Patents by Inventor Nobuyuki Nakagawa

Nobuyuki Nakagawa 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: 20140312840
    Abstract: A power supply system and a connector, which can suppress occurrence of crosstalk between a power supply wire, and a control wire and an earth wire in a charging cable that includes the power supply wire, the control wire and the earth wire at the time of connecting a power supplying device with a vehicle having a power storage device to be supplied with power from the power supplying device via the power supply wire and the earth wire to be used for supplying power and the control wire for transmitting a control signal to be used for power supply control of the power storage device, are provided. The ratio of the winding number of a primary coil connected with at least one of the control wire and the earth wire to the winding number of a secondary coil connected with a communication unit that sends and receives a communication signal is set at 1/N (N>1) in a system which satisfies VnC>VnL or is set at N (N>1) in a system which satisfies VnC<VnL.
    Type: Application
    Filed: September 7, 2012
    Publication date: October 23, 2014
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, AUTONETWORKS TECHNOLOGIES, LTD, UMITOMO WIRING SYSTEMS, LTD.
    Inventors: Takeshi Hagihara, Ryou Okada, Yousuke Takata, Hiroya Andoh, Yuta Ochiai, Nobuyuki Nakagawa, Yukihiro Miyashita
  • Publication number: 20140292069
    Abstract: An output circuit sends a control pilot signal generated in a voltage generator to an input circuit. A communication unit is connected between an earthed wire and a control pilot wire on the output side of the output circuit via a bandpass filter. A communication unit is connected between the earthed wire and the control pilot wire on the input side of the input circuit via a bandpass filter. A low-pass filter is interposed between the output circuit and the communication unit. A low-pass filter is interposed between the input circuit and the communication unit.
    Type: Application
    Filed: July 13, 2012
    Publication date: October 2, 2014
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHIA, AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Takeshi Hagihara, Yutaka Komatsu, Tatsuya Izumi, Kazuhiko Nii, Ryou Okada, Yousuke Takata, Hiroya Andoh, Yuta Ochiai, Ryuichi Kamaga, Atsushi Iwai, Yukihiro Miyashita, Nobuyuki Nakagawa
  • Publication number: 20140254695
    Abstract: A charging station performs communications by use of a superimposing/separating unit configured by connecting a capacitor, a coupling transformer and a capacitor to branch lines branching out respectively from a control cable and a grounded cable. An electric vehicle performs communications by use of a superimposing/separating unit configured by providing a coupling transformer to the control cable. A capacitor is also connected between the control cable and the grounded cable. Communications are allowed by the configuration of a closed loop circuit comprising the control cable, the branch line, the capacitor, a primary coil of the coupling transformer, the capacitor, the branch line, the grounded cable, the capacitor, and a primary coil of the coupling transformer.
    Type: Application
    Filed: July 13, 2012
    Publication date: September 11, 2014
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHIA, AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Yousuke Takata, Yutaka Komatsu, Takeshi Hagihara, Hiroya Andoh, Yuta Ochiai, Ryuichi Kamaga, Atsushi Iwai, Yukihiro Miyashita, Nobuyuki Nakagawa
  • Publication number: 20140254694
    Abstract: This output circuit sends a control pilot signal which has been generated at a voltage generation source to an input circuit. Between the control pilot line and the ground line of the output side of the output circuit, a communication unit is connected via a transformer. Between the control pilot line and the ground line of the input side of the input circuit, a communication unit is connected via a transformer. Between the output circuit and the transformer, a lowpass filter is interposed. Between the input circuit and the transformer, a lowpass filter is interposed.
