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: 20150380181
    Abstract: An electronic component includes a main body section having a rectangular parallelepiped shape and a plurality of terminal portions having different rigidities. A housing member includes a first housing chamber that guides and receives the main body section therein and a second housing chamber that receives and holds terminal fittings therein, the first housing chamber is formed by surrounding four sides thereof with a frame-like wall portion rising upright from a bottom portion, and the second housing chamber is formed outside the wall portion. Each terminal portion includes a base end and a fitting portion that extends from a protruding tip of the base end 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.
    Type: Application
    Filed: September 8, 2015
    Publication date: December 31, 2015
    Applicant: YAZAKI CORPORATION
    Inventor: Yukihiro KAWAMURA
  • Publication number: 20150380182
    Abstract: An electronic component includes a rectangular parallelepiped main body portion and at least one terminal portion which is provided in the main body portion, wherein a housing member includes a first housing chamber which guides and accommodates the main body portion and a second housing chamber which accommodates and holds a terminal fitting, the first housing chamber is formed by surrounding with a frame-shaped wall portion uprightly raised from a bottom portion on every side, the second housing chamber is formed at an outside with the wall portion interposed therebetween, the terminal portion includes a base end and a fitting portion which extends from a protruding front end of the base end along a side surface of the main body portion while being separated from the side surface and is fitted to the terminal fitting.
    Type: Application
    Filed: September 8, 2015
    Publication date: December 31, 2015
    Applicant: YAZAKI CORPORATION
    Inventor: Yukihiro KAWAMURA
  • Publication number: 20150382497
    Abstract: An electronic component having plural lead terminals protruding from side surfaces of a component main body is inserted and accommodated in a housing member, and the lead terminals are brought into contact with plural terminal fittings held in the housing member to assemble the electronic component into the housing member. Each of the lead terminals includes a base end protruding from at least one side surface of the component main body and a contact portion connected to the base end to droop along the side surface. The component main body is provided with an insulating member which is located to contact or face the base ends from a side of an end surface of the component main body which is most distant from a bottom wall of the housing member in assembling the electronic component into the housing member. Accordingly, it is possible to suppress deformation of the lead terminals.
    Type: Application
    Filed: September 9, 2015
    Publication date: December 31, 2015
    Applicant: Yazaki Corporation
    Inventor: Yukihiro KAWAMURA
  • Publication number: 20150364836
    Abstract: A method for manufacturing a crimp terminal having a crimp portion adapted to allow crimp connection with a coated wire having a conductor and an insulating coating, the crimp portion being adapted to crimp connect along the coated wire from a portion of the conductor coated with the insulating coating to a portion of the conductor exposed from the insulating coating at a tip of the coated wire includes providing a barrel member formed by arranging edges of a copper alloy plate material side-by-side, the barrel member having a diameter reducing on an end portion side in a longitudinal direction from a coating crimp portion, forming the crimp portion by welding the edges by laser irradiation from a laser irradiation unit onto a position where the edges are arranged side-by-side, while moving a laser light irradiation position in a longitudinal direction of the barrel member, and irradiating laser light with an output power density and a sweep rate for causing fine molten metal particles having a diameter of 60
    Type: Application
    Filed: August 21, 2015
    Publication date: December 17, 2015
    Inventors: Saburo YAGI, Yasushi KIHARA, Yukihiro KAWAMURA
  • Publication number: 20150364835
    Abstract: In a method of manufacturing a connection structural body where an insulated wire and a crimp terminal are connected by crimping to each other by the crimping section, the crimping section is configured to have a hollow cross-sectional shape, and is formed by arranging a conductor crimping section which crimps a conductor tip and a cover crimping section which crimps a cover tip in this order from a distal end side to a proximal end side in a long length direction, a portion on the distal end side of the crimping section is sealed, and the crimping of the conductor crimping section is started prior to the crimping of the cover crimping section at the time of connecting the crimping section to the wire tip by crimping.
    Type: Application
    Filed: August 21, 2015
    Publication date: December 17, 2015
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS, INC.
