Patents by Inventor Yoshihiro Ujiie

Yoshihiro Ujiie 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: 10328874
    Abstract: An anomaly handling method that suitably handles a case where the possibility of a vehicle being unauthorizedly controlled so as to suppress the effects thereof is provided. In an anomaly handling method used in one or a plurality of electronic control units installed in one vehicle, an inter-vehicle communication message transmitted from a device installed in the other vehicle is received as an anomaly detection notification, the anomaly detection notification being issued when an unauthorized frame is detected on an onboard network installed in another vehicle, and an anomaly handling processing is selected from a plurality of predetermined anomaly handling processing in accordance with the received content to transition to a safe state for example, and the selected anomaly handling processing is executed.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: June 25, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Tomoyuki Haga, Hideki Matsushima, Yoshihiro Ujiie, Takeshi Kishikawa
  • Patent number: 10320826
    Abstract: An anomaly detection electronic control unit, that performs anomaly detection processing and that is connected to a bus which a plurality of electronic control units use for communication to communicate following a Controller Area Network (CAN) protocol, includes an anomaly detection processing requester that decides an anomaly detection processing timing based on an ID of a data frame acquired from the bus, and an anomaly detection processor that performs anomaly detection processing regarding the data frame at the anomaly detection processing timing decided by the anomaly detection processing requester.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: June 11, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Takeshi Kishikawa, Yoshihiro Ujiie, Tomoyuki Haga, Hideki 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: 20190141070
    Abstract: An anomaly detection electronic control unit (ECU) that detects unauthorized messages on a communication path is provided. An ECU that periodically transmits a first-type message including data to be monitored, and an ECU that periodically transmits a second-type message including data for comparison, are connected to the communication path. The anomaly detection ECU includes: a receiver that successively receives first-type and second-type messages; a processor that determines whether a first-type message received is normal or anomalous; and a transmitter that transmits a predetermined message in accordance with results of the determining.
    Type: Application
    Filed: December 31, 2018
    Publication date: May 9, 2019
    Inventors: JUNICHI TSURUMI, YOSHIHIRO UJIIE, TAKAMITSU SASAKI, TAKESHI KISHIKAWA, TOHRU WAKABAYASHI, TOSHIHISA NAKANO
  • Patent number: 10277598
    Abstract: A method for dealing with unauthorized frames that makes it possible to take appropriate measures when an unauthorized data frame is detected in a vehicle network system is provided. A plurality of ECUs in the vehicle network system are connected to a bus used for communicating frames. In the method for dealing with unauthorized frames, if a misuse detection ECU that checks a frame appearing in the bus detects an unauthorized frame that does not comply with a certain rule and a certain prevention condition is satisfied, a process for preventing the plurality of ECUs from performing a process corresponding to the unauthorized frame is performed (an error frame is transmitted) or, if the certain prevention condition is not satisfied, the process is not performed.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: April 30, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Takeshi Kishikawa, Hideki Matsushima, Tomoyuki Haga, Yoshihiro Ujiie, Yuji Unagami
  • Publication number: 20190124091
    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: Application
    Filed: December 12, 2018
    Publication date: April 25, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro UJIIE, Jun ANZAI, Yoshihiko KITAMURA, Masato TANABE, Hideki MATSUSHIMA, Tomoyuki HAGA, Takeshi KISHIKAWA, Ryota SUGIYAMA
  • Publication number: 20190104143
    Abstract: A fraud sensing method for use in an in-vehicle network system including a plurality of electronic control units that communicate with each other via a network includes detecting that a state of a vehicle satisfies a predetermined condition, and switching, upon detecting that the state of the vehicle satisfies the predetermined condition, an operation mode of a fraud-sensing electronic control unit connected to the network between a first mode in which a first type of sensing process for sensing a fraudulent message in the network is performed and a second mode in which the first type of sensing process is not performed.
