Patents by Inventor Hirokazu NAKAI

Hirokazu NAKAI 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: 10937565
    Abstract: A wire harness, including: a first conductor including a first connection; a second conductor including a second connection that is connected to the first connection; an adhered member that is disposed on an outer circumference of a connection part between the first connection and the second connection; and an interposed member that is interposed between the connection part and the adhered member, the adhered member being adhered on an outer circumferential surface of the interposed member, wherein the interposed member has rigidity to maintain a certain shape.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: March 2, 2021
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Ryo Fujioka, Hirokazu Nakai
  • Patent number: 10937567
    Abstract: A conduction path that includes a tubular conductor; a flexible conductor that has better flexibility than the tubular conductor and is connected to the tubular conductor; and a terminal that is connected to the flexible conductor, wherein: an end of the flexible conductor in a lengthwise direction thereof is fixed at a fixing portion of the tubular conductor in a state in which the end is inserted into the tubular conductor, the fixing portion includes a first deformed portion in which an outer peripheral wall of the tubular conductor is deformed radially inward and holds the flexible conductor, and a second deformed portion that is further deformed radially inward from the first deformed portion and is connected to the flexible conductor.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: March 2, 2021
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventor: Hirokazu Nakai
  • Patent number: 10916864
    Abstract: An electrical conduction path that includes a first conductor; a tubular first insulator that encloses the first conductor; a tubular second conductor that encloses the first insulator, and has shape retainability; a branch conductor that is flexible so as to be deformable into a compact elongated shape and into an expanded tubular shape, the branch conductor deformed into the expanded tubular shape enclosing an outer circumferential surface of the second conductor; and a fixing member that fixes the branch conductor to the outer circumferential surface of the second conductor.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: February 9, 2021
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Hirokazu Nakai, Ryo Fujioka
  • Publication number: 20210036439
    Abstract: A wire harness including: a plurality of shielded conductive paths including a plurality of wire bundles composed of a plurality of wires, and a plurality of shields that are composed of braided wires in which electrically conductive wires are braided into tubular shapes, and that individually encase the plurality of wire bundles; and a connector into which the plurality of shielded conductive paths are inserted, the connector being configured to be attached to a housing of a device, wherein the shields include tubular bodies that encase the wire bundles, and separated portions that extend separated from the wire bundles at portions of the bodies on terminal end sides of the wire bundles with respect to the connector, and the separated portions of the plurality of shields are grouped together.
    Type: Application
    Filed: March 12, 2019
    Publication date: February 4, 2021
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Hiroki MATSUYAMA, Hirokazu NAKAI
  • Publication number: 20210012924
    Abstract: A wire harness, including: a plurality of wire groups that each include a plurality of wires; a plurality of tubular first flexible shields that each encase a different one wire group of the plurality of wire groups; a tube that is made of a metal and into which drawn-out portions of the wires, which are drawn out from the first flexible shields, are inserted; and a tubular second flexible shield that bunches together and encases the drawn-out portions of the wires at positions thereof that are outside of the tube, and is electrically connected to the first flexible shields and the tube.
    Type: Application
    Filed: March 25, 2019
    Publication date: January 14, 2021
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Yuya HIROMORI, Hirokazu NAKAI
  • Patent number: 10882473
    Abstract: A grommet includes a tube; and a flange that has a greater diameter than the tube, the flange having an inner end that is located on an inner side in a radial direction and that is coupled to one end of the tube, wherein: the inner end of the flange is formed so as to bulge outward in a radial direction relative to an outer circumferential surface of the tube, and has an outer surface that faces toward the tube and an inner circumferential surface that is located on the opposite side of the outer surface, and faces toward an internal space of the flange, and a connection between the one end of the tube and the inner end of the flange is provided with a recess that is recessed in a direction from the outer surface of the inner end to the inner circumferential surface of the inner end.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: January 5, 2021
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventor: Hirokazu Nakai
  • Patent number: 10847957
    Abstract: An exterior structure for a wire harness is provided with a pipe that has an electric wire insertion space that allows an electric wire to be inserted through the inside of the pipe. The pipe includes a diameter reduction portion that is defined by an inward deformation of the pipe in a diameter direction that narrows the electric wire insertion space. In the diameter reduction portion, the clearance between (i) the electric wire that is inserted through the electric wire insertion space of the pipe and (ii) the inner circumferential surface of the pipe can be reduced or eliminated, which suppresses rattling of the electric wire.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: November 24, 2020
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventor: Hirokazu Nakai
  • Publication number: 20200366006
    Abstract: A terminal holder for accommodating a plurality of terminal fittings that are attached to respective ends of a plurality of electrical wires, each of the plurality of terminal fittings including a connection that is connected and fixed to an attachment object through a bolt inserted in the connection, and a fixing portion that is fixed to the electrical wire, the terminal holder including: a plurality of through holes in which the connections of the plurality of terminal fittings are to be respectively disposed and that expose the connections; a plurality of accommodations for respectively accommodating the fixing portions of the plurality of terminal fittings; and a partition wall continuously extending between the fixing portions and between the connections of adjacent terminal fittings.
