Patents by Inventor Jun Matsushima

Jun Matsushima 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: 10798117
    Abstract: An anomaly detection server is provided. The anomaly detection server is a server for counteracting an anomalous frame transmitted on an on-board network of a single vehicle. The anomaly detection server acquires information about multiple frames received on one or multiple on-board networks of one or multiple vehicles, including the single vehicle. The anomaly detection server, acting as an assessment unit that, based on the information about the multiple frames and information about a frame received on the on-board network of the single vehicle after the acquisition of the information about the multiple frames, assesses an anomaly level of the frame received on the on-board network of the single vehicle.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: October 6, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Tomoyuki Haga, Hideki Matsushima, Manabu Maeda, Yoshihiro Ujiie, Takeshi Kishikawa, Junichi Tsurumi, Jun Anzai
  • Publication number: 20200310782
    Abstract: A gateway device is connected via one or more networks to electronic controllers on-board a vehicle. The gateway device includes one or more memories, and circuitry that acquires firmware update information. The circuitry determines whether or not a first electronic controller satisfies a second condition based on second information about the first electronic controller, where the second information is whether the first electronic controller includes a firmware cache for performing a pre-update firmware cache operation. The circuitry also causes, when the second condition is not satisfied, the gateway device to execute a proxy process, where the gateway device requests the first electronic controller to transmit boot ROM data to the gateway device, creates updated boot ROM data with the updated firmware, and transmits the updated boot ROM data to the first electronic controller that updates the boot ROM and resets the first electronic controller with the updated firmware.
    Type: Application
    Filed: June 16, 2020
    Publication date: October 1, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro UJIIE, Hideki MATSUSHIMA, Jun ANZAI, Toshihisa NAKANO, Tomoyuki HAGA, Manabu MAEDA, Takeshi KISHIKAWA
  • Publication number: 20200274883
    Abstract: An electronic control unit is connected to a network in an in-vehicle network system. The electronic control unit includes a first control circuit and a second control circuit. The first control circuit is connected to the network via the second control circuit. The second control circuit performs a first determination process on a frame to determine conformity of the frame with a first rule. Upon determining that the frame conforms to the first rule, the second control circuit transmits the frame to the first control circuit. The first control circuit performs a second determination process on the frame to determine conformity of the frame with a second rule. The second rule is different from the first rule.
    Type: Application
    Filed: May 12, 2020
    Publication date: August 27, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro UJIIE, Jun ANZAI, Yoshihiko KITAMURA, Masato TANABE, Hideki MATSUSHIMA, Tomoyuki HAGA, Takeshi KISHIKAWA, Ryota SUGIYAMA
  • Patent number: 10744988
    Abstract: The reservoir tank includes a reservoir body which reserves a fluid in an inner portion thereof formed to be in a hollow box shape. The reservoir body includes a port extending outward, a reservoir chamber which reserves the fluid and a port chamber which volume is smaller than that of the reservoir chamber and is in fluid communication with the port and a first communication passage positioned at a portion lower than a changeable liquid surface of the fluid reserved in the reservoir chamber in a vertical direction and provided at the first partition portion to allow the fluid communication between the reservoir chamber and the port chamber and wherein the port chamber and the port are kept being a state in which they are filled with the fluid supplied from the reservoir chamber via the first communication passage.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: August 18, 2020
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke Sekine, Ryosuke Sakakibara, Jun Matsushima, Akira Omizu, Koji Masuda, Akira Sakai, Hideki Sugawa
  • Patent number: 10725762
    Abstract: A gateway device, connected to one or more buses used in communication by a plurality of ECUs on-board a vehicle, is provided with: a receiving unit that receives, from a server that acts as an external device external to the vehicle, firmware update information that includes updated firmware to be applied to one ECU from among the plurality of ECUs; and a control unit that determines, based on certain information about the ECU on which to apply the updated firmware, whether or not the ECU satisfies a certain condition, and if the certain condition is satisfied, causes the ECU to execute a certain process related to updating firmware, whereas if the certain condition is not satisfied, causes equipment other than the ECU to execute the certain process.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: July 28, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro Ujiie, Hideki Matsushima, Jun Anzai, Toshihisa Nakano, Tomoyuki Haga, Manabu Maeda, Takeshi Kishikawa
  • Publication number: 20200216364
    Abstract: An oriented ceramic sintered body production method includes (a) a step of preparing a ceramic compact before firing into an oriented ceramic sintered body; and (b) a step of obtaining an oriented ceramic sintered body by sandwiching the ceramic compact between a pair of releasing sheets, placing the ceramic compact and the releasing sheets in a hot press firing furnace, and hot press firing the ceramic compact while applying a pressure by a pair of punches through the pair of releasing sheets, wherein each of the releasing sheets is a releasing sheet such that, after the releasing sheet is sandwiched between PET films, is then placed and vacuum-packed on a stainless steel sheet, and is isostatically pressed at 200 kg/cm2, a surface of the releasing sheet on the side opposite from the stainless steel sheet has a profile curve with a maximum profile height Pt of 0.8 ?m or less.