    Type: Application
    Filed: June 21, 2012
    Publication date: September 11, 2014
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHIA, AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Ryou Okada, Takeshi Hagihara, Yutaka Komatsu, Tatsuya Izumi, Kazuhiko Nii, Yousuke Takata, Hiroya Andoh, Yuta Ochiai, Ryuichi Kamaga, Atsushi Iwai, Yukihiro Miyashita, Nobuyuki Nakagawa
  • Publication number: 20140247893
    Abstract: Provided are a communication system and a communication device capable of suppressing attenuation of a communication signal superimposed upon a control pilot line. This output circuit (20) sends a control pilot signal which has been generated at a voltage generation source (21) to an input circuit (60). Between the control pilot line (4) and the ground line (3) of the output side of the output circuit (20), a communication unit (30) is connected via a transformer (31). Between the control pilot line (4) and the ground line (3) of the input side of the input circuit (60), a communication unit (70) is connected via a transformer (71). Between the output circuit (20) and the transformer (31), a lowpass filter (33) is interposed. Between the input circuit (60) and the transformer (71), a lowpass filter (73) is interposed.
    Type: Application
    Filed: June 21, 2012
    Publication date: September 4, 2014
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Yutaka Komatsu, Takeshi Hagihara, Ryou Okada, Yousuke Takata, Tatsuya Izumi, Kazuhiko Nii, Hiroya Andoh, Yuta Ochiai, Ryuichi Kamaga, Atsushi Iwai, Yukihiro Miyashita, Nobuyuki Nakagawa
  • Publication number: 20140192910
    Abstract: An output circuit sends out, to an input circuit, a control pilot signal generated by a voltage source. A voltage transformer is provided to a control pilot line on the output side of the output circuit, and a communication unit transmits and receives communication signals via the voltage transformer. A voltage transformer is provided to the control pilot line on the input side of the input circuit, and a communication unit transmits and receives the communication signals via the voltage transformer. A low-pass filter is provided to the control pilot line between the input circuit and the voltage transformer.
    Type: Application
    Filed: July 13, 2012
    Publication date: July 10, 2014
    Applicants: Sumitomo Kitahama 4-chome, TOYOTA JIDOSHA KABUSHIKI KAISHA, AutoNetworks Technologies, Ltd., Sumitomo Wiring
    Inventors: Ryou Okada, Takeshi Hagihara, Yutaka Komatsu, Tatsuya Izumi, Kazuhiko Nii, Yousuke Takata, Hiroya Andoh, Yuta Ochiai, Ryuichi Kamaga, Atsushi Iwai, Yukihiro Miyashita, Nobuyuki Nakagawa
  • Patent number: 8660149
    Abstract: A data communication network system which enables an intended unit to determine a start point for a transmission schedule in communication is provided. In a data communication network system in which a plurality of electronic control units perform network communication through a communication line based on a time triggered communication protocol, a control section for previously putting the communication line in a communication inhibited state, and canceling the communication inhibited state at a predetermined time is included, and a predetermined one unit among the plurality of electronic control units transmits a message for synchronization, in a communication time, with the other units thereamong immediately after the communication inhibited state is cancelled.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: February 25, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroya Ando, Hiroyoshi Ito, Kengo Hayashizaki, Koji Hirabayashi, Nobuyuki Nakagawa, Yusuke Satoh
  • Publication number: 20130342008
    Abstract: Provided are a power line communication system, a connector device, and a power line communication device that allow downsizing of a device for power line communication in a vehicle that performs power line communication with a feeding device via a charging cable. An electromagnetic induction type signal converter and a filter necessary for power line communication are provided in a connector device 3, and a power line communication section which performs power line communication with the electromagnetic induction type signal converter is provided in an ECU. A capacitor 16, a signal wire 17, and a capacitor 16 are connected in series between AC lines 11 and 12 extending from a tubular part 32 of the connector device 3.
    Type: Application
    Filed: February 1, 2012
    Publication date: December 26, 2013
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHIA, SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yousuke Takata, Takeshi Hagihara, Yutaka Komatsu, Hiroya Andoh, Yuta Ochiai, Nobuyuki Nakagawa, Yukihiro Miyashita
  • Publication number: 20130328528
    Abstract: Provided is a power line communication system in which power line communication devices having different configurations from each other coexist. A charging station performs power line communication, using a signal superimposition/separation section in which a capacitor, a coupling transformer, and a capacitor are connected to branch lines branched from two AC lines. An electric vehicle performs power line communication, using a signal superimposition/separation section in which the coupling transformer is inserted in one AC line and a capacitor is connected to and between two AC lines. In a case where the charging station and the electric vehicle are connected to each other with a charging cable, a closed loop circuit is formed that is composed of the AC line, the branch line, the capacitor, a primary coil of the coupling transformer, the capacitor, the branch line, the AC line, an AC line, the AC line, the capacitor, a primary coil of a coupling transformer, the AC line, and an AC line.
