Patents Assigned to Hitachi, Ltd.
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Publication number: 20250147789Abstract: The present disclosure enables appropriate collection and management of dependency relations regarding booting and/or shutdown of virtual elements and physical elements in a computer system. A dependency relation grasping system collecting and managing information in a computer system that has a plurality of servers and makes up a virtual machine by the plurality of servers, includes a processor. The processor is configured to acquire correlative relation information between a physical element and the virtual machine in the computer system, and identify dependency relations for booting and/or shutdown, between the virtual machine and the physical element, on the basis of the correlative relation information, and store, in a database, relationship information indicating the dependency relation.Type: ApplicationFiled: September 23, 2024Publication date: May 8, 2025Applicant: Hitachi, Ltd.Inventor: Yumiko OE
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Publication number: 20250149909Abstract: Provided is a charging system that can appropriately assign a power conversion unit to an apparatus to be charged. For this purpose, a unit assignment section is configured to, when a new apparatus to be charged is connected to any of charging ports, reduce the number of assigned units preferentially for one, from among apparatuses to be charged for which the number of assigned units is plural, that involves a smaller reduction in charging power when the number of assigned units is reduced, and to assign the power conversion section in a vacant state resulting from the reduction to the newly connected device to be charged.Type: ApplicationFiled: January 18, 2023Publication date: May 8, 2025Applicant: HITACHI, LTD.Inventors: Takae SHIMADA, Kimihisa FURUKAWA, Yuuichi MABUCHI, Hiroshi KAMIZUMA, Yuki KAWAGUCHI
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Publication number: 20250147773Abstract: An arithmetic apparatus includes a memory, a non-volatile storage medium that stores a non-real-time OS, a management object program that cannot be activated simultaneously with another management object program, a background program that executes the management object program, and a management program that manages the management object program, and a central processing unit that executes the OS, the management object program, the background program, and the management program. The background program generates one or more temporary processes by the OS, and stores the management object program in the memory, selects a selection process that is one of the temporary processes, and associates the selection process with the management object program stored in the memory, and the management program causes the management object program associated with the selection process to operate, without generating a new process, when the management program receives a command to start the management object program.Type: ApplicationFiled: March 30, 2022Publication date: May 8, 2025Applicant: Hitachi, Ltd.Inventors: Sungho KIM, Yusaku OTSUKA
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Publication number: 20250147883Abstract: One object of the disclosure is to reduce a capacity of cached data, reduce a transfer volume, or reduce a management cost. One aspect of the disclosure is a computer system including a storage control unit and a storage apparatus. The storage control unit receives a notification of information on an operation mode determined by an operation mode determination unit based on processing executed by a processing execution unit. When an access request is received via a virtual volume from the processing execution unit in a case where target data is not stored in a cache volume, the storage control unit executes an access to a real volume. The storage control unit controls the cache volume based on the information on the operation mode.Type: ApplicationFiled: March 1, 2024Publication date: May 8, 2025Applicant: Hitachi, Ltd.Inventors: Mutsumi HOSOYA, Norio SHIMOZONO
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Patent number: 12291355Abstract: The space structure control system includes: a space structure; an artificial satellite connected to the space structure; and a propulsion device installed on the artificial satellite and configured to control an orbit and an attitude of the artificial satellite, in which the space structure includes a film-like structure, a solar reflectance control device that controls a spatial pattern of a solar reflectance in a reflecting mirror provided in the film-like structure, and a shape retaining device that is connected to the film-like structure, the propulsion device rotates the film-like structure to generate a centrifugal force, the solar reflectance control device controls a solar reflectance in the reflecting mirror to control a solar radiation pressure to be applied to the reflecting mirror, a three-dimensional shape of the film-like structure is controlled based on the centrifugal force generated by the rotation of the film-like structure and the solar radiation pressure, and the shape of the film-like stType: GrantFiled: February 22, 2024Date of Patent: May 6, 2025Assignee: HITACHI, LTD.Inventors: Makoto Ito, Tsukasa Funane, Koichi Watanabe, Yosuke Tanabe, Hisatoshi Kimura
