Patents by Inventor Takeshi Hagihara
Takeshi Hagihara 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).
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Publication number: 20200053003Abstract: A switching device relays data in an on-vehicle network and has a plurality of communication ports. The switching device comprises: a detection unit that detects a failure in communication with another switching device connected to one of the communication ports; and a processing unit that transmits failure information indicating at least any one of a site where the failure in communication occurs and a communication port to be used when the failure in communication occurs by a target switching device being a switching device different from said another switching device, to the target switching device if the failure in communication is detected by the detection unit.Type: ApplicationFiled: February 1, 2018Publication date: February 13, 2020Applicants: Sumitomo Electric Industries, Ltd., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD.Inventors: Hayato SHIKATA, Hirofumi URAYAMA, Hideki MAEDA, Yasuhiro YABUUCHI, Takeshi HAGIHARA
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Publication number: 20200036554Abstract: A gateway that is mounted on a vehicle, includes: a communication unit that can communicate with an external device through other gateway capable of communicating with the external device outside the vehicle, wherein said other gateway includes a switch unit that executes relay processing of relaying communication data and a processing unit that controls the relay processing of the switch unit, wherein said communication unit can relay communication data received from said switch unit to a device inside said vehicle, said gateway further including: a control unit that determines abnormality in said other gateway and if it is determined that said abnormality occurs, controls relay processing of said other gateway.Type: ApplicationFiled: June 28, 2017Publication date: January 30, 2020Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.Inventors: Akihito IWATA, Hirofumi URAYAMA, Akihiro OGAWA, Takeshi HAGIHARA, Yasuhiro YABUUCHI
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Publication number: 20200021557Abstract: A switch device for relaying flow data in an in-vehicle network, being equipped with an acquiring section for acquiring correspondence information indicating at least a correspondence relationship among a transmission destination IP address, a transmission source IP address, transmission destination port information, transmission source port information and a transmission destination MAC address and a relay section for acquiring the transmission destination MAC address from the correspondence information on the basis of the transmission destination IP address, the transmission source IP address, the transmission destination port information and the transmission source port information included in a frame that is received by the switch device and constitutes the flow data and for performing transmission processing to transmit the frame including the acquired transmission destination MAC address.Type: ApplicationFiled: March 9, 2018Publication date: January 16, 2020Applicants: Sumitomo Electric Industries, Ltd., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.Inventors: Hayato SHIKATA, Hirofumi URAYAMA, Hideki MAEDA, Yasuhiro YABUUCHI, Takeshi HAGIHARA
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Publication number: 20190394277Abstract: An in-vehicle communication system is an in-vehicle communication system to be mounted on a vehicle, and includes: a gateway performing relay processing involving communication protocol conversion; and one or a plurality of switching devices performing relay processing not involving the communication protocol conversion, the gateway or the switching device manages data update of a target device mounted on the vehicle, the gateway receives update data for the target device from an external device disposed outside the vehicle, transmits, to the switching device connected thereunder, the update data for the target device, which is connected to the switching device, not holding the update data at least after completing the update, and holds the update data for the target device, which is connected thereto, also after completing the update not through the switching device.Type: ApplicationFiled: October 30, 2017Publication date: December 26, 2019Applicants: Sumitomo Electric Industries, Ltd., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.Inventors: Darmawan GO, Hirofumi URAYAMA, Yoshihisa NAGAMURA, Takeshi HAGIHARA, Yasuhiro YABUUCHI
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Publication number: 20190362628Abstract: A travel assistance device, a travel assistance method, and a computer program are provided. A travel assistance device to be mounted in a vehicle includes: an in-vehicle communication unit to which information received from a road-side communicator is input; and an output unit configured to, if both intersection information including an identifier identifying an intersection and position information regarding the intersection and traffic signal information including the same identifier are input from the in-vehicle communication unit, output travel assistance information that is based on the traffic signal information.Type: ApplicationFiled: May 15, 2019Publication date: November 28, 2019Inventors: Tadashi Matsumoto, Takeshi Hagihara, Yuichi Kodama, Yasuhiro Yabuuchi
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Publication number: 20190359211Abstract: A travel assistance device mounted in a vehicle includes an in-vehicle communication unit to which position information regarding the vehicle, intersection information, and traffic signal information are input. A vehicle speed deriving unit derives a recommended speed of the vehicle and is connected to the in-vehicle communication unit.Type: ApplicationFiled: May 15, 2019Publication date: November 28, 2019Inventors: Tadashi Matsumoto, Takeshi Hagihara, Yuichi Kodama, Yasuhiro Yabuuchi
