Patents by Inventor Takashi Aizawa

Takashi Aizawa 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: 11468910
    Abstract: A tape-like magnetic recording medium includes a reinforced substrate, and a recording layer arranged on the reinforced substrate, and the reinforced substrate includes a substrate that has a first face and a second face opposed to each other, and has an average thickness of 4 ?m or smaller, and a metal layer that contains cobalt, arranged on the first face, the reinforced substrate by itself causing thereon a depth of indentation of 0.25 ?m or shallower, when a 0.7-mm-diameter hard sphere is impressed against the second face under 5.0 gf load for 10 seconds.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: October 11, 2022
    Assignee: Sony Corporation
    Inventors: Hiroto Atagi, Noboru Sekiguchi, Takashi Aizawa, Tomoe Ozaki, Koji Suzuki, Yoichi Kanemaki, Teruo Sai, Ryoichi Hiratsuka, Kazuya Hashimoto
  • Patent number: 11456689
    Abstract: According to one embodiment, a driving device includes a voltage controller, a parameter setter, and a phase adjuster. The voltage controller causes an electric power converter to apply a drive voltage to the electric motor, the electric power converter converting input electric power to A/C electric power having desired voltage and frequency and supplying the converted electric power to an electric motor. The parameter setter sets at least one of a rotation speed of the electric motor and a parameter related to the rotation speed as speed information. The phase adjuster adjusts a phase of the drive voltage in such a manner that an index calculated based on a current flowing in the electric motor and the speed information set in the parameter setter becomes smaller.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: September 27, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Electronic Devices & Storage Corporation
    Inventors: Takashi Takagi, Toshimitsu Aizawa, Shen Wang
  • Publication number: 20220271399
    Abstract: According to an embodiment, a battery includes an exterior container, a lid member, a plurality of electrode groups, a first lead, a second lead, and an electrode terminal. The lid member closes an opening of an inner cavity of the exterior container, and the plurality of electrode groups are stored in the inner cavity. A first current collecting tab protruding toward the lid member in a first electrode is joined with the first lead, and a second current collecting tab protruding toward the lid member in the second electrode different from the first electrode is joined with the second lead separate from the first lead. The first and second leads are together connected to the electrode terminal exposed on an outer surface of the lid member.
    Type: Application
    Filed: September 13, 2021
    Publication date: August 25, 2022
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akira TOJO, Takahiro AIZAWA, Takashi ITO, Masatoshi TANABE, Yasunari UKITA
  • Patent number: 11370180
    Abstract: An ultrasonic bonding apparatus includes a sensor that detects vibration along a height direction in a bonding target member which vibrates by ultrasonic vibration. The ultrasonic bonding apparatus includes a control device that changes control parameters associated with the driving of a bonding tool based on information related to the vibration along the height direction detected by the sensor.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: June 28, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takahiro Aizawa, Takashi Ito, Masatoshi Tanabe, Haruka Yamamoto
  • Patent number: 11365276
    Abstract: To provide a block copolymer that includes an aromatic vinyl compound polymer and a chloroprene polymer, has a number average molecular weight of 100,000 or more, is preferred for a rubber composition and an adhesive composition, and is suitable for industrial production. A block copolymer includes at least one aromatic vinyl compound polymer block and at least one chloroprene polymer block, has a functional group with a structure represented by Chemical Formula (1) or (2), and has a number average molecular weight of 100,000 or more. The chloroprene polymer block has a number average molecular weight of 80,000 or more in total. (In Chemical Formula (1), R1 is hydrogen, chlorine, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclyl group.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: June 21, 2022
    Assignee: DENKA COMPANY LIMITED
    Inventors: Wataru Nishino, Yuhei Ishigaki, Takashi Aizawa, Shogo Hagiwara, Uichiro Yamagishi
  • Publication number: 20220108723
    Abstract: A tape-like magnetic recording medium includes a reinforced substrate, and a recording layer arranged on the reinforced substrate, and the reinforced substrate includes a substrate that has a first face and a second face opposed to each other, and has an average thickness of 4 ?m or smaller, and a metal layer that contains cobalt, arranged on the first face, the reinforced substrate by itself causing thereon a depth of indentation of 0.25 ?m or shallower, when a 0.7-mm-diameter hard sphere is impressed against the second face under 5.0 gf load for 10 seconds.
