Patents by Inventor Jun Anzai

Jun Anzai 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: 11405421
    Abstract: An electronic control apparatus includes: an obtaining unit configured to obtain data transmitted via a network in a system; and a judging unit configured to judge presence or absence of an anomaly in the data obtained by the obtaining unit, based on a transmission state of the data. The judging unit is configured to judge that an anomaly is present in the data, when the transmission state of the data is a transmission stopped state.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: August 2, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kaoru Yokota, Toshihisa Nakano, Jun Anzai
  • Patent number: 11356475
    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: Grant
    Filed: January 23, 2019
    Date of Patent: June 7, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro Ujiie, Jun Anzai, Hideki Matsushima, Tomoyuki Haga
  • Patent number: 11336618
    Abstract: A security apparatus includes a receiver that receives a frame front at least one network, a parameter storage that stores at least one examination parameter defining a content of an examination on a frame, and processing circuitry that performs operations. The operations include judging whether a predetermined condition is satisfied for the frame received by the receiver. When the predetermined condition is satisfied, updating the stored at least one examination parameter, and when the predetermined condition is not satisfied, not updating the stored at least one examination parameter. The operations also include executing an examination, based on the stored at least one examination parameter, as to whether the frame received by the receiver is an attack frame, and performing a process depending on a result of the execution of the examination such that an influence of an attack frame on at least one electronic control unit is suppressed.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: May 17, 2022
    Assignee: PANASONIC INIELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Manabu Maeda, Jun Anzai, Yoshihiro Ujiie, Masato Tanabe, Takeshi Kishikawa
  • Publication number: 20220116405
    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: December 22, 2021
    Publication date: April 14, 2022
    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: 11283601
    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: Grant
    Filed: March 16, 2020
    Date of Patent: March 22, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Tomoyuki Haga, Hideki Matsushima, Manabu Maeda, Yuji Unagami, Jun Anzai
  • Patent number: 11240253
    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: Grant
    Filed: May 12, 2020
    Date of Patent: February 1, 2022
    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: 11084495
    Abstract: A master control device is communicatively coupled to a first slave control device and a second slave control device via a first network and a second network, respectively. The master control device provides output data to the first slave control device based on input data received from the second slave control device. A monitoring apparatus which monitors an operation of the master control device stores determination data indicating a correspondence relationship between the input data and the output data, obtains the input data provided to the second network by the second slave control device and the output data provided to the first slave control device via the first network, and determines a presence or an absence of an anomaly in the operation of the master control device by determining whether the input data and the output data correspond to the determination data.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: August 10, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Toshihisa Nakano, Jun Anzai, Kaoru Yokota
  • Publication number: 20210237665
    Abstract: A vehicle system is a vehicle system used for a vehicle, and includes: a plurality of in-vehicle apparatuses installed in the vehicle; and at least one of (i) a controller that, in accordance with a depth of penetration of a malicious attack carried out on the plurality of in-vehicle apparatuses, changes at least one of a communication method with an outside of the vehicle, a defense method against the malicious attack, or a storage method for logs pertaining to the plurality of in-vehicle apparatuses, or (ii) a determiner that determines whether or not the malicious attack is being carried out based on anomaly detection in the plurality of in-vehicle apparatuses.
    Type: Application
    Filed: April 23, 2021
    Publication date: August 5, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kento TAMURA, Jun ANZAI, Yoshiharu IMAMOTO
  • Patent number: 11075927
    Abstract: A fraud detection electronic control unit is connected to an electronic control unit through an in-vehicle network system. The fraud detection electronic control unit includes a storage and a determination unit. The storage stores a first regulation for determining whether the frame transmitted from the electronic control unit is fraudulent. The determination unit determines whether the frame transmitted from the electronic control unit is fraudulent in pursuant to the first regulation. When a predetermined condition is satisfied, the storage acquires a second regulation retained by the electronic control unit and updates the stored first regulation.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: July 27, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuya Fujimura, Jun Anzai, Masato Tanabe
  • Publication number: 20210188201
    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: March 8, 2021
    Publication date: June 24, 2021
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Tomoyuki HAGA, Toshihisa NAKANO, Jun ANZAI, Hideki MATSUSHIMA, Yoshihiro UJIIE, Yuji UNAGAMI
  • Publication number: 20210144124
    Abstract: A security apparatus includes a receiver that receives a frame front at least one network, a parameter storage that stores at least one examination parameter defining a content of an examination on a frame, and processing circuitry that performs operations. The operations include judging whether a predetermined condition is satisfied for the frame received by the receiver. When the predetermined condition is satisfied, updating the stored at least one examination parameter, and when the predetermined condition is not satisfied, not updating the stored at least one examination parameter. The operations also include executing an examination, based on the stored at least one examination parameter, as to whether the frame received by the receiver is an attack frame, and performing a process depending on a result of the execution of the examination such that an influence of an attack frame on at least one electronic control unit is suppressed.