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Patent number: 12291199Abstract: A system includes a first device that controls a moving body and a second device that remotely controls the moving body. The first device obtains information around the moving body, movement information of the moving body, and remote control information. The first device calculates a control amount for controlling movement of the moving body based on one of the information and the movement information, switches autonomous movement and remote control of the moving body based on the remote-control information, and transmits one of the information, the movement information, and the control amount to the second device. The second device receives one of the information, the movement information, and the control amount, transmits the remote-control information to the first device, determines autonomous mobility of the moving body based on second information stored remotely, and generates the remote-control information including a determination result.Type: GrantFiled: October 20, 2017Date of Patent: May 6, 2025Assignee: Hitachi, Ltd.Inventors: Kenta Maeda, Junya Takahashi
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Publication number: 20250138943Abstract: In a storage device including a plurality of controllers for controlling data reading and writing operations with respect to at least one host computer, each of the controllers includes: a cache region to which a plurality of management units capable of temporarily storing the data are allocated in accordance with the data reading and writing operations; and a control unit for controlling the data reading and writing operations, and when an error occurs, the control unit determines whether or not an occurrence position of the error is in the cache region, and when it is determined that the occurrence position is in the cache region, the control unit excludes, among the plural management units, a specific management unit that contains the occurrence position from an allocation target in the cache region, to control the data reading and writing operations using remaining management units in the plural management units.Type: ApplicationFiled: March 19, 2024Publication date: May 1, 2025Applicant: HITACHI, LTD.Inventors: Masanori TAKADA, Katsuya TANAKA
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Patent number: 12289184Abstract: An estimation system generates, from a value of a time series of an estimation object in a past period, a plurality of patterns of a transition of a value of the estimation object. Based on the plurality of generated patterns and a value of a time series of a factor in the past period, the estimation system specifies a dependency relationship between a transition pattern and a value of the factor and a transition pattern at a past (or future) time point and identifies a model in accordance with the specified dependency relationship. By inputting a value of a time series of the factor in a future period to the estimation model, the estimation system specifies a time series of a value in the future period of the estimation object using at least one transition pattern.Type: GrantFiled: March 8, 2022Date of Patent: April 29, 2025Assignee: HITACHI, LTD.Inventors: Masato Utsumi, Tohru Watanabe, Kazuki Namba, Ikuo Shigemori, Hiroshi Iimura, Hiroaki Ogawa, Daisuke Hamaba, Jun Yamazaki
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Patent number: 12287480Abstract: The information display apparatus configured to display video information of a virtual image on a reflecting surface of conveyance includes: a display configured to display the video information; and a virtual image optical system configured to display a virtual image at a front of the conveyance by reflecting light emitted from the display by means of the reflecting surface. The virtual image optical system includes a concave mirror and an optical element. The optical element is arranged between the display and the concave mirror, and is configured to correct distortion of the virtual image obtained so as to correspond to a viewpoint position of a driver on a basis of a shape of the concave mirror and a shape of the optical element. The information display apparatus further includes a virtual image double image conversion reducer configured to reduce double image conversion of the virtual image.Type: GrantFiled: February 14, 2024Date of Patent: April 29, 2025Assignees: MAXELL, LTD., HITACHI INDUSTRY & CONTROL SOLUTIONS, LTD.Inventors: Koji Hirata, Masahiko Yatsu, Toshinori Sugiyama, Kazuomi Kaneko
