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: 10615986
    Abstract: A device in an authentication system acquires a certificate revocation list along with a control command from an operating terminal to the device. The device determines the validity of the controller to which the device connects, based on the certificate revocation list acquired along with the control command.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: April 7, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshihiro Ujiie, Motoji Ohmori, Natsume Matsuzaki, Hideki Matsushima, Tomoyuki Haga, Manabu Maeda, Yuji Unagami
  • Patent number: 10609049
    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: Grant
    Filed: December 3, 2018
    Date of Patent: March 31, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Manabu Maeda, Hideki Matsushima, Tomoyuki Haga, Yuji Unagami, Yoshihiro Ujiie, Takeshi Kishikawa
  • Publication number: 20200099712
    Abstract: An anomaly detection electronic controller performs anomaly detection processing and is connected to a network, which a plurality of electronic controllers uses for communication. The anomaly detection electronic controller includes an anomaly detection processor that performs anomaly detection processing regarding a data frame. The anomaly detection controller also includes an anomaly detection processing requester that decides an anomaly detection processing timing when receiving the data frame, the anomaly detection processing timing being a reception timing of one or multiple fields in the data frame. The anomaly detection processor further performs the anomaly detection processing regarding the data frame at the anomaly detection processing timing decided by the anomaly detection processing requester.
    Type: Application
    Filed: November 26, 2019
    Publication date: March 26, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Takeshi KISHIKAWA, Yoshihiro UJIIE, Tomoyuki HAGA, Hideki MATSUSHIMA
  • 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: 20200084025
    Abstract: A key management method serves as an electronic control unit (ECU) in an onboard network system having a plurality of ECUs that perform communication by frames via a network. The method includes storing a shared key, acquiring a session key, and executing encryption processing using the session key. The method further includes executing inspection of a security state of the shared key stored in a case where a vehicle is in at least one of the following particular states: the vehicle is not driving and is an accessory-on state; a fuel cap of the vehicle is open, and the vehicle is not driving and is fueling; the vehicle is parked, which is indicated by the gearshift; the vehicle is in a stopped state before driving, which is indicated by the gearshift; and a charging plug is connected to the vehicle, and the vehicle is electrically charging.
    Type: Application
    Filed: November 18, 2019
    Publication date: March 12, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro UJIIE, Jun ANZAI, Yoshihiko KITAMURA, Masato TANABE, Takeshi KISHIKAWA
  • 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: 10530801
    Abstract: An anomaly detection electronic controller performs anomaly detection processing and is connected to a bus, which a plurality of electronic controllers use for communication to communicate following a Controller Area Network (CAN) protocol. The anomaly detection electronic controller includes an anomaly detection processor that performs anomaly detection processing regarding a data frame. The anomaly detection controller also includes an anomaly detection processing requester that decides an anomaly detection processing timing in accordance with a state of a vehicle in which the bus is installed when receiving the data frame, the anomaly detection processing timing being a reception timing of one or multiple fields in the data frame. The anomaly detection processor further performs the anomaly detection processing regarding the data frame at the anomaly detection processing timing decided by the anomaly detection processing requester.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: January 7, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Takeshi Kishikawa, Yoshihiro Ujiie, Tomoyuki Haga, Hideki Matsushima
  • 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: 10530572
    Abstract: Provided is a key management method to secure security in an onboard network system having multiple electronic control units storing a shared key. In the key management method of the onboard network system including multiple electronic units (ECUs) that perform communication by frames via a bus, a master ECU stores a shared key to be mutually shared with one or more ECUs. Each of the ECUs acquire a session key by communication with the master ECU based on the stored shared key, and after this acquisition, executes encryption processing regarding a frame transmitted or received via the bus, using this session key. In a case where a vehicle in which the onboard network system is installed is in a particular state, the master ECU executes inspection of a security state of the shared key stored by the ECU or the like.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: January 7, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro Ujiie, Jun Anzai, Yoshihiko Kitamura, Masato Tanabe, Takeshi Kishikawa
  • Publication number: 20200007567
    Abstract: A method for use in a network communication system including a plurality of electronic controllers that communicate with each other via a bus in accordance with a Controller Area Network (CAN) protocol determines whether or not content of a predetermined field in a frame which has started to be transmitted meets a predetermined condition indicating fraud. In a case where the content of the predetermined field meets the predetermined condition, an error frame is transmitted before an end of the frame is transmitted. A number of times the error frame is transmitted is recorded for each identifier (ID) represented by content of an ID field included in a plurality of frames which has been transmitted. A malicious electronic controller is determined in accordance with the number of times recorded for each ID.
