Patents by Inventor Kouichi Takagi

Kouichi Takagi 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: 7841869
    Abstract: A connector for a board and an electrical junction box that utilizes the connector are provided. The connector prevents adjacent terminal metals from causing a short circuit. Each connector housing includes a hood section having an inner wall. Protrusions are provided on an outer surface of each inner wall to project outward in a thickness direction of the inner wall. Openings around adjacent through-holes are shifted in the thickness direction of the inner wall. Thus, it is possible to increase a distance on surface between adjacent terminal metals inserted into the adjacent through-holes. The distance on the surface between adjacent terminal metals prevents water adhering to the terminals metals from short-circuiting the adjacent terminal metals.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: November 30, 2010
    Assignee: Sumitomo Wiring Co., Ltd.
    Inventors: Jun Yamaguchi, Kouichi Takagi
  • Patent number: 7775807
    Abstract: An electrical junction box has a casing for housing a circuit board on which electrically conductive paths are formed. Fuse-receiving sections in an upper wall of the casing are adapted to receive a mating member. Receiving ribs inward from an inside of a side wall of the casing at a position below the fuse-receiving sections to receive water that enters the casing from the fuse-receiving sections, guide ribs project inward from an inside of the side wall provided with the receiving ribs and extend from end edges of the receiving ribs to guide the water that is received on the receiving ribs to a bottom wall of the casing. A bottom wall of the casing defines drain holes.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: August 17, 2010
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Jun Yamaguchi, Kouichi Takagi
  • Publication number: 20090163053
    Abstract: An electrical junction box has a casing for housing a circuit board on which electrically conductive paths are formed. Fuse-receiving sections in an upper wall of the casing are adapted to receive a mating member. Receiving ribs inward from an inside of a side wall of the casing at a position below the fuse-receiving sections to receive water that enters the casing from the fuse-receiving sections, guide ribs project inward from an inside of the side wall provided with the receiving ribs and extend from end edges of the receiving ribs to guide the water that is received on the receiving ribs to a bottom wall of the casing. A bottom wall of the casing defines drain holes.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 25, 2009
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Jun Yamaguchi, Kouichi Takagi
  • Publication number: 20090137135
    Abstract: A connector for a board and an electrical junction box that utilizes the connector are provided. The connector prevents adjacent terminal metals from causing a short circuit. Each connector housing includes a hood section having an inner wall. Protrusions are provided on an outer surface of each inner wall to project outward in a thickness direction of the inner wall. Openings around adjacent through-holes are shifted in the thickness direction of the inner wall. Thus, it is possible to increase a distance on surface between adjacent terminal metals inserted into the adjacent through-holes. The distance on the surface between adjacent terminal metals prevents water adhering to the terminals metals from short-circuiting the adjacent terminal metals.
    Type: Application
    Filed: November 14, 2008
    Publication date: May 28, 2009
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Jun Yamaguchi, Kouichi Takagi
  • Patent number: 7518882
    Abstract: In respect to an electrical connection between a control circuit board 20 and bus bars 14 interbonded together, it is an object to enhance stability in quality and reliability in connection. As a solution for achieving the object, the control circuit board 20 is provided with a conductor segment 26 to be electrically connected to a specific one of the bus bars 14 on the opposite side of a rear surface thereof bonded to the bus bars 14, and a through-hole 24 penetrating a main body thereof at a position adjacent to the conductor segment 26 so as to expose the specific bus bar 14 therethrough. Further, an electrically-connecting member 70 is disposed to bridge over the through-hole 24 and the conductor segment 26, and soldered onto the conductor segment 26 and the bus bar portion located in the through-hole 24.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: April 14, 2009
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Toshiki Shimizu, Kouichi Takagi, Fumiaki Mizuno
  • Publication number: 20080080151
    Abstract: In respect to an electrical connection between a control circuit board 20 and bus bars 14 interbonded together, it is an object to enhance stability in quality and reliability in connection. As a solution for achieving the object, the control circuit board 20 is provided with a conductor segment 26 to be electrically connected to a specific one of the bus bars 14 on the opposite side of a rear surface thereof bonded to the bus bars 14, and a through-hole 24 penetrating a main body thereof at a position adjacent to the conductor segment 26 so as to expose the specific bus bar 14 therethrough. Further, an electrically-connecting member 70 is disposed to bridge over the through-hole 24 and the conductor segment 26, and soldered onto the conductor segment 26 and the bus bar portion located in the through-hole 24.
