公开(公告)号：US12132743B2

公开(公告)日：2024-10-29

申请号：US17783494

申请日：2020-11-19

Applicant: Hitachi, Ltd.

Inventor： Yusuke Jin ,  Nishio Yamada

IPC: H04L29/06 ,  H04L9/40 ,  H04L67/12

CPC classification number: H04L63/123 ,  H04L67/12

Abstract: A trail recording system includes a trail recording apparatus and a report receiving apparatus, the trail recording apparatus: holds a plurality of measurement values measured by a sensor, and trail data generated based on at least some of the plurality of measurement values; and transmits the trail data to the report receiving apparatus, the report receiving apparatus transmit, to the trail recording apparatus, a request indicating the trail data of the sensor that is an audit target, the trail recording apparatus transmits, to the report receiving apparatus, out of the plurality of measurement values, measurement values that have been used to generate the indicated trail data, the report receiving apparatus verifies, based on the trail data and the measurement values received from the trail recording apparatus, whether the at least some of the plurality of measurement values measured by the sensor are tampered is verified.

公开(公告)号：US11334838B2

公开(公告)日：2022-05-17

申请号：US17051192

申请日：2019-04-25

Applicant: HITACHI, LTD.

Inventor： Yuri Okada ,  Yusuke Jin ,  Nishio Yamada

IPC: G06Q10/06

Abstract: Disclosed is a business model generation support method for proposing a new business model. A computer receives a first business model and a second business model, and adds, for the plurality of business models, a first activity and a second activity which are respectively performed by the first and second business models to first information that predefines jobs performed by the business models as activities. Next, the computer adds the relation between a first data item and the first activity and the relation between a second data item and the second activity to second information that predefines the relation between the activities and the data items used for performing the activities. The first and second data items are used for performing the first and second activities, respectively. Then, the computer searches the second information to obtain a third activity including both the first data item and the second data item.

公开(公告)号：US11514443B2

公开(公告)日：2022-11-29

申请号：US16632935

申请日：2018-07-09

Applicant: HITACHI, LTD.

Inventor： Tatsuya Sato ,  Takayuki Nagai ,  Jun Nemoto ,  Nishio Yamada

IPC: G06Q20/38 ,  G06F16/27 ,  G06F16/23

Abstract: Operation management with consistent policies and timings between nodes even in a situation where there are a plurality of administrators in the distributed ledger system is realized. In an operation management system 10 for a distributed ledger system 6 comprising a plurality of nodes, each of at least two or more predetermined nodes in the plurality of nodes manages an operation smart contract 372 for operation management of the distributed ledger system with a distributed ledger 37, when at least one node in the two or more predetermined nodes receives a transaction, the node which has received the transaction judges whether or not a type of the transaction is the operation smart contract 372, and, based on the judgment result, executes the operation smart contract 372.