Patents Assigned to Hitachi
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Patent number: 12324125Abstract: An electric circuit device includes: a first electric component; a first case that accommodates the first electric component and has a cooling channel for cooling the first electric component and a discharge port of the cooling channel; a second case that accommodates a second electric component and has a communication channel that communicates with a discharge port of the cooling channel; a first seal portion that is provided in a peripheral edge part of a discharge port of the cooling channel and seals the first case and the first electric component; a second seal portion that is provided outside the first seal portion with respect to a discharge port of the cooling channel and seals the first case and the first electric component; a through hole that is provided in the first case between the first seal portion and the second seal portion of and penetrates the first case from the first electric component side to the second case side; and a wall that is provided on one of the first case and the second case tType: GrantFiled: December 10, 2020Date of Patent: June 3, 2025Assignees: HITACHI ASTEMO, LTD., HONDA MOTOR CO., LTD.Inventors: Akihiro Goto, Keiichi Tadokoro, Morio Kuwano, Masaru Kamoshida, Fusanori Nishikimi, Tomoyuki Suzuki
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Patent number: 12320630Abstract: A dimension measurement apparatus that automatically corrects a deviation of a contour without operator determination. The dimension measurement apparatus includes: a model learning unit that obtains a learning cross-sectional image and learning labels attached to different regions of the learning cross-sectional image and generates a deep learning model for image region division using the learning cross-sectional image and the learning labels; a model estimation unit that applies the model to a newly input target image and labels each independent region; a contour correction unit that detects a contour of each region using the target image and the labels, sets a representative point on the contour of the region, moves each representative point according to a movement rule, and repeats movement of the representative point until contour correction is complete; and a dimension measurement unit that measures a dimension of a device cross-sectional structure using the corrected contour.Type: GrantFiled: June 22, 2020Date of Patent: June 3, 2025Assignee: Hitachi High-Tech CorporationInventors: Pushe Zhao, Takeshi Ohmori, Yutaka Okuyama
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Patent number: 12320740Abstract: Disclosed is an apparatus for acquiring polarized images attached to a thermal analysis apparatus including a pair of sample containers housing a measurement sample and a reference sample, respectively, and a heating furnace, configured to observe at least the measurement sample through a window or an opening of the heating furnace, and including an attachment section attached to the thermal analysis apparatus, a light source, a polarizer configured to polarize light emitted from the light source, a camera and an analyzer polarize light reflected from the measurement sample or the reference sample to enter the camera after the measurement sample or the reference sample is irradiated via the window or the opening with polarized light transmitted through the polarizer. A first optical path of the polarizer and a second optical path of the analyzer are not parallel, and both the polarizer and the analyzer are rotatable.Type: GrantFiled: January 6, 2023Date of Patent: June 3, 2025Assignee: HITACHI HIGH-TECH SCIENCE CORPORATIONInventors: Hirohito Fujiwara, Ryokuhei Yamazaki
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Patent number: 12321470Abstract: A first computer, in data registration processing: determines a type of biometric information for encryption with which the data is to be encrypted; acquires the determined type of biometric information for encryption from a user of the first computer; generates, from each piece of the acquired biometric information for encryption, a public key based on a predetermined algorithm; transmits the public key to a second computer; and transmits the data encrypted with the public key to the third computer, the first computer, in data presentation processing: acquires the encrypted data from a third computer; acquires the determined type of biometric information for decryption from the user of the first computer; generates, from each piece of the acquired biometric information for decryption, a private key based on the predetermined algorithm; decrypts the encrypted data with use of the private key; and presents each piece of the decrypted registered data.Type: GrantFiled: June 3, 2022Date of Patent: June 3, 2025Assignee: Hitachi, Ltd.Inventors: Yukie Motomiya, Takayuki Habuchi, Kenta Takahashi, Ken Naganuma, Non Kawana
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Patent number: 12318630Abstract: A correlation between a CT value and a water equivalent thickness ratio distribution for each patient can be corrected without increasing a treatment time, and more accurate treatment can be realized. A treatment planning system 112 which generates a treatment plan for irradiating an irradiation target with a particle beam calculates a correction amount of a water equivalent thickness ratio of a first treatment plan created in advance, calculates a water equivalent thickness ratio distribution based on the correction amount and the first treatment plan, and creates a second treatment plan from the water equivalent thickness distribution.Type: GrantFiled: April 20, 2022Date of Patent: June 3, 2025Assignee: HITACHI, LTD.Inventors: Takuto Miyoshi, Shinichirou Fujitaka, Taisuke Takayanagi