    Type: Application
    Filed: February 4, 2005
    Publication date: April 3, 2008
    Applicants: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Toshiki Shimizu, Kouichi Takagi, Fumiaki Mizuno
  • Patent number: 7215555
    Abstract: An integrated bus bar structure plate in which a plurality of bus bars are arranged on substantially the one plain face to form an electric power circuit, wherein after the bus bar structure plate having a whole shape in which a plurality of types of electric power circuits are formed by selecting any of the connection parts of the bus bars is separated is adhered to the control circuit board whereby, for example, a desired electric power circuit is formed among the connection parts of bus bars.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: May 8, 2007
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventor: Kouichi Takagi
  • Patent number: 7167377
    Abstract: A circuit-constituting unit forming a distribution circuit or the like in a vehicle. The circuit-constituting unit includes a plurality of bus bars for constituting a power circuit; a semiconductor switching device provided in the power circuit; and a control circuit board. The bus bars are bonded to a surface of the control circuit board such that the bus bars are arranged to be generally coplanar with each other. The semiconductor switching device is mounted on both of the corresponding bus bars and the control circuit board. An opening may be formed through the control circuit board. In this case, one of terminals of the semiconductor switching device may be connected to a surface of the control circuit board facing away from the surface to which the bus bars are bonded. The other terminals may be connected respectively to the bus bar through the opening.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: January 23, 2007
    Assignees: Sumitoo Wiring Systems, Ltd., Autonetworks Technologies, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Takahiro Onizuka, Isao Isshiki, Ryuji Nakanishi, Kouichi Takagi, Tou Chin, Shigeki Yamane
  • Publication number: 20060126316
    Abstract: A control circuit board has an end portion formed with a cut that is opened sideways. The cut is coated with a conductor layer. Upon connecting the control circuit board to a conductor such as a bus bar, solder is supplied so as to bridge the conductor layer and the bus bar in a state that the conductor layer is laid on the bus bar.
    Type: Application
    Filed: February 1, 2006
    Publication date: June 15, 2006
    Applicants: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Kouichi Takagi, Fumiaki Mizuno
  • Publication number: 20040242086
    Abstract: An integrated bus bar structure plate in which a plurality of bus bars are arranged on substantially the one plain face to form an electric power circuit, wherein after the bus bar structure plate having a whole shape in which a plurality of types of electric power circuits are formed by selecting any of the connection parts of the bus bars is separated is adhered to the control circuit board whereby, for example, a desired electric power circuit is formed among the connection parts of bus bars.
    Type: Application
    Filed: March 11, 2004
    Publication date: December 2, 2004
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Kouichi Takagi
  • Patent number: 6819729
    Abstract: A digital PLL pulse generator includes a delay-chain section having a plurality of delay elements forming delayed clock signals with different delayed states; a synchronized-signal detecting section to detect a plurality of delayed clock signals, and to output synchronizing information; a pulse forming section to form an output pulse having a desired pulse width and a desired timing by selecting a desired delayed clock signal, based on the synchronizing information and pulse forming information for forming a desired pulse; a feedback section to receive a feedback pulse returned from an external device as a result of loading the output pulse onto the external device, and to detect a phase difference between the feedback pulse and the output pulse; and a correcting section to correct a timing of the output pulse formed by the pulse forming section in response to the detected phase difference.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: November 16, 2004
    Assignee: Konica Corporation
    Inventor: Kouichi Takagi
  • Publication number: 20040190272
    Abstract: A control circuit board has an end portion formed with a cut that is opened sideways. The cut is coated with a conductor layer. Upon connecting the control circuit board to a conductor such as a bus bar, solder is supplied so as to bridge the conductor layer and the bus bar in a state that the conductor layer is laid on the bus bar.
    Type: Application
    Filed: December 22, 2003
    Publication date: September 30, 2004
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kouichi Takagi, Fumiaki Mizuno
  • Patent number: 6793850
    Abstract: An alkali development type photocurable composition comprises (A) an alkali-soluble macromolecular binder having a weight-average molecular weight in the range of 5,000 to 100,000 and an acid value in the range of 50 to 150 mg KOH/g and obtained by causing (d) a compound possessing one glycidyl group in its molecule to react with a carboxyl group of (A-1) a copolymer of (a) an ethylenically unsaturated bond-containing compound possessing one carboxyl group in its molecule with (b) an ethylenically unsaturated bond-containing compound possessing neither hydroxyl group nor acidic group in its molecule, or a carboxyl group of (A-2) a copolymer of the compounds (a) and (b) mentioned above and (c) an ethylenically unsaturated bond-containing compound possessing a hydroxyl group and then causing (e) a polybasic acid anhydride to react with a hydroxyl group caused by the above reaction, (B) an inorganic powder, (C) a photopolymerizable monomer, (D) a photopolymerization initiator, and (E) an organic solvent.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: September 21, 2004
    Assignee: Taiyo Ink Manufacturing Co., Ltd.
