Patents by Inventor Tatsuya Izumi

Tatsuya Izumi 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: 20250140033
    Abstract: A management device to be used in an in-vehicle network including a plurality of function units installed in a vehicle includes: a state information acquisition unit configured to acquire state information indicating a state of the vehicle; and an allocation unit configured to change allocation of transmission bands of a plurality of logical paths between the function units in accordance with the state of the vehicle indicated by the state information acquired by the state information acquisition unit.
    Type: Application
    Filed: January 6, 2025
    Publication date: May 1, 2025
    Applicants: Sumitomo Electric Industries, Ltd., Sumitomo Wiring Systems, Ltd., Autonetworks Technologies, Ltd.
    Inventors: Kenta OGATA, Tatsuya IZUMI, Yusuke YAMAMOTO, Yojiro SUYAMA, Hideyuki TANAKA, Junji YANO, Darmawan GO
  • Publication number: 20250132977
    Abstract: A central ECU serving as a communication control device is provided with a memory and a processor coupled to the memory, the processor receives a change notification relating to a change of an intra-vehicle network communication setting from a center server; and determines whether or not new setting information of the intra-vehicle network that is required in association with the change notification is memorized at at least one of the central ECU and an Ethernet switch. When it is determined that the setting information is memorized at neither the central ECU, or the Ethernet switch, the processor requests the setting information from the center server.
    Type: Application
    Filed: January 5, 2023
    Publication date: April 24, 2025
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD.
    Inventors: Yasuhiro YAMASAKI, Kunihiro MIYAUCHI, Hideki GOTO, Ikuyoshi OTAKE, Ryo YAMANE, Yusuke YAMAMOTO, Tatsuya IZUMI, Hideyuki TANAKA, Kenta OGATA, Yoshitaka KIKUCHI, Hirofumi URAYAMA, Darmawan GO
  • Publication number: 20250132979
    Abstract: A central ECU serving as a communication control device includes a reception unit that receives a change notification related to a change in a communication setting of an in-vehicle network, a determination unit that determines whether or not an Ethernet switch connected to the communication control device is operable according to new settings information needed to accompany the change notification, and an inquiry unit that prompts a user to indicate whether or not to reflect the settings information in the Ethernet switch in cases in which the Ethernet switch has been determined to be operable according to the settings information.
    Type: Application
    Filed: January 5, 2023
    Publication date: April 24, 2025
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Yasuhiro YAMASAKI, Kunihiro MIYAUCHI, Hideki GOTO, Ikuyoshi OTAKE, Yoshio ITO, Yusuke YAMAMOTO, Tatsuya IZUMI, Hideyuki TANAKA, Kenta OGATA, Darmawan GO, Yoshitaka KIKUCHI, Hirofumi URAYAMA
  • Patent number: 12278051
    Abstract: A multilayer ceramic capacitor includes a multilayer body including laminated dielectric layers, internal electrode layers on the dielectric layers, first and second main surfaces opposed to each other in a lamination direction, first and second lateral surfaces opposed to each other in a width direction orthogonal or substantially orthogonal to the lamination direction, and first and second end surfaces opposed to each other in a length direction orthogonal or substantially orthogonal to the lamination direction and the width direction, and a first external electrode on the first main surface and a second external electrode on the second main surface, in which a portion or all of the internal electrode layers are not connected to any of the first external electrode or the second external electrode.
    Type: Grant
    Filed: March 17, 2023
    Date of Patent: April 15, 2025
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yuu Mikami, Tatsuya Izumi
  • Patent number: 12278865
    Abstract: Provided is a relay device including: a relay unit configured to perform a relay process for a frame transmitted and received between a plurality of function units; and a relay management unit. The relay unit receives, from a function unit, a target frame. When a content of the target frame satisfies a predetermined condition, the relay management unit stores, in the target frame, position information which is information regarding a position, in the in-vehicle network, of a function unit as a request source of a service related to the target frame or a function unit as a request destination of the service related to the target frame, and outputs the target frame having the position information stored therein, to the relay unit. The relay unit transmits the target frame received from the relay management unit, to a function unit which is a destination of the target frame.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: April 15, 2025
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD.