    Type: Application
    Filed: March 13, 2020
    Publication date: July 9, 2020
    Applicant: NGK INSULATORS, LTD.
    Inventors: Morimichi WATANABE, Kei SATO, Kiyoshi MATSUSHIMA, Takahiro MAEDA, Jun YOSHIKAWA, Tsutomu NANATAKI
  • Publication number: 20200220716
    Abstract: An update management method is used in an onboard network system having a plurality of electronic control units (ECUs) that performs communication via a network and connects to an external tool. The method includes a master ECU storing a shared key and an expiration date of the shared key. When the master ECU receives an update message, verifying update authority information indicating authority of the external tool, and determining whether or not a transmission of the update message is within a range of an authority of the external tool. The method also includes acquiring external point-in-time information, determining whether or not the external point-in-time information is before the expiration date, and transmitting an alert message prompting an update of the shared key. The ECUs are prioritized according to a designated level of authority, including chassis-related functions, body-related functions, safety/comfort functions, and telematics/infotainment functions.
    Type: Application
    Filed: March 16, 2020
    Publication date: July 9, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Tomoyuki HAGA, Hideki MATSUSHIMA, Manabu MAEDA, Yuji UNAGAMI, Jun ANZAI
  • Patent number: 10693889
    Abstract: An electronic control unit is connected to an in-vehicle network bus in an in-vehicle network system. The electronic control unit includes a first control circuit and a second control circuit. The first control circuit is connected to the in-vehicle network bus via the second control circuit over wired communication and/or wireless communication. The first control circuit performs a first determination process on a frame to determine conformity of the frame with a first rule. The second control circuit performs a second determination process on the frame to determine conformity of the frame with a second rule, and, upon determining that the frame conforms to the second rule, transmits the frame to the in-vehicle network bus.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: June 23, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro Ujiie, Jun Anzai, Yoshihiko Kitamura, Masato Tanabe, Hideki Matsushima, Tomoyuki Haga, Takeshi Kishikawa, Ryota Sugiyama
  • Patent number: 10637657
    Abstract: An update management method causes an external tool, capable of transmitting an update message to update data such as shared keys within electronic control units (ECUs) making up an onboard network, to update shared keys and the like within the ECUs, while reducing the risk of all ECUs being unauthorizedly rewritten in a case where secret information given to the external tool is leaked. The update management method receives and verifies update authority information indicating authority of the external tool. In a case that an update message instructing updating of shared keys or the like of one or multiple ECUs has been transmitted from the external tool, if the verification is successful and the update authority information indicates that the transmission of the update message is within the range of authority of the external tool, the update is executed at the ECU, and otherwise, update at the ECU is inhibited.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: April 28, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Tomoyuki Haga, Hideki Matsushima, Manabu Maeda, Yuji Unagami, Jun Anzai
  • Patent number: 10601843
    Abstract: A communication device includes: a communication section that transmits and receives a message in a network; an acquisition unit that acquires state information on a state of an object for which the network is provided; an estimation unit that estimates the state of the object based on the state information acquired in the acquisition unit; a setting unit that sets a filtering rule based on the state estimated in the estimation unit; and a filter unit that executes filtering processing for the message in accordance with the filtering rule set in the setting unit.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: March 24, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masato Tanabe, Jun Anzai, Yoshihiko Kitamura, Seiji Sakaki, Yoshihiro Ujiie, Hideki Matsushima
  • Publication number: 20200072903
    Abstract: A semiconductor device capable of suppressing a sharp change in current consumption and a self-diagnosis control method thereof are provided. According to one embodiment, the semiconductor device 1 includes a logic circuit, which is a circuit to be diagnosed, a self-diagnostic circuit for diagnosing the logic circuit, and a diagnostic control circuit for controlling the diagnosis of the logic circuit by the self-diagnostic circuit, and the diagnostic control circuit includes a diagnostic abort control circuit for gradually stopping the diagnosis of the logic circuit by the self-diagnostic circuit when the semiconductor device receives a stop signal instructing the stop of the diagnosis of the logic circuit by the self-diagnostic circuit.
    Type: Application
    Filed: August 7, 2019
    Publication date: March 5, 2020
    Inventors: Yoshinori NISHIDA, Yoichi MAEDA, Jun MATSUSHIMA
  • Patent number: 10580513
    Abstract: An address generation circuit generates a target address to be tested in a memory. A test data generation circuit generates write data for the address and expected value data for read data from the address. A judgment circuit compares matching/non-matching of the read data and the expected value data, for each address, judges that error correction is possible when the number of non-matching bits is within a range of numbers of bits to be error-corrected by an ECC circuit, and judges that error correction is not possible when the number is not within the range.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: March 3, 2020
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Yoichi Maeda, Hideshi Maeno, Jun Matsushima
  • Publication number: 20200055470
    Abstract: A gateway connected to a bus, a bus, and the like used by a plurality of electronic control units for communication includes a frame communication unit that receives a frame, a transfer control unit that removes verification information used to verify a frame from the content of the frame received by the frame communication unit and transfers the frame to a destination bus or that adds verification information to the content of the frame and transfers the frame to the destination bus, and the like.