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Patent number: 12288105Abstract: An environment construction system holds resource price information indicating a price of available resources in a second environment and communication distance information indicating a distance of a communication path between the second environment and a first environment when the available resources are used for the second environment, acquires system configuration information of an information system and environment arrangement information indicating a physical location where the first environment is disposed, analyzes the system configuration information to generate an analysis result indicating a configuration of the system, determines an environment arrangement policy indicating a requirement required for the second environment based on the analysis result, selects a resource to be used for the second environment based on the resource price information, the communication distance information, and the environment arrangement policy, converts the system configuration information to use the selected resourType: GrantFiled: September 22, 2022Date of Patent: April 29, 2025Assignee: HITACHI, LTD.Inventors: Toshio Nishida, Masaharu Ukeda
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Patent number: 12289063Abstract: A modular multilevel power converter includes: a capacitor voltage adjuster that calculates an active current component command to make an average voltage of capacitors match a command value; an active power detector that receives an AC current signal and an AC voltage signal and calculates an active power; an active power adjuster that calculates a DC current command value to make the active power match a command value; a first active power command suppressor that suppresses an absolute value of an active power command value; and a second active power command suppressor that adjusts an absolute value of an active power command value.Type: GrantFiled: September 18, 2020Date of Patent: April 29, 2025Assignees: HITACHI MITSUBISHI HYDRO CORPORATION, HITACHI, LTD.Inventors: Akira Bando, Takahiko Kikui, Kenta Watanabe, Tomomichi Ito, Yasuhiro Kiyofuji, Masakazu Ishikawa, Yosuke Nakaide
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Patent number: 12280813Abstract: A train operation support system for outputting a rescheduled timetable for a planned timetable of a train from a computer by using the planned timetable and an actual timetable of the train includes a timetable modification unit that modifies the planned timetable by using a given timetable modification method, a passenger flow prediction unit that calculates passenger staying information containing information indicating the number of staying passengers in each time zone at each station, by using demand information indicating a destination of a passenger in each time zone at each station where the train stops, a timetable rescheduling unit that modifies the demand information in reference to the planned timetable modified by the timetable modification unit, inputs the modified demand information to the passenger flow prediction unit, and creates the rescheduled timetable for the planned timetable by using the passenger staying information output from the passenger flow prediction unit, and an output unit thType: GrantFiled: September 7, 2021Date of Patent: April 22, 2025Assignee: Hitachi, Ltd.Inventors: Ryota Uematsu, Tsuyoshi Minakawa, Yuki Maekawa
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Patent number: 12283038Abstract: Provided is a tool wear monitoring device configured to input a plurality of pieces of image data captured with a microscope camera while changing an angle, and to monitor tool wear. The tool wear monitoring device includes a data analysis unit configured to analyze image data. The data analysis unit binarizes the plurality of pieces of image data captured while changing an angle, extracts data in which a worn region has a maximum area among the plurality of pieces of image data, and analyzes the amount of wear from the extracted data with the maximum area.Type: GrantFiled: June 15, 2022Date of Patent: April 22, 2025Assignee: Hitachi, Ltd.Inventors: Kenji Nishikawa, Yasushi Sano, Ippei Kono
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Patent number: 12276573Abstract: A water leakage position estimation system(S) configured to estimate a water leakage position in a pipe network including a plurality of pipe routes includes a water leakage determination unit (11) and an estimation unit (12e). The water leakage determination unit (11) determines whether a water leakage occurs in the pipe network based on a measured value of a vibration related to the pipe network that is acquired by a water leakage sensor (2) provided in the pipe network. The estimation unit (12e) estimates, when the water leakage determination unit (11) determines that a water leakage occurs in the pipe network, a pipe route in which the water leakage occurs from the plurality of pipe routes based on the measured value and a predicted value of the vibration for each pipe route acquirable by the water leakage sensor (2) when a water leakage occurs in each pipe route.Type: GrantFiled: March 16, 2021Date of Patent: April 15, 2025Assignee: HITACHI, LTD.Inventors: Yuudai Kamada, Toshiyuki Mine