    Type: Application
    Filed: February 1, 2012
    Publication date: December 12, 2013
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHIA, SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yousuke Takata, Yutaka Komatsu, Takeshi Hagihara, Nobuyuki Nakagawa
  • Publication number: 20130154362
    Abstract: A coupling transformer 15 necessary for power line communication is provided in a connector device 3. The coupling transformer 15 is formed by winding an AC line 11 and a signal wire 13 around an annular toroidal core 15a, which is to be fitted on a tubular part 32 of the connector device 3. Cutouts for housing the AC line 11 and the signal wire 13 wound around the toroidal core 15a are formed in the tubular part 32 of the connector device 3. Further, a coil 17a is connected to the AC line 11, a capacitor 17b is connected to an AC line 12, and the coil 17a and the capacitor 17b are connected to each other with a wire 17c provided along the AC lines 11 and 12, whereby a filter circuit is formed.
    Type: Application
    Filed: August 24, 2011
    Publication date: June 20, 2013
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yousuke Takaka, Yutaka Komatsu, Takeshi Hagihara, Hiroya Andoh, Yuta Ochiai, Nobuyuki Nakagawa, Yukihiro Miyashita
  • Patent number: 8370011
    Abstract: An operation controller controls operations of a plurality of electrical loads mounted on a vehicle and includes a start-up request accepting unit and a start-up coordinating unit. The start-up request accepting unit accepts a start-up request from the electrical loads. The start-up coordinating unit: controls start-up of the electrical load, from which the start-up request is output, on the basis of a priority assigned to the electrical load; outputs a signal for restricting start-up to a first electrical load having a relatively high priority, when the start-up request accepting unit accepts the start-up request from a second electrical load having a relatively low priority; and allows the second electrical load to start up, when the first electrical load is stopped after a predetermined waiting time elapses since the signal has been output.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: February 5, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Nobuyuki Nakagawa
  • Publication number: 20120228961
    Abstract: There are: a communication sheet that propagates electromagnetic wave; a wireless communication part arranged close to the communication sheet, and stores predetermined information, and wirelessly transmits the predetermined information to the communication sheet; a shield part that shields a radio signal wirelessly transmitted from the wireless communication part; an operation part that enables or disables wireless communication between the communication sheet and the wireless communication part; and a discrimination part that discriminates contents of operation by the operation part based on the predetermined information wirelessly transmitted by the wireless communication part. According to an operation by said operation part to disable the wireless communication between said communication sheet and the wireless communication part, said shield part shields the radio signal from the wireless communication part.
    Type: Application
    Filed: November 18, 2009
    Publication date: September 13, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyoshi Ito, Hiroya Ando, Norio Abe, Nobuyuki Nakagawa, Yusuke Satoh
  • Publication number: 20110128855
    Abstract: A data communication network system which enables an intended unit to determine a start point for a transmission schedule in communication is provided. In a data communication network system in which a plurality of electronic control units perform network communication through a communication line based on a time triggered communication protocol, a control section for previously putting the communication line in a communication inhibited state, and canceling the communication inhibited state at a predetermined time is included, and a predetermined one unit among the plurality of electronic control units transmits a message for synchronization, in a communication time, with the other units thereamong immediately after the communication inhibited state is cancelled.
    Type: Application
    Filed: December 1, 2010
    Publication date: June 2, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroya ANDO, Hiroyoshi ITO, Kengo HAYASHIZAKI, Koji HIRABAYASHI, Nobuyuki NAKAGAWA, Yusuke SATOH
  • Publication number: 20100152915
    Abstract: An operation controller controls operations of a plurality of electrical loads mounted on a vehicle and includes a start-up request accepting unit and a start-up coordinating unit. The start-up request accepting unit accepts a start-up request from the electrical loads. The start-up coordinating unit: controls start-up of the electrical load, from which the start-up request is output, on the basis of a priority assigned to the electrical load; outputs a signal for restricting start-up to a first electrical load having a relatively high priority, when the start-up request accepting unit accepts the start-up request from a second electrical load having a relatively low priority; and allows the second electrical load to start up, when the first electrical load is stopped after a predetermined waiting time elapses since the signal has been output.
