Patents by Inventor Yukihiro Kawamura

Yukihiro Kawamura 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: 20160141131
    Abstract: A connection structure of an electronic component and terminal metal fittings includes a relay including a relay body and a plurality of terminals, terminal metal fittings mating with the terminals, and a holding member. The terminals have end portions facing side surfaces of the relay body, and their leading ends are positioned closer to a top surface side than a bottom surface of the relay body. At a side surface, a first terminal and a second terminal that is more rigid than the first terminal are disposed. The holding member includes a component body accommodating portion, a first terminal accommodating portion, and a second terminal accommodating portion. A gap dimension between the first terminal and an insertion slot of the first terminal accommodating portion is larger than a gap dimension between the second terminal and an insertion slot of the second terminal accommodating portion.
    Type: Application
    Filed: January 21, 2016
    Publication date: May 19, 2016
    Applicant: Yazaki Corporation
    Inventor: Yukihiro KAWAMURA
  • Publication number: 20160126642
    Abstract: A crimp terminal has a crimp portion that is formed by bending a plate material into a hollow shape and that has at one end thereof an opening capable of accommodating and crimping a conductor portion of a coated wire. The crimp terminal includes a first weld portion obtained by bringing two edge portions of the crimp portion in close proximity to each other and joining by laser welding, and a second weld portion obtained by forming a lapped portion by overlapping of a transition portion formed at an opposite end of the crimp portion to the opening, and closing the lapped portion by laser welding. A welding trajectory in the second weld portion is constituted by a curve, a plurality of straight lines, or a discontinuously formed line.
    Type: Application
    Filed: December 24, 2015
    Publication date: May 5, 2016
    Inventors: Takashi Tonoike, Yukihiro Kawamura, Saburo Yagi, Katsunori Takeda, Mikio Kuwahara
  • Publication number: 20160118754
    Abstract: A connection structure of an electronic component and terminal metal fittings includes a relay in which a plurality of terminals are projected from a relay body having a rectangular parallelepiped shape, terminal metal fittings that are fitted in the respective terminals, and a holding member in which the relay and the terminal metal fittings are accommodated. The holding member has a component body accommodating portion that accommodates the relay body, terminal accommodating portions each accommodating the distal end portion of corresponding one of the terminals and corresponding one of the terminal metal fittings, a groove portion that positions an erroneous-insertion prevention projecting portion therein when the relay is inserted in a normal orientation, and a contact portion that is brought into contact with the erroneous-insertion prevention projecting portion when the relay is inserted in an erroneous orientation.
    Type: Application
    Filed: December 29, 2015
    Publication date: April 28, 2016
    Applicant: Yazaki Corporation
    Inventor: Yukihiro KAWAMURA
  • Patent number: 9320162
    Abstract: An electronic component includes a housing formed to have a box shape, and a terminal derived from inside to outside of the housing to be exposed and extending along a wall surface of the housing. The housing includes a pair of projecting portions formed by causing both external ends of end portions in an end surface on a side where the terminal is derived to project beyond the terminal. The external ends are external ends in a width direction crossing an extending direction in which the terminal extends. The end portions are located on a deriving source side in the extending direction. The terminal has an exposed portion that is located on an imaginary plane, or closer to the wall surface than the imaginary plane is. The imaginary plane includes a pair of corner portions of the wall surface facing the terminal and end portions of the projecting portions.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: April 19, 2016
    Assignee: Yazaki Corporation
    Inventors: Yukihiro Kawamura, Hiroaki Yamada
  • Patent number: 9318815
    Abstract: An insulating body-forming part is formed on a border between a surface of a crimp terminal formed of an aluminum material and a conductive contact body provided on the surface and containing a nobler metal material than the aluminum material.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: April 19, 2016
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Kengo Mitose, Naoya Takashima, Yukihiro Kawamura
  • Patent number: 9306356