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Publication number: 20250170913Abstract: In one aspect of a vehicle charging apparatus, a vehicle charging control method, and a vehicle charging system of the present invention, there is provided a charging circuit, an input side of the charging circuit being connected to an external power source via a first switching device and an output side of the charging circuit being connected to a vehicle driving battery in the order of a DC/DC converter and a second switching device, in which the DC/DC converter is connected to an auxiliary battery. When the voltage of the auxiliary battery drops, the charging circuit is actuated in a state in which the second switching device is open to start charging the auxiliary battery, and then the second switching device is closed to start charging the vehicle driving battery. This allows stable charging of the vehicle driving battery even when the auxiliary battery is in the voltage drop situation.Type: ApplicationFiled: May 29, 2023Publication date: May 29, 2025Applicant: HITACHI ASTEMO, LTD.Inventor: Akihiro SATO
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Publication number: 20250173070Abstract: A storage system includes components operating in a first power mode or at least one second power mode in a switchable manner, the second mode consuming less power than the first mode, a condition monitoring section monitoring an operating condition of each of the plurality of components, and a power mode control section determining a power mode of at least one particular component to be the second power mode, according to a processing load which is related to each of the plurality of components, which corresponds to a result of monitoring by the condition monitoring section, and operates the at least one particular component in the second power mode, in which the plurality of components perform mutual control with the storage apparatus in accordance with the data input/output request.Type: ApplicationFiled: November 22, 2024Publication date: May 29, 2025Applicant: Hitachi Vantara, Ltd.Inventors: Masahiro TSURUYA, Tomohiro YOSHIHARA, Norio SHIMOZONO, Katsuya TANAKA
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Publication number: 20250171076Abstract: A control unit includes plural control devices configured to control drive of an electric motor. The plural control devices have general functions used for operating the electric motor both during a normal state and during a fault state, the normal state being where the plural control devices is working properly, the fault state being where any one of the plural control devices is having a fault. The plural control devices have normal-time functions distributed among the plural control devices, the normal-time functions being for use during the normal state but unnecessary during the fault state.Type: ApplicationFiled: June 30, 2022Publication date: May 29, 2025Applicant: Hitachi Astemo, Ltd.Inventor: Hiroaki KURIHARA
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Publication number: 20250173310Abstract: A processor uses a snapshot virtual device as a storage destination for data of a primary volume and a snapshot volume, compresses data stored in the snapshot virtual device and stores the compressed data in a compression virtual device, and stores the data stored in the compression virtual device in a storage device. When a write request is received from a host, the processor switches, according to a size of an address range of a write destination, between overwriting processing of overwriting an area on the snapshot virtual device which is allocated to large-size data and new allocation processing of allocating a new area on the snapshot virtual device to the address range of the write destination for small-size data, and compresses a plurality of pieces of small-size data stored in the new area and collectively stores the plurality of pieces of small-size data in the compression virtual device.Type: ApplicationFiled: September 9, 2024Publication date: May 29, 2025Applicant: Hitachi Vantara, Ltd.Inventors: Yoshihiro YOSHII, Takashi NAGAO, Tomohiro YOSHIHARA
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Publication number: 20250175003Abstract: A workload replacement planning program migrates an execution site that executes a workload by a migration plan created using a site energy management table. Also, the workload replacement planning program acquires error information indicating a deviation amount, which is the magnitude of a deviation between a first forecast value, which is a value shown in the site energy management table used to create a migration plan for a target amount, which is at least one of a renewable energy supply amount or an electric power demand amount, and a second forecast value of the target amount predicted after the first forecast value, and the deviation occurrence time point, which is the time point at which the deviation occurs. Then, the workload replacement planning program creates a corrected migration plan, in which the migration plan is corrected, based on the error information and the load-related information.Type: ApplicationFiled: August 28, 2024Publication date: May 29, 2025Applicant: Hitachi Vantara, Ltd.Inventor: Satoshi KANEKO