    Inventors: Yusuke Yamamoto, Hideyuki Tanaka, Tatsuya Izumi, Takeshi Hagihara, Darmawan Go
  • Patent number: 12269400
    Abstract: Provided is a relay device including: a relay unit configured to perform a relay process for a frame transmitted and received between the function units; and a relay management unit. The relay unit receives, from a function unit, a target frame which is transmitted and received according to a predetermined communication protocol and includes information with which a request source of a service is identifiable and information with which a content of the requested service is identifiable, duplicates target data which is at least a part of the received target frame, outputs the duplicated target data to the relay management unit, and relays the received target frame to another function unit. The relay management unit performs determination regarding setting change in the relay process of the relay unit, on the basis of the target data received from the relay unit.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: April 8, 2025
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD
    Inventors: Yusuke Yamamoto, Hideyuki Tanaka, Tatsuya Izumi, Takeshi Hagihara, Darmawan Go
  • Patent number: 12255958
    Abstract: A plurality of communication units of an on-board relay device include a remote communication unit to which a communication device outside a vehicle for communicating with an external server is connected, and a local communication unit to which a diagnostic device is connected, and a control unit of the on-board relay device performs lower layer side control for relay based on a lower side layered protocol in communication, and upper layer side control for relay based on an upper side layered protocol rather than the lower side layered protocol, and performs adjustment processing with respect to a conflict of a plurality of maintenance processings by the upper layer side control when information relevant to the plurality of maintenance processings with respect to any one on-board ECU of a plurality of on-board ECUs is input through the local communication unit and the remote communication unit.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: March 18, 2025
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Darmawan Go, Hideki Maeda, Takeshi Hagihara, Yosuke Shimizu, Tatsuya Izumi, Hirofumi Urayama, Masashi Amesara, Hisashi Furukawa, Shu Ishizuka, Hideki Goto
  • Publication number: 20250080455
    Abstract: A management device includes: an acquisition unit that acquires change information from which a change in an operational state of one or more functional units included in an onboard network is discernible, and from which a change in a state of use of a transmission path in the onboard network by the functional units is discernible; and a setting change unit that performs setting change to change settings for the onboard network based on the change information acquired by the acquisition unit.
    Type: Application
    Filed: April 14, 2022
    Publication date: March 6, 2025
    Inventors: Yoshitaka KIKUCHI, Takeshi HAGIHARA, Hirofumi URAYAMA, Darmawan GO, Tomohiro OTSU, Hideyuki TANAKA, Tatsuya IZUMI, Yusuke YAMAMOTO, Kenta OGATA, Hideki GOTO, Yasuhiro YAMASAKI, Takashi YASUDA
  • Patent number: 12236723
    Abstract: A management device to be used in an in-vehicle network including a plurality of function units installed in a vehicle includes: a state information acquisition unit configured to acquire state information indicating a state of the vehicle; and an allocation unit configured to change allocation of transmission bands of a plurality of logical paths between the function units in accordance with the state of the vehicle indicated by the state information acquired by the state information acquisition unit.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: February 25, 2025
    Assignees: SUMITOMO ELECTRIC INDUSTRIES. LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD.
    Inventors: Kenta Ogata, Tatsuya Izumi, Yusuke Yamamoto, Yojiro Suyama, Hideyuki Tanaka, Junji Yano, Darmawan Go
  • Publication number: 20250047618
    Abstract: A relay device relays communication. The relay device includes: a receiving unit that receives communication data from a communication device; a storage unit that stores the communication data received by the receiving unit; and a processing unit that performs processing. A first period and a second period are alternately set. The processing unit changes the total number of the first periods and the second periods included in a next predetermined period each time a predetermined period including the first periods and the second periods passes. The processing unit determines whether or not the communication data is stored in the storage unit. When it is determined that the communication data is stored in the storage unit, the processing unit specifies a period to which a communication determination time at which the determination has been performed belongs, from the first period and the second period.
    Type: Application
    Filed: June 23, 2022
    Publication date: February 6, 2025
    Inventors: Kazuyuki Inoue, Hideki Maeda, Takeshi Hagihara, Tadashi Matsumoto, Kazuki Kitagawa, Tatsuya Izumi, Hideyuki Tanaka, Yojiro Suyama
  • Publication number: 20240430186
    Abstract: A communication device transmits data to a relay device for transmitting received data. The communication device includes a processing unit that performs processing. The processing unit gives an instruction for data transmission to the relay device, and acquires a transmission delay time from the instruction for data transmission to the transmission of the data. The processing unit acquires a determination delay time from the reception of the data by the relay device to a determination point in time at which whether or not to transmit the received data is determined. The processing unit calculates an entire period from the instruction for data transmission to the determination point in time based on the acquired transmission delay time and determination delay time.