    Type: Application
    Filed: January 19, 2021
    Publication date: May 13, 2021
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Manabu MAEDA, Jun ANZAI, Yoshihiro UJIIE, Masato TANABE, Takeshi KISHIKAWA
  • Patent number: 10992688
    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: Grant
    Filed: June 19, 2018
    Date of Patent: April 27, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Takeshi Kishikawa, Yoshihiro Ujiie, Jun Anzai, Hideki Matsushima, Masato Tanabe
  • Patent number: 10986093
    Abstract: The monitoring device includes a receiver and a processor. The receiver receives a frame from a communication network. The processor performs a first determination that determines whether the frame is illegal based on a result of message authentication for the frame and a second determination that determines whether the frame is illegal based on a state of the frame and a predetermined rule. In addition, the processor executes, in accordance with a combination of a result of the first determination and a result of the second determination, at least one of processing for the frame, processing for a transmission source device of the frame, change of contents to be notified to an external device, and change of priority of notification to the external device.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: April 20, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jun Anzai, Tomoyuki Haga
  • Patent number: 10974669
    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: October 25, 2019
    Date of Patent: April 13, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Tomoyuki Haga, Toshihisa Nakano, Jun Anzai, Hideki Matsushima, Yoshihiro Ujiie, Yuji Unagami
  • Patent number: 10977373
    Abstract: An evaluation device for evaluating security of an electronic control system in which a plurality of electronic control units are connected to a bus used for communication includes a recording medium that holds attack procedure information indicative of contents and a transmission order of a plurality of frames, a transmitter that transmits the plurality of frames to the bus in the transmission order indicated by the attack procedure information, a monitor that monitors an actuator unit controlled by any of the plurality of electronic control units, and an evaluator that makes the evaluation on basis of a monitoring result obtained by the monitor when the transmitter transmits the plurality of frames to the bus.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: April 13, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Toshihisa Nakano, Jun Anzai, Tohru Wakabayashi, Kimio Minami
  • Publication number: 20210105143
    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: November 23, 2020
    Publication date: April 8, 2021
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yuji UNAGAMI, Manabu MAEDA, Tomoyuki HAGA, Hideki MATSUSHIMA, Jun ANZAI
  • Patent number: 10931634
    Abstract: A gateway serving as a security apparatus connected to one or a plurality of buses includes a receiver that receives a frame from a bus, a parameter storage that stores an examination parameter defining a content of an examination of the frame, an updater configured to, in a case where a predetermined condition is satisfied for the frame received by the receiver, update the examination parameter stored in the parameter storage, and an examiner that performs an examination, based on the examination parameter stored in the parameter storage, in terms of judgment of whether or not the frame received by the receiver is an attack frame.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: February 23, 2021
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Manabu Maeda, Jun Anzai, Yoshihiro Ujiie, Masato Tanabe, Takeshi Kishikawa
  • Patent number: 10917387
    Abstract: An information processing device includes: a first communication unit which transmits and receives communication data through a network connected to a first GW, a second GW, and at least one electronic control unit; a monitoring unit which determines whether the communication data is normal; and a notification unit which transmits, at least to the second GW, a notification that brings the network to a state in which one of a transfer function of the first GW and a transfer function of the second GW gateway is active and the other one of the transfer functions is inactive, when the monitoring unit does not determine that the communication data is normal.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: February 9, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Toshihisa Nakano, Jun Anzai, Masato Tanabe, Kaoru Yokota
  • Publication number: 20210028925
    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 and executing encryption processing based on the shared 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: September 29, 2020
    Publication date: January 28, 2021
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro UJIIE, Jun ANZAI, Yoshihiko KITAMURA, Masato TANABE, Takeshi KISHIKAWA
  • Patent number: 10887111
    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: Grant
    Filed: February 1, 2019
    Date of Patent: January 5, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yuji Unagami, Manabu Maeda, Tomoyuki Haga, Hideki Matsushima, Jun Anzai