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Publication number: 20190356608Abstract: This switch device is mounted on a vehicle, and comprises: a switch unit for relaying communication data communicated between a plurality of communication devices; a buffer for holding the communication data to be relayed; and a control unit for transmitting stop request to at least one communication device of the plurality of communication devices if communication data to be transmitted to a communication device in which abnormality has been detected is held in the buffer, the stop request which requests for stopping transmission of communication data to the switch device and for holding of communication data to be transmitted to the switch device.Type: ApplicationFiled: November 24, 2017Publication date: November 21, 2019Applicants: Sumitomo Electric Industries, Ltd., Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.Inventors: Yuya TANAKA, Akihito IWATA, Takeshi HAGIHARA, Yasuhiro YABUUCHI
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Publication number: 20190329666Abstract: A communication device comprises a connector to which a communication line is to be connected for sending and receiving a control signal concerning charge control between a transportation apparatus and a charging apparatus, a modem outputting a modulated signal obtained by modulating information to be sent and demodulating the modulated signal input, and a first internal communication line and a second internal communication line each being connected to the connector and the modem, the first internal communication line and the second internal communication line respectively being for sending the modulated signal and being for receiving the modulated signal, and sends and receives the modulated signal by superposing the modulated signal on the control signal.Type: ApplicationFiled: June 2, 2017Publication date: October 31, 2019Inventors: Yuichi KODAMA, Ryo OKADA, Takeshi HAGIHARA, Kazuhiko NII, Koji SAOTOME, Shuta FUKUDA
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Publication number: 20190319820Abstract: A switch device being equipped with an acquisition section for acquiring environmental information indicating the surrounding environment of a vehicle provided with a plurality of function sections; a switching section for performing relay processing for relaying communication data from at least one of the function sections to at least one of the other function sections; and a setting section for setting the priority level of the communication data in the relay processing on the basis of the environmental information acquired by the acquisition section.Type: ApplicationFiled: August 2, 2017Publication date: October 17, 2019Applicants: Sumitomo Electric Industries, Ltd., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.Inventors: Akihiro OGAWA, Akihito IWATA, Hirofumi URAYAMA, Takeshi HAGIHARA, Yashuhiro YABUUCHI
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Patent number: 10377257Abstract: A vehicle-mounted charging device (12) includes a vehicle-mounted battery (18), a vehicle-mounted electronic control unit (30) and a modem startup control unit. The vehicle-mounted battery is charged with power supplied from external charging equipment via a charging cable (16). The vehicle-mounted electronic control unit is configured to perform charging communication, relating to charging of the vehicle-mounted battery, with the external charging equipment using an in-band modem (32). The modem startup control unit starts up the in-band modem when the vehicle-mounted electronic control unit performs the charging communication, and that stops a startup of the in-band modem when the vehicle-mounted electronic control unit does not perform the charging communication.Type: GrantFiled: December 27, 2013Date of Patent: August 13, 2019Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD.Inventors: Hiroya Ando, Ryuichi Kamaga, Nobuyuki Nakagawa, Yuta Ochiai, Yukihiro Miyashita, Takeshi Hagihara, Yoshikazu Isoyama
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Publication number: 20190229948Abstract: An on-vehicle communication system mounted on a vehicle comprises a first switching device, a second switching device and a third switching device each including a first communication port and a second communication port. The first communication port and the second communication port of the first switching device are respectively connected to the first communication port of the second switching device and the first communication port of the third switching device, and the second communication port of the second switching device and the second communication port of the third switching device are connected to each other. Each of the first switching device, the second switching device and the third switching device measures a reception signal quality for the first communication port of the device itself and a reception signal quality for the second communication port of the device itself.Type: ApplicationFiled: June 28, 2017Publication date: July 25, 2019Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.Inventors: Akihito IWATA, Hirofumi URAYAMA, Akihiro OGAWA, Takeshi HAGIHARA, Yasuhiro YABUUCHI
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Publication number: 20190222437Abstract: A switching device is a switching device mounted on a vehicle and includes a plurality of communication ports connectable to cables for Ethernet communication, a circuit operated by using power supplied via each of the communication ports, an acquisition unit that acquires a measurement result for noise of the power supplied via each of the communication ports, and a determination unit that performs determination processing for determining whether or not power to be supplied via a corresponding one of the communication ports is to be output to the circuit based on the measurement result for noise acquired by the acquisition unit.Type: ApplicationFiled: June 28, 2017Publication date: July 18, 2019Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.Inventors: Akihito IWATA, Hirofumi URAYAMA, Akihiro OGAWA, Takeshi HAGIHARA, Yasuhiro YABUUCHI
