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).

  • Patent number: 11075856
    Abstract: 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: Grant
    Filed: November 24, 2017
    Date of Patent: July 27, 2021
    Assignees: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Yuya Tanaka, Akihito Iwata, Takeshi Hagihara, Yasuhiro Yabuuchi
  • Patent number: 11063908
    Abstract: This on-vehicle communication device includes: a storage unit configured to store correspondence information indicating a correspondence relationship between an address and a port number; and a communication unit configured to perform, by using the correspondence information, filtering of a packet having been received. A target port number which is a port number of a target instrument is registered in advance in the correspondence information. In the filtering, the communication unit selectively allows a packet that includes the target port number, to pass. The communication unit performs an address registration process of acquiring an address from the packet that includes the target port number and registering, into the correspondence information, the acquired address in association with the target port number. In the filtering after the address registration process, the communication unit selectively allows a packet that includes the target port number and the corresponding address, to pass.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: July 13, 2021
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Darmawan Go, Hideki Maeda, Takeshi Hagihara, Yasuhiro Yabuuchi, Yasuhiro Yamasaki, Hiroya Ando, Toshio Kawamura, Hirofumi Urayama
  • Patent number: 11007875
    Abstract: 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: Grant
    Filed: June 2, 2017
    Date of Patent: May 18, 2021
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd., Honda Motor Co., Ltd.
    Inventors: Yuichi Kodama, Ryo Okada, Takeshi Hagihara, Kazuhiko Nii, Koji Saotome, Shuta Fukuda
  • Publication number: 20210105324
    Abstract: A switch device includes: a switch unit configured to relay an Ethernet frame between a plurality of function units installed in a vehicle; a monitoring unit configured to monitor predetermined data in the Ethernet frame; and a specification unit configured to specify a protocol being used by a target function unit which is a function unit serving as a transmission source of the Ethernet frame, based on a monitoring result of the monitoring unit. The monitoring unit performs an operation monitoring process of selectively monitoring an operation of the target function unit according to the target protocol that is the protocol specified by the specification unit.
    Type: Application
    Filed: November 30, 2018
    Publication date: April 8, 2021
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Akihito IWATA, Takeshi HAGIHARA, Yasuhiro YABUUCHI
  • Patent number: 10965493
    Abstract: An on-vehicle communication system is an on-vehicle communication system mounted on a vehicle, comprises: a plurality of on-vehicle devices including a first on-vehicle device and a second on-vehicle device; an acquisition unit that acquires error information concerning an error of data received by the first on-vehicle device from the second on-vehicle device; and a determination unit that performs determination processing of determining whether or not a communication route from the second on-vehicle device to the first on-vehicle device is to be switched to another communication route from the second on-vehicle device to the first on-vehicle device by way of another on-vehicle device based on the error information acquired by the acquisition unit.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: March 30, 2021
    Assignees: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Akihito Iwata, Takeshi Hagihara, Yasuhiro Yabuuchi
  • Patent number: 10938596
    Abstract: 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: Grant
    Filed: August 2, 2017
    Date of Patent: March 2, 2021
    Assignees: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Akihiro Ogawa, Akihito Iwata, Hirofumi Urayama, Takeshi Hagihara, Yashuhiro Yabuuchi
  • Publication number: 20210021615
    Abstract: An on-vehicle communication system includes: a plurality of function units; and one or a plurality of switch devices, each switch device being configured to perform a relay process of relaying communication data between the function units. When unauthorized communication by a function unit has been detected, the switch device performs a validation process of validating a function unit other than an unauthorized-communication function unit that is the function unit for which the unauthorized communication has been detected.
    Type: Application
    Filed: December 14, 2018
    Publication date: January 21, 2021
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Darmawan GO, Hirofumi URAYAMA, Takeshi HAGIHARA, Yasuhiro YABUUCHI
  • Patent number: 10892913
    Abstract: 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: Grant
    Filed: June 28, 2017
    Date of Patent: January 12, 2021
    Assignees: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Akihito Iwata, Hirofumi Urayama, Akihiro Ogawa, Takeshi Hagihara, Yasuhiro Yabuuchi
  • Publication number: 20210006435
    Abstract: This switch device includes: a relay unit configured to perform a first relay process of relaying data between function units installed in a vehicle and belonging to different VLANs; a calculation unit configured to calculate time correction information on the basis of a transmission time of data from a first function unit serving as the function unit to the switch device, a reception time in the switch device of the data transmitted from the first function unit, a transmission time of data from a second function unit serving as the function unit to the switch device, and a reception time in the switch device of the data transmitted from the second function unit; and a notification unit configured to notify the second function unit of the time correction information calculated by the calculation unit.
