Patents Assigned to Hitachi, Ltd.
  • Publication number: 20240137284
    Abstract: An infrastructure design system includes an infrastructure design apparatus configured to generate infrastructure design information including information regarding a server infrastructure in which an application of a solution service is installed and a wireless communication infrastructure that connects the server infrastructure with a place where the solution service is used. The infrastructure design apparatus manages provision cost information regarding each of the wireless communication infrastructure and the server infrastructure, calculates estimated latency at a time of providing the solution service, on the basis of a communication delay between a solution service usage environment and the server infrastructure and a processing delay of the application, selects a combination of the wireless communication infrastructure and the server infrastructure on the basis of the estimated latency and a provision cost, and outputs the combination as infrastructure design information.
    Type: Application
    Filed: October 17, 2023
    Publication date: April 25, 2024
    Applicant: Hitachi, Ltd.
    Inventors: Daisuke MASHIMO, Masayuki TAKASE
  • Patent number: 11966716
    Abstract: An information processing apparatus includes an annealing control unit, a spin interaction memory, a random number generation unit, and a spin state update unit and obtains a solution by using an Ising model. The annealing control unit controls an annealing step and a parameter of a temperature and a parameter of a self-action. The spin interaction memory stores the interaction coefficient of a spin. The random number generation unit generates a predetermined random number. The spin state update unit includes a spin buffer that stores values of a plurality of spins, an instantaneous magnetic field calculation unit that calculates instantaneous magnetic fields of the plurality of spins, a probability calculation unit that calculates update probabilities of the plurality of spins, and a spin state determination unit that updates the values of the spins based on the update probabilities and a random number.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: April 23, 2024
    Assignees: HITACHI, LTD, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Normann Mertig, Takashi Takemoto, Shinya Takamaeda, Kasho Yamamoto, Masato Motomura, Akira Sakai, Hiroshi Teramoto
  • Patent number: 11967624
    Abstract: Abnormal generation of heat of a power MOSFET is detected to improve the reliability of a semiconductor device. As its means, in a power MOSFET having a drain electrode on the side of a back surface of a semiconductor substrate and a source pad on the side of a main surface of the semiconductor substrate, two gate pads electrically connected to a gate pad connected to a gate electrode of the power MOSFET are formed on the side of the main surface of the semiconductor substrate. Further, there is provided a voltmeter connected in parallel with each of two current paths which connect the two gate pads and a gate driver.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: April 23, 2024
    Assignee: HITACHI, LTD.
    Inventors: Naoki Tega, Digh Hisamoto, Takeru Suto
  • Publication number: 20240127481
    Abstract: A sensor position calibration device includes a moving object information acquisition unit that acquires a self-position measured by a reference moving object moving in a movement area; a moving object measurement unit that measures a position of the reference moving object based on observation information of a camera; a calibration unit that calibrates position information of the camera by using the self-position of the moving object and an estimated position calculated based on the measured position and the position information of the camera; a calibration error calculation unit that calculates an error between a second estimated position and the self-position; a reliability map generation unit that, based on the error, generates a reliability map indicating reliability of position measurement in the movement area using the camera; and a moving object control unit that controls movement of the moving object by using the reliability map.
    Type: Application
    Filed: October 4, 2023
    Publication date: April 18, 2024
    Applicant: HITACHI, LTD.
    Inventors: So SASATANI, Tsuyoshi KITAMURA, Takuma OSATO, Haruki MATONO
  • Publication number: 20240125521
    Abstract: A rotating magnetic field generation device of the present invention includes: a magnetic field generating unit including disks in which a plurality of magnets are arranged circumferentially, a magnetic field working space formed by stacking the disks at intervals to make the plurality of magnets face each other, and a shaft to which the stacked disks are fixed, the shaft being installed at a central axis of the disks; an adiabatic vacuum vessel in which the magnetic field generating unit is installed; and a drive mechanism that is installed in a room temperature region and rotates the shaft.
