Patents Assigned to Hitachi
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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
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Patent number: 12316171Abstract: An object of the present invention is to provide an inverter integrated motor that achieves both improvement in cooling performance of a current sensor and downsizing of an entire device. An inverter integrated motor includes: a power module that converts a direct current into an alternating current; a flow path forming body that is formed so as to flow and cover a refrigerant in the power module; an inverter that installs the power module and the flow path forming body inside; a current sensor that detects the alternating current; and a motor that houses a stator and a rotor, wherein the power module is disposed at a position facing a rotation shaft of the motor via the stator and the rotor, and the current sensor 13 is disposed between the flow path forming body and a coil end of the stator when viewed from a direction perpendicular to the rotation shaft, and at least a part of the current sensor is housed in a motor housing.Type: GrantFiled: January 29, 2021Date of Patent: May 27, 2025Assignee: HITACHI ASTEMO, LTD.Inventors: Takeshi Tokuyama, Takaki Itaya, Masahiro Hori, Takashi Hirao
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Patent number: 12311946Abstract: A vehicle control device, a vehicle control method, and a vehicle control system according to the present invention estimate, in response to a deceleration command to a vehicle, the first deceleration generated by a frictional braking force based on characteristics of deceleration with respect to a force acting on a friction pad of a frictional braking device, determine the second deceleration by subtracting the first deceleration from the deceleration command, output the first command for generating the frictional braking force based on the deceleration command, and output the second command for generating the regenerative braking force based on the second deceleration. This allows compensating for uncertainty in achieving deceleration by frictional braking, and improving the accuracy of the actual deceleration with respect to the deceleration command.Type: GrantFiled: August 5, 2021Date of Patent: May 27, 2025Assignee: Hitachi Astemo, Ltd.Inventors: Tatsuya Iba, Kentaro Ueno, Daisuke Noma
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Patent number: 12311963Abstract: An object of the present invention is to provide a vehicle control device and a vehicle control system capable of further reducing system cost in failure mitigation. The vehicle control device includes a master ECU and one or more client ECUs.Type: GrantFiled: March 4, 2022Date of Patent: May 27, 2025Assignee: Hitachi Astemo, Ltd.Inventors: Swarn Singh Rathour, Tasuku Ishigooka, Hideyuki Sakamoto, Takeshi Fukuda, Fumio Narisawa
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Patent number: 12316308Abstract: A high-performance and highly reliable load driving device is provided that can quickly charge an ESD protection capacitor even at the time of load disconnection and complete all diagnoses of the driving system driver within a required time in a load driving device including a diagnosis circuit of a driving system driver and an ESD protection capacitor. A load driving device includes a load; a first switch element connected to the load and configured to control driving of the load; an ESD protection capacitor connected between the load and the first switch element; a charging circuit connected between the load and the first switch element and configured to charge the ESD protection capacitor; and a second switch element connected between the ESD protection capacitor and the charging circuit.Type: GrantFiled: September 9, 2021Date of Patent: May 27, 2025Assignee: HITACHI ASTEMO, LTD.Inventors: Yuta Mifune, Koichi Tsukio
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Patent number: 12312770Abstract: An object of the present invention is to provide a construction machine that is equipped with a pressure accumulating device, which accumulates the return oil of an actuator, and that is capable of adjusting the operation speed of the actuator according to the revolution speed of a prime mover.Type: GrantFiled: April 7, 2021Date of Patent: May 27, 2025Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Seiji Hijikata, Yasutaka Tsuruga, Masatoshi Hoshino, Ryou Yagisawa
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Patent number: 12312659Abstract: A wear-resistant member contains a Cr-based alloy material. The Cr-based alloy material includes more than 40 mass % and 65 mass % or less of Cr, 15 mass % or more and 40 mass % or less of Ni, more than 0 mass % and 30 mass % or less of Fe, 5 mass % or more and 16 mass % or less of Nb, 0.1 mass % or more and 0.9 mass % or less of Ti, 0.6 mass % or more and 2.5 mass % or less of C, 2 mass % or less of Mn, and impurities. In the Cr-based alloy, a mass ratio Ti/Nb of the Nb and the Ti is 0.063 or less.Type: GrantFiled: June 9, 2021Date of Patent: May 27, 2025Assignee: Hitachi, Ltd.Inventors: Mitsuru Hasegawa, Tomonori Kimura, Masafumi Noujima
