Patents by Inventor Daisuke Kunimune

Daisuke Kunimune 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: 20220368708
    Abstract: An unauthorized activity detection method in an onboard network system. The detection method includes determining whether or not a message sent out onto the network is an attack message, saving information relating to the attack message in at least one memory in a case where the message is an attack message, identifying a communication pattern from information relating to the attack message, and determining whether or not the message matches a communication pattern. The determination of whether an attack message and determination of whether matching a communication pattern are executed on each of a plurality of messages received from the network. In the determining of whether an attack message executed on a message received after executing of determining of whether matching a communication pattern, results of the determination of whether an attack message that has already be executed are used.
    Type: Application
    Filed: July 28, 2022
    Publication date: November 17, 2022
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Manabu MAEDA, Takeshi KISHIKAWA, Daisuke KUNIMUNE
  • Publication number: 20220311781
    Abstract: A selection method is for selecting a reference message to be used to detect unauthorized communication in an in-vehicle network system including a network and one or more electronic control units connected to the network. The reference message is used as a reference for determining whether a message sent to the network is anomalous. The selection method includes: storing candidate information regarding one or more reference message candidates each being a candidate of the reference message; selecting, based on the candidate information regarding the one or more reference message candidates stored in the storing, the selection method for selecting the reference message from among the one or more reference message candidates; and selecting the reference message from among the one or more reference message candidates using the selection method.
    Type: Application
    Filed: June 14, 2022
    Publication date: September 29, 2022
    Applicant: Panasonic Intellectual Property Corporation of America
    Inventors: Manabu MAEDA, Daisuke KUNIMUNE
  • Patent number: 11438350
    Abstract: An unauthorized activity detection method in an onboard network system. The detection method includes determining whether or not a message sent out onto the network is an attack message, saving information relating to the attack message in at least one memory in a case where the message is an attack message, identifying a communication pattern from information relating to the attack message, and determining whether or not the message matches a communication pattern. The determination of whether an attack message and determination of whether matching a communication pattern are executed on each of a plurality of messages received from the network. In the determining of whether an attack message executed on a message received after executing of determining of whether matching a communication pattern, results of the determination of whether an attack message that has already be executed are used.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: September 6, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Manabu Maeda, Takeshi Kishikawa, Daisuke Kunimune
  • Publication number: 20210194902
    Abstract: An unauthorized activity detection method in an onboard network system. The detection method includes determining whether or not a message sent out onto the network is an attack message, saving information relating to the attack message in at least one memory in a case where the message is an attack message, identifying a communication pattern from information relating to the attack message, and determining whether or not the message matches a communication pattern. The determination of whether an attack message and determination of whether matching a communication pattern are executed on each of a plurality of messages received from the network. In the determining of whether an attack message executed on a message received after executing of determining of whether matching a communication pattern, results of the determination of whether an attack message that has already be executed are used.
    Type: Application
    Filed: March 8, 2021
    Publication date: June 24, 2021
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Manabu MAEDA, Takeshi KISHIKAWA, Daisuke KUNIMUNE
  • Patent number: 10986105
    Abstract: An unauthorized activity detection method in an onboard network system. The detection method includes determining whether or not a message sent out onto the network is an attack message, saving information relating to the attack message in at least one memory in a case where the message is an attack message, identifying a communication pattern from information relating to the attack message, and determining whether or not the message matches a communication pattern. The determination of whether an attack message and determination of whether matching a communication pattern are executed on each of a plurality of messages received from the network. In the determining of whether an attack message executed on a message received after executing of determining of whether matching a communication pattern, results of the determination of whether an attack message that has already be executed are used.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: April 20, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Manabu Maeda, Takeshi Kishikawa, Daisuke Kunimune
  • Publication number: 20200389475
    Abstract: A method, system, and medium used in unauthorized communication detection in an onboard network system having electronic control units connected to a network include: identifying, from information relating to an attack message on the onboard network system, a communication pattern indicating features of the attack message; determining whether a candidate reference message matches the communication pattern; and determining a reference message used as a reference in determining whether or not a message sent out onto the network is an attack message, using results of the determining of whether or not the candidate reference message matches the communication pattern identified in the identifying operation.
    Type: Application
    Filed: August 24, 2020
    Publication date: December 10, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Manabu MAEDA, Takeshi KISHIKAWA, Daisuke KUNIMUNE
  • Patent number: 10791129
    Abstract: A reference message deciding method used in unauthorized communication detection. The deciding method includes: identifying, from information relating to an attack message on the onboard network system, a communication pattern indicating features related to change in data values or communication timing of an attack message; determining whether or not a message sent out onto the network matches a communication pattern identified in the identifying; and deciding a reference message used in determining whether or not the message sent out is an attack message, using determination results of the determining.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: September 29, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Manabu Maeda, Takeshi Kishikawa, Daisuke Kunimune
  • Publication number: 20200021611
    Abstract: A fraud detection method includes: determining whether a period of a message repeatedly transmitted in an in-vehicle network is anomalous; detecting whether arbitration occurs when the message is transmitted in the in-vehicle network; and determining that the message is an anomalous message, in the case where the period of the message is anomalous and no arbitration occurs when the message is transmitted in the in-vehicle network.
