass % of Ti; not less than 0.02 mass % and not more than 0.15 mass % of Mg; not less than 10 mass ppm and not more than 500 mass ppm in total of C and at least one of Si and Mn; and the balance of Cu and impurities. The copper alloy wire has a wire diameter of not more than 0.5 mm. Preferably, a mass ratio Fe/Ti in the copper alloy is not less than 1.0 and not more than 5.5.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: November 13, 2018
    Assignees: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Akiko Inoue, Tetsuya Kuwabara, Taichiro Nishikawa, Kiyotaka Utsunomiya, Hiroshi Fujita, Yasuyuki Ootsuka, Hiroyuki Kobayashi
  • Patent number: 9972411
    Abstract: An object of the present invention is to provide an ultrafine copper alloy being high in strength and conductivity and being also superior in elongation, a copper alloy stranded wire, a covered electric wire including the copper alloy wire or copper alloy stranded wire, and a terminal-fitted electric wire. A copper alloy wire used as a conductor, the copper alloy wire containing greater than or equal to 0.4% by mass and less than or equal to 1.5% by mass of Fe, greater than or equal to 0.1% by mass and less than or equal to 1.0% by mass of Ti, and the remainder including Cu and an impurity.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: May 15, 2018
    Assignees: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Akiko Inoue, Taichiro Nishikawa, Tetsuya Kuwabara, Misato Kusakari, Hiroyuki Kobayashi
  • Patent number: 9943904
    Abstract: A magnesium alloy material such as a magnesium alloy cast material or a magnesium alloy rolled material, excellent in mechanical characteristics and surface precision, a producing method capable of stably producing such material, a magnesium alloy formed article utilizing the rolled material, and a producing method therefor. The magnesium material includes a melting step of melting a magnesium alloy in a melting furnace to obtain a molten metal, a transfer step of transferring the molten metal from the melting furnace to a molten metal reservoir, and a casting step of supplying a movable mold with the molten metal from the molten metal reservoir, through a pouring gate, and solidifying the molten metal to continuously produce a cast material. Parts are formed by a low-oxygen material having an oxygen content of 20 mass % or less. The cast material is given a thickness of from 0.1 to 10 mm.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: April 17, 2018
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Masatada Numano, Yoshihiro Nakai, Toshiya Ikeda, Taichiro Nishikawa
  • Patent number: 9702838
    Abstract: A sample composed of a nickel-based metal is immersed in a corrosive solution (aqueous solution containing an acid and sodium chloride). The sample that has been immersed in the corrosive solution is exposed to a flame of engine oil, and further heated. By immersing the sample in the particular corrosive solution, a Ni-enriched phase which is deficient in additional elements and in which the Ni concentration increases is formed in a surface layer region of the sample. By exposing the sample having the Ni-enriched phase to the flame of the engine oil, components in the engine oil are activated and brought into contact with the sample to form a low-melting point phase in the surface layer region of the sample. By heating the sample having the low-melting point phase to melt the low-melting point phase and resolidifying the low-melting point phase, particles and the like can be formed depending on the type of material of the sample.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: July 11, 2017
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hajime Ota, Taichiro Nishikawa, Kazuo Yamazaki, Masao Sakuta, Takeshi Tokuda
  • Publication number: 20170098487
    Abstract: An aluminum (Al) alloy wire, which is an extra fine wire having a wire diameter of 0.5 mm or less, contains, in mass %, Mg at 0.03% to 1.5%, Si at 0.02% to 2.0%, at least one element selected from Cu, Fe, Cr, Mn and Zr at a total of 0.1% to 1.0% and the balance being Al and impurities, and has an electrical conductivity of 40% IACS or more, a tensile strength of 150 MPa or more, and an elongation of 5% or more. By producing the extra fine wire from an Al alloy of a specific composition containing Zr, Mn and other specific elements, though the extra fine wire is extra fine, it has a fine structure with a maximum grain size of 50 ?m or less and is superior in elongation.
    Type: Application
    Filed: December 22, 2016
    Publication date: April 6, 2017
    Inventors: Hiroyuki KOBAYASHI, Yoshihiro NAKAI, Taichiro NISHIKAWA, Yoshiyuki TAKAKI, Misato KUSAKARI, Yasuyuki OTSUKA
  • Patent number: 9564254
    Abstract: An aluminum (Al) alloy wire, which is an extra fine wire having a wire diameter of 0.5 mm or less, contains, in mass %, Mg at 0.03% to 1.5%, Si at 0.02% to 2.0%, at least one element selected from Cu, Fe, Cr, Mn and Zr at a total of 0.1% to 1.0% and the balance being Al and impurities, and has an electrical conductivity of 40% IACS or more, a tensile strength of 150 MPa or more, and an elongation of 5% or more. By producing the extra fine wire from an Al alloy of a specific composition containing Zr, Mn and other specific elements, though the extra fine wire is extra fine, it has a fine structure with a maximum grain size of 50 ?m or less and is superior in elongation.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: February 7, 2017
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Hiroyuki Kobayashi, Yoshihiro Nakai, Taichiro Nishikawa, Yoshiyuki Takaki, Misato Kusakari, Yasuyuki Otsuka
  • Patent number: 9556501
    Abstract: A magnesium-based composite member is provided with a through hole through which a fastening member for attachment to a fixing target is to be inserted. A substrate is provided with a substrate hole through which the fastening member is to be inserted, and made of a composite material which is a composite of SiC and a matrix metal which is any of magnesium and a magnesium alloy. A receiving portion is attached to the substrate and made of a metal material different from the matrix metal. The receiving portion is provided with a receiving portion hole through which the fastening member is to be inserted, and at least a part of an inner circumferential surface of the through hole is formed from an inner circumferential surface of the receiving portion hole.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: January 31, 2017
    Assignees: Sumitomo Electric Industries, Ltd., A.L.M.T. Corp
    Inventors: Isao Iwayama, Taichiro Nishikawa, Yoshiyuki Takaki, Toshiya Ikeda, Shigeki Koyama