Patents by Inventor Eiichi Toyama

Eiichi Toyama 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: 10008305
    Abstract: A wire harness includes one or more electrically-conducting paths, a tubular shielding member configured to collectively accommodate the electrically-conducting paths, a braided shielding member including a cylindrical braided member and connected to an end of the tubular shielding member, and an annular crimping member including a fixing portion which fixedly connects the braided shielding member and the tubular shielding member by crimping, and a bent portion which is formed by bending an open end of the fixing portion to outside of the fixing portion.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: June 26, 2018
    Assignee: YAZAKI CORPORATION
    Inventors: Eiichi Toyama, Shigemi Hashizawa
  • Patent number: 9616825
    Abstract: A wire harness includes one or more conductive paths, and a conductive path protection member that covers the conductive path. The conductive path protection member is formed into a cylindrical shape by spirally winding a metal wire material and portions of the metal wire material positioned to be adjacent to each other contact with each other at side end faces opposed to each other.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: April 11, 2017
    Assignee: YAZAKI CORPORATION
    Inventors: Eiichi Toyama, Shigemi Hashizawa
  • Patent number: 9536641
    Abstract: A method of manufacturing an automobile high voltage wire harness includes setting a shrinkable tube which has a color to make the wire harness recognized as a high voltage one outside a metal pipe body which is an exterior member of one or a plurality of high voltage electrical pathway(s) wired in an automobile, making the shrinkable tube shrink to cover part of or all of the outer surface of the metal pipe body, and bending the metal pipe body to a predetermined position to be formed into a three-dimensional shape.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: January 3, 2017
    Assignee: YAZAKI CORPORATION
    Inventors: Eiichi Toyama, Takashi Kato
  • Patent number: 9490613
    Abstract: A wire harness includes a high-voltage wire and a pipe member for receiving the high-voltage wire. The pipe member is provided, at a plurality of points thereon, with crushed portions formed by crushing a pipe outer surface inward. The crushed portions are formed as portions to which clamps are to be attached. The crushed portions are formed and positioned in correspondence with positions of L-shaped brackets. The crushed portions are formed as portions for generating protrusions on a pipe inner surface, and the protrusions serve as a contact supporting point for the high-voltage wire.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: November 8, 2016
    Assignee: YAZAKI CORPORATION
    Inventors: Takashi Kato, Eiichi Toyama
  • Publication number: 20160217886
    Abstract: A wiring harness is arranged at a predetermined location in a vehicle such as an automobile. The wiring harness comprises a plurality of electrical wires and a protection member in which to-be-protected portion of the electrical wires is inserted en bloc to be protected thereby. The protection member includes a plurality of main protection members serving as a principal part of the protection member for protecting the electrical wires and a plurality of secondary protection members serving as a secondary part with respect to the principal part, the main protection member being a corrugated tube and the secondary protection member being a standardized pipe.
    Type: Application
    Filed: April 1, 2016
    Publication date: July 28, 2016
    Inventors: Eiichi Toyama, Shigemitsu Kameda, Shigemi Hashizawa
  • Patent number: 9387816
    Abstract: A wire harness includes a conductive path and a route holding portion that holds a route of the conductive path. The route holding portion has a cylindrical shape and is comprised of a watercrosslinkable fixing member or a photocrosslinkable fixing member having elastic so that the route holding portion is elastically deformed at least in a radial direction thereof.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: July 12, 2016
    Assignee: YAZAKI CORPORATION
    Inventor: Eiichi Toyama
  • Patent number: 9390837
    Abstract: A wire harness includes one or a plurality of high voltage conduction paths, each having a high voltage conduction path main body, and a terminal which is provided at an end of the high voltage conduction path main body. The high voltage conduction path main body is formed into a cylindrical shape by spirally winding a metal wire rod and an insulating wire rod, and side end surfaces, which face each other, of the metal wire rod and the insulating wire rod positioned to be adjacent to each other alternately, contact each other.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: July 12, 2016
    Assignee: YAZAKI CORPORATION
    Inventor: Eiichi Toyama
  • Patent number: 9349506
