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).

  • Publication number: 20140165392
    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: Application
    Filed: July 20, 2012
    Publication date: June 19, 2014
    Applicant: YAZAKI CORPORATION
    Inventors: Eiichi Toyama, Takashi Kato
  • Publication number: 20140138153
    Abstract: A high-voltage conduction path includes one conductor of a positive electrode conductor and a negative electrode conductor, a first insulator that is provided on the outside of the one conductor, the other conductor of the positive electrode conductor and the negative electrode conductor, the other conductor being provided on the outside of the first insulator, and a second insulator that is provided 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: Application
    Filed: January 24, 2014
    Publication date: May 22, 2014
    Applicant: Yazaki Corporation
    Inventors: Eiichi TOYAMA, Shigemi HASHIZAWA
  • Publication number: 20140131095
    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: Application
    Filed: January 22, 2014
    Publication date: May 15, 2014
    Applicant: YAZAKI CORPORATION
    Inventors: Eiichi TOYAMA, Shigemi HASHIZAWA
  • Publication number: 20140102782
    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: Application
    Filed: December 17, 2013
    Publication date: April 17, 2014
    Applicant: Yazaki Corporation
    Inventor: Eiichi TOYAMA
  • Publication number: 20140014395
    Abstract: A high-voltage conductive path and a wiring harness are provided. The wiring harness includes the 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. The high-voltage conductive path can save space, and easily perform pathway formation, and reduce cost.
    Type: Application
    Filed: January 20, 2012
    Publication date: January 16, 2014
    Applicant: YAZAKI CORPORATION
    Inventors: Eiichi Toyama, Tatsuya Oga, Shigemi Hashizawa, Eiji Shimochi
  • Publication number: 20130319758
    Abstract: The invention provides a wire harness that is low cost and has versatility regarding a wire holding. In a wire harness, a wire holder 17 is used to hold wires. The wire holder 17 is formed by bending a strip with stiffness. The wire holder 17 has a pair of retaining arms 24 that retain opposite ends of the bending part 20 respectively and a connecting arm 25 that connects the retaining arms 24. In the flexing portion 25, a first unbending stopper 26 of which an intermediate part is contacted at an inside curvature forming portion 22 closer than an outside curvature forming portion 21 of the bending part 20 is formed.
    Type: Application
    Filed: December 28, 2011
    Publication date: December 5, 2013
    Applicant: YAZAKI CORPORATION
    Inventor: Eiichi Toyama
  • Publication number: 20130306371
    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: Application
    Filed: December 28, 2011
    Publication date: November 21, 2013
    Applicant: YAZAKI CORPORATION
    Inventor: Eiichi Toyama
  • Publication number: 20130306344
    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: Application
    Filed: February 1, 2012
    Publication date: November 21, 2013
    Applicant: YAZAKI CORPORATION
    Inventors: Eiichi Toyama, Kazuyuki Ogawa
  • Publication number: 20130284484
    Abstract: To provide a protector which does not need an extensive facility or an extensive die, and a wiring harness having the protector. A half pipe working as a protector is made by hardening water-curable resin composition held in base material. The half pipe can be made in a facility for only hardening it having a simplified die, and can be formed and provided in a wiring harness production process, namely, can be formed and provided corresponding to a vehicle requirement. The half pipe includes: a main body portion having a shape of substantially half of a circular pipe; and an attaching portion continued to the main body portion. The main body portion includes a conductive line receiving portion for receiving a high voltage conductive line.
    Type: Application
    Filed: January 20, 2012
    Publication date: October 31, 2013
    Applicant: YAZAKI CORPORATION
    Inventor: Eiichi Toyama
  • Publication number: 20130277106
    Abstract: A wire harness of present invention comprises at least one conductive path, and an outer member that covers the conductive path. The outer member includes a plurality of leading outer members having a straight tube shape and through which the conductive path is passed in a leading manner and arranged with an inter-space, and a trailing outer member having a tube shape and successively connecting the leading outer members that are adjacent to each other so as to cover the inter-space.
