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21.发明授权公开(公告)号：US11983282B2
公开(公告)日：2024-05-14
申请号：US17990152
申请日：2022-11-18
Inventor： Yuji Unagami
CPC classification number: G06F21/602 , H04L9/0637 , H04L9/0643 , H04L9/3247 , H04L9/50
Abstract: Provided is a data protection method which includes: receiving transaction data which includes a first hash value obtained from history information of a home; obtaining, from a data server, a second hash value computed by the data server performing computation processing on encrypted history information without decrypting the encrypted history information, the encrypted history information being history information of the home encrypted using a secure computation method which enables computation without decrypting the encrypted history information, the encrypted history information being obtained from the home; verifying the transaction data, and determining whether the first hash value and the second hash value match; and when a validity of the transaction data is verified and the first hash value and the second hash value match, recording the transaction data in a distributed ledger.
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公开(公告)号：US11710198B2
公开(公告)日：2023-07-25
申请号：US17532110
申请日：2021-11-22
Inventor： Yuji Unagami , Hideki Matsushima
IPC: G06Q50/06 , G06F1/28 , G06Q20/38 , G07F15/00 , G06Q20/08 , G06Q20/14 , H02J13/00 , H04L9/40 , H02J3/38
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：US11283601B2
公开(公告)日：2022-03-22
申请号：US16820428
申请日：2020-03-16
Inventor： Tomoyuki Haga , Hideki Matsushima , Manabu Maeda , Yuji Unagami , Jun Anzai
IPC: H04L29/06 , H04L9/08 , G06F8/654 , G06F21/62 , G06F21/57 , G06F21/44 , B60R16/023 , G06F8/65 , H04L67/12
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.
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公开(公告)号：US11120035B2
公开(公告)日：2021-09-14
申请号：US16516721
申请日：2019-07-19
Inventor： Yuji Unagami , Natsume Matsuzaki
Abstract: An information provision method includes accumulating, in a first database, a first identifier identifying each of one or more service providers, and first device information indicating an electrical device to be designated by each of the one or more service providers in association with each other; accumulating, in a second database, a second identifier identifying each of one or more users, and second device information indicating an electrical device to be used by the one or more users in association with each other; extracting a service provider associated with the first device information when the second device information is updated by addition of a new electrical device to be used by one of the one or more users, and when the new electrical device is included in the electrical devices indicated by the first device information.
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公开(公告)号：US10972303B2
公开(公告)日：2021-04-06
申请号：US16716770
申请日：2019-12-17
Inventor： Ayaka Ichijo , Motoji Ohmori , Yuichi Futa , Yuji Unagami , Natsume Matsuzaki
Abstract: Address information of a mail to be transmitted by a mail communication function is extracted from the mail to be transmitted; a transmission time of the mail to be transmitted is extracted from a portable information terminal; and judgment is made as to whether the address information matches predetermined address information and whether the transmission time belongs to a predetermined time zone. When the address information matches the predetermined address information, and the address information belongs to the predetermined time zone, an activation time at which a household appliance is to be activated is determined on the basis of the transmission time, and a control command for activating the household appliance at the activation time is transmitted to a network.
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Patent Agency Ranking
公开(公告)号：US10554434B2
公开(公告)日：2020-02-04
申请号：US16048995
申请日：2018-07-30
Inventor： Ayaka Ichijo , Motoji Ohmori , Yuichi Futa , Yuji Unagami , Natsume Matsuzaki
Abstract: Address information of a mail to be transmitted by a mail communication function is extracted from the mail to be transmitted; a transmission time of the mail to be transmitted is extracted from a portable information terminal; and judgment is made as to whether the address information matches predetermined address information and whether the transmission time belongs to a predetermined time zone. When the address information matches the predetermined address information, and the address information belongs to the predetermined time zone, an activation time at which a household appliance is to be activated is determined on the basis of the transmission time, and a control command for activating the household appliance at the activation time is transmitted to a network.
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公开(公告)号：US10525911B2
公开(公告)日：2020-01-07
申请号：US15881826
申请日：2018-01-29
Inventor： Tomoyuki Haga , Toshihisa Nakano , Jun Anzai , Hideki Matsushima , Yoshihiro Ujiie , Yuji Unagami
IPC: H04L12/40 , B60R16/023 , H04L12/66 , H04L9/32 , H04L12/46
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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公开(公告)号：US10454957B2
公开(公告)日：2019-10-22
申请号：US15275860
申请日：2016-09-26
Inventor： Yoshihiro Ujiie , Hideki Matsushima , Tomoyuki Haga , Manabu Maeda , Yuji Unagami , Takeshi Kishikawa
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.
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29.发明授权公开(公告)号：US10432645B2
公开(公告)日：2019-10-01
申请号：US15285706
申请日：2016-10-05
Inventor： Yuji Unagami , Hideki Matsushima , Tomoyuki Haga , Manabu Maeda , Yoshihiro Ujiie , Takeshi Kishikawa
IPC: H04L29/06 , B60R16/023 , H04L12/28 , H04L29/08 , G06F21/57 , G06F21/60 , G06F21/71 , G06F21/85 , H04W4/40
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.
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公开(公告)号：US20190294783A1
公开(公告)日：2019-09-26
申请号：US16431002
申请日：2019-06-04
Inventor： Yoshihiro UJIIE , Hideki Matsushima , Tomoyuki Haga , Yuji Unagami , Takeshi Kishikawa
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.
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