    Abstract: A shield member includes a metal foil layer and a base layer which have flexibility and are sheet-like or band-like, a bonding layer which bonds the metal foil layer and the base layer, and a cylindrical portion and an overlapping portion which are made by winding and folding the metal foil layer and the base layer so that the metal foil layer is on an inside. The overlapping portion is in a state of being brought down and arranged along the cylindrical portion.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: May 24, 2016
    Assignee: YAZAKI CORPORATION
    Inventors: Eiichi Toyama, Shigemi Hashizawa
  • Patent number: 9305681
    Abstract: A wiring harness including a high-voltage conductive path having a shape holding function for holding a shape along an arrangement pathway. The high-voltage conductive path includes a positive electrode conductor, a first insulator extruded and arranged outside of the positive electrode conductor, a negative electrode arranged outside of the first insulator, a second insulator extruded and arranged outside of the negative electrode conductor, a shield member wrapped outside of the second insulator, first and second sheaths extruded and arranged outside of the shield member.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: April 5, 2016
    Assignee: Yazaki Corporation
    Inventors: Eiichi Toyama, Tatsuya Oga, Shigemi Hashizawa, Eiji Shimochi
  • Patent number: 9272675
    Abstract: The invention relates to a wiring harness having a plurality of electrical wires and a tubular shielding member capable of accommodating the plurality of electrical wires as a whole therein. The wiring harness includes a plurality of electrical wires; and a tubular shielding member configured to receive the plurality of electrical wires as a whole, and coupled to a shield part of a device side via a tubular terminal portion thereof. The tubular shielding member includes a shielding body portion disposed over a bundled portion in which the plurality of electrical wires is bundled as a whole, and a shielding terminal portion disposed over an enlarged portion which gradually enlarges from the bundled portion in conformity with terminal arrangement of the plurality of electrical wires or a shape of the shield part of the device side, and continuous with at least one end of the shielding body portion. The shielding body portion is formed of metallic film and the shielding terminal portion is formed of braid.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: March 1, 2016
    Assignee: Yazaki Corporation
    Inventor: Eiichi Toyama
  • Patent number: 9252575
    Abstract: A high-voltage conduction path includes one conductor of a positive electrode conductor and a negative electrode conductor, a first insulator on the outside of the one conductor, the other conductor of the positive electrode conductor and the negative electrode conductor, the other conductor on the outside of the first insulator, and a second insulator on the outside of the other conductor. The other conductor is made of a metal wire material and formed into a cylindrical shape by spirally winding the metal wire material, and portions of the metal wire material positioned to be adjacent to each other contact with each other at side end faces opposed to each other.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: February 2, 2016
    Assignee: Yazaki Corporation
    Inventors: Eiichi Toyama, Shigemi Hashizawa
  • Patent number: 9197042
    Abstract: A wire harness includes: one or more conductive paths; and an outer member that includes a plurality of leading outer members, each having a tubular shape that passes along the one or more conductive paths; and a watercrosslinkable fixing member or a photocrosslinkable fixing member that bonds adjacent leading outer members of the plurality of leading outer members which are separate away from each other in a longitudinal direction of the one or more conductive paths.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: November 24, 2015
    Assignee: YAZAKI CORPORATION
    Inventor: Eiichi Toyama
  • Patent number: 9112287
    Abstract: A swaging structure is provided with a tubular metal foil member made of metal foil. The swaging connection structure is the one that a ring-shaped swaging member is swaged so as to include an area of main contact with a plurality of points or plurality of lines and an area of main contact with area, and thereby to electrically and mechanically contact the tubular metal foil member and a tubular connection part. The swaging connection member is also made a connection structure arranged such that an edge of a circumferential edge part of the ring-shaped swaging member is arranged not to contact with the tubular metal foil member.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: August 18, 2015
    Assignee: Yazaki Corporation
    Inventors: Eiichi Toyama, Shigemi Hashizawa
  • Patent number: 9071042
    Abstract: The present invention provides a wiring harness having a flexible tube body being an exterior component of a conducting path, and a manufacturing method thereof. The wiring harness has a conducting path assembly including a conducting path and a flexible tube body being an exterior component of the conducting path assembly. The tube body has a water or light hardening fixing member. When the water or light hardening fixing member is hardened, a shape holding portion is formed. The wiring harness is held by the shape holding portion of the tube body with a desired shape.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: June 30, 2015
