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81.发明申请公开(公告)号：US20210185056A1
公开(公告)日：2021-06-17
申请号：US17169978
申请日：2021-02-08
Inventor： Yuji UNAGAMI , Hideki MATSUSHIMA , Tomoyuki HAGA , Manabu MAEDA , Yoshihiro UJIIE , Takeshi KISHIKAWA
IPC: H04L29/06 , H04W4/40 , B60R16/023 , G06F21/57 , G06F21/60 , G06F21/71 , G06F21/85 , H04L12/28 , H04L29/08
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.
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公开(公告)号：US20210151203A1
公开(公告)日：2021-05-20
申请号：US17159629
申请日：2021-01-27
Inventor： Yuji UNAGAMI , Junichiro SOEDA , Junji MICHIYAMA
Abstract: A control method according to the present disclosure is executed by a first server of servers in a system including one or more IoT devices and the servers. The method includes: obtaining first transaction data including operation notification information and time information from each of the IoT devices, the operation notification information including identification information on the IoT device and a notification indicating that the IoT device is operating, the time information indicating a time when the IoT device has obtained the operation notification information; transferring the obtained first transaction data to second servers different from the first server; executing a first consensus algorithm together with the second servers; and recording a block containing the first transaction data in a distributed ledger of the first server, when the authenticity of the first transaction data is verified by the first consensus algorithm.
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公开(公告)号：US20210144451A1
公开(公告)日：2021-05-13
申请号：US17152069
申请日：2021-01-19
Inventor： Junji MICHIYAMA , Junichiro SOEDA , Yuji UNAGAMI , Yuuki HIROSE , Tetsuji FUCHIKAMI , Motoji OHMORI
IPC: H04N21/8355 , H04L9/06 , H04N21/8358 , G06F21/62 , G06F21/64
Abstract: The present disclosure provides a control method that is executed by one of a plurality of servers in a content management system that includes: the plurality of servers that own distributed ledgers; and a storing device that stores content, the control method including: acquiring transaction data that indicates that a providing device has provided content and includes at least identification information of the content provided by the providing device; and storing the transaction data acquired into the distributed ledgers of the plurality of servers.
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公开(公告)号：US20210117537A1
公开(公告)日：2021-04-22
申请号：US17132824
申请日：2020-12-23
Inventor： Yoshihiro UJIIE , Hideki MATSUSHIMA , Tomoyuki HAGA , Yuji UNAGAMI , Takeshi KISHIKAWA
Abstract: A method used in an on-board network system, having electronic controllers that exchange messages and a fraud detecting electronic controller. The method includes determining whether a message transmitted conforms to fraud detection rules, and querying an external device whether there is delivery data for updating the fraud detection rules. When there is the delivery data for updating the fraud detection rules, receiving from an external device the delivery data, including updated fraud detection rules and network type information indicating a network type that the updated fraud detection rules are to be applied. The method also includes determining whether a vehicle in which the on-board network system is installed is running, and whether the network type information indicates a drive network that is connected to an electronic controller related to travel of the vehicle. When the network type information does not indicate the drive network, updating the fraud detection rules.
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公开(公告)号：US20200055470A1
公开(公告)日：2020-02-20
申请号：US16664192
申请日：2019-10-25
Inventor： Tomoyuki HAGA , Toshihisa NAKANO , Jun ANZAI , Hideki MATSUSHIMA , Yoshihiro UJIIE , Yuji UNAGAMI
IPC: B60R16/023 , H04L12/66 , H04L12/40 , H04L12/46 , H04L9/32
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.
