Patents by Inventor Yoshinori Nagasu

Yoshinori Nagasu 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: 10096403
    Abstract: A superconductive wire conductor is produced by: embedding a plurality of deposition substrates formed to have a predetermined size in parallel with each other to a connection base material to connect and integrate therewith; depositing an intermediate layer, a superconductive layer and a protective layer on a deposition surface side of the deposition substrate; and winding a single or multiple integrated superconductive conductors around a desired core material, separating each single superconductive wire from the integrated superconductive conductor and winding each superconductive wire around the core material or winding the integrated or separated wire alternately, whereby a superconductive conductor having a good superconductive characteristic without a problem regarding a shape thereof such as local protrusions.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: October 9, 2018
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventor: Yoshinori Nagasu
  • Patent number: 10068687
    Abstract: A superconductive wire conductor is produced by: embedding a plurality of deposition substrates formed to have a predetermined size in parallel with each other to a connection base material to connect and integrate therewith; depositing an intermediate layer, a superconductive layer and a protective layer on a deposition surface side of the deposition substrate; and winding a single or multiple integrated superconductive conductors around a desired core material, separating each single superconductive wire from the integrated superconductive conductor and winding each superconductive wire around the core material or winding the integrated or separated wire alternately, whereby a superconductive conductor having a good superconductive characteristic without a problem regarding a shape thereof such as local protrusions.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: September 4, 2018
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventor: Yoshinori Nagasu
  • Patent number: 9608191
    Abstract: A superconducting thin film having excellent critical current characteristics is provided. A substrate for a superconducting thin film includes a substrate body (10A) having a main surface (10B) in which the root mean square slope R?q of a roughness curve is 0.4 or less.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: March 28, 2017
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Masaru Higuchi, Hisaki Sakamoto, Yoshinori Nagasu
  • Patent number: 9508469
    Abstract: A peelable superconductive conductor comprising a superconductive conductor including a substrate and a superconducting layer which is formed on one principal surface of the substrate. The peelable superconductive conductor can further comprise a peelable carrier body, which is formed on a principal surface of the superconductive conductor on an opposite side of the surface on which the superconducting layer is formed.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: November 29, 2016
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yuko Okuno, Yoshikazu Okuno, Yoshinori Nagasu, Masaru Higuchi
  • Patent number: 9378869
    Abstract: A superconductive wire material substrate which is formed such that a surface roughness Ra of one surface is 10 nm or less, and a surface roughness Ra of an other surface is larger than the surface roughness Ra of the one surface, and is 8 nm or more and less than 15 nm, between the surface roughnesses Ra of both surfaces of the superconductive wire material substrate.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: June 28, 2016
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yoshinori Nagasu, Masaru Higuchi, Hisaki Sakamoto
  • Publication number: 20160027555
    Abstract: A superconductive wire conductor is produced by: embedding a plurality of deposition substrates formed into to have a predetermined size in parallel with each other to a connection base material to connect and integrate therewith; depositing an intermediate layer, a superconductive layer and a protective layer on a deposition surface side of the deposition substrate; and winding a single or multiple integrated superconductive conductors around a desired core material, separating each single superconductive wire from the integrated superconductive conductor and winding each superconductive wire around the core material or winding the integrated or separated wire alternately, whereby a superconductive conductor having a good superconductive characteristic without a problem regarding a shape thereof such as local protrusions.
    Type: Application
    Filed: February 5, 2014
    Publication date: January 28, 2016
    Inventor: Yoshinori NAGASU
  • Publication number: 20160027556
    Abstract: A peelable superconductive conductor comprising a superconductive conductor including a substrate and a superconducting layer which is formed on one principal surface of the substrate. The peelable superconductive conductor can further comprise a peelable carrier body, which is formed on a principal surface of the superconductive conductor on an opposite side of the surface on which the superconducting layer is formed.
    Type: Application
    Filed: February 5, 2014
    Publication date: January 28, 2016
    Inventors: Yuko OKUNO, Yoshikazu OKUNO, Yoshinori NAGASU, Masaru HIGUCHI
  • Patent number: 9014768
    Abstract: A method for producing a superconductive conductor includes: a base material preparation process of preparing a base material having a groove formed on at least one face thereof; a superconducting layer formation process of forming a superconducting layer on a surface of the base material at a side at which the groove is formed; and a cutting process of cutting completely through the base material along the groove.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: April 21, 2015
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Yoshinori Nagasu, Hisaki Sakamoto, Masaru Higuchi
  • Patent number: 9002424
    Abstract: A tape-shaped superconducting film-forming substrate is disclosed, which includes a film-forming face for forming a laminate including a superconducting layer thereon, a rear face that is a face at a side opposite to the film-forming face, a pair of end faces connected to the film-forming face and the rear face, and a pair of side faces connected to the film-forming face, the rear face, and the pair of end faces, in which each of the pair of side faces includes a spreading face that spreads toward an outer side in an in-plane direction of the film-forming face from an edge part of the film-forming face toward the rear face side. A superconducting wire and a superconducting wire manufacturing method are also disclosed.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: April 7, 2015
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Yoshinori Nagasu, Masaru Higuchi, Hisaki Sakamoto
  • Publication number: 20150038334
    Abstract: A tape-shaped superconducting film-forming substrate is disclosed, which includes a film-forming face for forming a laminate including a superconducting layer thereon, a rear face that is a face at a side opposite to the film-forming face, a pair of end faces connected to the film-forming face and the rear face, and a pair of side faces connected to the film-forming face, the rear face, and the pair of end faces, in which each of the pair of side faces includes a spreading face that spreads toward an outer side in an in-plane direction of the film-forming face from an edge part of the film-forming face toward the rear face side. A superconducting wire and a superconducting wire manufacturing method are also disclosed.