    Type: Application
    Filed: November 21, 2018
    Publication date: November 19, 2020
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Hirokazu NAKAI, Toshimitsu NAKAMURA
  • Publication number: 20200350099
    Abstract: This wire harness comprises an electroconductive path 10A formed into an elongated shape, and a pair of terminal parts 70, respectively connected at both end sections of the electroconductive path 10A. The electroconductive path 10A has a plurality of split electric wires 30, 40, routed in parallel between the pair of terminal parts 70. The split electric wire 30 has a core wire 31 and an insulation cover 32 covering the core wire 31. The split electric wire 40 has a core wire 41 and an insulation cover 42 covering the core wire 41.
    Type: Application
    Filed: January 17, 2019
    Publication date: November 5, 2020
    Inventors: Hirokazu NAKAI, Manai YOKOTA
  • Publication number: 20200343651
    Abstract: A pipe conductor formed by a conductive tubular body, the pipe conductor including: a connection for connecting with another conductor, the connection being formed by crushing an end of the conductive tubular body in an axial direction; a flat surface formed on a first surface of the connection; and a surface having a groove formed on a second surface of the connection, wherein: the groove reaches a tip end of the connection, and an end of the another conductor is in contact with only the flat surface.
    Type: Application
    Filed: October 12, 2018
    Publication date: October 29, 2020
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Ryo FUJIOKA, Hirokazu NAKAI
  • Patent number: 10790655
    Abstract: To achieve high waterproofness, a grommet that is attached so as to cover a shield pipe and a corrugated tube so as to bridge therebetween includes a pipe-side end portion that is formed in a tubular shape capable of being sealingly connected to an outer circumferential side of the pipe, and a corrugated-side end portion that is formed in a tubular shape capable of being sealingly connected to an outer circumferential side of the corrugated tube. A plurality of sealing lips that closely contact to an outer surface of the shield pipe are formed on an inner surface of the pipe-side end portion. The sealing lips are disposed inside and outside a width region W that is fastened by a fastening band disposed on an outer surface of the pipe-side end portion.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: September 29, 2020
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Hirokazu Nakai, Tomohiro Yabashi, Masashi Hayashi
  • Patent number: 10770200
    Abstract: It is aimed to realize a height reduction of a shielded conductive path and improve a heat dissipating function. In a shielded conductive path (W) in which a plurality of conductive members (1) each including a conductor portion (2), an insulating portion (3) and a shield portion (4) disposed from a central part toward an outer peripheral side are arranged in parallel, at least one of the conductor portion (2), the insulating portion (3) and the shield portion (4) is formed by a shape retaining member capable of retaining each conductive member (1) in a set shape.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: September 8, 2020
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Hirokazu Nakai
  • Publication number: 20200258657
    Abstract: It is aimed to realize a height reduction of a shielded conductive path and improve a heat dissipating function. In a shielded conductive path (W) in which a plurality of conductive members (1) each including a conductor portion (2), an insulating portion (3) and a shield portion (4) disposed from a central part toward an outer peripheral side are arranged in parallel, at least one of the conductor portion (2), the insulating portion (3) and the shield portion (4) is formed by a shape retaining member capable of retaining each conductive member (1) in a set shape.
    Type: Application
    Filed: July 18, 2018
    Publication date: August 13, 2020
    Inventor: Hirokazu Nakai
  • Publication number: 20200258654
    Abstract: A conduction path that includes a tubular conductor; a flexible conductor that has better flexibility than the tubular conductor and is connected to the tubular conductor; and a terminal that is connected to the flexible conductor, wherein: an end of the flexible conductor in a lengthwise direction thereof is fixed at a fixing portion of the tubular conductor in a state in which the end is inserted into the tubular conductor, the fixing portion includes a first deformed portion in which an outer peripheral wall of the tubular conductor is deformed radially inward and holds the flexible conductor, and a second deformed portion that is further deformed radially inward from the first deformed portion and is connected to the flexible conductor.