    Type: Application
    Filed: November 22, 2018
    Publication date: January 7, 2021
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Akihito IWATA, Takeshi HAGIHARA, Yasuhiro YABUUCHI
  • Publication number: 20200410785
    Abstract: This on-vehicle communication system is an on-vehicle communication system including one or a plurality of switch devices each configured to relay data between a plurality of function units mounted to a vehicle. The on-vehicle communication system includes: a detection unit configured to detect an abnormality regarding a function unit; and a change unit configured to, when an abnormality has been detected by the detection unit, perform a protocol change process of causing the function unit for which the abnormality has been detected, to change a protocol that is used.
    Type: Application
    Filed: January 31, 2019
    Publication date: December 31, 2020
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD.
    Inventors: Takehiro KAWAUCHI, Akihito IWATA, Takeshi HAGIHARA, Yasuhiro YABUUCHI, Yuanjun XIAN, Makoto MASHITA
  • Publication number: 20200389436
    Abstract: This on-vehicle communication device includes: a storage unit configured to store correspondence information indicating a correspondence relationship between an address and a port number; and a communication unit configured to perform, by using the correspondence information, filtering of a packet having been received. A target port number which is a port number of a target instrument is registered in advance in the correspondence information. In the filtering, the communication unit selectively allows a packet that includes the target port number, to pass. The communication unit performs an address registration process of acquiring an address from the packet that includes the target port number and registering, into the correspondence information, the acquired address in association with the target port number. In the filtering after the address registration process, the communication unit selectively allows a packet that includes the target port number and the corresponding address, to pass.
    Type: Application
    Filed: August 30, 2019
    Publication date: December 10, 2020
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Darmawan GO, Hideki MAEDA, Takeshi HAGIHARA, Yasuhiro YABUUCHI, Yasuhiro YAMASAKI, Hiroya ANDO, Toshio KAWAMURA, Hirofumi URAYAMA
  • Patent number: 10862703
    Abstract: An in-vehicle communication system includes first and second switch devices that perform a relay process of relaying data in an in-vehicle network, the first switch device includes a switch unit and a processing unit that performs the relay process via the switch unit, the switch unit transmits target data to the second switch device instead of outputting the target data to the processing unit when an abnormality in the processing unit is detected, the target data being data which is received from a device other than the second switch device and is to undergo the relay process performed by the processing unit, and the second switch device performs a proxy process of relaying the target data received from the switch unit instead of the processing unit.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: December 8, 2020
    Assignees: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Akihiro Ogawa, Hirofumi Urayama, Koichi Takayama, Takeshi Hagihara, Yasuhiro Yabuuchi
  • Publication number: 20200361412
    Abstract: An on-vehicle device is mounted on a vehicle, and includes: a processing unit; a determination unit configured to determine whether or not the vehicle is in a predetermined stop state; and a secure area that is accessible from the processing unit when the processing unit has output predetermined information. The secure area has, stored therein, control information that allows an external device to control the on-vehicle device. When the determination unit has made a positive determination, the processing unit accesses the secure area and performs an acquisition process of acquiring the control information from the secure area.