    Type: Application
    Filed: March 23, 2009
    Publication date: June 17, 2010
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventor: Nobuyuki Nakagawa
  • Patent number: 7669093
    Abstract: An information radio transmission system is provided that enables provision of correct control information on the transmitting side irrespective of the error volume when an error occurs in communication data. Error volume measuring data string storage units that store an error volume measuring data string are provided in both a transmitting-side communication device that transmits data by radio transmission and a receiving-side communication device that receives data transmitted from the transmitting-side communication device. The receiving-side communication device has an error volume measuring unit that measures the error volume when transmitting data. An error volume measuring data string is added to data and the data is transmitted from the transmitting-side communication device.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: February 23, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Nobuyuki Nakagawa
  • Publication number: 20080072624
    Abstract: A glass base material which has an area where its heat capacity is bilaterally symmetric with respect to a center axis in a drawing direction is heated so that its temperature becomes bilaterally symmetric with distances from heaters to the glass base material being individually adjusted. As a result, highly accurate drawn glass members without warpage can be continuously obtained.
    Type: Application
    Filed: September 21, 2007
    Publication date: March 27, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Nobuyuki Nakagawa
  • Publication number: 20080026693
    Abstract: The objective of the present invention is to improve transmission characteristics by transmitting data through multiple paths in a multihop radio network including multiple paths. In a source node 210 of (a), an encoder 212 performs communication path encoding, and a modulator 216 modulates. Unlike the prior art, however, a packetizing unit 214 designates relay paths and packetizes outputs from the encoder 212 for the respective paths, whereby signals are transmitted to multiple paths (in this case, two paths). A receiver (See (c)) of a destination node 260 demodulates the signals from the multiple paths using a demodulator 262. Thereafter, it depacketizes the packet of binary data hard-decided by a depacketizing/buffering unit 263 and then temporarily stores the depacketized pieces of data for respective paths in a buffer. A reliability data calculator 265 then diversity-combines, taking reliability data into account. A combiner/decoder 267 performs an error correction based on that combined data.
    Type: Application
    Filed: September 9, 2004
    Publication date: January 31, 2008
    Applicant: Japan Science and Technology Agency
    Inventors: Hiraku Okada, Takaya Yamazato, Masaaki Katayama, Naohisa Koie, Nobuyuki Nakagawa
  • Publication number: 20070178847
    Abstract: An information radio transmission system is provided that enables provision of correct control information on the transmitting side irrespective of the error volume when an error occurs in communication data. Error volume measuring data string storage units that store an error volume measuring data string are provided in both a transmitting-side communication device that transmits data by radio transmission and a receiving-side communication device that receives data transmitted from the transmitting-side communication device. The receiving-side communication device has an error volume measuring unit that measures the error volume when transmitting data. An error volume measuring data string is added to data and the data is transmitted from the transmitting-side communication device.
    Type: Application
    Filed: June 9, 2006
    Publication date: August 2, 2007
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventor: Nobuyuki Nakagawa
  • Publication number: 20060112728
    Abstract: A producing method of a drawn glass member by continuously drawing, under cooling, an end of a glass base material softened by heating, wherein the drawing is performed while keeping constant a drawing length, thereby suppressing a distortion or a buckling in the drawn glass resulting from an unevenness in drawing, and attaining a higher quality.
    Type: Application
    Filed: November 22, 2005
    Publication date: June 1, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Nobuyuki Nakagawa
  • Patent number: D604343
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: November 17, 2009
    Assignees: Hirata Corporation, Bio Medical Science, Inc.
    Inventors: Seigo Murakami, Nobuyuki Nakagawa, Koichi Osawa, Akira Ishii