    Type: Application
    Filed: June 26, 2018
    Publication date: August 13, 2020
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventor: Hirokazu NAKAI
  • Publication number: 20200243216
    Abstract: A wire harness, including: a first conductor including a first connection; a second conductor including a second connection that is connected to the first connection; an adhered member that is disposed on an outer circumference of a connection part between the first connection and the second connection; and an interposed member that is interposed between the connection part and the adhered member, the adhered member being adhered on an outer circumferential surface of the interposed member, wherein the interposed member has rigidity to maintain a certain shape.
    Type: Application
    Filed: September 25, 2018
    Publication date: July 30, 2020
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Ryo FUJIOKA, Hirokazu NAKAI
  • Publication number: 20200231102
    Abstract: A grommet includes a tube; and a flange that has a greater diameter than the tube, the flange having an inner end that is located on an inner side in a radial direction and that is coupled to one end of the tube, wherein: the inner end of the flange is formed so as to bulge outward in a radial direction relative to an outer circumferential surface of the tube, and has an outer surface that faces toward the tube and an inner circumferential surface that is located on the opposite side of the outer surface, and faces toward an internal space of the flange, and a connection between the one end of the tube and the inner end of the flange is provided with a recess that is recessed in a direction from the outer surface of the inner end to the inner circumferential surface of the inner end.
    Type: Application
    Filed: November 21, 2019
    Publication date: July 23, 2020
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventor: Hirokazu NAKAI
  • Publication number: 20200169010
    Abstract: A conductive member includes a conductive pipe and a terminal fitting having a first end and a second end, the first end being a hollow pipe connection part that is connected to the pipe, and the second end being a counterpart connection part that is connectable to a counterpart conductor part. The pipe connection part has a contact part that has a circular cross-section and is fitted into the pipe. The pipe has (i) a concave section that indents radially inward near one end of the pipe and (ii) a depression that indents radially inward, the depression being positioned at a greater distance, than the concave section, from the one end of the pipe, and the depression being formed deeper, than the concave section, in a radial direction of the pipe. An end of the pipe connection part abuts against and is stopped by the depression.
    Type: Application
    Filed: March 19, 2018
    Publication date: May 28, 2020
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventor: Hirokazu NAKAI
  • Patent number: 10630003
    Abstract: A conductor connecting structure and a wire harness are able to improve connection reliability. An end portion of a first conductor and an end portion of a second conductor overlap each other in a radial direction, and a tubular member encloses, and is crimped onto, an overlapping portion where the first conductor and the second conductor overlap each other. With this configuration, it is possible to make a joint strong enough to resist a force applied in a direction in which the end portion of the first conductor and the end portion of the second conductor are detached from each other, and therefore it is possible to improve the reliability of connection between the first conductor and the second conductor.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: April 21, 2020
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventor: Hirokazu Nakai
  • Publication number: 20200119465
    Abstract: An electrical conduction path that includes a first conductor; a tubular first insulator that encloses the first conductor; a tubular second conductor that encloses the first insulator, and has shape retainability; a branch conductor that is flexible so as to be deformable into a compact elongated shape and into an expanded tubular shape, the branch conductor deformed into the expanded tubular shape enclosing an outer circumferential surface of the second conductor; and a fixing member that fixes the branch conductor to the outer circumferential surface of the second conductor.
    Type: Application
    Filed: July 5, 2018
    Publication date: April 16, 2020
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Hirokazu NAKAI, Ryo FUJIOKA
  • Patent number: 10618478
    Abstract: A wire harness that includes a braid composed of conductive strands; a cylindrical conductor that is electrically connected to the braid and can be attached to an attachment target; and an electrical wire inserted into the braid and the cylindrical conductor, wherein the cylindrical conductor includes a rotation restriction that restricts rotation of the cylindrical conductor with respect to the attachment target by engaging with the attachment target in a circumferential direction of the cylindrical conductor, and the rotation restriction also restricts the cylindrical conductor from moving in an axial direction of the cylindrical conductor by engaging with the attachment target in the axial direction.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: April 14, 2020
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Hirokazu Nakai, Tomohiro Yabashi