    Type: Application
    Filed: December 3, 2018
    Publication date: April 4, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Manabu MAEDA, Hideki MATSUSHIMA, Tomoyuki HAGA, Yuji UNAGAMI, Yoshihiro UJIIE, Takeshi KISHIKAWA
  • Patent number: 10227053
    Abstract: A method for use in an in-vehicle network system is provided. The in-vehicle network system includes a plurality of electronic control units that communicate a data frame having a message authentication code (MAC) added thereto with one another via a bus in accordance with the Controller Area Network (CAN) protocol. The method includes detecting the state of a vehicle having the in-vehicle network system mounted therein and updating a MAC key used to generate the MAC under the condition that the detected state of the vehicle is a predetermined state.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: March 12, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro Ujiie, Hideki Matsushima, Tomoyuki Haga, Manabu Maeda, Yuji Unagami, Takeshi Kishikawa
  • Publication number: 20190068715
    Abstract: A fraud detection method for use in an in-vehicle network system including a plurality of electronic control units that communicate with one another via an in-vehicle network is provided. The method includes receiving at least one data frame sent to the in-vehicle network, verifying a specific identifier in the received data frame only when the received data frame is event-driven data and a state of a vehicle having the in-vehicle network system mounted therein is a predetermined state, detecting the received data frame as an authenticated data frame when the verifying is successful, and detecting the received data frame as a fraudulent data frame when the verifying fails. The predetermined state of the vehicle is the vehicle traveling.
    Type: Application
    Filed: October 25, 2018
    Publication date: February 28, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Takeshi KISHIKAWA, Hideki MATSUSHIMA, Tomoyuki HAGA, Manabu MAEDA, Yuji UNAGAMI, Yoshihiro UJIIE
  • Patent number: 10193896
    Abstract: An electronic control unit is connected to an in-vehicle network bus in an in-vehicle network system including a plurality of apparatuses that perform communication of frames via the bus. The electronic control unit includes a first control circuit and a second control circuit. The first control circuit is connected to the bus via the second control circuit over wired communication and/or wireless communication. The second control circuit performs a first determination process on a received frame received from the bus to determine the conformity with a first rule related to at least a reception interval, and, upon determining that the received frame conforms to the first rule, executes a predetermined process based on the content of the received frame. The first control circuit performs a second determination process on the received frame, received via the second control circuit, to determine the conformity with a second rule different from the first rule.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: January 29, 2019
    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: 10193859
    Abstract: A security apparatus is provided that is connected to a bus. The security apparatus includes a receiver that receives a first frame from the bus, a memory that stores an examination parameter defining a content of an examination on the first frame, and processing circuitry that performs operations. The performed operations include first determining whether a predetermined condition is satisfied for the first frame. The performed operations also include, in a case where the first determining determined that the predetermined condition is satisfied, updating the examination parameter stored in the memory. The performed operations further include second determining whether the first frame is an attack frame based on the updated examination parameter stored in the memory.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: January 29, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Manabu Maeda, Jun Anzai, Yoshihiro Ujiie, Masato Tanabe, Takeshi Kishikawa
  • Patent number: 10187406
    Abstract: A fraud sensing method for use in an in-vehicle network system including a plurality of electronic control units that communicate with each other via a bus includes detecting that a state of a vehicle satisfies a predetermined condition, and switching, upon detecting that the state of the vehicle satisfies the predetermined condition, an operation mode of a fraud-sensing electronic control unit connected to the bus between a first mode in which a first type of sensing process for sensing a fraudulent message in the bus is performed and a second mode in which the first type of sensing process is not performed.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: January 22, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Manabu Maeda, Hideki Matsushima, Tomoyuki Haga, Yuji Unagami, Yoshihiro Ujiie, Takeshi Kishikawa
  • Patent number: 10158717
    Abstract: A fraud detection method for use in an in-vehicle network system including a plurality of electronic control units that communicate with one another via a bus in accordance with Controller Area Network (CAN) protocol is provided. The method includes receiving at least one data frame sent to the bus, verifying a specific identifier in the received data frame only if the received data frame does not follow a predetermined rule regarding a transmission period and a state of a vehicle having the in-vehicle network system mounted therein is a predetermined state, detecting the received data frame as an authenticated data frame if the verification is successful, and detecting the received data frame as a fraudulent data frame if the verification fails.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: December 18, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Takeshi Kishikawa, Hideki Matsushima, Tomoyuki Haga, Manabu Maeda, Yuji Unagami, Yoshihiro Ujiie
  • Patent number: 10137862
    Abstract: An anti-fraud method for use in an in-vehicle network system including a plurality of electronic control units that exchange, in an in-vehicle network, data frames, each having added thereto a message authentication code (MAC). The method includes generating a first MAC by using a MAC key and a value of a counter that counts a number of times a data frame having added thereto a MAC is transmitted to the in-vehicle network. The method also includes performing verification that the data frame received has added thereto the generated first MAC and incrementing a number of error occurrences when the verification has failed for the data frame, the data frame including a predetermined ID. When the number of error occurrences exceeds a predetermined threshold, a process associated in advance with the predetermined ID is executed.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: November 27, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Tomoyuki Haga, Hideki Matsushima, Manabu Maeda, Yuji Unagami, Yoshihiro Ujiie, Takeshi Kishikawa
  • Publication number: 20180316584
    Abstract: An abnormality detection method is provided. The abnormality detection method is for detecting an abnormality that may be transmitted to a bus in an on-board network system. The on-board network system includes a plurality of electronic controllers that transmit and receive messages via the bus in a vehicle according to a CAN protocol. In the abnormality detection method, for example, a gateway transmits vehicle identification information to a server and receives a response determining a unit time. An operation process is performed using feature information based on a number of messages received from the bus per the determined unit time and using a model indicating a criterion in terms of a message occurrence frequency. A judgment is made as to an abnormality according to a result of the operation process.
