Patents Assigned to Hitachi, Ltd.
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Publication number: 20250094046Abstract: 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: ApplicationFiled: March 18, 2024Publication date: March 20, 2025Applicant: Hitachi, Ltd.Inventors: Masahiro TSURUYA, Takashi NAGAO, Tomohiro YOSHIHARA
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Patent number: 12254428Abstract: 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: GrantFiled: February 21, 2020Date of Patent: March 18, 2025Assignee: Hitachi, Ltd.Inventors: Tsuyoshi Minakawa, Keiji Kimura, Michi Kariatsumari, Masahito Kokubo, Megumi Yamaguchi
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Patent number: 12254478Abstract: 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: GrantFiled: February 14, 2022Date of Patent: March 18, 2025Assignee: HITACHI, LTD.Inventors: Kenji Oya, Tazu Nomoto, Takahiro Ogura
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Patent number: 12254654Abstract: 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: GrantFiled: January 13, 2022Date of Patent: March 18, 2025Assignee: HITACHI, LTD.Inventor: Takayuki Kanda
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Patent number: 12251578Abstract: 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: GrantFiled: August 25, 2020Date of Patent: March 18, 2025Assignee: HITACHI, LTD.Inventors: Kota Sasaki, Kouichi Okada, Yuichiro Ueno
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Publication number: 20250085886Abstract: 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: ApplicationFiled: March 15, 2024Publication date: March 13, 2025Applicant: Hitachi, Ltd.Inventor: Soki HIKASA
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Publication number: 20250085704Abstract: 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: ApplicationFiled: May 8, 2024Publication date: March 13, 2025Applicant: Hitachi, Ltd.Inventor: Hiroshi SHINTANI
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Publication number: 20250086543Abstract: 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: ApplicationFiled: September 9, 2024Publication date: March 13, 2025Applicant: HITACHI, LTD.Inventors: Mitsuharu Tai, Alessia Masola, Naoki Yoshimoto
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Patent number: 12248391Abstract: 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: GrantFiled: February 25, 2021Date of Patent: March 11, 2025Assignee: Hitachi, Ltd.Inventors: Masumi Kawakami, Yasufumi Suzuki
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Patent number: 12249828Abstract: 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: GrantFiled: May 7, 2021Date of Patent: March 11, 2025Assignee: Hitachi, Ltd.Inventors: Akira Kikuchi, Akihiko Kanouda
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Patent number: 12248769Abstract: 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: GrantFiled: February 15, 2022Date of Patent: March 11, 2025Assignee: HITACHI, LTD.Inventors: Hiroto Kaga, Masumi Kawakami, Yasufumi Suzuki
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Publication number: 20250078166Abstract: 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: ApplicationFiled: September 29, 2022Publication date: March 6, 2025Applicant: HITACHI, LTD.Inventors: Sonoko Kimura, Tomonori Yamamoto, Norihiko Moriwaki, Hikaru Koyama
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Publication number: 20250077360Abstract: 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: ApplicationFiled: March 11, 2024Publication date: March 6, 2025Applicant: Hitachi, Ltd.Inventors: Mitsuo HAYASAKA, Yuto KAMO, Akira YAMAMOTO
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Patent number: 12244785Abstract: The state monitoring system includes: a 3D camera configured to acquire an image in a work area; and information processing apparatus connected to the 3D camera and including a processing unit and a storage unit. The processing unit calculates a camera setting parameter that determines an imaging condition of the 3D camera with respect to a monitoring target as a target to be monitored in the work area and stores the camera setting parameter in the storage unit, determines the imaging condition of the 3D camera by applying the camera setting parameter corresponding to the monitoring target with reference to the camera setting parameter stored in the storage unit, acquires an image of the monitoring target from the 3D camera configured to image the monitoring target in the determined imaging condition, and determines a state of the monitoring target based on the acquired image of the monitoring target.Type: GrantFiled: July 5, 2023Date of Patent: March 4, 2025Assignee: Hitachi, Ltd.Inventors: Yasutaka Serizawa, Hisanori Matsumoto, Goichi Ono