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Patent number: 12315633Abstract: A medical image processing apparatus and a medical image processing method that can improve extraction accuracy of a tumor region included in a diagnosis target image are provided. The medical image processing apparatus configured to extract a predetermined region from a diagnosis target image includes: an organ extraction unit configured to extract an organ region from the diagnosis target image; and a tumor extraction unit generated by executing machine learning using a known tumor region included in each medical image group as teacher data and using an organ region extracted from the medical image group and the medical image group as input data. The tumor extraction unit is configured to extract a tumor region from the diagnosis target image using the organ region extracted from the diagnosis target image by the organ extraction unit.Type: GrantFiled: April 6, 2022Date of Patent: May 27, 2025Assignee: HITACHI, LTD.Inventors: Yun Li, Hanae Yoshida, Mayumi Suzuki
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Patent number: 12314848Abstract: Provided is a computer system for generating a neural network (NN) used for a task including a training unit that calculates a weighting factor between a reservoir and an output layer using training data, a first storage unit that stores, as node activity information, information on a node activity level of a node included in the reservoir, and a second storage unit that stores model information. When receiving a training execution request for a second task after a training process of a first task is completed, the training unit calculates a weighting factor of the NN used for a third task obtained by combining the first task and the second task, updates the model information based on the calculated weighting factor, and updates the node activity information based on the node activity measured during execution of the training process of the third task.Type: GrantFiled: July 27, 2020Date of Patent: May 27, 2025Assignee: HITACHI, LTD.Inventors: Tadashi Okumura, Sanato Nagata, Masahiko Ando
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Patent number: 12316209Abstract: Provided is an inverter device that detects abnormalities of a power device of the inverter device, and of a gate drive to be able to safely control the inverter device. The inverter device includes a gate voltage detection unit 19 that detects a gate voltage of the power device, and a drain voltage detection unit 30 that detects a drain voltage. A microcontroller 10 compares a gate drive signal 40 with a gate voltage detection signal 41 to make a diagnosis and compares the gate drive signal 40 with a drain voltage detection signal 42 to make a diagnosis, thereby making a diagnosis and detection of the gate voltage on normal. In addition, by generating a gate drive signal to the power device, from a gate voltage detection signal from a counter power device, a dead time is reduced.Type: GrantFiled: February 5, 2021Date of Patent: May 27, 2025Assignee: Hitachi Astemo, Ltd.Inventors: Masahiro Doi, Takeo Yamashita, Mitsuhiro Iwasaki
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Patent number: 12311971Abstract: To provide a vehicle control system that is capable of planning a trajectory that can ensure more visibility and enables safe traveling when an invisible range of a sensor exists. A vehicle control system that plans a target trajectory of a vehicle based on recognition information from an external environment sensor, the vehicle control system including a recognizing unit that recognizes an object at a periphery of the vehicle based on the recognition information; and a trajectory planning unit that plans the target trajectory such that an actual detection range of the external environment sensor becomes wide when the recognizing unit recognizes the object.Type: GrantFiled: December 4, 2020Date of Patent: May 27, 2025Assignee: HITACHI ASTEMO, LTD.Inventors: Trongmun Jiralerspong, Ryoh Inaba, Hidehiro Toyoda
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Patent number: 12316445Abstract: In one embodiment, a method can be performed by a network controller of the wireless communication system. The method includes classifying each available channel in the wireless communication system into one of multiple channel categories according to performance and usability characteristics of each available channel. The method also includes ranking the channels per each category and assigning, according to the channels as ranked, at least one of the channels to each of the end-nodes. The method includes providing, in a channel list and to the end-nodes, information of which at least one channel has been assigned to each end-node.Type: GrantFiled: January 29, 2021Date of Patent: May 27, 2025Assignee: Hitachi Energy LtdInventors: Michele Luvisotto, Zhibo Pang, Xiaolin Jiang, Roger Jansson, Marek Czepulonis
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Patent number: 12316236Abstract: A method is configured for operating a converter (10) which is implemented as a modular-multilevel converter and comprises a control arrangement (38) and a number M of phase-legs (21 to 29). The method comprises detecting whether the converter (10) has to be set into one mode of a group comprising a static synchronous compensator mode or a grid unbalance mode, generating mode control signals (MCS) depending on the detected mode, generating balance voltage reference signals (ubal,ref) depending on a first side frequency (?g), a second side frequency (?m), second side current reference signals (im,ref) and the mode control signals (MCS), generating a phase-leg control signal (uref), generating cell control signals (51 to S4) and providing the cell control signals (51 to S4) to semiconductor switches (41 to 44) of cells (31) of the phase-legs (21 to 29).Type: GrantFiled: March 4, 2021Date of Patent: May 27, 2025Assignee: HITACHI ENERGY LTDInventor: Alexandre Christe
