Patents Assigned to Hitachi, Ltd.
  • Publication number: 20250110842
    Abstract: A computer system includes a primary site having a primary volume, and having an instance that performs data processing related to input/output data, and a secondary site having a secondary volume, and having an instance. Remote copy is set up between the primary and secondary volumes, and the instance of the primary site transfers data input to or outputted from the primary volume to the secondary site, while the instance of the secondary site stores the transferred data in the secondary volume. The computer system further includes a specifications changing section that changes specifications of the instance of the secondary site when a failover switching process of switching a performer of the data processing from the primary to secondary site is performed, or when a failback switching process of switching the performer of the data processing from the secondary to primary site after the failover switching process is performed.
    Type: Application
    Filed: March 6, 2024
    Publication date: April 3, 2025
    Applicant: Hitachi, Ltd.
    Inventors: Hiroto EBARA, Yoshinori OHIRA, Takahiro YAMAMOTO, Shintaro ITO, Sachie TAJIMA
  • Publication number: 20250110845
    Abstract: A task management system is configured to store a consumption resource amount transition prediction of a resource consumed by tasks, and effective resource amount information for managing an effective resource amount indicating a total resource amount that is providable from the resource.
    Type: Application
    Filed: March 8, 2024
    Publication date: April 3, 2025
    Applicant: Hitachi, Ltd.
    Inventor: Shusaku MIWA
  • Patent number: 12266252
    Abstract: A work detection determination system performs detection determination on a work with high accuracy.
    Type: Grant
    Filed: November 27, 2023
    Date of Patent: April 1, 2025
    Assignee: Hitachi, Ltd.
    Inventors: Tetsuya Ishimaru, Hiroyuki Yoshimoto, Yoshihiro Wakisaka, Nobuyuki Sugii
  • Publication number: 20250103626
    Abstract: An explanatory sentence generation unit of a vehicle image analysis device specifies a scene shown in an image received from a camera, reads, from a necessity table, recognition necessity information on an object in the image for each specified scene, recognizes, from the image, an object designated as requiring recognition based on the read recognition necessity information, generates an explanatory sentence for each object based on a recognition result thereof, generates a situation explanatory sentence of the image based on the specified scene and the explanatory sentence for each object, and stores the situation explanatory sentence of the image and the image in an explanatory sentence DB in association with each other.
    Type: Application
    Filed: August 6, 2024
    Publication date: March 27, 2025
    Applicant: Hitachi, Ltd.
    Inventors: Kentaro YOSHIMURA, Haruki OISHI, Shigeru OTA
  • Publication number: 20250103905
    Abstract: An abnormality detection system detects an abnormality in equipment using a machine learning model constructed by federated learning. The system comprises multiple computers that further include an initial model training unit configured to construct an initial training model based on input data, a device ID generation unit configured to generate a device ID for uniquely identifying each computer, a latent variable generation unit configured to generate a latent variable to be input to a model, a pseudo data generation unit configured to generate pseudo data for each of the plurality of computers, and a shared model training unit configured to construct a shared model which is a conditional generative model based on the pseudo data. These computers also include multiple abnormality detection devices configured to detect an abnormality in equipment by calculating an abnormality degree of the equipment based on the input data.
    Type: Application
    Filed: August 12, 2024
    Publication date: March 27, 2025
    Applicant: HITACHI, LTD.
    Inventor: Kota Dohi
  • Publication number: 20250103225
    Abstract: In a computer system including a plurality of storage nodes and a control node, in a case where a storage system is deployed to a new storage node, the control node templates configuration information of an existing storage node by using a template deployment service, the control node sets a plurality of initial setting nodes, and causes the plurality of initial setting nodes to perform in parallel initial setting of converting and storing data of the existing storage node by using the template in a plurality of disks to be connected to a new storage node, and the new storage node is connected to the disks in which the initial setting is performed, and imports configuration information of the existing storage so that the storage system is deployed.
    Type: Application
    Filed: March 7, 2024
    Publication date: March 27, 2025
    Applicant: HITACHI, LTD.
    Inventors: Makio MIZUNO, Takahiro YAMAMOTO, Yoshinori OHIRA, Norio SHIMOZONO, Takeru CHIBA
  • Patent number: 12260090
    Abstract: Systems and methods described herein can involve, responsive to a request of a volume requiring remote copy, checking an IO throughput setting of the volume; using network bandwidth based on the IO throughput setting of the volume; and for the use of the network bandwidth not exceeding total remote copy network resources allocated for existing volumes configured with remote copy and the volume requiring remote copy, establishing a remote copy relationship for the volume in response to the request.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: March 25, 2025
    Assignee: Hitachi, Ltd.
