Patents by Inventor Daichi Kawaguchi

Daichi Kawaguchi 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: 11916337
    Abstract: A wire harness including a wire and a connector, wherein the connector includes a connector main body that is partially or entirely made of a conductive resin or is partially formed by a conductive portion, a shield that is made of a conductive metal and covers a periphery of the connector main body, and a conductive elastic member that is provided between the connector main body and the shield, a circumference of the wire is covered by a tube, the tube including a heat-shrinkable shielding tube having a conductive portion that is configured to surround the circumference of the wire, and in a state in which the tube is attached to an attachment of the connector main body, the conductive portion of the tube, the connector main body, the conductive elastic member, and the shield are electrically connected to each other.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: February 27, 2024
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Daichi Kawaguchi
  • Publication number: 20230155305
    Abstract: A wire harness including: a core wire having a parent braided wire obtained by braiding together assembled wires including twisted wires; and a metal terminal welded to the parent braided wire of the core wire, wherein the twisted wires forming the parent braided wire include a first twisted wire twisted in a first rotation direction and a second twisted wire twisted in a second rotation direction opposite to the first rotation direction.
    Type: Application
    Filed: March 23, 2021
    Publication date: May 18, 2023
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Daichi KAWAGUCHI
  • Publication number: 20230154646
    Abstract: A wire harness including: a core wire having a flat straight section whose vertical height is smaller than a width thereof and a bend bent from an end of the straight section, wherein: the straight section is formed from a second assembled wire obtained by twisting or braiding together first assembled wires which are each obtained by twisting or braiding wire strands, and the bend is formed from a plurality of adjacent wires arranged adjacently in a direction orthogonal to a vertical direction.
    Type: Application
    Filed: March 23, 2021
    Publication date: May 18, 2023
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Daichi KAWAGUCHI, Masahiro HAGI
  • Publication number: 20230033383
    Abstract: A wire harness including a wire and a connector, wherein the connector includes a connector main body that is partially or entirely made of a conductive resin or is partially formed by a conductive portion, a shield that is made of a conductive metal and covers a periphery of the connector main body, and a conductive elastic member that is provided between the connector main body and the shield, a circumference of the wire is covered by a tube, the tube including a heat-shrinkable shielding tube having a conductive portion that is configured to surround the circumference of the wire, and in a state in which the tube is attached to an attachment of the connector main body, the conductive portion of the tube, the connector main body, the conductive elastic member, and the shield are electrically connected to each other.
    Type: Application
    Filed: December 17, 2020
    Publication date: February 2, 2023
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Daichi KAWAGUCHI
  • Publication number: 20220344850
    Abstract: A wire harness including: a wire; a wire-side terminal that is electrically connected to the wire; and a terminal block to which the wire-side terminal is attached, wherein: the terminal block includes a holding fitting that holds the wire-side terminal in a state where the wire-side terminal is electrically connected to a contact, the holding fitting includes a plate, and at least one of the wire-side terminal and the holding fitting includes a curved surface that is in contact with the other of the wire-side terminal and the holding fitting in a state where rotation in two directions around two axes that intersect each other is allowed.
    Type: Application
    Filed: September 2, 2020
    Publication date: October 27, 2022
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Daichi KAWAGUCHI, Toshiya HIROOKA, Jisung KIM
  • Patent number: 9787012
    Abstract: It is aimed to provide a terminal fitting (1) in which thick plating films can be formed on necessary parts without requiring particularly complicated plating. The terminal fitting (10) includes a tubular connecting portion (11) into which a mating male terminal (60) is insertable. The connecting portion (11) includes a plurality of resilient pieces (14) circumferentially divided via expanding slots (13) extending from a tip. Thick film portions (22) with a thicker plating film than in other parts are provided on inner surfaces of the plurality of resilient pieces (14) and contact areas (17) capable of contacting the male terminal (60) are provided on these thick film portions (22). The thick film portions (22) and the contact areas (17) are arranged continuously in a circumferential direction except at the positions of the expanding slots (13) on an inner surface of the connecting portion (11) near a tip.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: October 10, 2017
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Daichi Kawaguchi, Shiro Nishida, Nobuyuki Akiba, Takuya Utsunomiya, Fumitaka Maekawa
  • Publication number: 20160197426
    Abstract: It is aimed to provide a terminal fitting (1) in which thick plating films can be formed on necessary parts without requiring particularly complicated plating. The terminal fitting (10) includes a tubular connecting portion (11) into which a mating male terminal (60) is insertable. The connecting portion (11) includes a plurality of resilient pieces (14) circumferentially divided via expanding slots (13) extending from a tip. Thick film portions (22) with a thicker plating film than in other parts are provided on inner surfaces of the plurality of resilient pieces (14) and contact areas (17) capable of contacting the male terminal (60) are provided on these thick film portions (22). The thick film portions (22) and the contact areas (17) are arranged continuously in a circumferential direction except at the positions of the expanding slots (13) on an inner surface of the connecting portion (11) near a tip.