    Abstract: In an electrical wire connecting structure and a method of manufacturing the electrical wire connecting structure, a terminal having a tube-shaped portion of 2.0 mm in inner diameter is prepared for an electrical wire having a conductor cross-sectional area of 0.72 to 1.37 mm2, the electrical wire 13 is inserted into an electrical wire insertion port of the tube-shaped portion of the electrical wire, and the tube-shaped portion and the core wire portion of the electrical wire are compressed to be crimp-connected to each other. Furthermore, a terminal having a tube-shaped portion of 3.0 mm in inner diameter is prepared for an electrical wire having a conductor cross-sectional area of 1.22 to 2.65 mm2, the electrical wire is inserted into the electrical wire insertion port of the tube-shaped portion 25 of the electrical wire, and the tube-shaped portion and the core wire portion of the electrical wire are compressed to be crimp-connected to each other.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: April 5, 2016
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Akira Tachibana, Kengo Mitose, Kyota Susai, Takao Tateyama, Yukihiro Kawamura, Takashi Tonoike, Masakazu Kozawa, Takuro Yamada
  • Patent number: 9293276
    Abstract: An electronic component including a lead terminal is inserted into a housing member, and the lead terminal is fitted to a terminal fitting held by the housing member, so that the electronic component is assembled to the housing member. The lead terminal includes a connection portion which is continuous to a base end and is suspended along a side surface of a component main body. The housing member includes a first housing chamber which accommodates the component main body and a second housing chamber which holds the terminal fitting, the first housing chamber is surrounded by a frame-shaped wall portion. The terminal fitting is disposed so as to face the side surface of the component main body, in which a spring portion pressing the connection portion is accommodated in the first housing chamber, with the wall portion interposed therebetween.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: March 22, 2016
    Assignee: Yazaki Corporation
    Inventors: Yukihiro Kawamura, Hiroaki Yamada
  • Patent number: 9287634
    Abstract: The present invention has an object of providing a crimp terminal capable of maintaining a high level of water-blocking performance for a long time in a state of being pressure-bonded to an insulated wire, a connection structural body including the same, and a connector including such a connection structural body.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: March 15, 2016
    Assignees: Furukawa Electric Co., Ltd., Furukawa Automotive Systems, Inc.
    Inventors: Yukihiro Kawamura, Takashi Tonoike
  • Patent number: 9281574
    Abstract: A crimp terminal includes a pressure-bonding section to which at least a conductor tip of an insulated wire is connected by pressure bonding, the insulated wire in which a conductor is covered with an insulating cover and an insulating cover on a tip side is peeled to expose the conductor to obtain the conductor tip, and a terminal connection section to which another connection terminal is allowed to be connected. The terminal connection section and the pressure-bonding section are configured as different parts, and a connection section in which the terminal connection section and the pressure-bonding section are connected in series in the order named from a tip side to a rear side in a long length direction is configured.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: March 8, 2016
    Assignees: Furukawa Electric Co., Ltd., Furukawa Automotive Systems, Inc.
    Inventors: Yukihiro Kawamura, Takashi Tonoike, Saburo Yagi
  • Publication number: 20160049780
    Abstract: An electronic component unit includes an electronic component having a plurality of terminals that are exposed outside a housing and extend along wall surfaces of the housing, a holding member holding opposite terminals into which the terminals are fitted, and a leakage-blocking structure. The leakage-blocking structure has housing-side wall surfaces provided to the housing of the electronic component and interposed between the terminals adjacent to each other in an alignment direction of the terminals, holding-member-side wall surfaces provided to the holding member and interposed between the terminals adjacent to each other in the alignment direction of the terminals, and overlapping portions formed in such a manner that the housing-side wall surfaces overlap the holding-member-side wall surfaces in the alignment direction of the terminals.
    Type: Application
    Filed: August 10, 2015
    Publication date: February 18, 2016
    Applicant: YAZAKI CORPORATION
    Inventor: Yukihiro KAWAMURA
  • Publication number: 20160050777
    Abstract: An electronic component includes a housing formed to have a box shape, and a terminal derived from inside to outside of the housing to be exposed and extending along a wall surface of the housing. The housing includes a pair of projecting portions formed by causing both external ends of end portions in an end surface on a side where the terminal is derived to project beyond the terminal. The external ends are external ends in a width direction crossing an extending direction in which the terminal extends. The end portions are located on a deriving source side in the extending direction. The terminal has an exposed portion that is located on an imaginary plane, or closer to the wall surface than the imaginary plane is. The imaginary plane includes a pair of corner portions of the wall surface facing the terminal and end portions of the projecting portions.