    Type: Application
    Filed: August 29, 2019
    Publication date: April 7, 2022
    Inventors: Hiroto ATAGI, Noboru SEKIGUCHI, Takashi AIZAWA, Tomoe OZAKI, Koji SUZUKI, Yoichi KANEMAKI, Teruo SAI, Ryoichi HIRATSUKA, Kazuya HASHIMOTO
  • Patent number: 11232813
    Abstract: A film-forming apparatus and a method for manufacturing a magnetic recording medium are provided. The film-forming apparatus includes a rotating body which moves a base material with a strip shape which has flexibility, a plurality of cathodes which are provided to oppose a rotating surface of the rotating body; and a plurality of accommodating sections which accommodate each of the plurality of cathodes. The method includes sequentially film-forming a plurality of thin films on a base material using a plurality of cathodes which are provided on a moving path of the base material while moving the base material with a strip shape which has flexibility. Each of the plurality of cathodes is accommodated in a plurality of accommodating sections.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: January 25, 2022
    Assignee: Sony Corporation
    Inventors: Takashi Aizawa, Atsuhiro Abe
  • Publication number: 20210249045
    Abstract: A magnetic recording medium is provided and includes a magnetic layer, a non-magnetic layer, a base layer and a back layer, wherein an average thickness tT of the magnetic recording medium is tT?5.3 a dimensional change amount ?w in a width direction with respect to a change in tension in a longitudinal direction is 700 ppm/N??w, a thickness of the non-magnetic layer is 2.0 ?m or less, a squareness ratio measured in a vertical direction of the magnetic recording medium is 65% or more, and the magnetic layer includes a magnetic powder.
    Type: Application
    Filed: April 6, 2021
    Publication date: August 12, 2021
    Inventors: Minoru YAMAGA, Noboru SEKIGUCHI, Tooru SATO, Takashi AIZAWA
  • Patent number: 11056143
    Abstract: A magnetic recording medium is provided and includes a magnetic layer, a non-magnetic layer, a base layer and a back layer, wherein an average thickness tT of the magnetic recording medium is tT?5.3 ?m, a dimensional change amount ?w in a width direction with respect to a change in tension in a longitudinal direction is 700 ppm/N??w, a thickness of the non-magnetic layer is 2.0 ?m or less, a squareness ratio measured in a vertical direction of the magnetic recording medium is 65% or more, and the magnetic layer includes a magnetic powder.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: July 6, 2021
    Assignee: Sony Corporation
    Inventors: Minoru Yamaga, Noboru Sekiguchi, Tooru Sato, Takashi Aizawa
  • Patent number: 10937457
    Abstract: There is provided a magnetic recording medium of which an average thickness tT is tT?5.6 ?m, a dimensional change amount ?w in a width direction with respect to a change in tension in a longitudinal direction is 660 ppm/N??w, a squareness ratio in a vertical direction is 65% or more, and a width deformation coefficient b during long-term storage in a case where a long-term storage width change amount Y is defined as Y=blog(t) is ?0.06 ?m?b?0.06 ?m.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: March 2, 2021
    Assignee: Sony Corporation
    Inventors: Minoru Yamaga, Noboru Sekiguchi, Tooru Sato, Takashi Aizawa
  • Publication number: 20200342904
    Abstract: There is provided a magnetic recording medium of which an average thickness tT is tT?5.6 ?, a dimensional change amount ?w in a width direction with respect to a change in tension in a longitudinal direction is 660 ppm/N??w, a squareness ratio in a vertical direction is 65% or more, and a width deformation coefficient b during long-term storage in a case where a long-term storage width change amount Y is defined as Y=blog(t) is ?0.06 ?m?b?0.06 ?.
    Type: Application
    Filed: July 12, 2019
    Publication date: October 29, 2020
    Inventors: Minoru YAMAGA, Noboru SEKIGUCHI, Tooru SATO, Takashi AIZAWA
  • Publication number: 20200342905
    Abstract: A magnetic recording medium is provided and includes a magnetic layer, a non-magnetic layer, a base layer and a back layer, wherein an average thickness tT of the magnetic recording medium is tT?5.3 ?m, a dimensional change amount ?w in a width direction with respect to a change in tension in a longitudinal direction is 700 ppm/N??w, a thickness of the non-magnetic layer is 2.0 ?m or less, a squareness ratio measured in a vertical direction of the magnetic recording medium is 65% or more, and the magnetic layer includes a magnetic powder.
    Type: Application
    Filed: December 4, 2019
    Publication date: October 29, 2020
    Inventors: Minoru YAMAGA, Noboru SEKIGUCHI, Tooru SATO, Takashi AIZAWA
  • Patent number: 10789979
    Abstract: A magnetic recording medium includes: an elongated substrate having flexibility; a first layer, being provided on the substrate, containing Cr, Ni, and Fe, and having a face-centered cubic lattice structure with a (111) plane preferentially oriented so as to be parallel to a surface of the substrate; a second layer, being provided on the first layer, containing Co and O, having a ratio of an average atomic concentration of O to an average atomic concentration of Co of 1 or more, and having a column structure with an average particle diameter of 3 nm or more and 13 nm or less; a third layer, being provided on the second layer, and containing Ru; and a perpendicular recording layer, being provided on the third layer.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: September 29, 2020
    Assignee: Sony Corporation
    Inventors: Junichi Tachibana, Tetsuo Endo, Tomoe Ozaki, Takashi Aizawa
  • Publication number: 20200075051
    Abstract: A magnetic recording medium includes: a flexible and elongated substrate; a soft magnetic layer having an average thickness of 10 nm or more to 50 nm or less; and a recording layer, in which the soft magnetic layer is disposed between the substrate and the recording layer, and a difference in Young's modulus between the magnetic recording medium and the substrate in a longitudinal direction of the substrate is 2.4 GPa or more.
