Patents Assigned to Hitachi, Ltd.
  • Publication number: 20230367296
    Abstract: This industrial system is characterized by being provided with: a storage unit that stores design data used when constructing an industrial line; a simulation execution unit that executes a simulation of movement of the industrial line, based on the design data; and a detection unit that compares a result of the simulation with the movement of the industrial line during operation and detects an abnormality in components of the industrial line. With such a configuration and movement, the present invention can be utilized for line operation support and high-resolution abnormality detection.
    Type: Application
    Filed: November 2, 2020
    Publication date: November 16, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Nobuhiro KAKENO, Yoshiteru KATSUMURA, Daiki KAJITA, Takahiro NAKANO, Miho ARAI
  • Publication number: 20230368508
    Abstract: An area extraction method includes acquiring a captured image, generating a feature map using the captured image, extracting a candidate bounding box indicating an area in which an object exists in the captured image using the feature map, a segmentation step of generating a mask that is a bounding box indicating the area in which the object exists using the feature map and the candidate bounding box, acquiring input information which is input by a user regarding the object in the captured image, extracting the candidate bounding box using the feature map and the input information, and updating the feature map using the candidate bounding box extracted in the area estimation step and the input information. Wherein the candidate bounding box can be extracted further using the mask generated in the segmentation step, and the feature map can be updated using the mask generated in the segmentation step.
    Type: Application
    Filed: March 1, 2023
    Publication date: November 16, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Ziwei DENG, Naoto AKIRA, Tomoaki YOSHINAGA
  • Patent number: 11814614
    Abstract: A cell culture device includes a control unit that includes a first gas supply source, a second gas supply source, and a decompression source, and a culture unit that includes a first container, a second container, a first gas channel that connects a third container, the first gas supply source, the second container to a connection point, a second gas channel, a third gas channel, a first liquid channel, a second liquid channel, a gas-liquid channel, a first valve, a second valve, a third valve, a fourth valve, and a fifth valve.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: November 14, 2023
    Assignee: Hitachi, Ltd.
    Inventors: Masaharu Kiyama, Midori Kato
  • Patent number: 11816331
    Abstract: The invention is to efficiently exchange storage programs. A storage program in an active state and a storage program in a standby state in a storage program group each change metadata thereof when the storage program in the active state writes data. When update of the storage programs including arranging post-update storage programs in storage nodes and generating new-version metadata based on old-version metadata by the post-update storage programs is to be performed, the post-update storage program in the standby state generates the new-version metadata based on the old-version metadata is performed for the storage programs in the plurality of storage nodes while replacing the active state and the standby state of the storage programs with each other in the plurality of storage programs in the storage program group.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: November 14, 2023
    Assignee: Hitachi, Ltd.
    Inventors: Sachie Tajima, Shintaro Ito, Takahiro Yamamoto, Yoshinori Ohira
  • Patent number: 11816611
    Abstract: A work support apparatus, which assigns an operator to an operation performed in a workplace, includes a communication device used for the operation in the workplace, and holds information on a relationship between a process, an operation, and each of divided areas of the workplace and the communication device used for the operation, information on a predicted communication throughput by the communication device in each of the divided areas, and information on an operator-requested communication throughput for a combination of the operation and an operator. For each operation corresponding to the process, the apparatus determines assignment of an operator to the operation, referring to the predicted communication throughput by the communication device and the operator-requested communication throughput, and outputs a result of the operator assignment.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: November 14, 2023
    Assignee: Hitachi, Ltd.
    Inventors: Eriko Takeda, Hajime Kanzaki, Nobuyuki Muranaka, Daisuke Ishii
  • Patent number: 11816336
    Abstract: The present disclosure is to optimize processes in a storage system. A storage system includes: a first controller including a first computing device and a first memory; a second controller including a second computing device and a second memory; and an interface circuit that transfers data between the first controller and the second controller. The interface circuit reads first compressed data from the second memory. The interface circuit decompresses the first compressed data to generate first uncompressed data, and writes the first uncompressed data into the first memory.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: November 14, 2023
    Assignee: HITACHI, LTD.
    Inventors: Naoya Okada, Takashi Nagao, Kentaro Shimada, Ryosuke Tatsumi, Sadahiro Sugimoto
  • Patent number: 11816109
    Abstract: To promote data utilization by providing processed data while leaving a trail that is hardly falsified. A data management server 2000B receives an analysis request, executes an analysis program 2500B, and transfers the analysis request to a data processing server 3000, allowing second data resulting from processing first data to be saved in storage (8160). The data management server 2000B further receives the notification of having processed the first data from the data processing server (8190), generates a transaction indicating the first data having been processed according to the analysis request (8050), and adds the verified transaction as a record in a processing/usage trail management table 11000 as one of distributed shared ledgers (8070).