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Patent number: 10320445Abstract: A communication system comprising: a control line transmitting a control signal for controlling charging of a battery mounted on a vehicle; a reference potential line connected to a reference potential of the vehicle serving as a reference for the control signal; a first PLC communication device connected to the control line and the reference potential line and superposing onto the control signal a differential signal having a higher frequency than the control signal so as to perform communication with an external power supply apparatus; and an inductive element which is provided at a point of connection between the reference potential line 1c and the reference potential or provided in the reference potential line and the inductive element having impedance for a noise having a higher frequency than the control signal is higher than the impedance for the control signal.Type: GrantFiled: November 6, 2015Date of Patent: June 11, 2019Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd., Toyota Jidosha Kabushiki KaishaInventors: Ryo Okada, Takeshi Hagihara, Ryo Tanaka, Nobuyuki Nakagawa, Kengo Hayashizaki
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Publication number: 20180326854Abstract: A communication system including: a control line transmitting a control signal for controlling charging of a battery of a vehicle; a reference potential line connected to a reference potential of the vehicle; a first PLC communication device connected individually to the control line and the reference potential line and superposing onto the control signal a differential signal having a higher frequency than the control signal so as to perform communication with an external power supply apparatus; an inductive element which is provided in the reference potential line and the inductive element having impedance for a noise having a higher frequency than the control signal is higher than the impedance for the control signal; and a second inductive element provided in a wire connecting the first PLC communication device to a lead battery.Type: ApplicationFiled: November 6, 2015Publication date: November 15, 2018Applicants: AutoNetworks Technologies, Ltd., Toyota Jidosha Kabushiki Kaisha, Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd., Toyota Jidosha Kabushiki KaishaInventors: Ryo Okada, Takeshi Hagihara, Ryo Tanaka, Nobuyuki Nakagawa, Kengo Hayashizaki
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Patent number: 10000503Abstract: 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: GrantFiled: September 7, 2012Date of Patent: June 19, 2018Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeshi Hagihara, Ryou Okada, Yousuke Takata, Hiroya Andoh, Yuta Ochiai, Nobuyuki Nakagawa, Yukihiro Miyashita
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Publication number: 20170331520Abstract: A communication system comprising: a control line transmitting a control signal for controlling charging of a battery mounted on a vehicle; a reference potential line connected to a reference potential of the vehicle serving as a reference for the control signal; a first PLC communication device connected to the control line and the reference potential line and superposing onto the control signal a differential signal having a higher frequency than the control signal so as to perform communication with an external power supply apparatus; and an inductive element which is provided at a point of connection between the reference potential line 1c and the reference potential or provided in the reference potential line and the inductive element having impedance for a noise having a higher frequency than the control signal is higher than the impedance for the control signal.Type: ApplicationFiled: November 6, 2015Publication date: November 16, 2017Applicants: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd., Toyota Jidosha Kabushiki KaishaInventors: Ryo Okada, Takeshi Hagihara, Ryo Tanaka, Nobuyuki Nakagawa, Kengo Hayashizaki
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Patent number: 9780499Abstract: The power receiving connector to be placed as a vehicle-mounted feeding port is formed by integrating connection terminals, internal wirings, wiring branch parts, a ground wire side branch line, a control wire side branch line, capacitors, a superposition separation element, and a low-pass filter with a housing as a replaceable unit.Type: GrantFiled: December 29, 2012Date of Patent: October 3, 2017Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yousuke Takata, Ryou Okada, Takeshi Hagihara, Yutaka Komatsu, Nobuyuki Nakagawa
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Patent number: 9762431Abstract: A communication device includes a first resistance connected between a first reference potential and a midway point of one of a pair communication lines connected to a coil, a second resistance and a third resistance arranged in series so as to be connected between a second reference potential different from the first reference potential and a midway point of the other one of the pair communication lines, and a switch configured to open or close a path between the first resistance and the first reference potential.Type: GrantFiled: December 6, 2012Date of Patent: September 12, 2017Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHIAInventors: Kazuhiko Nii, Takeshi Hagihara, Nobuyuki Nakagawa
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Patent number: 9735832Abstract: 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: GrantFiled: July 13, 2012Date of Patent: August 15, 2017Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeshi Hagihara, Yutaka Komatsu, Tatsuya Izumi, Kazuhiko Nii, Ryou Okada, Yousuke Takata, Hiroya Andoh, Yuta Ochiai, Ryuichi Kamaga, Atsushi Iwai, Yukihiro Miyashita, Nobuyuki Nakagawa
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Patent number: 9694701Abstract: A vehicle charging apparatus mounted on a vehicle for charging an on-vehicle battery from an external power supply, with a charging plug connected to the vehicle, includes a communication device that is configured to perform communication with a charging facility providing the external power supply with the charging plug connected and locked to the vehicle. The communication device prohibits disconnection of the communication when an unlocking operation to unlock the charging plug is executed during charging from the external power supply to the on-vehicle battery.Type: GrantFiled: February 21, 2013Date of Patent: July 4, 2017Assignees: Toyota Jidosha Kabushiki Kaisha, Sumitomo Electric Industries, Ltd., Sumitomo Wiring Systems, Ltd., Autonetworks Technologies, Ltd.Inventors: Nobuyuki Nakagawa, Yuta Ochiai, Yukihiro Miyashita, Hiroshi Nagao, Takeshi Hagihara, Yoshikazu Isoyama