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Patent number: 12277407Abstract: A programming aiding apparatus that includes a visual program storage unit performs a programming aiding method. In the apparatus, a training data generating unit edits the visual program. A graph learning unit trains a graph learning model that receives a feature of a node and a connection of the node in the visual program as an input, among the input data, and outputs a likelihood of a feature of a node to be added to in the visual program. An added node selecting unit calculates a likelihood of a feature of a node by using data of a visual program as input data input to the learning model trained by the graph learning unit, and selects a node to be added based on the likelihood.Type: GrantFiled: March 23, 2023Date of Patent: April 15, 2025Assignee: Hitachi, Ltd.Inventors: Tatsuya Hasebe, Erika Katayama, Makoto Onodera
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Patent number: 12277337Abstract: Systems and methods described herein can involve for receipt of an addition or modification of a storage device, executing a validation process from one or more managed validation kits according to a remote copy function associated with the storage device, the one or more managed validation kits selected according to one or more feature types associated with the remote copy function; associating the storage device with a corresponding group of storage devices associated with the remote copy function based on information provided by the one or more managed validation kits; and for the association of the storage device with the corresponding group of storage devices and the execution of the validation process being successful, registering the storage device to a storage class associated with the remote copy function.Type: GrantFiled: November 29, 2023Date of Patent: April 15, 2025Assignee: HITACHI, Ltd.Inventor: Hiroyuki Osaki
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Patent number: 12278672Abstract: A computing apparatus, includes a first apparatus and a second apparatus, a differential transmission line that couples the first apparatus and the second apparatus to each other, a noise application unit that applies noise to the differential transmission line, a noise control unit that controls the noise application unit, and a margin measurement unit that measures an occurrence frequency of communication error between the first apparatus and the second apparatus.Type: GrantFiled: September 8, 2022Date of Patent: April 15, 2025Assignee: Hitachi, Ltd.Inventors: Ryota Higashi, Masao Ogihara
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Patent number: 12269711Abstract: By using, as input, elevator specification information including at least sizes, quantity, and service floors of a plurality of elevators, a method for installing the plurality of elevators is calculated based on either the quantity of the plurality of elevators or the sizes of the plurality of elevators from arrangements including at least one or more of a planar arrangement where the plurality of elevators are aligned in a row on one side configuring an elevator boarding place, or an opposed arrangement where the elevators are divided and located on two opposite sides configuring the elevator boarding place; the shape of the elevator boarding place is determined by calculating the two sides configuring the elevator boarding place on the basis of the installation method and the sizes and quantity of the plurality of elevators; and furthermore, an elevator boarding place layout is generated by determining each floor where the elevator boarding place is to be installed according to the service floors.Type: GrantFiled: October 11, 2018Date of Patent: April 8, 2025Assignee: Hitachi, Ltd.Inventors: Masayasu Fujiwara, Takamichi Hoshino, Satoru Toriyabe, Takahiro Hatori, Wataru Toriumi
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Patent number: 12273041Abstract: This bidirectional DC-DC converter comprises: a transformer; a first bridge circuit for converting DC power and AC power to each other which are input and output between a first DC power supply and the primary side of the transformer; a second bridge circuit for converting DC power and AC power to each other which are input and output between a second DC power supply and the secondary side of the transformer; a first resonant circuit connectable between the first bridge circuit and the primary side of the transformer; a second resonant circuit connectable between the second bridge circuit and the secondary side of the transformer; a first bypass switch for switching the connection state of the first resonant circuit between the first bridge circuit and the primary side of the transformer; a second bypass switch for switching the connection state of the second resonant circuit between the second bridge circuit and the secondary side of the transformer; and a control unit for controlling each of the first bypasType: GrantFiled: June 2, 2021Date of Patent: April 8, 2025Assignee: Hitachi, Ltd.Inventors: Abhijit Choudhury, Akihiko Kanouda
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Publication number: 20250110842Abstract: 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: ApplicationFiled: March 6, 2024Publication date: April 3, 2025Applicant: Hitachi, Ltd.Inventors: Hiroto EBARA, Yoshinori OHIRA, Takahiro YAMAMOTO, Shintaro ITO, Sachie TAJIMA