Patents by Inventor Shinji Fujita

Shinji Fujita 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).

  • Publication number: 20240088051
    Abstract: A method for manufacturing a semiconductor device is disclosed. The method for manufacturing a semiconductor device includes preparing a base material, preparing a plurality of semiconductor elements each having a connection terminal, preparing a wiring board provided with a first wiring, arranging the plurality of semiconductor elements on the base material, covering the plurality of semiconductor elements on the base material with an insulating material, arranging the wiring board on at least one of the plurality of semiconductor elements so that the first wiring is connected to at least some of the connection terminals of the plurality of semiconductor elements covered with the insulating material, and forming a second wiring around the first wiring. The first wiring has finer wiring than the second wiring.
    Type: Application
    Filed: January 12, 2022
    Publication date: March 14, 2024
    Inventors: Kazuyuki MITSUKURA, Shunsuke OTAKE, Hiroaki FUJITA, Shinji SHIMAOKA, Takashi MASUKO, Kazuhiko KURAFUCHI
  • Publication number: 20240045009
    Abstract: A superconducting magnet apparatus includes a superconducting coil, a persistent current switch, a cryostat, an external resistance element that attenuates energy accumulated in the superconducting coil when the superconducting coil is demagnetized, an external power supply capable of energizing a reverse current of a persistent current to the superconducting coil, and a circuit breaker capable of freely cutting off energization between the external power supply and the superconducting coil. A method for demagnetizing a superconducting magnet includes causing the reverse current of the persistent current to flow from the external power supply, and switching the persistent current switch to an off-state and switching the circuit breaker to an off-state, and demagnetizing the superconducting magnet by causing a current flowing through the superconducting coil to flow to an external resistance element when the amount of current flowing through the persistent current switch decreases.
    Type: Application
    Filed: December 23, 2021
    Publication date: February 8, 2024
    Inventors: Motomune KODAMA, Yota ICHIKI, Shinji FUJITA
  • Patent number: 11837815
    Abstract: A sealing member is attached to a connector opening of an electronic device to seal between an insulating cover of a cable inserted in the connector opening and a main body of the electronic device. The sealing member includes a housing made of an elastic material. The housing includes a first opening, a second opening facing the first opening and located to an inside of the electronic device than the first opening, and an inclined surface having a tapered shape that is tapered inward from the first opening to the second opening. The housing includes a first cylindrical portion forming the inclined surface inside the first cylindrical portion, a second cylindrical portion provided outside the first cylindrical portion, and a gap formed between the first cylindrical portion and the second cylindrical portion. The first cylindrical portion and the second cylindrical portion are connected to each other around the first opening.
    Type: Grant
    Filed: December 4, 2021
    Date of Patent: December 5, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuki Zusho, Shinji Fujita, Hiroki Kamezaki, Hitoshi Nakatani
  • Publication number: 20230349556
    Abstract: A combustor includes: a combustion cylinder; and a combustion-chamber forming member disposed so as to be at least partially inserted into the combustion cylinder and forming a combustion chamber with the combustion cylinder. A radial-direction gap for introducing film air is formed between the combustion cylinder and the combustion-chamber forming member. A gas turbine includes a combustor; a compressor for generating compressed air; and a turbine configured to be rotary driven by combustion gas from the combustor.