    Type: Application
    Filed: December 28, 2021
    Publication date: April 18, 2024
    Applicant: Hitachi, Ltd.
    Inventor: Tsuyoshi WAKUDA
  • Publication number: 20240126946
    Abstract: To provide a design supporting device and a design supporting method capable of presenting a specific improvement plan for solving evaluation indexes having a trade-off relationship. The design supporting device comprises: an input unit which inputs a plurality of evaluation indexes and attribute information; a retrieval unit which acquires information on cases for improvement cases using the input information; a priority order calculation unit which prioritizes the cases; and an output unit which prioritizes cases for improvement plans of evaluation indexes being in a trade-off relationship and presents the same to the outside.
    Type: Application
    Filed: September 6, 2023
    Publication date: April 18, 2024
    Applicant: Hitachi, Ltd.
    Inventors: Yuki ITABAYASHI, Yuuki SHIMIZU
  • Publication number: 20240126747
    Abstract: A data store comprises a commit management map including an identifier of a distributed transaction. A control method executed by an adapter coupled to the data store includes: alternate processing of, temporarily storing the reception query, and causing a transaction on the data store side to execute the reception query; perpetuation processing of determining whether or not commit is possible using lock information and perpetuating the GXID to be committed and the temporarily stored reception query in a case where commit is possible; settlement processing of causing the transaction on the data store side to execute a GXID addition query that is a query that adds the GXID to be committed to the commit management map and committing the transaction on the data store side; and store restart processing of the adapter starting a new transaction at the data store for a distributed transaction in an in-doubt state.
    Type: Application
    Filed: September 12, 2023
    Publication date: April 18, 2024
    Applicant: Hitachi, Ltd.
    Inventors: Toshiyuki HASEGAWA, Nobuyuki YAMAMOTO
  • Publication number: 20240126932
    Abstract: A design support device for performing a check of a defect suppresses defects such as rework in product design and manufacturing and appropriately proposing a criterion, which is an item to be checked in accordance with the actual situation. The design support device includes a memory that stores past subject information for a product designed in the past, thereby storing a correspondence table in which criteria indicating check items are associated, an input unit that receives input of new subject information of a product of a new subject to be checked, a priority calculation unit that calculates a priority of the criterion indicating the check item for the product of the new subject corresponding to the input new subject information, using the correspondence table, and an output unit that outputs the calculated criterion on the screen according to the priority.
    Type: Application
    Filed: February 2, 2022
    Publication date: April 18, 2024
    Applicant: Hitachi, Ltd.
    Inventor: Ichiro KATAOKA
  • Patent number: 11960771
    Abstract: A first controller manages first mapping information for accessing data stored in a storage area, management of which is assigned to the first controller, and second mapping information for accessing data stored in a predetermined storage area, management of which is assigned to a second controller. The second controller, when having executed garbage collection on the predetermined storage area, changes mapping information to post-migration mapping information for accessing data after being migrated by the garbage collection.
    Type: Grant
    Filed: September 1, 2022
    Date of Patent: April 16, 2024
    Assignee: HITACHI, LTD.
    Inventors: Shugo Ogawa, Ryosuke Tatsumi, Yoshinori Ohira, Hiroto Ebara, Junji Ogawa
  • Patent number: 11958513
    Abstract: A railroad car condition monitoring/analyzing includes: a car factor estimation unit configured to estimate car factor evaluation data from car data and evaluation data; an infrastructure factor extraction unit configured to extract infrastructure factor evaluation data from the car data, the evaluation data, and the car factor evaluation data; an infrastructure factor estimation unit configured to estimate individual infrastructure factor evaluation data from the infrastructure factor evaluation data; an infrastructure factor DB construction unit configured to store the individual infrastructure factor evaluation data in an infrastructure factor database; an infrastructure factor analysis unit configured to monitor the individual infrastructure factor evaluation data stored in the infrastructure factor database so as to analyze infrastructure factors; and a car analysis unit configured to analyze a car condition in consideration of analysis information on the infrastructure factor.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: April 16, 2024
    Assignee: HITACHI, LTD.