    Type: Application
    Filed: September 26, 2019
    Publication date: January 16, 2020
    Inventors: Manabu MAEDA, Takeshi KISHIKAWA, Daisuke KUNIMUNE
  • Publication number: 20190149562
    Abstract: A reference message deciding method used in unauthorized communication detection. The deciding method includes: identifying, from information relating to an attack message on the onboard network system, a communication pattern indicating features related to change in data values or communication timing of an attack message; determining whether or not a message sent out onto the network matches a communication pattern identified in the identifying; and deciding a reference message used in determining whether or not the message sent out is an attack message, using determination results of the determining.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 16, 2019
    Inventors: MANABU MAEDA, TAKESHI KISHIKAWA, DAISUKE KUNIMUNE
  • Publication number: 20190149561
    Abstract: An unauthorized activity detection method in an onboard network system. The detection method includes determining whether or not a message sent out onto the network is an attack message, saving information relating to the attack message in at least one memory in a case where the message is an attack message, identifying a communication pattern from information relating to the attack message, and determining whether or not the message matches a communication pattern. The determination of whether an attack message and determination of whether matching a communication pattern are executed on each of a plurality of messages received from the network. In the determining of whether an attack message executed on a message received after executing of determining of whether matching a communication pattern, results of the determination of whether an attack message that has already be executed are used.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 16, 2019
    Inventors: MANABU MAEDA, TAKESHI KISHIKAWA, DAISUKE KUNIMUNE
  • Patent number: 8051270
    Abstract: A memory controller for reducing a time to create an address management table during initialization of a memory card. The memory controller includes a read-write memory for temporarily storing the address management table and a second memory controller for writing, in a nonvolatile memory, an address management table temporarily stored in the read-write memory. The second memory controller also writes address range specifying information that specifies an address range, when a data writing destination is changed from a first address range to a second address range. The memory controller includes an address management table generator for reading distributed management information used for managing a state of at least one physical block included in the destination address range specified by the address range specifying information during initialization, and to generate the address management table based on the distributed management information.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: November 1, 2011
    Assignee: Panasonic Corporation
    Inventors: Daisuke Kunimune, Masahiro Nakanishi, Manabu Inoue, Tomoaki Izumi, Tetsushi Kasahara, Kazuaki Tamura, Kiminori Matsuno
  • Patent number: 8051268
    Abstract: For address management of a nonvolatile memory, the whole logical address space is divided into logical address ranges (0 to 15), and the physical address space is divided into physical areas (segments (0 to 15)). The logical address ranges are respectively associated with the physical areas (segments) to manage the addresses. The sizes of the logical address ranges are equalized. The size of the physical area (segment (0)) corresponding to the logical address range (0) in which data of high rewrite frequency such as an FAT is expected to be stored is larger than those of the other physical areas, and the logical address ranges and the physical areas are allocated. Alternatively, the sizes of the physical areas are equalized, and the size of the logical address range (0) is set as a smaller one than those of the other logical address ranges. With this, the actual rewrite frequencies of the physical areas (segments) are equal to one another, and consequently the life of the nonvolatile memory can be prolonged.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: November 1, 2011
    Assignee: Panasonic Corporation
    Inventors: Masahiro Nakanishi, Tetsushi Kasahara, Tomoaki Izumi, Kiminori Matsuno, Daisuke Kunimune, Kazuaki Tamura, Yoshiyuki Konishi
  • Patent number: 7809877
    Abstract: A host controller can divide a preliminary process for writing to a memory card, or the like, into a plurality of unit processes for execution. While writing or the like is being performed with respect to a memory card (card 1), a new-card preliminary division process of performing one unit process of the preliminary process with respect to a new memory card (card 2) is repeatedly executed. Thereby, the interrupt time of writing or the like due to the preliminary process of the card 2 is divided and distributed, so that each interrupt time division of writing or the like can be reduced.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: October 5, 2010
    Assignee: Panasonic Corporation
    Inventors: Yoshiyuki Konishi, Daisuke Kunimune
  • Publication number: 20090063742
    Abstract: A host controller can divide a preliminary process for writing to a memory card, or the like, into a plurality of unit processes for execution. While writing or the like is being performed with respect to a memory card (card 1), a new-card preliminary division process of performing one unit process of the preliminary process with respect to a new memory card (card 2) is repeatedly executed. Thereby, the interrupt time of writing or the like due to the preliminary process of the card 2 is divided and distributed, so that each interrupt time division of writing or the like can be reduced.
    Type: Application
    Filed: August 19, 2008
    Publication date: March 5, 2009
    Inventors: Yoshiyuki KONISHI, Daisuke KUNIMUNE
  • Publication number: 20090055618
    Abstract: For address management of a nonvolatile memory, the whole logical address space is divided into logical address ranges (0 to 15), and the physical address space is divided into physical areas (segments (0 to 15)). The logical address ranges are respectively associated with the physical areas (segments) to manage the addresses. The sizes of the logical address ranges are equalized. The size of the physical area (segment (0)) corresponding to the logical address range (0) in which data of high rewrite frequency such as an FAT is expected to be stored is larger than those of the other physical areas, and the logical address ranges and the physical areas are allocated. Alternatively, the sizes of the physical areas are equalized, and the size of the logical address range (0) is set as a smaller one than those of the other logical address ranges. With this, the actual rewrite frequencies of the physical areas (segments) are equal to one another, and consequently the life of the nonvolatile memory can be prolonged.
    Type: Application
    Filed: July 21, 2006
    Publication date: February 26, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Masahiro Nakanishi, Tetsushi Kasahara, Tomoaki Izumi, Kiminori Matsuno, Daisuke Kunimune, Kazuaki Tamura, Yoshiyuki Konishi
  • Publication number: 20080168252
    Abstract: The invention presents a memory controller capable of shortening the creation time of address management table at the time of initialization of memory card, while avoiding decline of access speed due to process of writing back the address management table in normal operation.
    Type: Application
    Filed: May 18, 2006
    Publication date: July 10, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Daisuke Kunimune, Masahiro Nakanishi, Manabu Inoue, Tomoaki Izumi, Tetsushi Kasahara, Kazuaki Tamura, Kiminori Matsuno