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公开(公告)号:US20240037093A1
公开(公告)日:2024-02-01
申请号:US18377085
申请日:2023-10-05
Inventor: Yuji UNAGAMI , Junji MICHIYAMA , Junichiro SOEDA , Yuuki HIROSE , Tetsuji FUCHIKAMI , Motoji OHMORI
IPC: G06F16/23
CPC classification number: G06F16/2379
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: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:US20220242274A1
公开(公告)日:2022-08-04
申请号:US17474460
申请日:2021-09-14
Inventor: Junichiro SOEDA , Kohsuke YOSHIOKA
Abstract: Provided is a control method which includes: obtaining battery information which is information regarding a battery; calculating a present residual value of the battery based on the battery information obtained; calculating a first residual value using a first model which has been trained, the first residual value being a residual value of the battery in a case where a user uses the battery with a tendency identical to a tendency of a plurality of other users; and issuing a token to the user according to an evaluation value calculated based on the present residual value and the first residual value calculated.
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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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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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公开(公告)号:US20200020187A1
公开(公告)日:2020-01-16
申请号:US16584340
申请日:2019-09-26
Inventor: Junichiro SOEDA
Abstract: Various devices, methods, and media are provided. According to one of the devices, an unlocking request for unlocking a lock is received. The lock is provided in a container and contains a physical object. Information of a first owner, that has a right of ownership of the physical object, is acquired from a first ledger when the unlocking request is received. The first ledger is one of a plurality of distributed ledgers which each have a same content. The device determines whether the first requester matches the first owner, and causes the lock to be unlocked when the first requester matches the first owner.
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公开(公告)号:US20240042894A1
公开(公告)日:2024-02-08
申请号:US18377517
申请日:2023-10-06
Inventor: Junichiro SOEDA , Kohsuke YOSHIOKA
CPC classification number: B60L58/16 , G06N20/00 , B60L50/60 , B60L58/12 , G06Q20/29 , G07C5/0825 , B60L2240/545 , B60Y2200/91
Abstract: Provided is a control method which includes: obtaining battery information which is information regarding a battery; calculating a present residual value of the battery based on the battery information obtained; calculating a first residual value using a first model which has been trained, the first residual value being a residual value of the battery in a case where a user uses the battery with a tendency identical to a tendency of a plurality of other users; and issuing a token to the user according to an evaluation value calculated based on the present residual value and the first residual value calculated.
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