    Type: Application
    Filed: October 25, 2019
    Publication date: February 20, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Tomoyuki HAGA, Toshihisa NAKANO, Jun ANZAI, Hideki MATSUSHIMA, Yoshihiro UJIIE, Yuji UNAGAMI
  • Patent number: 10525911
    Abstract: A gateway connected to a bus, a bus, and the like used by a plurality of electronic control units for communication includes a frame communication unit that receives a frame, a transfer control unit that removes verification information used to verify a frame from the content of the frame received by the frame communication unit and transfers the frame to a destination bus or that adds verification information to the content of the frame and transfers the frame to the destination bus, and the like.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: January 7, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Tomoyuki Haga, Toshihisa Nakano, Jun Anzai, Hideki Matsushima, Yoshihiro Ujiie, Yuji Unagami
  • Patent number: 10504609
    Abstract: There is to provide a semiconductor device capable of realizing a start time diagnosis on a non-volatile memory without any external device and any non-volatile memory out of a diagnosis target. The non-volatile memory includes an address space formed by addresses continuously read and a reservation address formed by a single or a plurality of addresses, read after the address space. A previously calculated value fixed data is stored in the reservation address. When all the data stored in the address space and the value fixed data are compressed using a predetermined initial value according to a predetermined compression algorithm, the value fixed data is the data for converging the compression value to a predetermined fixed value (for example, 0).
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: December 10, 2019
    Assignee: Renesas Electronics Corporation
    Inventors: Yoichi Maeda, Hideshi Maeno, Jun Matsushima
  • Publication number: 20190173912
    Abstract: A frame transmission prevention apparatus connected to a network of a network system including a plurality of electronic control units communicating with one another via the network is provided. The apparatus includes a processor and a memory. The memory includes at least one set of instructions that causes the processor to perform processes when executed by the processor. The processes include receiving a first frame from the network and switching whether to perform a first process for preventing transmission of the first frame on the basis of management information indicating whether prevention of transmission of a frame is permitted if the first frame satisfies a first condition.
    Type: Application
    Filed: January 23, 2019
    Publication date: June 6, 2019
    Inventors: YOSHIHIRO UJIIE, JUN ANZAI, HIDEKI MATSUSHIMA, TOMOYUKI HAGA
  • Publication number: 20190165946
    Abstract: A method for verifying content data to be used in a vehicle is provided. The method includes acquiring content data, acquiring, from partial data divided from the content data, a respective plurality of first hash values, acquiring a signature generated by using the first hash values and a key, acquiring state information that indicates a state of a vehicle, determining an integer N that is greater than or equal to one based on the acquired state information, generating, from N pieces of partial data included in the partial data, respective second hash values, verifying the content data by using each of (a) a subset of the plurality of first hash values respectively generated from partial data other than the N pieces of partial data, (b) the second hash values, and (c) the signature, and outputting information that indicates a result of the verifying.
    Type: Application
    Filed: February 1, 2019
    Publication date: May 30, 2019
    Inventors: YUJI UNAGAMI, MANABU MAEDA, TOMOYUKI HAGA, HIDEKI MATSUSHIMA, JUN ANZAI
  • Patent number: 10295597
    Abstract: A semiconductor device includes a FIFO, a test data write circuit that sequentially writes a plurality of test data to the FIFO in synchronization with a first clock signal, and a test control circuit that, in parallel with writing of the plurality of test data to the FIFO by the test data write circuit, sequentially reads a plurality of test data stored in the FIFO in synchronization with a second clock signal that is not synchronous with the first clock signal and performs a scan test of a circuit to be tested.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: May 21, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Yoichi Maeda, Jun Matsushima, Hiroki Wada
  • Patent number: 10288683
    Abstract: In order to generate a false failure in a logic circuit without adding a new circuit to the logic circuit, a semiconductor device includes a plurality of test points includes a test point flip-flop to fix a target node within the logic circuit to a predetermined logic level when the flip-flop holds a predetermined value. A scan chain is configured by sequentially coupling a plurality of test point slip-flops. A failure injection circuit injects a failure into the target node during the normal operation of the logic circuit, by generating failure data and by setting the generated failure data to the scan chain through a scan-in node of the scan chain.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: May 14, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Yoichi Maeda, Jun Matsushima
  • Patent number: 10281525
    Abstract: A semiconductor device (1) according to the present invention includes a circuit to be tested (2) having a scan chain, and a first test control device (3) and a second test control device (4) that perform a scan test of the circuit to be tested by using the scan chain. The second test control device (4) performs a second scan test of the circuit to be tested (2), the circuit to be tested (2) gives the first test control device (3) an instruction to perform a first scan test after the second scan test is performed, and the first test control device (3) performs a first scan test of the circuit to be tested (2) in response to an instruction from the circuit to be tested (2).
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: May 7, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Yoichi Maeda, Jun Matsushima, Takayuki Suzuki