    Type: Application
    Filed: February 6, 2013
    Publication date: February 5, 2015
    Inventors: Yoshinori Nagasu, Masaru Higuchi, Hisaki Sakamoto
  • Publication number: 20150024942
    Abstract: A superconducting wire has: a substrate; a superconducting layer that is layered on one main surface side of the substrate; a stabilization layer that covers a surface of the superconducting layer and another main surface of the substrate; and an insulating layer that covers a surface of the stabilization layer, and that has an identification portion that identifies the substrate side and the superconducting layer side.
    Type: Application
    Filed: March 27, 2013
    Publication date: January 22, 2015
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yuko Hayase, Hiroyuki Fukushima, Hideyuki Hatakeyama, Yoshikazu Okuno, Yoshinori Nagasu, Masaru Higuchi, Hisaki Sakamoto
  • Publication number: 20130240246
    Abstract: Provided is a less expensive and high-performance superconductive wire material substrate, a method of manufacturing the less expensive and high-performance superconductive wire material substrate, and a superconductive wire material using the less expensive and high-performance superconductive wire material substrate. A superconductive wire material substrate 1 is formed such that a surface roughness Ra of one surface is 10 nm or less, and a surface roughness Ra of an other surface is larger than the surface roughness Ra of the one surface, and is 8 nm or more and less than 15 nm, between the surface roughnesses Ra of both surfaces of the superconductive wire material substrate 1.
    Type: Application
    Filed: November 15, 2011
    Publication date: September 19, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yoshinori Nagasu, Masaru Higuchi, Hisaki Sakamoto
  • Publication number: 20130137579
    Abstract: A method for producing a superconductive conductor includes: a base material preparation process of preparing a base material having a groove formed on at least one face thereof; a superconducting layer formation process of forming a superconducting layer on a surface of the base material at a side at which the groove is formed; and a cutting process of cutting completely through the base material along the groove.
    Type: Application
    Filed: August 2, 2012
    Publication date: May 30, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yoshinori Nagasu, Hisaki Sakamoto, Masaru Higuchi
  • Publication number: 20130137581
    Abstract: A superconducting thin film having excellent critical current characteristics is provided. A substrate for a superconducting thin film includes a substrate body (10A) having a main surface (10B) in which the root mean square slope R?q of a roughness curve is 0.4 or less.
    Type: Application
    Filed: July 2, 2012
    Publication date: May 30, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Masaru Higuchi, Hisaki Sakamoto, Yoshinori Nagasu
  • Publication number: 20120021917
    Abstract: Disclosed is a low-cost metal substrate which is resistant to high-temperature oxidation, has excellent strength, is non-magnetic and is ideal for a high-temperature superconducting wire to be used at or lower than liquid nitrogen temperature. Austenitic stainless steel containing 0.4 weight or more of nitrogen is used as the metal substrate for the superconducting wire. After heat treatment of 700 to 950° C. in the high-temperature superconducting layer formation step is carried out, the metal substrate has an extremely high 0.20 proof stress at liquid nitrogen temperature.
    Type: Application
    Filed: September 28, 2010
    Publication date: January 26, 2012
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Hisaki Sakamoto, Yoshinori Nagasu
  • Patent number: 5266416
    Abstract: An aluminum-stabilized superconducting wire includes a superconducting wire member obtained by burying a superconducting filament in a copper matrix and an aluminum stabilizing member covered in an outer surface of the superconducting wire member, and the aluminum stabilizing member is constituted by an aluminum alloy having a 0.2 % proof resistivity of 4 kg/mm.sup.2 or more at a very low temperature and a residual resistance ratio of 250 or more. It is preferable that the aluminum alloy contains at least one element selected from 50 to 1,000 ppm of Zn, 50 to 150 ppm of Si, 50 to 400 ppm of Ag, 50 to 300 ppm of Cu, and 30 to 2,000 ppm of Ce, and that a balance is constituted by Al and an inevitable impurity.
    Type: Grant
    Filed: February 11, 1992
    Date of Patent: November 30, 1993
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Itaru Inoue, Yoshinori Nagasu, Keizo Kosugi, Takuya Suzuki