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Publication number: 20250173081Abstract: Operation verification is effectively performed upon migration between interfaces utilizing a storage apparatus having a drive apparatus for storing data and for execution of at least one script. The storage apparatus includes an old program invoked and executed by a pre-migration script, a new program invoked and executed by a post-migration script, an operation control part configured to control a first operation on the drive apparatus in response to a first instruction corresponding to a request from the old program and a second operation on the drive apparatus in response to execution of a second instruction corresponding to a request from the new program, and a migration verification part configured to, in a case where the first instruction satisfies a predetermined condition in relation to the second instruction, the migration verification part determines that migration from the pre-migration script to the post-migration script is successfully performed.Type: ApplicationFiled: February 27, 2024Publication date: May 29, 2025Applicant: Hitachi, Ltd.Inventors: Soichi WATANABE, Mitsuo Hayasaka, Tsukasa Shibayama
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Publication number: 20250175524Abstract: A computer system includes a storage system that constructs a primary site that provides one or a plurality of primary volumes to a host, a storage cluster that is connected to the storage system via a network, and has a plurality of nodes, and a management computer. When a secondary site having a secondary volume to which a remote copy of a primary volume at the primary site is set is constructed in the storage cluster, the management computer manages, as a group, a plurality of volumes including a secondary volume, and performs control such that a plurality of volumes including the secondary volume are placed in a plurality of nodes of the storage cluster based on the group.Type: ApplicationFiled: February 15, 2024Publication date: May 29, 2025Applicant: Hitachi, Ltd.Inventors: Tsukasa SHIBAYAMA, Akira Deguchi, Mitsuo Hayasaka
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Publication number: 20250173073Abstract: A storage system with reduced power consumption includes a storage apparatus that saves data in accordance with a data input/output request from a host or outputs the saved data, the storage system including a plurality of components each configured to operate in a first power mode or at least one second lower power mode in a switchable manner, a condition monitoring module monitoring each of the plurality of components, and a power mode control module that determines a power mode of at least one component to be the second power mode, according to a processing load related to each of the plurality of components and which corresponds to a result of monitoring by the condition monitoring module, and operates the at least one particular component in the power saving mode, in which the plurality of components perform mutual control with the storage apparatus in accordance with the data input/output request.Type: ApplicationFiled: December 12, 2024Publication date: May 29, 2025Applicant: Hitachi Vantara, Ltd.Inventors: Masahiro TSURUYA, Tomohiro YOSHIHARA, Norio SHIMOZONO
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Publication number: 20250175381Abstract: A redundancy of communication in a communication system can be appropriately set. A configuration is provided in which in a server for setting a redundancy for a communication system allowing communication via a network according to a set redundancy, a processor is provided, and the processor is configured to receive, from an application, a use-predicted communication bandwidth which is a communication bandwidth predicted to be used in the network, determine a redundancy limit which is an upper limit of a redundancy in communication by the application based on a communication bandwidth usable in the network and the use-predicted communication bandwidth, and set, in the communication system, a redundancy equal to or less than the determined redundancy limit as the redundancy in the communication by the application.Type: ApplicationFiled: March 15, 2024Publication date: May 29, 2025Applicant: Hitachi, Ltd.Inventors: Katsuto SATO, Takafumi KIKUCHI, Takeru CHIBA
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Patent number: 12315728Abstract: Provided are a semiconductor device and a power converting device utilizing a field-stop layer in a vertical semiconductor device with improved manufacturability using large-diameter wafers. A semiconductor device manufacturing method according to the present invention is characterized by: a step for, after a pattern on a main surface side of a drift layer of a first conductivity type is formed, irradiating ions from a second main surface side to a predetermined depth; a step for, after the ion irradiation, converting the ions into donors by anneal processing of heating at 300-450° C. for 60 seconds or less, thereby forming a field-stop layer; and a step for reducing the thickness of a semiconductor substrate to a predetermined value from the second main surface side such that a crystal defect having occurred in the ion irradiating step is eliminated.Type: GrantFiled: November 25, 2021Date of Patent: May 27, 2025Assignee: HITACHI POWER SEMICONDUCTOR DEVICE, LTD.Inventors: Tomoyasu Furukawa, Tsubasa Moritsuka