    Type: Application
    Filed: June 13, 2022
    Publication date: December 26, 2024
    Inventors: Kazuyuki INOUE, Tadashi MATSUMOTO, Kazuki KITAGAWA, Yojiro SUYAMA, Tatsuya IZUMI, Hideyuki TANAKA
  • Publication number: 20240388467
    Abstract: An onboard device includes: a communication unit configured to communicate with an onboard device included in an onboard network; a detection unit configured to detect a new onboard device that is an onboard device newly added to the onboard network; and a sleep processing unit configured to, in a detected state where the new onboard device has been detected by the detection unit, transmit a sleep request for transitioning to a sleep state in synchronization with an onboard device included in the onboard network, to the new onboard device via the communication unit.
    Type: Application
    Filed: July 29, 2024
    Publication date: November 21, 2024
    Applicants: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Yosuke Shimizu, Kentaro Ashibe, Takeshi Hagihara, Daiki Nakayama, Tatsuya Izumi
  • Publication number: 20240372694
    Abstract: A vehicle-mounted device stores delay time information of a first set and a second set. The first set includes a first transmission delay time from an external portion to a measurement reference position at a data reception time, and a second transmission delay time from an external portion to a measurement reference position at a data reception time in another device. The second set includes a third transmission delay time from a measurement reference position to an external portion at a data transmission time, and a fourth transmission delay time from a measurement reference position to an external portion at a data transmission time in the other device. A propagation delay time between the devices is measured by time synchronization information to and from the other device, the measured propagation delay time is corrected based on the stored delay time information, and time synchronization between the devices is performed.
    Type: Application
    Filed: June 27, 2022
    Publication date: November 7, 2024
    Inventors: TADASHI MATSUMOTO, Kazuki Kitagawa, Kazuyuki Inoue, Yojiro Suyama, Tatsuya Izumi, Hideyuki Tanaka
  • Publication number: 20240373455
    Abstract: A management device includes: a detection unit configured to detect addition of a function unit to a network including one or a plurality of on-vehicle function units; a generation unit configured to acquire function unit information of a new function unit that is detected, and function unit information of the on-vehicle function unit, and configured to generate configuration information of a new network that is the network in which the new function unit is further included; and an acquisition unit configured to acquire feasibility information indicating feasibility of the new network and corresponding to the configuration information generated by the generation unit. When the feasibility information corresponding to the configuration information generated by the generation unit is not present in a database, the acquisition unit transmits the configuration information generated by the generation unit in order to verify the feasibility of the configuration information.
    Type: Application
    Filed: July 15, 2024
    Publication date: November 7, 2024
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., Autonetworks Technologies, Ltd.
    Inventors: Yusuke YAMAMOTO, Hideyuki Tanaka, Tatsuya Izumi, Junji Yano, Yasuhiro Yabuuchi, Tadashi Matsumoto, Takeshi Hagihara
  • Publication number: 20240364674
    Abstract: An in-vehicle relay device to be connected to a plurality of in-vehicle devices mounted on a vehicle and an authentication device performing authentication of the in-vehicle device, to relay communication between the plurality of in-vehicle devices, the device including a control unit controlling the relay of the communication, in which the control unit relays authentication communication data for the authentication between the in-vehicle device and the authentication device before the authentication of the in-vehicle device connected to the in-vehicle relay device is completed, transmits and receives setting data for setting an in-vehicle network with the authentication device and the in-vehicle device, in parallel with the relay of the authentication communication data, acquires setting information of the in-vehicle network according to the transmitted setting data, from the authentication device, and starts relay based on the acquired setting information after the authentication is completed.
