Patents Assigned to Hitachi
  • Patent number: 12249129
    Abstract: The preset invention aims to provide a method of presenting a learning condition which enables an improvement in the accuracy of image analysis. An information processing apparatus for machine learning is provided which includes a true/false information generating unit which generates true/false information of an image analysis result, a reliability determining unit which determines reliability related to analysis in image analysis processing, and a learning condition output unit which presents a learning condition, based on the true/false information and the reliability.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: March 11, 2025
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Haruhiko Higuchi, Mitsuji Ikeda
  • Patent number: 12246687
    Abstract: An electromechanical actuator for a motor vehicle brake, comprising an electric motor absorbing a nominal rated current (In), a screw-and-nut movement converter including a screw with an axis (AX) extending in a longitudinal direction and a nut supported by the screw, and comprising at least one elastic return member for varying the resistance to forward motion in the longitudinal direction of an element being transferred between the nut and the screw at a predetermined position, in order to modify the nominal rating (In) of the current flowing through the motor while the element is being transferred to the predetermined position.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: March 11, 2025
    Assignee: HITACHI ASTEMO FRANCE
    Inventors: Gérard Luu, Christophe Dupas, Alberto Molinaro, Cédric Guignon, Marc Ayache
  • Patent number: 12246787
    Abstract: A support structure for a vehicle includes: a body portion (22); a damper attachment portion (24); a tie-rod attachment portion (26); and a lower arm attachment portion (28). The vehicle supporting structure (20) has a first rib (32) that connects the damper attachment portion (24) with the tie-rod attachment portion (26), a second rib (34) that connects the tie-rod attachment portion (26) and the lower arm attachment portion (28), and a third rib (36) that connects the first rib with the second rib. The first rib is inclined to have a height that gradually decreases from the damper attachment portion toward the tie-rod attachment portion, forming a first inclined portion (32a) and a first thinned portion (32b). The third rib is inclined to have a height that gradually decreases from the second rib toward the first rib, forming a second inclined portion (36a) and a second thinned portion (36b).
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: March 11, 2025
    Assignees: HITACHI ASTEMO, LTD., SUBURU CORPORATION, TOYOTO JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuhiro Maruyama, Susumu Yodono, Yasuaki Matsumoto
  • Patent number: 12249828
    Abstract: 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: Grant
    Filed: May 7, 2021
    Date of Patent: March 11, 2025
    Assignee: Hitachi, Ltd.
    Inventors: Akira Kikuchi, Akihiko Kanouda
  • Patent number: 12249856
    Abstract: A module (100) for use in an energy storage system is provided, including a first terminal (110) and a second terminal (112); a supercapacitor branch (120) including an arrangement (122) of one or more supercapacitors (124), and a resistive bypass branch (130) including at least a first bypass switch (132) and a resistance (134) connected in series. The supercapacitor branch and the resistive bypass branch are connected in parallel between the first terminal and the second terminal. The module may further include a direct bypass branch (140) having a second bypass switch (142), the direct bypass branch being also connected in parallel with the supercapacitor branch (120) between the first and second terminals. A control method of such a module and an energy storage system including several such modules, are also provided.
    Type: Grant
    Filed: May 31, 2021
    Date of Patent: March 11, 2025
    Assignee: HITACHI ENERGY LTD
    Inventors: Jean-Philippe Hasler, Juergen Steinke, Gunnar Ingeström, Jan Svensson, Lexuan Meng, Haofeng Bai, Tong Wu, Theodore Soong
  • Patent number: 12248769
    Abstract: 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: Grant
    Filed: February 15, 2022
    Date of Patent: March 11, 2025
    Assignee: HITACHI, LTD.
    Inventors: Hiroto Kaga, Masumi Kawakami, Yasufumi Suzuki
  • Patent number: 12250321
    Abstract: The present invention provides a method for message authentication, in particular in case of low of transmission or storage capacities. The present invention further provides corresponding devices for generating or sending authenticated messages and for receiving or retrieving authenticated messages as well as a system comprising such devices. In an embodiment, the method may comprise (a) preparing a data block having an uncompressed length; (b) compressing the data block so that the data block has a compressed length smaller than the uncompressed length; (c) determining an available length from at least the compressed length and a maximum length of a data frame; (d) calculating a message authentication code, MAC, from at least the data block, having a MAC length not greater than the available length; and (e) creating the data frame, comprising the data block and the MAC.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: March 11, 2025
    Assignee: Hitachi Energy Ltd
    Inventors: Dacfey Dzung, Thanikesavan Sivanthi
  • Patent number: 12248391
    Abstract: 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: Grant
    Filed: February 25, 2021
    Date of Patent: March 11, 2025
    Assignee: Hitachi, Ltd.