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Patent number: 12313069Abstract: A screw compressor has first and second screw rotors that suck, compress, and deliver a working medium; a first bearing supporting one end of the first screw rotor coupled to a rotating shaft of a power source; a casing housing the first screw rotor and first bearing; a shaft-sealing member located on an opposite side of a tooth profiler for the first screw rotor relative to the first bearing and seals a through hole in the casing, through which a shaft of the first screw rotor coupled to the output shaft of the power source is inserted; a partition wall isolating the first bearing from the shaft-sealing member; and a liquid-supply route that is provided in the casing and has a first liquid supply opening for supplying a lubricating liquid to the shaft-sealing member and a second liquid supply opening for supplying the lubricating liquid to the first bearing.Type: GrantFiled: May 27, 2022Date of Patent: May 27, 2025Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Shuhei Nagata, Shigeyuki Yorikane, Kenji Morita, Yuta Kajie, Kotaro Chiba
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Patent number: 12311974Abstract: In some examples, a system receives sensor data from sensors on board a vehicle. Based at least on the sensor data indicating an anomaly has occurred and is affecting a travel path of the vehicle, an uncertainty threshold is compared with an uncertainty value associated with a prediction model. For instance, the uncertainty value may be indicative of a difference between a predicted value predicted by the prediction model and an actual measured value related to at least one operation parameter of the vehicle. Based at least on determining that the anomaly has occurred and that the uncertainty value is within the uncertainty threshold, sending, by the system, a communication for obtaining an updated prediction model.Type: GrantFiled: August 23, 2022Date of Patent: May 27, 2025Assignee: HITACHI ASTEMO, LTD.Inventors: Akshay Vijay Gokhale, Subrata Kumar Kundu, Yashodeep Dilip Lonari
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Patent number: 12313566Abstract: A defect inspection device includes an illumination unit that irradiates a sample with a linear illumination spot; a condensing detection unit that condenses reflected light of the illumination spot from the sample; and a sensor unit that forms an optical image on a light reception surface, and outputs the optical image as an electrical signal. An angle ? formed between an optical axis of the condensing detection unit and a longitudinal direction of the linear illumination spot is 10° or more and less than 80°. The sensor unit is a line sensor provided with an array-like light reception unit at a position conjugate with the illumination spot. An angle ? formed between direction of the line sensor and the optical axis of the condensing detection unit is 10° or more and less than 80°, and has a difference from the angle ? of 5° or more.Type: GrantFiled: August 2, 2019Date of Patent: May 27, 2025Assignee: Hitachi High-Tech CorporationInventors: Toshifumi Honda, Yuta Urano, Shunichi Matsumoto, Hisaaki Kanai
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Patent number: 12317404Abstract: There is provided a circular accelerator that accelerates a beam of charged particles circulating in a magnetic field such that a closed orbit for each energy of the beam is eccentric. The circular accelerator includes a beam extraction port for extracting beams of different energies from the closed orbit, a first bending magnet and a second bending magnet that bend the beam extracted from the beam extraction port, and a control unit that controls magnetic field strengths of the first bending magnet and the second bending magnet in accordance with the energy of the extracted beam. When the energy of the extracted beam is a designed maximum energy of the circular accelerator, the control unit excites both the first bending magnet and the second bending magnet to bend the beam.Type: GrantFiled: September 27, 2022Date of Patent: May 27, 2025Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Futaro Ebina, Takuya Nomura
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Patent number: 12314699Abstract: A software query information management system is configured to associate a required device specification with a regulation ID of a regulation defining a requirement for receiving legal approval for a vehicle and store the required device specification in association with the regulation ID, identify the regulation ID associated with the required device specification associated with traceability information of the device associated with the required device specification, generate software query information in which the identified regulation ID is associated with one or more software IDs included in the traceability information, identify, based on the software query information, a software ID of other software associated with the regulation ID associated with a software ID of software embedded in the device in which an event has occurred, and generate evidence based on communication data of the device having embedded therein the software with the identified software ID.Type: GrantFiled: July 13, 2021Date of Patent: May 27, 2025Assignee: HITACHI, LTD.Inventor: Takehiko Nagano