    Type: Application
    Filed: June 12, 2018
    Publication date: November 19, 2020
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Akihiro OGAWA, Hirofumi URAYAMA, Takeshi HAGIHARA, Yasuhiro YABUUCHI
  • Patent number: 10826720
    Abstract: 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: Grant
    Filed: June 28, 2017
    Date of Patent: November 3, 2020
    Assignees: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Akihito Iwata, Hirofumi Urayama, Akihiro Ogawa, Takeshi Hagihara, Yasuhiro Yabuuchi
  • Patent number: 10812290
    Abstract: 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: Grant
    Filed: June 28, 2017
    Date of Patent: October 20, 2020
    Assignees: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Akihito Iwata, Hirofumi Urayama, Akihiro Ogawa, Takeshi Hagihara, Yasuhiro Yabuuchi
  • Publication number: 20200313724
    Abstract: In a communication apparatus, an analog circuit executes an analog process to a differential signal in a condition that a potential of a first conductor is a reference. A communication circuit receives, via a connection circuit, a differential signal obtained by the execution of the analog process of the analog process is executed and generates, based on the received differential signal, a signal with a reference corresponding to a potential of a second conductor. An inductor (a connection element) is connected between the first conductor and the second conductor. The connection circuit includes a circuit element other than a capacitor.
    Type: Application
    Filed: February 14, 2020
    Publication date: October 1, 2020
    Inventors: Makoto Mashita, Takeshi Hagihara, Yuanjun Xian, Nobuyuki Kobayashi, Akihito Iwata, Takehiro Kawauchi, Tatsuya Izumi
  • Publication number: 20200220838
    Abstract: An in-vehicle communication device is an in-vehicle communication device that performs a relay process of relaying data between functional units in an in-vehicle network, and includes a communication unit that performs the relay process using correspondence information indicating a correspondence relation between an Internet protocol (IP) address and a media access control (MAC) address of one or more functional units, an address managing unit that generates the correspondence information, and an authenticating unit that performs an authentication process for the functional unit, in which the authenticating unit performs the authentication process for the functional unit in which an IP address and a MAC address are newly registered in the correspondence information by the address managing unit, and the address managing unit deletes the correspondence relation of the functional unit from the correspondence information when the authentication process for the newly registered functional unit is not successfully
    Type: Application
    Filed: March 20, 2018
    Publication date: July 9, 2020
    Applicants: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Akihiro OGAWA, Hideki MAEDA, Hirofumi URAYAMA, Takeshi HAGIHARA, Yasuhiro YABUUCHI
  • Publication number: 20200195619
    Abstract: The on-vehicle communication device is an on-vehicle communication device to be mounted on a vehicle and is provided with: a storage unit configured to store a first encryption time that is a time required for encryption of data in another on-vehicle communication device, and a first decryption time that is a time required for decryption of data in the on-vehicle communication device itself; and a synchronization processing unit configured to perform synchronization processing of carrying out time synchronization of the on-vehicle communication device itself with the another on-vehicle communication device on the basis of the first encryption time and the first decryption time.
    Type: Application
    Filed: February 20, 2018
    Publication date: June 18, 2020
    Applicants: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Akihito IWATA, Takeshi HAGIHARA, Yasuhiro YABUUCHI
  • Publication number: 20200195471
    Abstract: An on-vehicle communication system is an on-vehicle communication system mounted on a vehicle, comprises: a plurality of on-vehicle devices including a first on-vehicle device and a second on-vehicle device; an acquisition unit that acquires error information concerning an error of data received by the first on-vehicle device from the second on-vehicle device; and a determination unit that performs determination processing of determining whether or not a communication route from the second on-vehicle device to the first on-vehicle device is to be switched to another communication route from the second on-vehicle device to the first on-vehicle device by way of another on-vehicle device based on the error information acquired by the acquisition unit.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 18, 2020
    Applicants: Sumitomo Electric Industries, Ltd., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Akihito IWATA, Takeshi HAGIHARA, Yasuhiro YABUUCHI
  • Publication number: 20200172028
    Abstract: This on-vehicle communication apparatus is configured to communicate with another on-vehicle communication apparatus by using one differential signal line, and includes: a high-band communication unit configured to generate a high-band signal including communication information and output the high-band signal to the differential signal line; and a low-band communication unit configured to generate a direct-current signal or a low-band signal and to output the direct-current signal or the low-band signal to the differential signal line.
    Type: Application
    Filed: January 24, 2018
    Publication date: June 4, 2020
    Applicants: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Takehiro KAWAUCHI, Akihito IWATA, Hirofumi URAYAMA, Takeshi HAGIHARA, Yasuhiro YABUUCHI