Patents by Inventor Yasuharu MUTO

Yasuharu MUTO 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: 10225967
    Abstract: A noise suppression cable includes an insulated electric wire including an insulator that covers an outer periphery of a conductor wire, and a magnetic tape layer formed by transversely winding a magnetic tape on an outer periphery of the insulated electric wire. A magnetic body constituting the magnetic tape is cut out from a rolled material in such a manner that a width direction of the magnetic tape corresponds to a rolled direction, and the magnetic body has a magnetic property that is different between the width direction and an orthogonal direction to the width direction.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: March 5, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Katsutoshi Nakatani, Kenji Ajima, Yosuke Sumi, Katsuya Akimoto, Naofumi Chiwata, Hiroshi Okikawa, Yasuharu Muto
  • Patent number: 9679688
    Abstract: A shield cable includes an insulated electrical cable of a conductor wire sheathed about the circumference by an insulator, and a magnetic tape layer formed by wrapping magnetic tape about the circumference of the insulated electrical cable. The magnetic tape is a magnetic tape shaped by continuously cutting to constant width an elongated sheet comprising a magnetic material. The magnetic tape, on at least the insulated electrical cable-facing surface thereof, has grooves extending in the lengthwise direction, for accommodating at least one of pairs of burrs that are formed at both widthwise edge surfaces during cutting of the elongated sheet.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: June 13, 2017
    Assignee: Hitachi Metals, Ltd.
    Inventors: Katsuya Akimoto, Naofumi Chiwata, Yosuke Sumi, Katsutoshi Nakatani, Kenji Ajima, Hiroshi Okikawa, Yasuharu Muto
  • Publication number: 20170020037
    Abstract: A noise suppression cable includes an insulated electric wire including an insulator that covers an outer periphery of a conductor wire, and a magnetic tape layer formed by transversely winding a magnetic tape on an outer periphery of the insulated electric wire. A magnetic body constituting the magnetic tape is cut out from a rolled material in such a manner that a width direction of the magnetic tape corresponds to a rolled direction, and the magnetic body has a magnetic property that is different between the width direction and an orthogonal direction to the width direction.
    Type: Application
    Filed: March 25, 2015
    Publication date: January 19, 2017
    Inventors: Katsutoshi NAKATANI, Kenji AJIMA, Yosuke SUMI, Katsuya AKIMOTO, Naofumi CHIWATA, Hiroshi OKIKAWA, Yasuharu MUTO
  • Patent number: 9530542
    Abstract: A shielded cable includes an insulated wire including a conductor wire and an insulation formed around the conductor wire, and a shield layer formed around the insulated wire and including a shield wire. The shield wire includes a tubular member including a conductive material and defining a gap therein, and a magnetic powder is filled in the gap.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: December 27, 2016
    Assignee: HITACHI METALS, LTD.
    Inventors: Katsuya Akimoto, Naofumi Chiwata, Yosuke Sumi, Katsutoshi Nakatani, Kenji Ajima, Hiroshi Okikawa, Yasuharu Muto
  • Patent number: 9508468
    Abstract: A noise suppression cable includes an electrical wire, a first magnetic material including a pair of first surfaces formed along an axis direction of the electrical wire and a convex portion projecting from the first surfaces, and a second magnetic material including a pair of second surfaces disposed on a periphery of the electrical wire, the pair of the second surfaces contacting the pair of the first surfaces such that a tubular shape is formed by the first and second magnetic materials. The first magnetic material and the second magnetic material are configured to generate a compression stress in the convex portion of the first magnetic material by receiving an external force so as to reduce a relative permeability of the convex portion.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: November 29, 2016
    Assignee: HITACHI METALS, LTD.
    Inventors: Katsutoshi Nakatani, Yosuke Sumi, Kenji Ajima, Katsuya Akimoto, Naofumi Chiwata, Hiroshi Okikawa, Yasuharu Muto
  • Patent number: 9455071
    Abstract: A noise suppression cable includes a conductor wire, and a magnetic insulation layer on a periphery of the conductor wire. The magnetic insulation layer includes an insulating material and two or more types of magnetic powders that have different frequency characteristics from each other.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: September 27, 2016
    Assignee: Hitachi Metals, Ltd.