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Patent Agency Ranking
公开(公告)号：US20190272601A1
公开(公告)日：2019-09-05
申请号：US16287300
申请日：2019-02-27
Inventor： Yuji UNAGAMI , Hideki MATSUSHIMA
Abstract: Provided is a control method including: receiving, from first power equipment, first transaction data including, for example, transmitted power amount information indicating the amount of power transmitted to power accumulation equipment; obtaining, from the power accumulation equipment, received power information including, for example, received power amount information indicating the amount of power received from the first power equipment; verifying the first transaction data by referring to the received power information; executing a first consensus algorithm with second servers when the first transaction data is verified successfully; and recording a block including the first transaction data in a distributed ledger of a first server when the validity of the first transaction data is verified through the first consensus algorithm.
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公开(公告)号：US20190104143A1
公开(公告)日：2019-04-04
申请号：US16207875
申请日：2018-12-03
Inventor： Manabu MAEDA , Hideki MATSUSHIMA , Tomoyuki HAGA , Yuji UNAGAMI , Yoshihiro UJIIE , Takeshi KISHIKAWA
IPC: H04L29/06 , B60R16/023 , H04L12/28 , H04L29/08 , H04L12/40
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.
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公开(公告)号：US20160149890A1
公开(公告)日：2016-05-26
申请号：US15012915
申请日：2016-02-02
Inventor： Yoshihiro UJIIE , Motoji OHMORI , Hideki MATSUSHIMA , Tomoyuki HAGA , Manabu MAEDA , Yuji UNAGAMI
CPC classification number: H04L63/08 , G06F21/44 , H04L9/3268 , H04L12/2803 , H04L12/4625 , H04L63/0823 , H04L63/101
Abstract: An authentication method for at least one of a plurality of devices connected to a HAN includes checking, with a first device among the plurality of devices, validity of a second device using a CRL including attribute information regarding the second device among the plurality of devices, and revoking, with the first device, the second device if a result of the checking is negative.
Abstract translation: 用于连接到HAN的多个设备中的至少一个的认证方法包括：使用包括所述多个设备中的关于所述第二设备的属性信息的CRL来检查所述多个设备中的第一设备的第二设备的有效性， 并且如果检查的结果是否定的，则使用第一设备撤销第二设备。
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公开(公告)号：US20240257277A1
公开(公告)日：2024-08-01
申请号：US18629106
申请日：2024-04-08
Inventor： Yuji UNAGAMI , Hideki MATSUSHIMA
IPC: G06Q50/06 , G06F1/28 , G06Q20/08 , G06Q20/14 , G06Q20/38 , G07F15/00 , H02J3/38 , H02J13/00 , H04L9/40
CPC classification number: G06Q50/06 , G06F1/28 , G06Q20/0855 , G06Q20/145 , G06Q20/389 , G07F15/003 , H02J13/00007 , H02J3/388 , H04L63/0853
Abstract: Provided is a control method including: receiving, from first power equipment, first transaction data including, for example, transmitted power amount information indicating the amount of power transmitted to power accumulation equipment; obtaining, from the power accumulation equipment, received power information including, for example, received power amount information indicating the amount of power received from the first power equipment; verifying the first transaction data by referring to the received power information; executing a first consensus algorithm with second servers when the first transaction data is verified successfully; and recording a block including the first transaction data in a distributed ledger of a first server when the validity of the first transaction data is verified through the first consensus algorithm.
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公开(公告)号：US20240169083A1
公开(公告)日：2024-05-23
申请号：US18425252
申请日：2024-01-29
Inventor： Ayaka NAKASAKA , Yuji UNAGAMI , Kakuya YAMAMOTO , Tomoyuki HAGA
CPC classification number: G06F21/6218 , G06F21/64
Abstract: A verification method includes: obtaining log information items generated in a device; storing the log information items in storage, and storing, in a blockchain, converted information items obtained by converting the log information items; and conducting, at a predetermined frequency, verification as to whether at least one of a target log information item or a target converted information item has been tampered with, based on the target log information item and the target converted information item, the target log information item being included in the log information items and targeted for verification, the target converted information item being included in the converted information items and corresponding to the target log information item. A higher frequency is determined as the predetermined frequency when a time point at which the target converted information item was stored in the blockchain is closer to a current time at which the verification is conducted.
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