    Inventor: Tomohiro Kawaguchi
  • Publication number: 20250094046
    Abstract: A storage system includes a controller and one or more storage devices, and the controller can compress data in different compression units, and collectively compresses data of one or a plurality of consecutive addresses in each compression unit of the different compression units. The controller receives write data, determines whether read of data stored in the one or more storage devices is necessary for compression of the write data by a first compression unit, determines compression of the write data in the first compression unit when read is not necessary, and determines compression in the first compression unit or compression in a second compression unit smaller than the first compression unit based on a remaining endurance of rewriting of the one or more storage devices when read is necessary.
    Type: Application
    Filed: March 18, 2024
    Publication date: March 20, 2025
    Applicant: Hitachi, Ltd.
    Inventors: Masahiro TSURUYA, Takashi NAGAO, Tomohiro YOSHIHARA
  • Patent number: 12254478
    Abstract: A delivery date answering apparatus includes: an order quota calculation and disclosure unit for calculating surplus inventory of a product in a demand forecast channel, which is a sales channel where order quantities are forecasted, using the actual inventory and a sales plan of the demand forecast channel, and transfer the surplus inventory to an orderable quota for a non-demand forecast channel, which is a sales channel where order quantities are not forecasted, and set a predetermined disclosed quota for the orderable quota; and an actual order acquisition and delivery date answering unit for determining whether the quantity of an actual order acquired in the non-demand forecast channel is within a range of the disclosed quota. When the order is within the range, answer a date when the actual order is deliverable. When the order is not within the range, answer the order is undeliverable.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: March 18, 2025
    Assignee: HITACHI, LTD.
    Inventors: Kenji Oya, Tazu Nomoto, Takahiro Ogura
  • Patent number: 12251578
    Abstract: An object of the present invention is to increase sensitivity and position resolution of measurement of an arrival position of a charged particle beam irradiated during treatment. A beam monitoring system includes: a gamma ray detector that detects gamma rays generated by interaction between a charged particle beam and an irradiation target; a shield that is disposed between the gamma ray detector and an irradiation axis of the beam and has a plurality of slits; and a calculation unit that analyzes a detection result of the gamma ray detector and reconfigures a count distribution of the detected gamma rays into a distribution of the beam irradiation axis based on a geometric arrangement of the shield, the detector, and the irradiation axis of the beam. The calculation unit obtains the arrival position of the particle beam from the reconfigured distribution.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: March 18, 2025
    Assignee: HITACHI, LTD.
    Inventors: Kota Sasaki, Kouichi Okada, Yuichiro Ueno
  • Patent number: 12254428
    Abstract: A timetable creation apparatus 100 for correcting a target timetable being a train timetable to be used to control a group of trains by using a predicted passenger demand to thereby create a new target timetable, includes: an objective function generation unit 115 that generates an objective function for an operation headway between trains included in the group of trains by using the predicted passenger demand; a constraint condition generation unit 117 that derives constraint conditions which an arrival time and a departure time of each of the trains at each of stations should satisfy for operation of the group of trains; and a candidate timetable creation unit 119 that creates a candidate timetable as an update candidate for a target timetable by using an arrival time and a departure time of each of the trains at each of the stations derived by optimizing the objective function under the constraint conditions.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: March 18, 2025
    Assignee: Hitachi, Ltd.
    Inventors: Tsuyoshi Minakawa, Keiji Kimura, Michi Kariatsumari, Masahito Kokubo, Megumi Yamaguchi
  • Patent number: 12254654
    Abstract: The invention is to provide a microstructural image analysis device and a microstructural image analysis method capable of quantifying the relations in a plurality of regions included in a microstructural image. There is provided a microstructural image analysis device for analyzing a microstructural image. The microstructural image analysis device includes a region processing unit that extracts a first region and a second region from the microstructural image and expands the first region and the second region, an overlapping region extraction unit that extracts an overlapping region of both the first region and the second region each time the first region and the second region are expanded, and a persistence diagram generation unit that generates a persistence diagram based on a hole region generated and eliminated due to the overlapping region.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: March 18, 2025
    Assignee: HITACHI, LTD.
    Inventor: Takayuki Kanda
  • Publication number: 20250085886
    Abstract: A storage system includes a controller, and a plurality of storage drives. The storage drives make up one or more parity groups. The controller monitors occurrence of one or more given events of an internal process different from an I/O process on host data, the given events increasing a load of a first parity group, and in response to occurrence of the given event, determines a power value indicating power to be interchanged to the first parity group, from one or more types of resources different from the first parity group in the storage system.
    Type: Application
    Filed: March 15, 2024
    Publication date: March 13, 2025
    Applicant: Hitachi, Ltd.
    Inventor: Soki HIKASA
  • Publication number: 20250085704
    Abstract: Provided is a failure probability evaluation apparatus that can improve identification accuracy of a failure probability function of a component and improve evaluation accuracy of a failure probability of the component. A failure probability evaluation apparatus 100 includes a maintenance history database 11, an operation database 12, and a calculation apparatus 13. The calculation apparatus 13 calculates, using a damage model with operation data as a parameter, a progression of damage to a component after installation of a sensor, learns the progression of the damage to the component after the installation of the sensor and estimates a progression of damage to the component before the installation of the sensor, calculates accumulated damage based on the progression of the damage to the component, and identifies, using the accumulated damage, a failure probability function.
