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公开(公告)号:US20220058643A1
公开(公告)日:2022-02-24
申请号:US17521018
申请日:2021-11-08
Inventor: Naohisa NISHIDA , Yuji UNAGAMI
Abstract: An information transaction method of the present disclosure includes an information providing phase of providing, by an information provider, information requested by an information user via a distributed ledger of authentication server devices. In the information providing phase, an information provider terminal acquires first transaction data including an information user ID, an information provider ID, and a second information index indicating an index of first information requested by the information user among information items indicated by the first information index published in the distributed ledger, the first transaction data being written in the distributed ledger. The information provider terminal generates first encrypted information by encrypting the first information designated by the second information index, generates second transaction data including the information provider ID, the information user ID, and the first encrypted information, and transmits the second transaction data to an authentication server device.
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公开(公告)号:US20220004543A1
公开(公告)日:2022-01-06
申请号:US17478289
申请日:2021-09-17
Inventor: Naohisa NISHIDA , Junichiro SOEDA , Yuji UNAGAMI , Junji MICHIYAMA
Abstract: A fault monitoring method is executed by a monitoring device in a fault monitoring system that includes a terminal used by a user, an appliance to be operated by the user, the monitoring device, and a plurality of authentication servers each including a distributed ledger, and includes: obtaining event information stored in the plurality of authentication servers and indicating an event generated in response to a request that includes a processing instruction for the user operating the appliance; obtaining state information indicating whether the appliance is faulty, from the appliance; generating first transaction data including the state information obtained and transmitting the first transaction data to the plurality of authentication servers; and transmitting the processing instruction included in the event information to the appliance, when the appliance is determined to be not faulty from the state information.
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公开(公告)号:US20210365936A1
公开(公告)日:2021-11-25
申请号:US17392687
申请日:2021-08-03
Inventor: Yuji UNAGAMI , Junji MICHIYAMA , Yuuki HIROSE , Tetsuji FUCHIKAMI , Motoji OHMORI
Abstract: A control method includes: receiving application information including a scheduled date and time of a transaction, from a terminal; calculating, with reference to a distributed ledger, a fee based on a transaction by a first user recorded in the distributed ledger before the scheduled date and time included in the application information; transmitting fee information including the fee, to the terminal; receiving first transaction data including a first token quantity for the transaction, transferring the first transaction data to a plurality of other servers different from a server from among a plurality of servers, and storing a first block including the first transaction data in the distributed ledger; and receiving second transaction data including a second token quantity for the fee, transferring the second transaction data to the plurality of other servers, and storing a second block including the second transaction data in the distributed ledger.
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公开(公告)号:US20210150058A1
公开(公告)日:2021-05-20
申请号:US17162464
申请日:2021-01-29
Inventor: Yuji UNAGAMI , Junji MICHIYAMA , Junichiro SOEDA , Yuuki HIROSE , Tetsuji FUCHIKAMI , Motoji OHMORI
IPC: G06F21/62
Abstract: A control method that, in an information management system including a plurality of servers each having a distributed ledger, is executed by a server from among the plurality of servers, includes: receiving first transaction data that includes identification information and permission or non-permission information, the identification information being associated with user information that is managed in the information management system and relates to a first user, the permission or non-permission information indicating whether provision of the user information to a second user is permitted; and storing the first transaction data received, in the distributed ledger in each of the plurality of servers.
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公开(公告)号:US20210149356A1
公开(公告)日:2021-05-20
申请号:US17159714
申请日:2021-01-27
Inventor: Yuji UNAGAMI , Junichiro SOEDA , Junji MICHIYAMA
IPC: G05B19/042
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 malfunction information indicating that one of the IoT devices is malfunctioning, and time information indicating a time when the IoT device has obtained the malfunction information; transferring the obtained first transaction data to second servers different from the first server; executing, together with the second servers, a first consensus algorithm for an agreement on an authenticity of the first transaction data; 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:US20210142418A1
公开(公告)日:2021-05-13
申请号:US17157121
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 and storing the transaction data that is received in the distributed ledger held in each of the plurality of servers, the transaction data pertaining to reservation processing for payment of a token from one or more applicants of crowdfunding to a solicitor; 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:US20210133343A1
公开(公告)日:2021-05-06
申请号:US17147941
申请日:2021-01-13
Inventor: Junichiro SOEDA , Junji MICHIYAMA , Yuji UNAGAMI , Motoji OHMORI , Yuuki HIROSE , Tetsuji FUCHIKAMI
Abstract: A control method that is used in a content management system including a plurality of servers, each holding a distributed ledger, and that is executed by one of the servers includes acquiring first transaction data from a providing device and storing the acquired first transaction data in the distributed ledger held by each server, the first transaction data including identification information for specifying content provided by the providing device and permission/prohibition information regarding whether to permit or prohibit the browsing of the content.
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公开(公告)号:US20190394111A1
公开(公告)日:2019-12-26
申请号:US16562712
申请日:2019-09-06
Inventor: Michiko SASAGAWA , Motoji OHMORI , Yuji UNAGAMI , Hideo UMETANI , Kazunori ISOGAI
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.
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公开(公告)号:US20190384594A1
公开(公告)日:2019-12-19
申请号:US16441814
申请日:2019-06-14
Inventor: Junji MICHIYAMA , Junichiro SOEDA , Yuji UNAGAMI , Yuuki HIROSE , Tetsuji FUCHIKAMI , Motoji OHMORI
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.
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公开(公告)号:US20190384593A1
公开(公告)日:2019-12-19
申请号:US16441744
申请日:2019-06-14
Inventor: Junji MICHIYAMA , Junichiro SOEDA , Yuji UNAGAMI , Yuuki HIROSE , Tetsuji FUCHIKAMI , Motoji OHMORI
IPC: G06F8/71
Abstract: The present disclosure provides a management method for software versions to improve transaction safety of software. In the management method, among management apparatuses, a first token management apparatus obtains request information indicating a requested version requested by a user, and first transaction data indicating that the user provides predetermined number of tokens to a software developer who has developed the requested version is stored in distributed ledgers through execution of a consensus algorithm by the management apparatuses.
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