    Assignee: Yazaki Corporation
    Inventor: Eiichi Toyama
  • Patent number: 9050934
    Abstract: A wire harness having good heat-release performance as well as having simple structure and configuration and can be manufactured at low cost is provided. Also, the wire harness which can fulfill electromagnetic shield function is provided. A wire harness 21 includes a thick high-voltage electric wire 22 which electrically connects an inverter 4 and a battery 5, a tubular protection member 23 arranged outside of the high-voltage electric wire 22 so the high-voltage electric wire is passed therethrough, and a heat-transfer-and-shield member 24 made of metal. The tubular protection member 23 includes a cylindrical circular pipe 26 having good heat-release performance, two corrugated tubes 32 and two protectors 33. The heat-transfer-and-shield member 24 is one component constituting the high-voltage electric wire 22 and is arranged in indirect contact with an inner face 27 of the circular pipe 26.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: June 9, 2015
    Assignee: Yazaki Corporation
    Inventors: Eiichi Toyama, Shigemi Hashizawa
  • Patent number: 9045092
    Abstract: A wiring harness includes: a harness main body having a plurality of high voltage electrically conductive paths; and a half pipe as a harness attachment member. The half pipe is formed in a substantially roof gutter shape. The half pipe is provided on a cabling target portion of a vehicle floor where the harness main body is cabled and fixed to the vehicle floor with the substantially roof gutter shape.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: June 2, 2015
    Assignee: Yazaki Corporation
    Inventors: Eiichi Toyama, Shigemi Hashizawa, Tatsuya Oga, Hidehiro Ichikawa
  • Patent number: 9006939
    Abstract: A wiring arrangement of a wiring harness 41 at an underfloor 34 is finished by arranging a connecting member 43 to a position of a through-hole 35, by extending a sheath 48 on the underfloor 34 parallel to the underfloor 34 while the sheath 48 is received in a wire protect member 44, and by fixing a terminal fixing member 45 and the wire protecting member 44 to the underfloor 34. After such a wiring arrangement, the wiring harness 41 is electrically connected to a junction block 31 around the through-hole 35 by mounting a battery 25 or the like.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: April 14, 2015
    Assignee: Yazaki Corporation
    Inventors: Eiichi Toyama, Shigemi Hashizawa
  • Patent number: 8982570
    Abstract: There is provided an electrically conductive path device which can prevent radiation noise. An electrically conductive path device includes three bus bars electrically connecting a motor unit to an inverter unit, capacitance portions creating stray capacitance and an insulator. In terms of the electrically conductive path device, switching operation of a semiconductor switch located inside an inverter of the inverter unit creates change in voltage which is transmitted to the bus bar corresponding to a path from the inverter to the motor. At that time, the change in voltage is not transmitted further to the motor but is transmitted to the bus bar corresponding to a path from the motor to the inverter via the capacitance portion formed between the facing portions, i.e. via the stray capacitance.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: March 17, 2015
    Assignee: Yazaki Corporation
    Inventors: Eiichi Toyama, Kazuyuki Ogawa
  • Publication number: 20150008033
    Abstract: A wire harness includes one or more electrically-conducting paths, a tubular shielding member configured to collectively accommodate the electrically-conducting paths, a braided shielding member including a cylindrical braided member and connected to an end of the tubular shielding member, and an annular crimping member including a fixing portion which fixedly connects the braided shielding member and the tubular shielding member by crimping, and a bent portion which is formed by bending an open end of the fixing portion to outside of the fixing portion.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 8, 2015
    Applicant: YAZAKI CORPORATION
    Inventors: Eiichi TOYAMA, Shigemi HASHIZAWA
  • Publication number: 20140238719
    Abstract: A high voltage wire harness for use in an automobile includes one or a plurality of high voltage conductive paths, a metallic tubular body and a high voltage recognition component. The high voltage conductive paths are routed in an automobile. The metallic tubular body is adapted to serve as an exterior cladding member for the high voltage conductive paths. The high voltage recognition component is capable of letting a worker recognize that the wire harness includes a high voltage is retrofitted to an exterior surface side of the metallic tubular body.
    Type: Application
    Filed: May 5, 2014
    Publication date: August 28, 2014
    Applicant: YAZAKI CORPORATION
    Inventors: Shinichi INAO, Eiichi TOYAMA