    Inventors: Yosuke Sumi, Naofumi Chiwata, Katsuya Akimoto, Katsutoshi Nakatani, Hiroshi Komuro, Kenji Ajima, Hiroshi Okikawa, Yasuharu Muto
  • Publication number: 20160211060
    Abstract: A shield cable includes an insulated electrical cable of a conductor wire sheathed about the circumference by an insulator, and a magnetic tape layer formed by wrapping magnetic tape about the circumference of the insulated electrical cable. The magnetic tape is a magnetic tape shaped by continuously cutting to constant width an elongated sheet comprising a magnetic material. The magnetic tape, on at least the insulated electrical cable-facing surface thereof, has grooves extending in the lengthwise direction, for accommodating at least one of pairs of burrs that are formed at both widthwise edge surfaces during cutting of the elongated sheet.
    Type: Application
    Filed: February 27, 2014
    Publication date: July 21, 2016
    Inventors: Katsuya AKIMOTO, Naofumi CHIWATA, Yosuke SUMI, Katsutoshi NAKATANI, Kenji AJIMA, Hiroshi OKIKAWA, Yasuharu MUTO
  • Patent number: 9396841
    Abstract: A noise suppression cable includes a plurality of twisted pair wires, an inclusion that includes an insulating material and a magnetic powder and separates the plurality of twisted pair wires, and a sheath that includes an insulating material and covers a periphery of the plurality of twisted pair wires and the inclusion.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: July 19, 2016
    Assignee: Hitachi Metals, Ltd.
    Inventors: Yosuke Sumi, Naofumi Chiwata, Katsuya Akimoto, Katsutoshi Nakatani, Kenji Ajima, Hiroshi Okikawa, Yasuharu Muto
  • Publication number: 20150357087
    Abstract: A noise suppression cable includes a conductor wire, and a magnetic insulation layer on a periphery of the conductor wire. The magnetic insulation layer includes an insulating material and two or more types of magnetic powders that have different frequency characteristics from each other.
    Type: Application
    Filed: June 5, 2015
    Publication date: December 10, 2015
    Inventors: Yosuke SUMI, Naofumi Chiwata, Katsuya Akimoto, Katsutoshi Nakatani, Hiroshi Komuro, Kenji Ajima, Hiroshi Okikawa, Yasuharu Muto
  • Publication number: 20150235738
    Abstract: A noise suppression cable includes an electrical wire, a first magnetic material including a pair of first surfaces formed along an axis direction of the electrical wire and a convex portion projecting from the first surfaces, and a second magnetic material including a pair of second surfaces disposed on a periphery of the electrical wire, the pair of the second surfaces contacting the pair of the first surfaces such that a tubular shape is formed by the first and second magnetic materials. The first magnetic material and the second magnetic material are configured to generate a compression stress in the convex portion of the first magnetic material by receiving an external force so as to reduce a relative permeability of the convex portion.
    Type: Application
    Filed: February 13, 2015
    Publication date: August 20, 2015
    Inventors: Katsutoshi NAKATANI, Yosuke SUMI, Kenji AJIMA, Katsuya AKIMOTO, Naofumi CHIWATA, Hiroshi OKIKAWA, Yasuharu MUTO
  • Publication number: 20150235741
    Abstract: A noise suppression cable includes a conductor wire, and a magnetic insulation layer that is formed around the conductor wire and includes an insulating material and a flat-shaped magnetic powder. A flatness direction of the magnetic powder is oriented in a circumferential direction of the magnetic insulation layer.
    Type: Application
    Filed: January 27, 2015
    Publication date: August 20, 2015
    Inventors: Yosuke Sumi, Naofumi Chiwata, Katsuya Akimoto, Katsutoshi Nakatani, Kenji Ajima, Hiroshi Okikawa, Yasuharu Muto
  • Publication number: 20150228377
    Abstract: A shielded cable includes an insulated wire including a conductor wire and an insulation formed around the conductor wire, and a shield layer formed around the insulated wire and including a shield wire. The shield wire includes a tubular member including a conductive material and defining a gap therein, and a magnetic powder is filled in the gap.
    Type: Application
    Filed: February 10, 2015
    Publication date: August 13, 2015
    Inventors: Katsuya AKIMOTO, Naofumi Chiwata, Yosuke Sumi, Katsutoshi Nakatani, Kenji Ajima, Hiroshi Okikawa, Yasuharu Muto
  • Publication number: 20150221418
    Abstract: A noise suppression cable includes a plurality of twisted pair wires, an inclusion that includes an insulating material and a magnetic powder and separates the plurality of twisted pair wires, and a sheath that includes an insulating material and covers a periphery of the plurality of twisted pair wires and the inclusion.
    Type: Application
    Filed: January 27, 2015
    Publication date: August 6, 2015
    Inventors: Yosuke SUMI, Naofumi CHIWATA, Katsuya AKIMOTO, Katsutoshi NAKATANI, Kenji AJIMA, Hiroshi OKIKAWA, Yasuharu MUTO