    Type: Application
    Filed: August 11, 2015
    Publication date: February 18, 2016
    Applicant: Yazaki Corporation
    Inventors: Yukihiro KAWAMURA, Hiroaki YAMADA
  • Publication number: 20160050779
    Abstract: A mounting structure of an electronic component includes an electronic component, a housing member, a counterpart terminal, and at least one locking mechanism. The electronic component includes: an electronic component main body; a housing formed by assembling a casing member in which a chamber for the electronic component main body is formed and a base member to which the electronic component main body is attached; and a terminal exposed from the chamber to outside of the housing. The housing member includes a housing space including: a first chamber that accommodates the housing; and a second chamber that accommodates a terminal. The counterpart terminal is fitted into the second chamber and electrically coupled to the terminal. The locking mechanism maintains the accommodation state of the electronic component to the housing member by engaging a first engaging part and a second engaging part.
    Type: Application
    Filed: August 10, 2015
    Publication date: February 18, 2016
    Applicant: YAZAKI CORPORATION
    Inventor: Yukihiro KAWAMURA
  • Publication number: 20160049779
    Abstract: An electronic component unit includes an electronic component including an electronic component main body, a holding member with a plate-shaped base holding the electronic component main body, and a terminal electrically connected to the electronic component main body; a housing member including a housing space that houses the electronic component with a first housing chamber for housing the electronic component main body and a second housing chamber for housing the terminal of the electronic component; and a counterpart terminal fitted to the second housing chamber and electrically connected to the terminal when the electronic component is housed in the housing space. The terminal is disposed inside of a virtual space formed by projecting the base in the inserting direction of the electronic component toward the housing space. The base is used as a lid to cover an opening of the housing space to which the electronic component is inserted.
    Type: Application
    Filed: August 10, 2015
    Publication date: February 18, 2016
    Applicant: YAZAKI CORPORATION
    Inventor: Yukihiro KAWAMURA
  • Patent number: 9263808
    Abstract: There is provided a pressure-bonding connection structural body and a female connector which can surely prevent the intrusion of moisture from an insulating cover side, and a method of manufacturing the connection structural body. In the connection structural body which is configured by connecting a crimp terminal and an insulated wire to each other, the crimp terminal having a barrel portion which is an integral body formed of; a cover pressure-bonding section which pressure-bonds by caulking the insulating cover; and a core wire pressure-bonding section which pressure-bonds an aluminum core wire by caulking, a water blocking projecting portion which prevents the intrusion of moisture in a longitudinal direction in a pressure-bonding state is formed, at the time of pressure-bonding the barrel portion, on an inner surface of the cover pressure-bonding section of the barrel portion where a cross-sectional shape in a width direction is formed into a closed cross-sectional shape.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: February 16, 2016
    Assignees: Furukawa Electric Co., Ltd., Furukawa Automotive Systems, Inc.
    Inventors: Yukihiro Kawamura, Takashi Tonoike, Satoshi Takamura
  • Publication number: 20160027599
    Abstract: An electronic component includes a component main body having a rectangular parallelepiped shape and a plurality of lead terminals, and each lead terminal is disposed to droop along a side surface of the component main body facing the lead terminal. The plurality of lead terminals having different rigidities are arranged in a width direction of at least one side surface of the component main body, and the lead terminal having a highest rigidity among the plurality of lead terminals is disposed to protrude more in a direction in which it gets apart from the corresponding side surface of the component main body than the other lead terminals. Accordingly, it is possible to prevent deformation of the lead terminal.