    Type: Application
    Filed: March 14, 2022
    Publication date: October 31, 2024
    Inventors: Hirofumi URAYAMA, Darmawan GO, Tomohiro OTSU, Yoshitaka KIKUCHI, Takeshi HAGIHARA, Hideki MAEDA, Tatsuya IZUMI, Hideyuki TANAKA, Yusuke YAMAMOTO
  • Publication number: 20240348473
    Abstract: A communication device includes: a data transmission unit that is connected to a communication bus to which a plurality of communication equipments are connected and transmits data; and a processing unit that performs processing. The order in which the plurality of pieces of communication equipment and the data transmission unit transmit data through the communication bus is determined in advance. A start signal indicating the start of data transmission is repeatedly transmitted through the communication bus. The data transmission unit transmits data according to the order when the start signal is transmitted. The processing unit changes the transmission interval of the start signal.
    Type: Application
    Filed: June 28, 2022
    Publication date: October 17, 2024
    Inventors: Nobuyuki Kobayashi, Makoto Mashita, Masakatsu Moriguchi, Takeshi Hagihara, Ryo Yamane, Ichiro Kanda, Tatsuya Izumi
  • Publication number: 20240348472
    Abstract: A relay device includes: an upper port configured to receive an upper packet containing audio data of a plurality of channels; a plurality of lower ports configured to output lower packets containing audio data of one or a plurality of channels; and a generation unit configured to reconstruct the upper packet to generate the lower packets. The plurality of lower ports include a first lower port and a second lower port. The first lower port is a starting point of a first network. The second lower port is a starting point of a second network and does not share nodes with the first network. The generation unit deletes audio data of a channel to be reproduced in the second network from the audio data contained in the upper packet, to construct audio data to be contained in the lower packet to be outputted from the first lower port.
    Type: Application
    Filed: June 27, 2022
    Publication date: October 17, 2024
    Inventors: Hitoshi KONO, Hideki Maeda, Takeshi Hagihara, Ryo Yamane, Tatsuya Izumi, Hideyuki Tanaka
  • Patent number: 12113665
    Abstract: An information of a network to which a new function unit has been added is easily acquired. A relay device installed in a vehicle includes: a detection unit configured to detect a new function unit being a function unit that is newly added to a network including an existing function unit being one or a plurality of function units; a relay unit configured to relay a frame between the function units; and an acquisition unit configured to acquire, from the frame, relayed by the relay unit, between the new function unit detected by the detection unit and the existing function unit, function unit information that includes information regarding a network configuration of a layer of a lower order than an application layer, the function unit information being of at least one of the new function unit and the existing function unit.
    Type: Grant
    Filed: July 3, 2020
    Date of Patent: October 8, 2024
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD.
    Inventors: Yojiro Suyama, Hideyuki Tanaka, Tatsuya Izumi, Yusuke Yamamoto, Takeshi Hagihara, Darmawan Go, Yosuke Shimizu
  • Publication number: 20240333553
    Abstract: A first ECU and a plurality of second ECUs are connected to a communication bus. The first ECU repeatedly transmits a beacon signal through the communication bus. Each of the first ECU and the plurality of second ECUs transmits data according to an order set in advance when the beacon signal is transmitted. The first ECU or the second ECU transmits dummy data whose transmission destination is different from the remaining ECUs when there is no transmission data to be transmitted to one of the remaining ECUs other than itself.
    Type: Application
    Filed: March 18, 2022
    Publication date: October 3, 2024
    Inventors: Nobuyuki KOBAYASHI, Makoto MASHITA, Masakatsu MORIGUCHI, Takeshi HAGIHARA, Ryo YAMANE, Ichiro KANDA, Tatsuya IZUMI
  • Publication number: 20240333597
    Abstract: A management device includes: a specification information acquisition unit configured to acquire specification information indicating a specification of a configuration of an in-vehicle network; a state information acquisition unit configured to acquire state information indicating an assembly state, in the in-vehicle network, of a plurality of in-vehicle devices forming the in-vehicle network; and a comparison unit configured to compare the specification indicated by the specification information acquired by the specification information acquisition unit with the assembly state indicated by the state information acquired by the state information acquisition unit.
    Type: Application
    Filed: May 19, 2022
    Publication date: October 3, 2024
    Applicants: Sumitomo Electric Industries, Ltd., Sumitomo Wiring Systems, Ltd., Autonetworks Technologies, Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke YAMAMOTO, Hideyuki TANAKA, Tatsuya IZUMI, Kenta OGATA, Takeshi HAGIHARA, Hirofumi URAYAMA, Darmawan GO, Tomohiro OTSU, Yoshitaka KIKUCHI, Hideki GOTO, Yasuhiro YAMASAKI, Takashi YASUDA