    Inventors: Takashi Yamaguchi, Ryo Furutani, Kenta Konishi
  • Patent number: 11962215
    Abstract: A linear motor achieves both a decrease in pulsation and an increase in propulsion with a 6n teeth structure provided with: a first mover for holding permanent magnets arranged longitudinally; a first stator having 6n teeth that are arranged so as to oppose the first mover and 6n windings that are wound on the respective teeth; a second mover holding permanent magnets longitudinally; a second stator having 6n teeth that are arranged in the longitudinal direction so as to oppose the second mover and 6n windings that are wound on the respective teeth The permanent magnets opposing each other in the first mover and the second mover are disposed with a phase difference of ?/2 in the moving direction of the two movers, and electrical currents with a phase difference of (1+6m)?/3 or (2+6m)?/3 are supplied to the windings opposing each other in the first stator and the second stator.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: April 16, 2024
    Assignees: HITACHI, LTD., THE UNIVERSITY OF TOKYO
    Inventors: Yasuaki Aoyama, Junnosuke Nakatsugawa, Kunihiko Noriduki, Takafumi Koseki, Salman Ahmed, Yuto Mitsui
  • Patent number: 11960928
    Abstract: An event monitoring system includes a processor and a storage unit. The storage unit holds an event message including a character string related to an event occurring in an information system and guide information including one or more guides. The guide includes a guide message including a predetermined character string, notified in response to the event, and information regarding a coping method for the event. The processor compares the event message and the guide, associates the guide with the event in a case where the guide further includes information for identifying a variable portion of the guide message and a portion other than the variable portion of the guide message coincides with a portion other than a portion corresponding to the variable portion in the event message, and receives an input of information indicating a correct answer of a guide to be associated with the event in a case where the guide does not include the information for identifying the variable portion.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: April 16, 2024
    Assignee: Hitachi, Ltd.
    Inventors: Taku Okamura, Takashi Tameshige, Mitsuhiro Nagata, Hideto Kurose, Mineyoshi Masuda
  • Patent number: 11960862
    Abstract: A source code correction assistance apparatus is configured to include a storage device that stores an updated source code, and an arithmetic operational device that generates, as an evaluation code template of the updated source code, a template including a conditional branch sentence related to each case of success or failure of an input condition, notifies an evaluator terminal of a request to create an evaluation code based on the template, controls an access to the updated source code by the evaluator, receives editing by the evaluator on the conditional branch sentence in the template, generates a list of input values for executing all control paths of the evaluation code after the editing, and generates an evaluation code driver that automatically executes the evaluation code by inputting the input value.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: April 16, 2024
    Assignee: Hitachi, Ltd.
    Inventors: Naoto Sato, Huyen Thi Thanh Phan
  • Patent number: 11960939
    Abstract: A management computer manages a data processing infrastructure including a server that executes a job and a storage device that is coupled to the server via a network and stores data used for processing in accordance with the job. The management computer includes a disc and a CPU. The disc stores maximum resource amount information, path information, and load information. The CPU computes a free resource amount of components forming a path to data related to execution of a predetermined job, based on the maximum resource amount information, the path information, and the load information and determines a parallelizable number in a parallel executable processing unit when the predetermined job is executing in the server, based on the free resource amount.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: April 16, 2024
    Assignee: HITACHI, LTD.
    Inventors: Kaori Nakano, Shinichi Hayashi, Satoshi Kaneko
  • Publication number: 20240116177
    Abstract: A control device according to an aspect of the present invention comprises: a progress information output unit that determines the progress of work on the basis of sensor data, obtained from at least one among a work device and the work environment of the work device, and sensor data during normal progress of the work device, and outputs progress information indicating the progress of work; a management unit that generates an operation command of the work device on the basis of the progress information, and outputs the operation command; and a control unit that generates a driving signal for driving the work device on the basis of the operation command and the sensor data, and outputs said driving signal to the work device.