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: November 14, 2023
    Assignee: HITACHI, LTD.
    Inventors: Masaru Hisada, Hironori Emaru, Akihito Kaneko
  • Publication number: 20230359182
    Abstract: Provided is a work management apparatus that is capable of allowing actual work to be continued without stopping a system as a whole even in the case where work start and completion times are lost. The work management apparatus according to the present invention recognizes content of work of a worker on the basis of a recognition result of a motion of the worker and a recognition result of an operation status of an object used by the worker and identifies a start time and a completion time according to the content of the work, to thereby confirm whether or not there is any missing content of the work.
    Type: Application
    Filed: April 13, 2023
    Publication date: November 9, 2023
    Applicant: HITACHI, LTD.
    Inventors: Koji Yamasaki, Chiyo Ohno, Akinobu Watanabe
  • Publication number: 20230359717
    Abstract: Authentication is performed by confirming that the true operator presents his/her own biometric authentication information at a common portable information terminal. The biometric authentication system has an image capture unit that acquires first and second image data of different biometric areas of an operator during a predetermined period, a display that displays a guide to guide the operator to the location of the biometric area in order to capture different biometric areas of the operator, and a memory that stores biometric authentication information of the operator in advance. Furthermore, the first vital information and the second vital information are extracted from the image data of the different biometric areas, respectively, the identity of the operator is determined based on the first vital information and the second vital information, and if the identity of the operator is confirmed, the biometric authentication is performed.
    Type: Application
    Filed: August 25, 2021
    Publication date: November 9, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Keiichiro NAKAZAKI, Naoto MIURA, Yusuke MATSUDA, Akio NAGASAKA
  • Patent number: 11811741
    Abstract: A first terminal holds first encrypted data encrypted by using a first key by a first encryption scheme having deterministic and commutativity, a second terminal holds second encrypted data encrypted by using a second key by the first encryption scheme, the first terminal transmits the first encrypted data to the second terminal, the second terminal transmits the second encrypted data to the first terminal, the first terminal generates third encrypted data by encrypting the second encrypted data by using the first key by the first encryption scheme, the third encrypted data is transmitted to the second terminal, the second terminal decrypts the third encrypted data with the second key, and calculates a common part between the second encrypted data and the decrypted third encrypted data, and transmits the common part to the first terminal, and the first terminal decrypts the common part with the first key.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: November 7, 2023
    Assignee: Hitachi, Ltd.
    Inventors: Hisayoshi Sato, Masayuki Yoshino
  • Patent number: 11811409
    Abstract: In order to suppress frequency fluctuation caused by a load frequency, an AR calculating section calculates an AR using system frequency deviation and tie-line power flow deviation as inputs. An output distribution ratio determining section determines a ratio of output distribution according to merit order based on the AR calculated by the AR calculating section. An output distributing section determines output distribution according to an output change speed based on the output distribution ratio determined by the output distribution ratio determining section according to the output change speed. An output distributing section determines output distribution according to the merit order based on the output distribution ratio determined by the output distribution ratio determining section according to the merit order.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: November 7, 2023
    Assignee: HITACHI, LTD.
    Inventors: Yuki Tsujii, Shota Omi
  • Patent number: 11810387
    Abstract: Example implementations involve a location system, which can involve associating each location of one or more unidentified targets detected from sensor data of the one or more sensors with identifiers corresponding to the transmitter of each of the one or more pairs of electronic devices, by calculating first distance relationships indicative of relationships of distances between the each location of the one or more unidentified targets detected from the sensor data of the one or more sensors and a reference point; calculating second distance relationships indicative of relationships of distances between the transmitter and the receiver of each of the one or more pairs of electronic devices; and associating the identifiers corresponding to the transmitter of the each of the one or more pairs of electronic devices with the each location of the one or more unidentified targets based on the first distance relationships and the second distance relationships.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: November 7, 2023
    Assignee: HITACHI, LTD.
    Inventors: Daisuke Maeda, Sudhanshu Gaur
  • Patent number: 11809244
    Abstract: A controller and a rectangular parallelepiped power supply apparatus are coupled to a rear surface of a midplane, to which a plurality of storage media drives are coupled in a front surface of the midplane. A plurality of interface connectors arranged in a left-right direction are provided at a front end of a controller substrate. The rear surface of the midplane includes a plurality of connectors for controller, which are a plurality of connectors arranged in the left-right direction to which interface connectors of the controller are respectively coupled, and a connector for power supply, which are connectors to which a power supply apparatus set horizontally is coupled. A part of a row of the connectors for controller is present below the power supply apparatus coupled sideways to the connector for power supply.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: November 7, 2023
    Assignee: HITACHI, LTD.