    Type: Application
    Filed: September 10, 2019
    Publication date: January 2, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro UJIIE, Hideki MATSUSHIMA, Tomoyuki HAGA, Manabu MAEDA, Yuji UNAGAMI, Takeshi KISHIKAWA
  • Publication number: 20190372996
    Abstract: In a fraud-detection method for use in an in-vehicle network system including a plurality of electronic control units (ECUs) that exchange messages on a plurality of networks, a plurality of fraud-detection ECUs each connected to a different one of the networks, and a gateway device, a fraud-detection ECU determines whether a message transmitted on a network connected to the fraud-detection ECU is malicious by using rule information stored in a memory. The gateway device receives updated rule information transmitted to a first network among the networks, selects a second network different from the first network, and transfers the updated rule information only to the second network. A fraud-detection ECU connected to the second network acquires the updated rule information and updates the rule information stored therein by using the updated rule information.
    Type: Application
    Filed: August 14, 2019
    Publication date: December 5, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yuji UNAGAMI, Hideki MATSUSHIMA, Tomoyuki HAGA, Manabu MAEDA, Yoshihiro UJIIE, Takeshi KISHIKAWA
  • Patent number: 10462226
    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: Grant
    Filed: October 25, 2018
    Date of Patent: October 29, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Takeshi Kishikawa, Hideki Matsushima, Tomoyuki Haga, Manabu Maeda, Yuji Unagami, Yoshihiro Ujiie
  • Patent number: 10454957
    Abstract: A method for use in a network communication system including a plurality of electronic controllers that communicate with each other via a bus in accordance with a Controller Area Network (CAN) protocol includes determining whether or not content of a predetermined field in a transmitted frame meets a predetermined condition indicating fraud, transmitting an error frame before an end of the frame is transmitted in a case where it is determined that the frame meets the predetermined condition, recording a number of times the error frame is transmitted, for each identifier (ID) represented by content of an ID field included in a plurality of frames which has been transmitted, and providing a notification in a case where the number of times recorded for an ID exceeds a predetermined count.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: October 22, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro Ujiie, Hideki Matsushima, Tomoyuki Haga, Manabu Maeda, Yuji Unagami, Takeshi Kishikawa
  • Patent number: 10432645
    Abstract: In a fraud-detection method for use in an in-vehicle network system including a plurality of electronic control units (ECUs) that exchange messages on a plurality of buses, a plurality of fraud-detection ECUs each connected to a different one of the buses, and a gateway device, a fraud-detection ECU determines whether a message transmitted on a bus connected to the fraud-detection ECU is malicious by using rule information stored in a memory. The fraud-detection ECU transmits an error message including a message identifier of a message determined to be malicious. The gateway device receives updated rule information transmitted to a first bus among the buses, selects a second bus different from the first bus, and transfers the updated rule information only to the second bus. A fraud-detection ECU connected to the second bus acquires the updated rule information and updates the rule information stored therein by using the updated rule information.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: October 1, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yuji Unagami, Hideki Matsushima, Tomoyuki Haga, Manabu Maeda, Yoshihiro Ujiie, Takeshi Kishikawa
  • Publication number: 20190294783
    Abstract: A method for a fraud detecting controller connected to networks for communication by a plurality of controllers, includes, storing fraud detection rules, determining whether a message transmitted on the network connected to the fraud detecting controller conforms to the rules, receiving data including updated fraud detection rules and network type information indicating one network type to which the updated fraud detection rules are to be applied; and determining whether a vehicle having an on-board network is running, the on-board network including the plurality of controllers. When the vehicle is running, additionally determining whether the network type information indicates a drive network which is connected to a controller related to vehicle travel, when the network type information indicates the drive network, not updating to the updated fraud detection rules, and when the network type information does not indicate the drive network, updating to the updated fraud detection rules.