    Type: Application
    Filed: July 2, 2018
    Publication date: November 1, 2018
    Inventors: YOSHIHIRO UJIIE, TOMOYUKI HAGA, MANABU MAEDA, HIDEKI MATSUSHIMA, TAKESHI KISHIKAWA, JUNICHI TSURUMI, HISASHI KASHIMA, YUKINO TORIUMI, TAKUYA KUWAHARA
  • Publication number: 20180314571
    Abstract: A communication unit receives a message in a network. A first anomaly detector detects an anomalous message by detecting values of a plurality of monitoring items from the message received by the communication unit and determining whether each of the detected values of the plurality of monitoring items is inside a corresponding first reference range and a corresponding second reference range. The second reference range is narrower than the first reference range. The first anomaly detector detects the message as the anomalous message, when any of the detected values is outside the first reference range, and detects the message as the anomalous message, when any of the detected values is inside the first reference range and is outside the second reference range and when a predetermined rule is satisfied.
    Type: Application
    Filed: December 9, 2016
    Publication date: November 1, 2018
    Inventors: MASATO TANABE, JUN ANZAI, MANABU MAEDA, YOSHIHIRO UJIIE, TAKESHI KISHIKAWA
  • Patent number: 10116454
    Abstract: In an authentication method according to the present disclosure, (1) a device transmits device history information with a CRL added thereto (hereinafter, device history information with added CRL) to a controller, (2) the controller transmits the device history information with added CRL to a server, and (3) if the version of the CRL included in the device history information with added CRL is older than the version of the CRL stored on the server, the server judges that the controller is unauthorized.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: October 30, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomoyuki Haga, Motoji Ohmori, Natsume Matsuzaki, Hideki Matsushima, Yuji Unagami, Manabu Maeda, Yoshihiro Ujiie
  • Publication number: 20180302422
    Abstract: An unauthorized activity detection method is provided in an onboard network system having multiple electronic units (ECU) that perform communication via a bus, such that an occurrence of an unauthorized state can be detected by monitoring frames transmitted over the bus. The unauthorized activity detection method determines, by a monitoring electronic control unit using unauthorized activity detection rule information indicating a first condition, whether or not a set of frames received from the bus satisfies the first condition. The first condition being a condition regarding a relation in content between a first frame having a first identifier and a second frame having a second identifier that differs from the first identifier. And the method further detects the occurrence of the unauthorized state in a case where the first condition is not satisfied.
    Type: Application
    Filed: June 19, 2018
    Publication date: October 18, 2018
    Inventors: TAKESHI KISHIKAWA, YOSHIHIRO UJIIE, JUN ANZAI, HIDEKI MATSUSHIMA, MASATO TANABE
  • Publication number: 20180294991
    Abstract: A security device connected to at least one bus in a vehicle is provided. The security device determines, with regard to a frame received from the at least one bus, whether predetermined conditions are satisfied to determine whether the frame is a suspect of being an attack frame. The security device transmits, a determination request to an external device outside of the vehicle in a case where the predetermined conditions are satisfied, and obtains determination results from the external device in accordance with the determination request. The security device outputs first presentation information in the case where the predetermined conditions are satisfied, and outputs second presentation information in a case where the determination results are obtained from the external device.
    Type: Application
    Filed: June 7, 2018
    Publication date: October 11, 2018
    Inventors: JUNICHI TSURUMI, YOSHIHIRO UJIIE, TOSHIHISA NAKANO, HIDEKI MATSUSHIMA, YUJI UNAGAMI
  • Publication number: 20180295147
    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: Application
    Filed: June 11, 2018
    Publication date: October 11, 2018
    Inventors: TOMOYUKI HAGA, HIDEKI MATSUSHIMA, MANABU MAEDA, YOSHIHIRO UJIIE, TAKESHI KISHIKAWA, JUNICHI TSURUMI, JUN ANZAI