    Inventor: Yuichi Saigan
  • Publication number: 20230350723
    Abstract: A control server checks whether a resource necessary for process execution is present in a computer system. The control server determines that generating a placement plan is possible when relative guarantee is possible, the relative guarantee guaranteeing a guarantee volume that is at least an absolute resource volume and, if possible, guaranteeing a resource volume reaching an upper limit volume, for a reservation acceptance limit, and starts generating the placement plan. In a period between right after the start of generation of the placement plan and right before permission to selection/approval of the proposed placement plan, the control server makes a reservation with relative guarantee that for the resource and the reservation acceptance limit, makes the guarantee volume and the upper limit volume for the resource volume of the resource different respectively from the guarantee volume and the upper limit volume for the reservation acceptance limit.
    Type: Application
    Filed: March 7, 2023
    Publication date: November 2, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Ken NOMURA, Akio Shimada, Mitsuo Hayasaka
  • Publication number: 20230351281
    Abstract: Provided is a technique that allows a user to easily determine what kind of future scenario AI is outputting. A preferred aspect of the invention provides an information processing device including: an agent configured to output a response based on a state observed from an environment with stochastic state transitions; an individual evaluation model configured to evaluate the response assuming that a part of the stochastic state transitions occurs; and a plan explanation processing unit configured to output information based on the evaluation in association with information based on the response.
    Type: Application
    Filed: February 22, 2023
    Publication date: November 2, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Yuta TSUCHIYA, Yasuhide MORI, Masashi EGI
  • Patent number: 11803443
    Abstract: A storage apparatus includes a plurality of drives and has a parity group constituted by a plurality of drives. The storage apparatus stores a hash management table to manage hash values of a prescribed data unit of data of the drives constituting the parity group and a hash value of a prescribed data unit of data stored in another drive other than the drives constituting the parity group. A processor is configured to determine whether a same data unit as a data unit included in data stored in a replacement target drive exists in the other drive on a basis of the hash values, and copy the same data unit of the other drive to a replacement destination drive when the same data unit exists.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: October 31, 2023
    Assignee: HITACHI, LTD.
    Inventor: Shota Fujita
  • Patent number: 11803990
    Abstract: Example implementations described herein provide systems and methods for visualization of power distribution feeder networks. The systems and methods involve setting a limit of objects of the power distribution network to be displayed on a map, the objects comprising at least nodes and links between the nodes, the links comprising at least conductive lines; when the total number of the objects exceeds a limit, selecting one or more subsets of the conductive lines based on one or more conditions related to the conductive lines; and generating a first visualization displaying the map comprising a subset of the objects including the one or more subsets of the conductive lines, wherein a number of displayed objects is less than or equal to the limit.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: October 31, 2023
    Assignee: HITACHI, LTD.
    Inventors: Panitarn Chongfuangprinya, Bo Yang, Yanzhu Ye, Masanori Abe, Anthony Hoang, Natsuhiko Futamura
  • Patent number: 11803930
    Abstract: The present invention makes it possible to supply transportation capacity suitable for movement demand in numerous circumstances.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: October 31, 2023
    Assignees: Hitachi, Ltd., Hitachi Rail STS S.p.A.
    Inventors: Tsuyoshi Minakawa, Keiji Kimura, Tatsuhiro Satou, Michi Kariatsumari, Claudio Giorgianni
  • Patent number: 11803655
    Abstract: A retrieval system includes a first management unit which stores, in a first storage area that cannot be browsed by an administrator of a provider machine, management information in which an encrypted retrieval keyword used for a retrieval performed by the provider machine, and an encrypted ID, which is associated with the encrypted retrieval keyword, are associated and, of the management information, decrypts, and then once again encrypts, the encrypted retrieval keyword corresponding to the encrypted query from a browsing machine and the encrypted ID corresponding to the encrypted retrieval keyword, and a second management unit which stores, in a second storage area, index information in which the encrypted retrieval keyword used for the retrieval performed by the provider machine, and one or more encrypted IDs associated with the encrypted retrieval keyword, are associated, and, of the index information, updates the encrypted retrieval keyword and the encrypted ID.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: October 31, 2023
    Assignee: HITACHI, LTD.
    Inventors: Masayuki Yoshino, Keisei Fujiwara
  • Patent number: 11796989
    Abstract: A monitoring system that monitors a monitoring-target system is disclosed. The monitoring system includes one or more storage apparatuses that store a program, and one or more processors that operate according to the program. The one or more processors determine an estimated value of a monitoring-target response variable of the monitoring-target system on a basis of measurement data included in test data of the monitoring-target system and a causal structure model of the monitoring-target system. The one or more processors decide whether an abnormality has occurred in the monitoring-target system on a basis of a result of a comparison between a measurement value of the monitoring-target response variable included in the test data, and the estimated value.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: October 24, 2023
    Assignee: Hitachi, Ltd.
    Inventors: Wei Wang, Kojin Yano, Tetsushi Suzuki, Kenichirou Okada