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公开(公告)号：US20220309495A1
公开(公告)日：2022-09-29
申请号：US17838846
申请日：2022-06-13
Inventor： Yuji UNAGAMI , Junji MICHIYAMA , Junichiro SOEDA , Motoji OHMORI , Tetsuji FUCHIKAMI , Yuuki HIROSE , Naohisa NISHIDA , Masahiro TAGUCHI
Abstract: A control method includes: obtaining first transaction data that includes a first variable indicating first information on a first contract made between a first user and a second user, and a second variable set to a predetermined value indicating second information is undetermined; storing the first transaction data into the distributed ledger; executing storing processing of reading out the second variable, and storing it into a rewritable storage in a server; obtaining second transaction data that includes a third variable indicating third information on a second contract made between the first user and a third user, and a change command for changing the second variable, based on the third variable; storing the second transaction data into the distributed ledger; and executing change processing of changing, according to the change command, the second variable from the predetermined value, after the second transaction data is stored into the distributed ledger.
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公开(公告)号：US20220286375A1
公开(公告)日：2022-09-08
申请号：US17825150
申请日：2022-05-26
Inventor： Michiko SASAGAWA , Motoji OHMORI , Yuji UNAGAMI , Hideo UMETANI , Kazunori ISOGAI
IPC: H04L43/10 , G06Q30/02 , H04L41/0816
Abstract: An information notification method for providing information from a server device to a plurality of devices connected to a network, including: reading notification information stored in association with information indicating a particular action of a user; acquiring operation histories of the plurality of devices;
estimating, based on operation histories of one or more devices owned by the user among the plurality of devices, a no-operation period during which the user is unlikely to operate the one or more devices; determining, based on current operation state of the one or more devices, whether the particular action has been performed outside the no-operation period; and transmitting, when outcome of the determining is affirmative, the notification information associated with the particular action to a destination device among the one or more devices owned by the user. The destination device provides the user with the notification information.-
公开(公告)号：US20220150074A1
公开(公告)日：2022-05-12
申请号：US17582400
申请日：2022-01-24
Inventor： Yuji UNAGAMI , Junji MICHIYAMA , Junichiro SOEDA , Naohisa NISHIDA , Yuuki HIROSE , Tetsuji FUCHIKAMI , Motoji OHMORI
Abstract: A control method includes: receiving first information pertaining to a first contract from a first terminal used by a first user who is one of two parties who have agreed to the first contract; when consent of a party aside from the two parties is required to validate the first contract, identifying a second user as the party aside from the two parties with reference to a ledger storing information pertaining to a past contract, and transmitting the first information to a second terminal operated by the second user; obtaining second information in which a confirmation result indicating whether the second user consents to the first contract and a digital signature of the second user are added to the first information; and confirming the second information, and when the confirmation result indicates consent, setting the first contract as a valid contract and storing the second information in the ledger.
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公开(公告)号：US20220027357A1
公开(公告)日：2022-01-27
申请号：US17497302
申请日：2021-10-08
Inventor： Yuji UNAGAMI , Junji MICHIYAMA , Junichiro SOEDA , Yuuki HIROSE , Tetsuji FUCHIKAMI , Motoji OHMORI
IPC: G06F16/23
Abstract: A control method according to the present disclosure includes: receiving, from a terminal operated by a first user who is one of parties that have concluded a first contract, first transaction data that includes a first smart contract corresponding to the first contract and a first electronic signature associated with the first user; executing a consensus algorithm with a plurality of other servers; and recording a block including the first transaction data in a distributed ledger. The first smart contract includes (i) content of the first contract which is a main contract, (ii) a variable that is provisional and used for identifying a second smart contract corresponding to a second contract which is to be newly concluded as a sub contract of the first contract, and (iii) a condition for creation of the second smart contract.
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公开(公告)号：US20220012649A1
公开(公告)日：2022-01-13
申请号：US17482986
申请日：2021-09-23
Inventor： Yuji UNAGAMI , Junji MICHIYAMA , Junichiro SOEDA , Yuuki HIROSE , Tetsuji FUCHIKAMI , Motoji OHMORI
Abstract: A control method includes obtaining, from a first terminal of a first user, reservation information including a use start date and time of an electric-powered vehicle that the first user hopes to use at a future time and that is being used by a second user; obtaining an amount of remaining battery of the electric-powered vehicle; calculating charge start date and time based on the amount of remaining battery obtained, the charge start date and time being a date and time at which the electric-powered vehicle should start being charged so that an amount of remaining battery of the electric-powered vehicle becomes no less than a predetermined value at the use start date and time included in the reservation information obtained; and transmitting notification information including the charge start date and time calculated to the electric-powered vehicle.
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Patent Agency Ranking
公开(公告)号：US20210374129A1
公开(公告)日：2021-12-02
申请号：US17401639
申请日：2021-08-13
Inventor： Yuji UNAGAMI , Natsume MATSUZAKI
IPC: G06F16/248 , H04L12/28 , G06F16/21 , H04W12/02 , H04L29/06
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：US20210188201A1
公开(公告)日：2021-06-24
申请号：US17194701
申请日：2021-03-08
Inventor： Tomoyuki HAGA , Toshihisa NAKANO , Jun ANZAI , Hideki MATSUSHIMA , Yoshihiro UJIIE , Yuji UNAGAMI
IPC: B60R16/023 , H04L9/32 , H04L12/40 , H04L12/46 , H04L12/66
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：US20210149917A1
公开(公告)日：2021-05-20
申请号：US17159484
申请日：2021-01-27
Inventor： Yuji UNAGAMI , Junichiro SOEDA
Abstract: A data management method performed by a first authentication server included in a plurality of authentication servers each having a distributed ledger in a data management system including a device and the plurality of authentication servers includes: obtaining first transaction data generated by the device and including device data obtained or generated by the device; and generating a block including the first transaction data and recording the generated block in the distributed ledger, when the device data included in the first transaction data is first data indicated in an information type list which is a data list indicating data that is subject to recording in the distributed ledger and related to a predetermined contract.
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公开(公告)号：US20210142371A1
公开(公告)日：2021-05-13
申请号：US17157163
申请日：2021-01-25
Inventor： Junji MICHIYAMA , Junichiro SOEDA , Yuji UNAGAMI , Yuuki HIROSE , Tetsuji FUCHIKAMI , Motoji OHMORI
Abstract: A control method of a fund management system including a plurality of servers that hold a distributed ledger, and executed by one of the plurality of servers, includes: receiving transaction data, the transaction data pertaining to payment processing for payment of a token from one or more applicants of crowdfunding to a management account, and storing the transaction data that is received in the distributed ledger held in each of the plurality of servers; determining, using a smart contract, whether or not a target condition of the crowdfunding is met; and outputting information indicating a result of the determining.
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20.发明申请公开(公告)号：US20200050774A1
公开(公告)日：2020-02-13
申请号：US16523333
申请日：2019-07-26
Inventor： Yuji UNAGAMI
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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