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Patent number: 12316239Abstract: A cell (12) comprises a first cell connection terminal (CC1), a second cell connection terminal (CC2), a first series connection of two switches (T1, T2), an energy storage branch (ESB) comprising a capacitor (CC) and a first power link interconnecting the first series connection of two switches (T1, T2) with the energy storage branch (ESB), where the first power link has an inductance (LBB1) that changes based on the current through it. There is also a converter comprising such a cell.Type: GrantFiled: June 12, 2020Date of Patent: May 27, 2025Assignee: Hitachi Energy LtdInventors: Aravind Mohanaveeramani, Georgios Stamatiou, Panagiotis Kakosimos
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Patent number: 12315695Abstract: A sample holder reliably holds a liquid or gel sample, and the yield of observation with a charged particle beam device is improved.Type: GrantFiled: October 10, 2019Date of Patent: May 27, 2025Assignees: Hitachi High-Tech Corporation, National Institute of Advanced Industrial Science and TechnologyInventors: Michio Hatano, Mitsuhiro Nakamura, Toshihiko Ogura
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Patent number: 12314044Abstract: Computation is made of a production plan and sequence satisfying constraint conditions using an interaction model. A system includes a storage device to store management information about specifications on each of a plurality of things to be produced and a computational device to compute a planned sequence of things to be produced in a production process to produce the plurality of things using an interaction model, based on the management information. In this system, the computational device computes an interaction model in which an assignment event of a sequential position in a production process to each of the things is assumed as a variable and a constraint condition regarding the production process is set as strength of an interaction between variables.Type: GrantFiled: March 26, 2020Date of Patent: May 27, 2025Assignee: HITACHI, LTD.Inventors: Norifumi Kameshiro, Takuya Okuyama
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Patent number: 12314875Abstract: A plan parameter obtaining an optimal result between a plurality of software pieces that are linkingly operated is calculated. A value chain plan linking method that uses a value chain plan linking apparatus that combines and executes a plurality of software pieces according to a task. At least any one of the plurality of software pieces uses, as an input parameter, an output parameter obtained from any one of other software pieces included in the plurality of software pieces. The value chain plan linking apparatus executes a different solution requiring step of calculating a plurality of the output parameters in each of the plurality of software pieces, and a displaying step of displaying, as an overall plan, the output parameter obtaining a best key performance indicator value in the entire value chain according to a combination of the input and output parameters of the plurality of software pieces.Type: GrantFiled: May 10, 2021Date of Patent: May 27, 2025Assignee: Hitachi, Ltd.Inventors: Atsuki Kiuchi, Tazu Nomoto
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Publication number: 20250167502Abstract: A method for manufacturing a conductor plate includes: a press process of forming a predetermined closed region by press molding and separating a predetermined bent region from the periphery of the closed region while leaving only a connection portion that is a part of the bent region; and a bending process of bending the bent region at the connection portion to laminate the bent region with the laminated region that is another region in the closed region, and developing a part of the bent region to the outside of the closed region.Type: ApplicationFiled: January 19, 2022Publication date: May 22, 2025Applicant: HITACHI ASTEMO, LTD.Inventor: Katsuhide OHASHI
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Publication number: 20250166431Abstract: An object of the present invention is to provide a diagnostic server that can easily diagnose whether an abnormality occurring in a vehicle is a result of an attack or simply a malfunction. A diagnostic server 1 of the present invention includes a log acquisition unit 13 that acquires a history of a first log indicating whether an ECU 32 in a vehicle 3 executes predetermined processing in response to a request signal that requests the ECU 32 to execute the predetermined processing, and a communication determination unit 15 that, when a non-execution log indicating that the predetermined processing is not executed is included in the history, determines validity of communication used to transmit the request signal corresponding to the non-execution log.Type: ApplicationFiled: August 8, 2022Publication date: May 22, 2025Applicant: HITACHI ASTEMO, LTD.Inventors: Kota IDEGUCHI, Shinya SASA, Takashi YAMAGUCHI, Yasuhiro FUJII, Nobuyoshi MORITA
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Publication number: 20250165398Abstract: A controller has a memory data protection function of generating a cache data log including data of a memory and a header related to update of the data and writing the cache data log to any one of a plurality of kinds of drives, and the controller uses the memory data protection function to select, from the plurality of kinds of drives, a drive that is to store the cache data log, according to necessary performance, and store the cache data log in the selected drive.Type: ApplicationFiled: February 20, 2024Publication date: May 22, 2025Applicant: Hitachi, Ltd.Inventors: Sadahiro SUGIMOTO, Tomohiro Yoshihara, Takashi Nagao