    Type: Application
    Filed: April 6, 2018
    Publication date: March 5, 2020
    Inventors: JUNICHI TACHIBANA, TAKASHI AIZAWA, TERUO SAI, NOBORU SEKIGUCHI, TETSUO ENDO, TOMOE OZAKI, RYOICHI HIRATSUKA
  • Patent number: 10580447
    Abstract: A magnetic recording medium has a recording surface having an average surface roughness SRa of 3.0 nm or less, the number of projections having a height of 7.5 nm or more included in a unit region (where the unit region is a square region with each side having a length of 30 ?m) of the recording surface is 256 or more, and the number of projections having a height of 15 nm or more included in the unit region of the recording surface is 0 or more and 104 or less.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: March 3, 2020
    Assignee: Sony Corporation
    Inventors: Noboru Sekiguchi, Tomoe Ozaki, Tetsuo Endo, Takashi Aizawa, Junichi Tachibana, Hikaru Terui, Teruo Sai
  • Publication number: 20190389994
    Abstract: To provide a block copolymer that includes an aromatic vinyl compound polymer and a chloroprene polymer, has a number average molecular weight of 100,000 or more, is preferred for a rubber composition and an adhesive composition, and is suitable for industrial production. A block copolymer includes at least one aromatic vinyl compound polymer block and at least one chloroprene polymer block, has a functional group with a structure represented by Chemical Formula (1) or (2), and has a number average molecular weight of 100,000 or more. The chloroprene polymer block has a number average molecular weight of 80,000 or more in total.
    Type: Application
    Filed: March 29, 2018
    Publication date: December 26, 2019
    Inventors: Wataru NISHINO, Yuhei ISHIGAKI, Takashi AIZAWA, Shogo HAGIWARA, Uichiro YAMAGISHI
  • Publication number: 20190297933
    Abstract: A method of producing a thickened carbonated beverage packed in a container, comprising: mixing an aqueous solution containing a first thickening agent and having a temperature of 0 to 35° C. with a second thickening agent insoluble in water in a temperature range of 0 to 35° C. but soluble in water at a temperature of 60° C. or more to obtain a stock liquid with the second thickening agent dispersed in the solution; dissolving carbon dioxide gas in the stock liquid to obtain a carbonated aqueous solution; filling a container with the carbonated aqueous solution and sealing the container to obtain the carbonated aqueous solution packed in the container; and heating the carbonated aqueous solution packed in the container such that the carbonated aqueous solution has a temperature of 60° C. or more to dissolve the second thickening agent in the solution.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 3, 2019
    Inventors: Hiroshi Batori, Hiroshi Endou, Yoshinari Suganuma, Takashi Aizawa
  • Patent number: 10311908
    Abstract: A magnetic recording medium includes a flexible substrate, an amorphous seed layer, an under layer containing Ru, and a recording layer having a granular structure. The seed layer is provided between the substrate and the under layer. The under layer has a thickness in a range of 5 to 50 nm.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: June 4, 2019
    Assignee: Sony Corporation
    Inventor: Takashi Aizawa
  • Publication number: 20190080712
    Abstract: A magnetic recording medium includes: an elongated substrate having flexibility; a first layer, being provided on the substrate, containing Cr, Ni, and Fe, and having a face-centered cubic lattice structure with a (111) plane preferentially oriented so as to be parallel to a surface of the substrate; a second layer, being provided on the first layer, containing Co and O, having a ratio of an average atomic concentration of O to an average atomic concentration of Co of 1 or more, and having a column structure with an average particle diameter of 3 nm or more and 13 nm or less; a third layer, being provided on the second layer, and containing Ru; and a perpendicular recording layer, being provided on the third layer.
    Type: Application
    Filed: November 16, 2016
    Publication date: March 14, 2019
    Inventors: Junichi TACHIBANA, Tetsuo ENDO, Tomoe OZAKI, Takashi AIZAWA
  • Publication number: 20180366150
    Abstract: A film-forming apparatus and a method for manufacturing a magnetic recording medium are provided. The film-forming apparatus includes a rotating body which moves a base material with a strip shape which has flexibility, a plurality of cathodes which are provided to oppose a rotating surface of the rotating body; and a plurality of accommodating sections which accommodate each of the plurality of cathodes. The method includes sequentially film-forming a plurality of thin films on a base material using a plurality of cathodes which are provided on a moving path of the base material while moving the base material with a strip shape which has flexibility. Each of the plurality of cathodes is accommodated in a plurality of accommodating sections.
    Type: Application
    Filed: August 2, 2018
    Publication date: December 20, 2018
    Inventors: Takashi AIZAWA, Atsuhiro ABE