    Type: Application
    Filed: February 19, 2020
    Publication date: November 2, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Shinji FUJITA, Hikaru KUROSAKI, Yuta ISHII
  • Patent number: 11789495
    Abstract: An electronic device retaining structure includes: an electronic device having a device body and a display rotatably connected to the device body; a base having a placing surface placed with the electronic device; and at least one pair of retainers mounted on an outer periphery of the base and facing each other. Each of the at least one pair of retainers has a retaining claw protruding from an outer side to an inner side of the placing surface. The retaining claw has, at the upper part, an upward slope sloping upward from the inner side toward the outer side and coming into contact with a side edge of the display when the display is rotated in a direction approaching the placing surface, and below the upward slope, a downward slope sloping downward from the inner side toward the outer side and pressing the device body against the placing surface.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: October 17, 2023
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shinji Fujita, Hideki Harada, Shun Higashihara
  • Publication number: 20230317318
    Abstract: In the connection portion for a superconducting wire, a plurality of superconducting wires are integrated by a sintered body containing MgB2, end portions of the superconducting wires each having an outer peripheral surface of a superconducting filament exposed are inserted into a container in parallel. The container has an opening having a diameter larger than a wire diameter of the superconducting wires on at least one side in a longitudinal direction of the superconducting wires, and the sintered body is in contact with the outer peripheral surfaces of the superconducting filaments. The method for connecting a superconducting wire includes: exposing the outer peripheral surfaces of the superconducting filaments; inserting the superconducting wires into the container; filling the container with a raw material; and heat-treating the raw material to generate the sintered body. The raw material is pressurized in parallel to the longitudinal direction of the superconducting wires and then heat-treated.
    Type: Application
    Filed: August 6, 2021
    Publication date: October 5, 2023
    Inventors: Shinji FUJITA, Yota ICHIKI, Motomune KODAMA, Tsuyoshi WAKUDA
  • Patent number: 11710583
    Abstract: A superconducting coil comprising an oxide superconducting wire includes: a superconducting laminate comprising a substrate and an oxide superconducting layer; and a stabilization layer made of copper plating formed around the superconducting laminate. A thickness d of the stabilization layer is in the range of 10 to 40 ?m. A ratio Ra/d of the thickness d of the stabilization layer and an arithmetic mean roughness Ra of an outer surface of the stabilization layer is in the range of 0.005 to 0.03. An intermediate layer is arranged between the substrate and the oxide superconducting layer. When a tensile test of pulling the oxide superconducting wire in a longitudinal direction within a stress range of 180 to 600 MPa in liquid nitrogen is performed, a ratio of a critical current when a repeated pulling number reaches 100,000 times and an initial critical current measured before the tensile test is 0.99 or more.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: July 25, 2023
    Assignee: Fujikura Ltd.
    Inventor: Shinji Fujita
  • Publication number: 20230126510
    Abstract: An oxide superconducting wire includes: a superconducting laminate comprising a substrate and an oxide superconducting layer; and a stabilization layer made of copper plating formed around the superconducting laminate. A thickness d of the stabilization layer is in the range of 10 to 40 ?m. A ratio Ra/d of the thickness d of the stabilization layer and an arithmetic mean roughness Ra of an outer surface of the stabilization layer is in the range of 0.005 to 0.03. An intermediate layer is arranged between the substrate and the oxide superconducting layer. When a tensile test of pulling the oxide superconducting wire in a longitudinal direction within a stress range of 180 to 600 MPa in liquid nitrogen is performed, a ratio of a critical current when a repeated pulling number reaches 100,000 times and an initial critical current measured before the tensile test is 0.99 or more.
    Type: Application
    Filed: April 6, 2020
    Publication date: April 27, 2023
    Applicant: Fujikura Ltd.
    Inventor: Shinji Fujita
  • Publication number: 20220342445
    Abstract: Provided is a port replicator including: a body having an opening; a terminal accommodated in the body and exposed from the opening; a shaft provided in the body; a retainer that rotatably holds the body about a rotation axis of the shaft; and one or more elastic bodies attached to the body and pressing the body in a predetermined rotation direction.
    Type: Application
    Filed: July 8, 2022
    Publication date: October 27, 2022
    Inventors: Keisuke SHINO, Akira IWAMOTO, Shinji FUJITA
  • Publication number: 20220094100
    Abstract: A sealing member is attached to a connector opening of an electronic device to seal between an insulating cover of a cable inserted in the connector opening and a main body of the electronic device. The sealing member includes a housing made of an elastic material. The housing includes a first opening, a second opening facing the first opening and located to an inside of the electronic device than the first opening, and an inclined surface having a tapered shape that is tapered inward from the first opening to the second opening. The housing includes a first cylindrical portion forming the inclined surface inside the first cylindrical portion, a second cylindrical portion provided outside the first cylindrical portion, and a gap formed between the first cylindrical portion and the second cylindrical portion. The first cylindrical portion and the second cylindrical portion are connected to each other around the first opening.