    Inventors: Kyo Ichikawa, Kouichi Takagi, Nobuyuki Suzuki
  • Publication number: 20040161960
    Abstract: A vehicle-installed relay box is for installing a relay used for controlling power supply to a load in a vehicle-installed system provided with different specifications, the relay being configured to different specifications using one or more relay elements in combination in accordance with one type of specification selected from among the different specifications of the vehicle-installed system. The vehicle-installed relay box includes: a plurality of terminals; an installation socket configured to install the relay element; and a wiring configured to connect the relay element installed in the installation socket and the terminals. The installation socket is further configured to be installed a different relay element in accordance with the selected type of specification from among the different specifications of the vehicle-installed system.
    Type: Application
    Filed: November 20, 2003
    Publication date: August 19, 2004
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD
    Inventors: Kouichi Takagi, Keizou Ikeda, Shuji Mayama
  • Patent number: 6757145
    Abstract: The power supply system includes an alternator that generates electric power according to the number of revolutions of an engine mounted in a vehicle and charges a predetermined battery; an output unit for outputting the electric power from the charged battery to the outside; a power generation control unit that detects the current amount of the electric power transmitted from the battery to the output unit and sets the number of engine revolutions according to the detected current amount; and an engine control unit that controls the number of revolutions of the engine in accordance with the number of engine revolutions set by the power generation control unit.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: June 29, 2004
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventor: Kouichi Takagi
  • Patent number: 6639444
    Abstract: A protection circuit 10 has a diode 31 being connected in parallel to an inductive load 11 and having a forward direction set reverse to the conduction direction of a power supply current and a Zener diode 33 being placed between one terminal of the diode 31 and one terminal of the load 11 corresponding to the terminal of the diode and having a forward direction matched with the conduction direction of the power supply current.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: October 28, 2003
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Keizou Ikeda, Kouichi Takagi, Shuji Mayama
  • Patent number: 6630749
    Abstract: The automobile power source monitor is provided with: a breaker 11 mounted in the feeding path through which the electric power from the battery 1 is fed to the electric devices through the feed sockets A1-Am provided in the car; an engine stop detecting circuit 16 to detect the stop of the engine according to the L signal of the regulator IC 19, and to shut down the breaker 11 through the driving circuit 17; an over current detecting circuits C1-Cm to detect the over current according to the detecting values of the current detecting circuits B1-Bm, and to shut down the breaker 11; an idling-up instruction circuit 13 to detect the increase of the feeding current, and to instruct the idling-up; and a low voltage detecting circuit 15 to detect the lowering of the output voltage of the battery 1 and to shut down the breaker 11.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: October 7, 2003
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Kouichi Takagi, Takeshi Endoh, Kazuhiro Aoki, Satoshi Nakagawa
  • Publication number: 20030137813
    Abstract: A circuit-constituting unit forming a distribution circuit or the like in a vehicle. The circuit-constituting unit includes a plurality of bus bars for constituting a power circuit; a semiconductor switching device provided in the power circuit; and a control circuit board. The bus bars are bonded to a surface of the control circuit board such that the bus bars are arranged to be generally coplanar with each other. The semiconductor switching device is mounted on both of the corresponding bus bars and the control circuit board. An opening may be formed through the control circuit board. In this case, one of terminals of the semiconductor switching device may be connected to a surface of the control circuit board facing away from the surface to which the bus bars are bonded. The other terminals may be connected respectively to the bus bar through the opening.
    Type: Application
    Filed: November 25, 2002
    Publication date: July 24, 2003
    Applicant: AUTONETWORKS TECHNOLOGIES, LTD
    Inventors: Takahiro Onizuka, Isao Isshiki, Ryuji Nakanishi, Kouichi Takagi, Tou Chin, Shigeki Yamane
  • Patent number: 6555594
    Abstract: There is provided a photo-curable, electrically conductive composition which is capable of forming a lower layer (black layer) electrode circuit satisfying both the sufficient conductivity and blackness after calcination in the formation of an electrode on a front substrate of a plasma display panel (PDP). The composition comprises, in the first fundamental mode thereof, (A) electrically conductive black fine particles having a specific surface area of more than 20 m2/g,(B) anorganic binder, (C) a photopolymerizable monomer, and (D) a photopolymerization initiator, and in the second mode further comprises (E) inorganic fine particles besides the above components.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: April 29, 2003
    Assignee: Taiyo Ink Manufacturing Co., Ltd.
    Inventors: Kazunobu Fukushima, Hiroyuki Tokai, Kouichi Takagi, Tadashi Furuhashi
  • Publication number: 20030025546
    Abstract: A protection circuit 10 has a diode 31 being connected in parallel to an inductive load 11 and having a forward direction set reverse to the conduction direction of a power supply current and a Zener diode 33 being placed between one terminal of the diode 31 and one terminal of the load 11 corresponding to the terminal of the diode and having a forward direction matched with the conduction direction of the power supply current.
    Type: Application
    Filed: July 26, 2002
    Publication date: February 6, 2003
    Applicant: AUTONETWORKS TECHNOLOGIES, LTD.
    Inventors: Keizou Ikeda, Kouichi Takagi, Shuji Mayama