    Type: Application
    Filed: October 29, 2021
    Publication date: April 11, 2024
    Applicant: Hitachi, Ltd.
    Inventor: Masaki ODAI
  • Publication number: 20240119827
    Abstract: A control system comprises: moving body detecting units transmitting information about moving bodies; and a control system receives the moving body information and transmits it to a control processing unit. The control system comprises: a surplus time calculation unit that calculates a first surplus time on the basis of the response time and an estimated time required for communication control of the moving body; a processing management unit that determines an execution sequence for the control information; an application unit that calculates control information on the basis of the information about moving bodies and the execution sequence determined by the processing management unit; and a transmission control unit that calculates a second surplus time on the basis of the response time of the moving body and the actual time required for communication control, and transmits control information to the control processing unit according to the second surplus time.
    Type: Application
    Filed: March 1, 2022
    Publication date: April 11, 2024
    Applicant: Hitachi, Ltd.
    Inventor: Tasuku ISHIGOOKA
  • Patent number: 11954604
    Abstract: Provided is a maintenance operation assistance system comprising: a failure knowledge database wherein failure knowledge data is recorded; a failure knowledge coupling unit for reconstructing partial failure knowledge data into failure knowledge data; and an inspection procedure generation unit for presenting an inspection procedure using the reconstructed failure knowledge data. The failure knowledge coupling unit evaluates and adjusts the relatedness of nodes among different instances of partial failure knowledge data, and connects the different instances of partial failure knowledge data. On the basis of the reconstructed failure knowledge data, the inspection procedure generation unit sets priorities for when presenting the inspection procedure, and presents the inspection procedure to a diagnostic interface unit in accordance with the priorities.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: April 9, 2024
    Assignee: Hitachi, Ltd.
    Inventor: Toshiaki Kono
  • Patent number: 11954335
    Abstract: Reliability in a storage system can be easily and appropriately improved. In a computer system including a storage system configured to provide a plurality of instances in any one of a plurality of subzones divided by risk boundaries, a processor of the computer system is configured to make a storage controller that controls I/O processing for a volume based on a capacity pool provided by a plurality of storages redundant to the plurality of instances provided in the plurality of subzones.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: April 9, 2024
    Assignee: HITACHI, LTD.
    Inventors: Takaki Nakamura, Hideo Saito, Naruki Kurata, Takahiro Yamamoto
  • Patent number: 11954600
    Abstract: An image processing device including a storage unit configured to store an object detection neural network trained using a first K-channel image generated from a first M-channel image and a first N-channel image generated from the first M-channel image, a reception unit configured to receive, from a sensor, a second M-channel image and a second N-channel image that include an identical subject, and an image analysis unit configured to generate, using the object detection neural network trained using the first K-channel image, object detection result information with respect to a second K-channel image generated from the second M-channel image and the second N-channel image, and output the object detection result information.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: April 9, 2024
    Assignee: HITACHI, LTD.
    Inventors: Viviana Crescitelli, Takashi Oshima
  • Patent number: 11954001
    Abstract: A storage system includes: a power source; a drive box that stores a storage apparatus; a storing apparatus having a storage unit in which data regarding devices is stored; a PCIe switch that can switch between a plurality of communication paths, has a communication path connected at least to the storage apparatus, and can further perform I2C communication with the storing apparatus; an auxiliary apparatus that can perform I2C communication with the PCIe switch; and a MOS switch that controls power supply from the power source to the storing apparatus, wherein if timeout of the I2C communication between the PCIe switch and the storing apparatus occurs, the PCIe switch transmits a hard reset command to the auxiliary apparatus; and wherein when the auxiliary apparatus receives the hard reset command, the auxiliary apparatus stops the power supply to the storing apparatus by using the MOS switch and then performs power resupply.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: April 9, 2024
    Assignee: Hitachi, Ltd.
    Inventor: Issei Nakashima