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Patent number: 12242862Abstract: A data processing unit required for the data processing is started and a data processing unit not required for the data processing is stopped to change a part of the data processing settings or to add a new data processing setting without stopping the multi-stage data processing, and when the multi-stage data processing is executed, a rear-stage data processing unit reads the tag assigned in a front-stage data processing unit to discriminate the data processing unit that executes the data processing.Type: GrantFiled: March 6, 2023Date of Patent: March 4, 2025Assignee: HITACHI, LTD.Inventors: Takuya Habara, Shinichiro Saito, Daisuke Ito
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Patent number: 12240489Abstract: An information management system includes: a first storage unit configured to store road information in which first information acquired by a first sensor and indicating that there is no stationary object on a road and second information acquired by a second sensor and indicating that there is a stationary object on the road are associated with each other; a second storage unit configured to store, for each of types of moving objects configured to move on the road, passage possibility information related to possibility of passage on the road; and a determination unit configured to determine, for each of the types, whether the road is usable for passage based on the road information and the passage possibility information.Type: GrantFiled: February 12, 2021Date of Patent: March 4, 2025Assignee: HITACHI, LTD.Inventors: Akihiro Kondo, Takashi Matsumoto
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Patent number: 12241826Abstract: An arithmetic expression used for estimating a target item of a specimen is more easily incorporated into an optical measurement system. An optical measurement instrument includes an optical analysis unit configured to perform an optical analysis on a specimen and measure an intensity of light as a result of the optical analysis, and an arithmetic processing unit configured to download an arithmetic expression from a server device via a network, and perform a quantitative analysis on a target substance contained in the specimen by substituting the result of the optical analysis by the optical analysis unit into the arithmetic expression.Type: GrantFiled: March 19, 2020Date of Patent: March 4, 2025Assignee: Hitachi, Ltd.Inventors: Takuya Kambayashi, Toshimitsu Noguchi, Shunsuke Kono, Akihiro Nojima
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Publication number: 20250068602Abstract: A computer system connects with a base that provides a service including a plurality of components, retains component management information for managing schemas associated with the components included in the service, at the time of reception of a retrieval request for retrieving the components to achieve a service using a target component, retrieves associated components having the same schema as the target component with reference to the component management information, while designating the schema of the target component as a starting point, and presents the associated components.Type: ApplicationFiled: July 23, 2024Publication date: February 27, 2025Applicant: Hitachi, Ltd.Inventor: Yuya ISODA
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Publication number: 20250070867Abstract: To efficiently detect a defect and identify a causal portion of the defect while minimizing impact on performance of a storage system. A storage device, including an optical module, receives a data I/O request transmitted from another device via the optical module, and performs I/O processing responding to the data I/O request to a storage unit. The storage device performs, upon receiving a data write request as the data I/O request from another device, transmitting a reception enabled notification being information indicating a state where reception of write data for the data write request is enabled to another device, and starting timing of a write monitoring timer being a timer to monitor a reception state of the write data, and upon timeout of the write monitoring timer, acquiring emitted light quantity of a light emitting element, and outputting information indicating the acquired emitted light quantity.Type: ApplicationFiled: March 11, 2024Publication date: February 27, 2025Applicant: Hitachi, Ltd.Inventors: Tatsuhiko FUKAZAWA, Yuta Saito, Masateru Hemmi
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Patent number: 12234534Abstract: Provided are: a sintered magnet having an improved maximum energy product while maintaining the magnetic coercivity of the magnet; and a production method for such a sintered magnet. The sintered magnet (10a) according to the present invention comprises particles (6) each including: a main phase (2) in which the main component is a compound containing a rare-earth element and iron; and a diffusion layer (1) provided on the surface of the main phase (2). The diffusion layers (1) are characterized by: containing, as a main component, a compound resulting from a solid-solution of carbon and/or nitrogen in said compound of the main phase (2); and having a concentration gradient of carbon and/or nitrogen from the surfaces of the particles (6) toward the interior thereof.Type: GrantFiled: March 8, 2019Date of Patent: February 25, 2025Assignee: Hitachi, Ltd.Inventors: Matahiro Komuro, Yuichi Satsu