    Type: Application
    Filed: December 4, 2021
    Publication date: March 24, 2022
    Inventors: Kazuki ZUSHO, Shinji FUJITA, Hiroki KAMEZAKI, Hitoshi NAKATANI
  • Patent number: 11282635
    Abstract: An object of the present invention is to provide a stationary induction electric apparatus that can improve insulating performance with a few additional structures. In the stationary induction electric apparatus comprising: an iron core 1; a low-voltage coil conductor 400 wound on the iron core; an insulator 3 enclosing the low-voltage coil conductor; and a high-voltage coil conductor 2 which is wound on the insulator and to which a voltage is applied from the outside, a first shield conductor 5 wound adjacent to the inner peripheral surface of the insulator, a second shield conductor 4 wound adjacent to the outer peripheral surface of the insulator, one end of the first shield conductor, and one end of the second shield conductor are electrically connected to any region of the high-voltage coil conductor.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: March 22, 2022
    Assignee: Hitachi, Ltd.
    Inventors: Satoshi Ichimura, Daigo Komesu, Shinji Fujita, Hiroshi Morita, Li Lu
  • Patent number: 11267722
    Abstract: An oxide superconducting wire includes a superconducting layer deposited on a substrate. The superconducting layer includes an oxide superconductor RE-Ba—Cu—O and artificial pinning centers ABO3, where RE is a rare earth element, A is Ba, Sr or Ca, and B is Hf, Zr, or Sn. In a TEM image of a cross-section of the superconducting layer, a standard deviation ? of an inclination angle of the artificial pinning center rods with respect to a cross-sectional direction of the superconducting layer is 6.13° to 11.73° and an average length of the artificial pinning center rods is 19.84 to 25.44 nm.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: March 8, 2022
    Assignee: FUJIKURA LTD.
    Inventors: Wataru Hirata, Shinji Fujita
  • Publication number: 20210323834
    Abstract: An oxide superconducting wire includes a superconducting layer deposited on a substrate. The superconducting layer includes an oxide superconductor RE-Ba—Cu—O and artificial pinning centers ABO3, where RE is a rare earth element, A is Ba, Sr or Ca, and B is Hf, Zr, or Sn. In a TEM image of a cross-section of the superconducting layer, a standard deviation ? of an inclination angle of the artificial pinning center rods with respect to a cross-sectional direction of the superconducting layer is 6.13° to 11.73° and an average length of the artificial pinning center rods is 19.84 to 25.44 nm.
    Type: Application
    Filed: December 9, 2019
    Publication date: October 21, 2021
    Applicant: Fujikura Ltd.
    Inventors: Wataru Hirata, Shinji Fujita
  • Publication number: 20210285477
    Abstract: An electronic device retaining structure includes: an electronic device having a device body and a display rotatably connected to the device body; a base having a placing surface placed with the electronic device; and at least one pair of retainers mounted on an outer periphery of the base and facing each other. Each of the at least one pair of retainers has a retaining claw protruding from an outer side to an inner side of the placing surface. The retaining claw has, at the upper part, an upward slope sloping upward from the inner side toward the outer side and coming into contact with a side edge of the display when the display is rotated in a direction approaching the placing surface, and below the upward slope, a downward slope sloping downward from the inner side toward the outer side and pressing the device body against the placing surface.