    Type: Application
    Filed: December 28, 2011
    Publication date: October 24, 2013
    Applicant: YAZAKI CORPORATION
    Inventor: Eiichi Toyama
  • Publication number: 20130264114
    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: Application
    Filed: December 28, 2011
    Publication date: October 10, 2013
    Applicant: YAZAKI CORPORATION
    Inventor: Eiichi Toyama
  • Publication number: 20130256029
    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: Application
    Filed: December 7, 2011
    Publication date: October 3, 2013
    Applicant: YAZAKI CORPORATION
    Inventor: Eiichi Toyama
  • Publication number: 20130140054
    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: Application
    Filed: July 28, 2011
    Publication date: June 6, 2013
    Applicant: YAZAKI CORPORATION
    Inventors: Takashi Kato, Eiichi Toyama
  • Publication number: 20130118800
    Abstract: In order to provide with a wire harness capable of magnetic shielding for reducing restrictions of path design, a wire harness 21 is configured to include a wire harness body 23, connections 24 respectively formed on both ends of this wire harness body 23, and an exterior member 25 for protecting the wire harness body 23. The wire harness body 23 is configured to include two high-voltage electric wires 26, an electromagnetic shielding member 27 for collectively receiving the two high-voltage electric wires 26, and a magnetic shielding member 28 formed on the outside of the electromagnetic shielding member 27. The magnetic shielding member 28 is formed in a desired place. The wire harness body 23 combines both functions of electromagnetic shielding and magnetic shielding.
    Type: Application
    Filed: July 20, 2011
    Publication date: May 16, 2013
    Applicant: YAZAKI CORPORATION
    Inventor: Eiichi Toyama
  • Publication number: 20130112473
    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: Application
    Filed: July 14, 2011
    Publication date: May 9, 2013
    Applicant: YAZAKI CORPORATION
    Inventors: Eiichi Toyama, Shigemi Hashizawa
  • Publication number: 20130032393
    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: Application
    Filed: February 3, 2011
    Publication date: February 7, 2013
    Applicant: Yazaki Corporation
    Inventor: Eiichi Toyama
  • Publication number: 20130008710
    Abstract: There is provided a wiring harness able to increase flexibility of a production process, to improve workability, and to save weight. A wiring harness 21 includes: a harness main body 23 having a plurality of high voltage electrically conductive paths; and a half pipe 24 as a harness attachment member. The half pipe 24 is formed in a substantially roof gutter shape. The half pipe 24 is provided on a cabling target portion of a vehicle floor 10 where the harness main body 23 is cabled and fixed to the vehicle floor 10 with the substantially roof gutter shape.
    Type: Application
    Filed: February 7, 2011
    Publication date: January 10, 2013
    Applicant: Yazaki Corporation
    Inventors: Eiichi Toyama, Shigemi Hashizawa, Tatsuya Oga, Hidehiro Ichikawa
  • Publication number: 20130008711
    Abstract: A wire harness and a method for making the wire harness is provided which is capable of enhancing its occupancy in a pipe member and being wired receding from the ground as much as possible. The pipe member 24 is a tubular member which a harness main body 23 is passed through and is protected by, including a high-voltage electric wire 22, and disposed on the harness main body 23 where wiring is designed in a vehicle floor 10. Specifically, it is disposed in conformity with the harness main body 23 destined to be wired in the under floor 11. The pipe member 24 is formed such that a length H in a direction nearly perpendicular to the under floor is arranged smaller than a length in a direction nearly parallel to the under floor. The pipe member 24 is formed in a non-circular ellipse shape.
    Type: Application
    Filed: February 7, 2011
    Publication date: January 10, 2013
    Applicant: Yazaki Corporation
    Inventors: Eiichi Toyama, Shigemi Hashizawa, Tatsuya Oga, Hidehiro Ichikawa
  • Publication number: 20120312597
    Abstract: A swaging structure is provided, allowing to secure connection reliability or strength though a tubular metal foil member made of metal foil is included in its structure. 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: Application
    Filed: February 2, 2011
    Publication date: December 13, 2012
    Applicant: Yazaki Corporation
    Inventors: Eiichi Toyama, Shigemi Hashizawa
  • Publication number: 20120305308
    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: Application
    Filed: February 2, 2011
    Publication date: December 6, 2012
    Applicant: Yazaki Corporation
    Inventors: Eiichi Toyama, Shigemi Hashizawa