    Type: Application
    Filed: May 8, 2024
    Publication date: March 13, 2025
    Applicant: Hitachi, Ltd.
    Inventor: Hiroshi SHINTANI
  • Publication number: 20250086543
    Abstract: Provided is an information processing device that supports formation of agreement by multiple participants. The device includes a memory stores a causal loop diagram database where participant attributes and corresponding causal loop diagrams are accumulated. These causal loop diagrams visualize causal relations between evaluation indicators and causal relation strength. The device also includes a processor that classifies the participants into multiple classes based on input information relating to attributes of the participants and generates class attributes of the classes. The processor refers to the causal loop diagram database based on the class attributes of the classes and creates a class causal loop diagram. The processor extracts a difference regarding the causal relations and the causal relation strength between the class causal loop diagrams and generates difference information.
    Type: Application
    Filed: September 9, 2024
    Publication date: March 13, 2025
    Applicant: HITACHI, LTD.
    Inventors: Mitsuharu Tai, Alessia Masola, Naoki Yoshimoto
  • Patent number: 12249828
    Abstract: Provided is a power conversion device that can be realized with a small circuit and is capable of stably converting AC power inputted from a three-phase power source system into DC power. In a power conversion device: an output terminal of a common converter cell in a J-numbered stage is connected, together with output terminals of common converter cells of the other two phases, to common lines; an output terminal of an independent converter cell in a K-numbered stage is connected to independent lines independently of converter cells of the other two phases; and a plurality of switches comprise a common switch for switching the connection relationship between the common lines and DC buses, and an independent switch for switching the connection relationship between the independent lines and DC buses.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: March 11, 2025
    Assignee: Hitachi, Ltd.
    Inventors: Akira Kikuchi, Akihiko Kanouda
  • Patent number: 12248391
    Abstract: A defect analysis apparatus includes an execution log (program execution log) of a program (source code) in an input. The defect analysis apparatus includes an analysis start point acquisition unit configured to acquire, from the execution log and as an analysis start point, a statement of the program in which an exception occurs; an analysis end point acquisition unit configured to acquire, as an analysis end point, a function directly or indirectly calling a function including the analysis start point; and a symbolic execution engine configured to perform reverse symbolic execution from the analysis start point to the analysis end point and output an execution path.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: March 11, 2025
    Assignee: Hitachi, Ltd.
    Inventors: Masumi Kawakami, Yasufumi Suzuki
  • Patent number: 12248769
    Abstract: A program analyzing apparatus (failure analyzing apparatus) includes an execution path reduction unit that deletes an execution path that is not executed by referring to information related to a branch destination of a conditional branch included in a program, from all execution paths that are all executable execution paths among execution paths that are columns of statements to be sequentially executed in the program.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: March 11, 2025
    Assignee: HITACHI, LTD.
    Inventors: Hiroto Kaga, Masumi Kawakami, Yasufumi Suzuki
  • Publication number: 20250078166
    Abstract: An insurance claim payment reviewing system includes a determination unit that receives a claim on an insurance benefit from insurance with respect to an incident, and approves the claim when a predicted probability of occurrence of the incident is lower than or equal to a predetermined value. Referring to a record of maintenance work performed on an object covered by the insurance, the determination unit may reject the claim when predetermined maintenance work has not been performed on the object covered by the insurance. The insurance claim payment reviewing system may further include a detection unit that detects the occurrence of the incident with reference to the record of maintenance work performed on the object covered by the insurance.
    Type: Application
    Filed: September 29, 2022
    Publication date: March 6, 2025
    Applicant: HITACHI, LTD.
    Inventors: Sonoko Kimura, Tomonori Yamamoto, Norihiko Moriwaki, Hikaru Koyama
  • Publication number: 20250077360
    Abstract: When the latest data and a backup of the latest data are infected, the data is recovered from the backup older than the data. Therefore, it is necessary to eliminate a difference from the latest data, leading to loss of business opportunities. A data recovery system that recovers data stored in a storage system includes a storage device that holds original data, an analyzing server that holds a copy of the original data, and generates formatted data by formatting the copy data for analysis, a managing server that holds the copy data and data history management information storing a history of the formatted data, and a data recovery unit that refers to the data history management information, selects the copy data or the formatted data as recovery data, and recovers the data from the selected recovery data when a security threat is detected in the data.
    Type: Application
    Filed: March 11, 2024
    Publication date: March 6, 2025
    Applicant: Hitachi, Ltd.
    Inventors: Mitsuo HAYASAKA, Yuto KAMO, Akira YAMAMOTO