    Type: Application
    Filed: September 8, 2014
    Publication date: July 7, 2016
    Inventors: Daichi Kawaguchi, Shiro Nishida, Nobuyuki Akiba, Takuya Utsunomiya, Fumitaka Maekawa
  • Patent number: 8057258
    Abstract: A shielded connector achieving sufficient contact load between a shielded conductor and a crimp portion of an outer conductor shell without influence such as deformation of cross sections on signal wires when the crimp portion is crimped onto the conductor, and enhanced pull-out strength of a shielded cable against the shell. The shell includes a tubular connection portion having an arc-shaped cross section and arranged to be inserted into the conductor end portion exposed by stripping off a sheath portion at the cable end portion, shielded conductor crimping portions opposed to the connection portion and arranged to be crimped onto the conductor end portion into which the connection portion has been inserted, and fitting spaces provided to an inside of the conductor crimping portions at positions opposed to the tubular connection portion. Upper ends of the connection portion and the conductor are inserted into the spaces during crimping process.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: November 15, 2011
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Daichi Kawaguchi, Yukou Sato, Toshio Kometani
  • Publication number: 20110104476
    Abstract: A soft magnetic material includes a composite magnetic particle and an organic substance. The composite magnetic particle has a metallic magnetic particle and a coating layer coating the metallic magnetic particle and containing an oxide therein. The organic substance is formed by adding at least one of a thermoplastic resin and a higher fatty acid having an effect of increasing resistivity of the material, to a non-thermoplastic resin having an effect of improving durability such as material fatigue limit. The organic substance is contained in the soft magnetic material by not less than 0.001% by mass and not more than 0.2% by mass. The present invention provides a soft magnetic material having high magnetic property and mechanical strength and also having fatigue property and resistivity satisfying durability enough for use as a motor core or the like, and a method for manufacturing the same. Further, the invention provides a motor core and a transformer core made of the soft magnetic material.
    Type: Application
    Filed: May 28, 2004
    Publication date: May 5, 2011
    Inventors: Haruhisa Toyoda, Daichi Kawaguchi, Shohzoh Tanaka, Kazuhiko Ueda
  • Publication number: 20110081803
    Abstract: A shielded connector achieving sufficient contact load between a shielded conductor and a crimp portion of an outer conductor shell without influence such as deformation of cross sections on signal wires when the crimp portion is crimped onto the conductor, and enhanced pull-out strength of a shielded cable against the shell. The shell includes a tubular connection portion having an arc-shaped cross section and arranged to be inserted into the conductor end portion exposed by stripping off a sheath portion at the cable end portion, shielded conductor crimping portions opposed to the connection portion and arranged to be crimped onto the conductor end portion into which the connection portion has been inserted, and fitting spaces provided to an inside of the conductor crimping portions at positions opposed to the tubular connection portion. Upper ends of the connection portion and the conductor are inserted into the spaces during crimping process.
    Type: Application
    Filed: December 7, 2010
    Publication date: April 7, 2011
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Daichi Kawaguchi, Yukou Sato, Toshio Kometani
  • Patent number: 7909647
    Abstract: A shielded connector achieving sufficient contact load between a shielded conductor and a crimp portion of an outer conductor shell without influence such as deformation of cross sections on signal wires when the crimp portion is crimped onto the conductor, and enhanced pull-out strength of a shielded cable against the shell. The shell includes a tubular connection portion having an arc-shaped cross section and arranged to be inserted into the conductor end portion exposed by stripping off a sheath portion at the cable end portion, shielded conductor crimping portions opposed to the connection portion and arranged to be crimped onto the conductor end portion into which the connection portion has been inserted, and fitting spaces provided to an inside of the conductor crimping portions at positions opposed to the tubular connection portion. Upper ends of the connection portion and the conductor are inserted into the spaces during crimping process.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: March 22, 2011
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Daichi Kawaguchi, Yukou Sato, Toshio Kometani
  • Publication number: 20100136832
    Abstract: A shielded connector achieving sufficient contact load between a shielded conductor and a crimp portion of an outer conductor shell without influence such as deformation of cross sections on signal wires when the crimp portion is crimped onto the conductor, and enhanced pull-out strength of a shielded cable against the shell. The shell includes a tubular connection portion having an arc-shaped cross section and arranged to be inserted into the conductor end portion exposed by stripping off a sheath portion at the cable end portion, shielded conductor crimping portions opposed to the connection portion and arranged to be crimped onto the conductor end portion into which the connection portion has been inserted, and fitting spaces provided to an inside of the conductor crimping portions at positions opposed to the tubular connection portion. Upper ends of the connection portion and the conductor are inserted into the spaces during crimping process.
    Type: Application
    Filed: July 31, 2008
    Publication date: June 3, 2010
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Daichi Kawaguchi, Yukou Sato, Toshio Kometani
  • Patent number: 6661152
    Abstract: A diamond film is deposited in the thickness of 20 &mgr;m on a silicon wafer 0.8 mm thick by filament CVD. Here the hydrogen content of the diamond film is adjusted in the range of not less than 1% nor more than 5% in atomic percent. By mechanical polishing with a grinding wheel including diamond abrasives, the diamond film is smoothed so that the arithmetic mean roughness (Ra) of the surface thereof becomes not more than 20 nm.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: December 9, 2003
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Keiji Ishibashi, Takahiro Imai, Tomoki Uemura, Daichi Kawaguchi, Hideaki Nakahata, Satoshi Fujii
  • Publication number: 20030137217
    Abstract: A diamond film is deposited in the thickness of 20 &mgr;m on a silicon wafer 0.8 mm thick by filament CVD Here the hydrogen content of the diamond film is adjusted in the range of not less than 1% nor more than 5% in atomic percent. By mechanical polishing with a grinding wheel including diamond abrasives, the diamond film is smoothed so that the arithmetic mean roughness (Ra) of the surface thereof becomes not more than 20 nm.
    Type: Application
    Filed: October 4, 2002
    Publication date: July 24, 2003
    Inventors: Keiji Ishibashi, Takahiro Imai, Tomoki Uemura, Daichi Kawaguchi, Hideaki Nakahata, Satoshi Fujii