    Type: Application
    Filed: June 4, 2019
    Publication date: September 26, 2019
    Applicant: Panasonic Intellectual Property Corporation of America
    Inventors: Yoshihiro UJIIE, Hideki Matsushima, Tomoyuki Haga, Yuji Unagami, Takeshi Kishikawa
  • Patent number: 10411904
    Abstract: A first device, upon detecting participation in an authentication system, transmits new and old identification information of a first certificate revocation list that the first device manages to a second device. In a case where the new and old identification information of a second certificate revocation list that the second device manages is older than the new and old identification information of the received first certificate revocation list, the second device transmits a transmission request for the first certificate revocation list to the first device. Upon receiving the transmission request for the first certificate revocation list from the second device, the first device transmits the first certificate revocation list to the second device. the second device updates the second certificate revocation list using the received first certificate revocation list.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: September 10, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Manabu Maeda, Natsume Matsuzaki, Motoji Ohmori, Hideki Matsushima, Tomoyuki Haga, Yuji Unagami, Yoshihiro Ujiie
  • Publication number: 20190263336
    Abstract: An anomaly handling method using a roadside device is disclosed. The method includes receiving, from a vehicle, an anomaly detection notification, which includes level information indicating a level affecting safety, and a location of the vehicle. The method also includes obtaining a location of the roadside device and determining whether a distance between the location of the vehicle and the location of the roadside device is within a predetermined range. When the distance is within the predetermined range and shorter than a first predetermined distance, transmitting the received anomaly detection notification externally from the roadside device. When the distance is within the predetermined range and is longer than or equal to the first predetermined distance, changing to decrement a level indicated by the level information, and transmitting changed anomaly detection notification. When the distance is not within the predetermined range, not transmitting the received anomaly detection notification.
    Type: Application
    Filed: May 15, 2019
    Publication date: August 29, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Tomoyuki HAGA, Hideki MATSUSHIMA, Yoshihiro UJIIE, Takeshi KISHIKAWA
  • Publication number: 20190260790
    Abstract: An anomaly detection electronic controller performs anomaly detection processing and is connected to a bus, which a plurality of electronic controllers use for communication to communicate following a Controller Area Network (CAN) protocol. The anomaly detection electronic controller includes an anomaly detection processor that performs anomaly detection processing regarding a data frame. The anomaly detection controller also includes an anomaly detection processing requester that decides an anomaly detection processing timing in accordance with a state of a vehicle in which the bus is installed when receiving the data frame, the anomaly detection processing timing being a reception timing of one or multiple fields in the data frame. The anomaly detection processor further performs the anomaly detection processing regarding the data frame at the anomaly detection processing timing decided by the anomaly detection processing requester.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Takeshi Kishikawa, Yoshihiro Ujiie, Tomoyuki Haga, Hideki Matsushima
  • Patent number: 10372903
    Abstract: Provided is a fraud detection rule updating method enabling the updating of rules that serve as the basis for detecting malicious frames as necessary in an on-board network system. In an on-board network system equipped with multiple electronic control units (ECUs) that communicate via buses and fraud detecting ECUs that determine, based on fraud detection rules, whether messages transmitted on the buses conform to the rules, a fraud detection rule updating method is used in which delivery data including updated fraud detection rules is received from a server external to the on-board network system, and if a certain update condition is satisfied, the fraud detection rules in a fraud detecting ECU are updated to the updated fraud detection rules.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: August 6, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro Ujiie, Hideki Matsushima, Tomoyuki Haga, Yuji Unagami, Takeshi Kishikawa
  • Publication number: 20190239221
    Abstract: A communication device is a communication device connected to a mobility network which is a network mounted in a mobility and which is used by a plurality of electronic control devices for communication. The communication device includes: a holding unit which holds range information indicating a transferable path range determined for a message on the mobility network; a receiving unit which receives the message on the mobility network; and a determining unit which determines validity of the received message by using the range information.
    Type: Application
    Filed: April 10, 2019
    Publication date: August 1, 2019
    Inventors: Yoshihiro UJIIE, Yuishi TORISAKI, Tomoyuki HAGA, Hiroyasu TERAZAWA, Ryo KATO