    Inventors: Takashi TONOIKE, Yukihiro KAWAMURA, Masakazu KOZAWA, Takurou YAMADA, Kyota SASAI, Akira TACHIBANA
  • Publication number: 20150364833
    Abstract: To provide a connection structure that can be crimped and connected in a desired crimping shape to the electric wire tip portion of an insulated wire without causing the deformation into an unintended crimping shape of the crimping portion of a crimp terminal. When crimping a conductor crimping portion (30a) of crimp terminal (10) to an electric wire tip portion (200a) of insulated wire (200), outer peripheral contact portions (613, 613) of a lower blade (61) of a crimping device (60A) and an outer peripheral contact portion (623) of an upper blade (62) are point-contacted to an outer periphery of a conductor crimping portion (30a) in a perpendicular cross section in a direction perpendicular to a longitudinal direction X and to a crimping direction Z so as to be left-right symmetrical with respect to a reference plane formed by the longitudinal direction (x) and the crimping direction (Z).
    Type: Application
    Filed: August 21, 2015
    Publication date: December 17, 2015
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS, INC.
    Inventors: Takashi TONOIKE, Yukihiro Kawamura
  • Publication number: 20150364834
    Abstract: To provide a method and a device for manufacturing a connection structure (1) and a wire harness (2). The connection structure connects an insulated wire (100) comprising a wire tip portion (103), an insulating covering (102) being stripped from the tip thereof, to a crimp terminal (200) comprising a closed-barrel-type crimping portion (230) allowing crimp connection with the wire tip portion (103) and has stable conductivity by crimping an aluminum core wire (101) by the crimping portion (230). The method comprises a carrier cutting step for separating crimp terminals (200) from a terminal connecting belt (300) comprising the crimp terminals (200) attached to a carrier (250) in a longitudinal direction, a wire insertion step for inserting wire tip portions (103) into the crimping portions (230) of the separated crimp terminals (200), and a crimping step for crimping the crimping portions (230) with the inserted wire tip portions (103).
    Type: Application
    Filed: August 21, 2015
    Publication date: December 17, 2015
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS, INC.
    Inventors: Yukihiro KAWAMURA, Satoshi TAKAMURA, Takeshi HYOTANI, Koichi KITAGAWA, Eiji ARAMAKl
  • Publication number: 20150364270
    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: Application
    Filed: August 26, 2015
    Publication date: December 17, 2015
    Applicant: YAZAKI CORPORATION
    Inventors: Yukihiro KAWAMURA, Hiroaki YAMADA
  • Publication number: 20150364838
    Abstract: The terminal connection strip includes: a carrier formed in a strip shape; and a plurality of terminal fitting which project from at least one edge side of the carrier in a width direction. The terminal fitting includes a crimping section which connects by crimping at least a conductor tip of an insulated wire provided with the conductor tip where a conductor is covered with an insulating cover and the conductor is exposed by peeling off the insulating cover on a distal end side of the insulated wire to the terminal fitting. The crimping section is formed into a hollow shape which allows the insertion of at least the conductor tip from a proximal end side of the crimping section and allows the crimping section to surround the conductor tip.
    Type: Application
    Filed: August 21, 2015
    Publication date: December 17, 2015
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS, INC.
    Inventors: Takashi Tonoike, Yukihiro Kawamura, Saburo Yagi, Satoshi Takamura, Takeshi Hyotani, Koichi Kitagawa, Eiji Aramaki
  • Publication number: 20150357782
    Abstract: A wire crimping device includes: a wire crimping unit which crimps a crimping section into which a wire tip is inserted from a wire insertion opening which opens on a proximal end side of the crimping section in a long length direction; and a guiding unit which guides a distal end portion of an aluminum lead line to the wire insertion opening of a female crimp terminal arranged at a predetermined position for being crimped by the wire crimping unit, wherein an inner diameter of an opposedly facing portion of the guiding unit which opposedly faces the wire insertion opening is set in conformity with an inner diameter of the wire insertion opening.