    Type: Application
    Filed: May 28, 2021
    Publication date: September 16, 2021
    Inventors: Shinji FUJITA, Hideki HARADA, Shun HIGASHIHARA
  • Publication number: 20210272722
    Abstract: A superconducting wire connector includes superconducting wires and a sintered body containing MgB2. The superconducting wires are connected by the sintered body. At least one of the superconducting wires includes a superconducting core having a first outer surface. The sintered body is in contact with the first outer surface. A method of connecting superconducting wires by a sintered body containing MgB2 includes exposing a superconducting core of at least one of the superconducting wires by removing a portion, positioned in the middle in a longitudinal direction of the at least one of the superconducting wires, of a metal sheath disposed around the superconducting core, disposing the at least one of the superconducting wires through a container, filling the container with a raw material of MgB2, and forming the sintered body being in contact with an outer surface of the superconducting core by sintering the raw material filled in the container.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 2, 2021
    Inventors: Shinji FUJITA, Tsuyoshi WAKUDA, Yota ICHIKI, Motomune KODAMA
  • Publication number: 20200219646
    Abstract: An object of the present invention is to provide a stationary induction electric apparatus that can improve insulating performance with a few additional structures. In the stationary induction electric apparatus comprising: an iron core 1; a low-voltage coil conductor 400 wound on the iron core; an insulator 3 enclosing the low-voltage coil conductor; and a high-voltage coil conductor 2 which is wound on the insulator and to which a voltage is applied from the outside, a first shield conductor 5 wound adjacent to the inner peripheral surface of the insulator, a second shield conductor 4 wound adjacent to the outer peripheral surface of the insulator, one end of the first shield conductor, and one end of the second shield conductor are electrically connected to any region of the high-voltage coil conductor.
    Type: Application
    Filed: May 15, 2018
    Publication date: July 9, 2020
    Inventors: Satoshi ICHIMURA, Daigo KOMESU, Shinji FUJITA, Hiroshi MORITA, Li LU
  • Patent number: 10249421
    Abstract: A superconducting coil, includes a coil body around which a superconducting wire is wound; an electrode member which includes a first surface, a second surface, a base portion, and an extension portion, the first surface facing an outer peripheral surface of the coil body, the second surface being positioned to be opposite to the first surface, the base portion being solder-joined to the superconducting wire of the coil body on the first surface, the extension portion extending from the second surface to the outside of the coil body, and an electrode superconducting wire which extends from the second surface of the electrode member toward the extension portion, and is solder-joined to the base portion and the extension portion.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: April 2, 2019
    Assignee: FUJIKURA LTD.
    Inventor: Shinji Fujita
  • Patent number: 10189091
    Abstract: A simple machine tool including a relatively simple shaped turret having as many tool attachment parts as possible even when a cutout part for a movement path for a main spindle is provided. A machine tool includes a first main spindle, a second main spindle, a first turret having tool attachment parts, a second turret having tool attachment parts, and a controller having an indexing device. An edge of a cutout part formed in the second turret is a straight line in a direction crossing each side of a regular dodecagon centered at a turning center of the second turret, as seen in a Z axis direction, and each tool attachment part is disposed according to each side left in the regular dodecagon cut off by the cutout part.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: January 29, 2019
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.
    Inventors: Kensuke Tajima, Shinji Fujita, Mitsuru Yamaura, Kazuyuki Izumi
  • Patent number: 10090095
    Abstract: A stationary induction electrical apparatus includes a disc winding having a structure in which a flow path for a cooling medium is provided between coils where a low voltage is generated between shield wires, an L-shaped insulation barrier is provided between coils where a high voltage is generated between the shield wires, a horizontal portion of the L-shaped insulation barrier is provided so as to closely contact an upper surface or a lower surface of the disc coil, a tip end portion in an axial direction of the L-shaped insulation barrier is provided so as to closely contact an inner surface of the disc coil which is adjacent to a pressboard insulation cylinder, and a height of the tip end portion in the axial direction is lower than a thickness of one coil.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: October 2, 2018
    Assignee: HITACHI, LTD.
    Inventors: Li Lu, Kenichi Kawamura, Hiroshi Miyao, Hiroshi Morita, Satoshi Ichimura, Jun Nukaga, Shinji Fujita, Kohei Yamaguchi, Hideki Ogata, Masato Suzuki
  • Patent number: D826943
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: August 28, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Keisuke Shino, Go Osaki, Shinji Fujita, Muneo Iwamoto