    Type: Application
    Filed: October 1, 2015
    Publication date: January 28, 2016
    Applicant: YAZAKI CORPORATION
    Inventor: Yukihiro KAWAMURA
  • Publication number: 20160020049
    Abstract: An electronic component includes a main body section having a rectangular parallelepiped shape and terminal portions disposed in the main body section. A housing member includes a first housing chamber that guides and accommodates the main body section therein and a second housing chamber that accommodates and holds terminal fittings therein. Each terminal portion includes a fitting portion that droops along a side surface of the main body section with a gap from the side surface and that is fitted to the corresponding terminal fitting. Each terminal fitting includes a spring portion that presses the corresponding fitting portion, and a pressing direction of the spring portion is held to direct to the corresponding wall portion. The electronic component, the terminal fittings, and the housing member are mutually assembled.
    Type: Application
    Filed: September 28, 2015
    Publication date: January 21, 2016
    Applicant: Yazaki Corporation
    Inventor: Yukihiro KAWAMURA
  • Publication number: 20160020050
    Abstract: An electronic component including a component main body and a plurality of lead terminals is inserted and accommodated in a housing member, the lead terminals are brought into contact with a plurality of terminal fittings held in the housing member. The lead terminals are formed such that at least one of the number of lead terminals on each side surface before and after the reversing, a distance between the contact portion and the side surface of the component main body facing the contact portion, and a width dimension in a direction perpendicular to the extending direction of the contact portion differs, when the component main body is rotated at 180 degrees to reverse the positions of the pair of opposite side surfaces of the component main body. Accordingly, it is possible to prevent improper assembly of an electronic component.
    Type: Application
    Filed: September 30, 2015
    Publication date: January 21, 2016
    Applicant: Yazaki Corporation
    Inventor: Yukihiro KAWAMURA
  • Patent number: 9240635
    Abstract: In a female crimp terminal having a pressure-bonding section which allows pressure-bonding and connection of a conductor tip in an insulated wire obtained by coating a conductor with an insulating cover and having the conductor tip in which the conductor is exposed by peeling off the insulating cover in a tip side, the pressure-bonding section is constructed by arranging a conductor pressure-bonding section and a cover pressure-bonding section from a tip side to a base end side in a long length direction in this order, the conductor pressure-bonding section pressure-bonding the conductor tip, and the cover pressure-bonding section pressure-bonding a conductor tip portion in the tip side of the insulating cover, the cover pressure-bonding section is formed into a hollow shape which can surround the conductor tip portion, and the conductor pressure-bonding section is formed to have a smaller diameter than the cover pressure-bonding section, and is formed into a hollow shape which can surround the conductor tip.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: January 19, 2016
    Assignees: Furukawa Electric Co., Ltd., Furukawa Automotive Systems, Inc.
    Inventors: Yukihiro Kawamura, Yasushi Kihara, Hiroshi Orito, Takashi Tonoike
  • Publication number: 20160006228
    Abstract: An electronic component includes a main body section having a plurality of surfaces and a terminal portion that is disposed in the main body section and that is fitted to a terminal fitting. A housing member includes a first housing chamber that guides and accommodates the main body section and a second housing chamber that accommodates and holds the terminal fitting. The terminal portion includes a base end and a fitting portion that extends from a protruding tip of the base end and that is fitted to the terminal fitting. The fitting portion extends from the protruding tip of the base end, along a side surface of the main body section with a gap from the side surface, without causing an extending tip to protrude beyond the deep surface.
    Type: Application
    Filed: September 11, 2015
    Publication date: January 7, 2016
    Applicant: Yazaki Corporation
    Inventor: Yukihiro KAWAMURA
  • Publication number: 20160006159
    Abstract: An assembling structure of an electronic component includes an electronic component including a component main body having a plurality of lead terminals protruding from side surfaces of the component main body, and a housing member in which the electronic component is inserted and accommodated and which holds a plurality of terminal fittings connected to the lead terminals. Each lead terminal includes a base end protruding from at least one side surface of the component main body and a connecting portion which is connected to the base end and which droops along the side surface, and the plurality of lead terminals are provided to be protruded from at least one side surface of the component main body in the width direction of the side surface. The side surface of the component main body is provided with an insulating member.
    Type: Application
    Filed: September 11, 2015
    Publication date: January 7, 2016
    Applicant: Yazaki Corporation
    Inventor: Yukihiro KAWAMURA