    Type: Application
    Filed: August 21, 2015
    Publication date: December 10, 2015
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Yukihiro KAWAMURA, Satoshi Takamura, Takeshi Hyotani, Koichi Kitagawa, Eiji Aramaki
  • Publication number: 20150340772
    Abstract: A crimp terminal that can maintain excellent water-stop performance over a long term and is enhanced in joint strength between a fitting portion and a covered electrical wire connection portion. The crimp terminal has a fitting portion at a tip thereof and an electrical wire connection portion at a rear end thereof, the electrical wire connection portion is configured in a tubular shape, a tip of the tube is crushed to be superimposed and closed, and a portion between the fitting portion and the electrical wire connection portion is formed by superimposing and bending two or more sheets of a plate material.
    Type: Application
    Filed: July 30, 2015
    Publication date: November 26, 2015
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Yukihiro KAWAMURA, Takashi Tonoike, Takuro Yamada, Masakazu Kozawa, Daisuke Takahashi, Masafumi Kawata, Tomohiro Yamazaki, Hiroaki Kobayashi
  • Publication number: 20150333416
    Abstract: A barrel portion which allows the pressure-bonding connection of an aluminum core wire exposed on a distal end of an insulated wire covered with an insulating cover is formed into a cylindrical shape by bending barrel portion corresponding portions of a terminal base material in a terminal developed state about a terminal axis. In abutting end portions where the barrel portion corresponding portions abut each other, a welded part which welds the end portions is formed along a long length direction of the insulated wire. The welded part is formed on an upper surface concave portion and a projecting portion where an amount of plastic deformation of a conductor pressure-bonding section generated along with the pressure-bonding of the conductor pressure-bonding section becomes larger compared to other portions in a circumferential direction of the conductor pressure-bonding section.
    Type: Application
    Filed: July 23, 2015
    Publication date: November 19, 2015
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Yasushi KIHARA, Akira TACHIBANA, Saburo YAGI, Yukihiro KAWAMURA, Takashi TONOIKE
  • Patent number: 9118123
    Abstract: A crimp terminal includes; a crimping portion and a cover covering the conductor portion, the crimping portion is formed in a hollow cylindrical shape in cross section and has a first end portion and a second end portion opposite to the first end portion. The conductor portion is inserted into the first end portion in a longitudinal direction, and the second end is sealed. The second end portion at the opposite side is sealed by welding. The crimping portion, in which the exposed conductor portion is crimped, further includes a locking section locking the exposed conductor portion. A length between the first end portion into which the conductor portion is inserted and a portion, of the locking section, that is the closest to the first end portion is larger than a length of the exposed conductor portion of the insulated wire.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: August 25, 2015
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Yukihiro Kawamura, Takashi Tonoike, Takuro Yamada
  • Publication number: 20150229039
    Abstract: In a terminal connection method of inserting a wire tip of an insulated wire, which is formed by stripping a front end of an insulating cover to expose an aluminum core wire, into a pressure-bonding section of a female crimp terminal to pressure bond the insulated wire to the female crimp terminal via the pressure-bonding section, signs are formed on the outer circumferential face of an insulated tip of the insulating cover at a distance of an internal length of the pressure-bonding section from a conductor tip face of the conductor tip, and the wire tip is inserted up to the signs in the pressure-bonding section to pressure-bond the wire tip to the pressure-bonding section.
    Type: Application
    Filed: April 21, 2015
    Publication date: August 13, 2015
    Applicants: Furukawa Electric Co., LTD., Furukawa Automotive Systems Inc.
