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    Control method, server, and data structure
    2.
    发明授权
    Control method, server, and data structure 有权

    公开(公告)号：US12056115B2

    公开(公告)日：2024-08-06

    申请号：US18377085

    申请日：2023-10-05

    Applicant: Panasonic Intellectual Property Corporation of America

    Inventor： Yuji Unagami ,  Junji Michiyama ,  Junichiro Soeda ,  Yuuki Hirose ,  Tetsuji Fuchikami ,  Motoji Ohmori

    IPC: G06F16/00 ,  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.

    Control method, server, and recording medium
    3.
    发明授权
    Control method, server, and recording medium 有权

    公开(公告)号：US12198131B2

    公开(公告)日：2025-01-14

    申请号：US17579927

    申请日：2022-01-20

    Applicant: Panasonic Intellectual Property Corporation of America

    Inventor： Yuji Unagami ,  Junji Michiyama ,  Junichiro Soeda ,  Naohisa Nishida ,  Yuuki Hirose ,  Tetsuji Fuchikami ,  Motoji Ohmori

    IPC: G06Q20/38

    Abstract: A control method is executed by a first server among a plurality of servers in a system including the plurality of servers and a generating device that generates record information about usage records for users belonging to one group when a service provided by a business operator is used on a group basis. The method includes: obtaining, from the generating device, first record information about a first usage record of a service by a first user belonging to the one group; determining whether the first record information obtained is permitted under a rule based on contract content, stored in the first server, of a contract entered into by the first user and the business operator; and forwarding first transaction data including a determination result to a plurality of second servers and storing a first block including the first transaction data in a distributed ledger managed by the first server.

    Preventing falsification in version management
    4.
    发明授权
    Preventing falsification in version management 有权

    公开(公告)号：US11327745B2

    公开(公告)日：2022-05-10

    申请号：US16441814

    申请日：2019-06-14

    Applicant: Panasonic Intellectual Property Corporation of America

    Inventor： Junji Michiyama ,  Junichiro Soeda ,  Yuji Unagami ,  Yuuki Hirose ,  Tetsuji Fuchikami ,  Motoji Ohmori

    IPC: G06F8/71 ,  H04L9/32

    Abstract: The present disclosure provides a management method for software versions which prevents falsification of information under management. In the management method, a first management apparatus among management apparatuses receives transaction data from an apparatus connected through a network to the first management apparatus, the transaction data including first information on a first version of software, second information on a second version of the software subjected to version upgrade from the first version by a software developer, identification information of the software developer, and an electronic signature. The first management apparatus validates legitimacy of the transaction data using the electronic signature included in the transaction data received. When the transaction data is legitimate, the management apparatuses store the transaction data in distributed ledgers.

    Control method, data structure, server, and recording medium
    7.
    发明授权
    Control method, data structure, server, and recording medium 有权

    公开(公告)号：US12229757B2

    公开(公告)日：2025-02-18

    申请号：US17385131

    申请日：2021-07-26

    Applicant: Panasonic Intellectual Property Corporation of America

    Inventor： Yuji Unagami ,  Junji Michiyama ,  Yuuki Hirose ,  Tetsuji Fuchikami ,  Motoji Ohmori

    IPC: G06Q20/38 ,  G06Q20/40 ,  H04L9/08 ,  H04L9/32 ,  H04L9/00

    Abstract: A control method includes: receiving first transaction data related to a sign-up for service and storing the first transaction data received into the distributed ledger included in each of the plurality of servers, the service offering, if a goal condition predetermined for the service is satisfied, a token to a participant that is a user who signs up for the service; storing, into the distributed ledger, second transaction data indicating that the user is offered the token predetermined for the service, if it is determined that the goal condition is satisfied; and storing, into the distributed ledger, third transaction data indicating that the user is offered a deposit that is a temporary token predetermined for the service, at a predetermined timing included in a period from the storing of the first transaction data into the distributed ledger until when determination of whether the goal condition is satisfied is performed.

    Control method, server, and recording medium
    10.
    发明授权
    Control method, server, and recording medium 有权

    公开(公告)号：US11973882B2

    公开(公告)日：2024-04-30

    申请号：US17582400

    申请日：2022-01-24

    Applicant: Panasonic Intellectual Property Corporation of America

    Inventor： Yuji Unagami ,  Junji Michiyama ,  Junichiro Soeda ,  Naohisa Nishida ,  Yuuki Hirose ,  Tetsuji Fuchikami ,  Motoji Ohmori

    IPC: G06F21/00 ,  G06Q20/38 ,  H04L9/32

    CPC classification number: H04L9/3247 ,  G06Q20/389

    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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