    Inventors: Yukihiro KAWAMURA, Takashi TONOIKE, Satoshi TAKAMURA, Takeshi HYOTANI, Koichi KITAGAWA, Eiji ARAMAKI
  • Patent number: 9065261
    Abstract: A connecting structure is applied for connecting an electric wire and a terminal. For coating a connecting portion of a conductor of the electric wire and the terminal, which form a wire harness, with a coating resin, a portion of an insulator, which is to be inserted into a terminal insertion hole of a connector housing, is subjected to a diameter reduction process such that an outer diameter of the coating resin coated on the insulator is smaller than the terminal insertion hole.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: June 23, 2015
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Yukihiro Kawamura, Satoshi Takamura, Katsunori Takeda
  • Publication number: 20150163943
    Abstract: Provided is an electronic component assembly that can reduce a housing space in a fitting direction of a bus bar and a terminal fitting. An electronic component assembly includes a relay, a diode, a plurality of bus bars, and a plate-shaped resin member. The relay has a relay main body having a rectangular parallelepiped outer shape, and a plurality of terminal portions protruding from a bottom surface of the relay main body. The plurality of bus bars is configured such that one end side is soldered to a terminal portion of the relay or a terminal portion of the diode, and the other end is fitted to a terminal fitting. The one end sides of the plurality of bus bars are embedded in the resin member.
    Type: Application
    Filed: February 11, 2015
    Publication date: June 11, 2015
    Inventor: Yukihiro Kawamura
  • Publication number: 20150155121
    Abstract: Provided is an electronic component that can reduce housing space in the fitting direction of terminals and terminal fittings. A relay has a relay main body of which the outer shape is a rectangular solid, and a plurality of plate-shaped terminals that protrudes from the relay main body and that is fitted in the terminal fittings. The relay main body has a top surface and a bottom surface opposite the top surface, opposite lateral surfaces, and opposite lateral surfaces. The terminals of the relay are four terminals, with two protruding from the lateral surface and two protruding from the opposite lateral surface. Specifically, the terminals protrude from the lateral surfaces parallel to the fitting direction of the terminal fittings and the terminals in the relay main body. These terminals protrude from the lateral surfaces and bend perpendicularly toward the bottom surface.
    Type: Application
    Filed: February 11, 2015
    Publication date: June 4, 2015
    Inventor: Yukihiro Kawamura
  • Publication number: 20150155673
    Abstract: A cover stripping step of peeling off an insulating cover on a distal end side of an insulated wire to form a wire tip; a marking step of forming a marking on the insulating cover at a predetermined position; a first marking inspection step of inspecting a stripping state and the marking; a wire insertion step of inserting the wire tip into a closed-barrel-type pressure-bonding section; a pressure-bonding step of pressure-bonding the pressure-bonding section to be connected to the wire tip; and a second marking inspection step of inspecting a pressure-bonded state of the pressure-bonding section to the wire tip using the marking are performed in this order, and the first marking inspection step and the second marking inspection step are performed using the same inspection step part.
    Type: Application
    Filed: February 3, 2015
    Publication date: June 4, 2015
    Applicants: Furukawa Electric Co., Ltd., Furukawa Automotive Systems, Inc.
    Inventors: Yukihiro KAWAMURA, Satoshi TAKAMURA, Takeshi HYOTANI, Koichi KITAGAWA, Eiji ARAMAKI, Kouki FUKUNAGA
  • Publication number: 20150126078
    Abstract: In a female crimp terminal including a pressure-bonding section for permitting pressure-bonding and connection to an aluminum core wire of an insulated wire, the pressure-bonding section is configured in a hollow sectional shape by a plate material, and a long length direction weld portion in a long length direction is welded, a forward part in the hollow sectional shape is caused to take an almost flat plate-shaped sealing shape and a width direction weld portion in a width direction is welded.
    Type: Application
    Filed: January 5, 2015
    Publication date: May 7, 2015
    Applicants: Furukawa Electric Co., Ltd., Furukawa Automotive Systems, Inc.
    Inventors: Yukihiro KAWAMURA, Satoshi TAKAMURA, Takashi TONOIKE, Yasushi KIHARA, Saburo YAGI, Takashi SHIGEMATSU, Kengo MITOSE, Takashi KAYAHARA
  • Publication number: 20150126079
    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: Application
    Filed: October 22, 2014
    Publication date: May 7, 2015
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Yukihiro KAWAMURA, Yasushi Kihara, Hiroshi Orito, Takashi Tonoike