    Inventors: Masumi Kawakami, Yasufumi Suzuki
  • Publication number: 20250076334
    Abstract: An object of the present invention is to provide an automatic analysis device and an automatic analysis method that inhibit an increase in a usage amount of a detergent or a processing time due to excessive additional cleaning. According to the present invention, an automatic analysis device includes: a dispensing mechanism configured to aspirate and discharge a specimen; a cleaning unit configured to clean the dispensing mechanism; and a control unit configured to determine whether to perform additional cleaning in addition to normal cleaning performed at each dispensing. The control unit is configured to perform the determination based on a use of a pre-specimen dispensed before a post-specimen to be dispensed by the dispensing mechanism.
    Type: Application
    Filed: June 15, 2022
    Publication date: March 6, 2025
    Applicant: Hitachi High- Tech corporation
    Inventors: Masato YAMAUCHI, Takamichi MORI, Kenichi TAKAHASHI
  • Publication number: 20250077360
    Abstract: 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: Application
    Filed: March 11, 2024
    Publication date: March 6, 2025
    Applicant: Hitachi, Ltd.
    Inventors: Mitsuo HAYASAKA, Yuto KAMO, Akira YAMAMOTO
  • Publication number: 20250078166
    Abstract: 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: Application
    Filed: September 29, 2022
    Publication date: March 6, 2025
    Applicant: HITACHI, LTD.
    Inventors: Sonoko Kimura, Tomonori Yamamoto, Norihiko Moriwaki, Hikaru Koyama
  • Publication number: 20250076448
    Abstract: Provided are an own-vehicle position estimation device and an own-vehicle position estimation method which are capable of estimating the position of an own vehicle with high accuracy, including not only one-dimensional distances of movement but also two-dimensional directions of cornering. There are provided a vehicle position estimation unit 2 for calculating the position of a vehicle based on an output from a sensor for detecting a behavior of the vehicle, a wireless position estimation unit 1 for communicating with a wireless device 101 installed at an arbitrary position and for calculating the relative positions of the vehicle and the wireless device 101, and a position estimation parameter correction unit 3 for correcting parameters used for calculating at least the position of the vehicle and information about the cornering angle of the vehicle by the vehicle position estimation unit 2.
    Type: Application
    Filed: February 28, 2022
    Publication date: March 6, 2025
    Applicant: HITACHI ASTEMO, LTD.
    Inventors: Masato IMAI, Satoru OKUBO
  • Publication number: 20250079971
    Abstract: In a gate drive circuit, a first and second gate drives IC includes an INA terminal and an INB terminal to which a PWM signal is input, a gate output terminal that outputs a gate drive signal, and an OSFB terminal that outputs a feedback signal of the gate drive signal, and they are configured to output a gate drive signal in an ON state when the input of the INA terminal and the INB terminal is (ON, OFF). In the first gate drive IC, a first PWM signal is input to the INA terminal, and a second PWM signal is input to the INB terminal, and in the second gate drive IC, the second PWM signal is input to the INA terminal, and the first PWM signal is input to the INB terminal. The first diode includes a cathode side connected to the INB terminal of the second gate drive IC and an anode side connected to the OSFB terminal of the first gate drive IC.
    Type: Application
    Filed: February 7, 2022
    Publication date: March 6, 2025
    Applicant: HITACHI ASTEMO, LTD.
    Inventors: Takeshi IKUYAMA, Koichi YAHATA
  • Publication number: 20250078661
    Abstract: A computation device includes a map acquisition unit that acquires map information in a lane level; an obstruction information acquisition unit that acquires passing obstruction information on a lane on which a vehicle advancing in a first direction travels; and a temporary lane forming unit that divides lane information of the map information into sections based on the passing obstruction information, and updates a map attribute in the lane information that is divided to form a temporary lane in which at least a region where the vehicle advancing in the first direction cannot travel is changed to a region where the vehicle advancing in the first direction can travel.
    Type: Application
    Filed: March 8, 2022
    Publication date: March 6, 2025
    Applicant: HITACHI ASTEMO, LTD.
    Inventor: Akihiko HYODO
  • Patent number: 12241488
    Abstract: The cylinder device includes a first piston fitted in a first cylinder to be slidable, a piston rod connected to the first piston, and a stopper mechanism which operates when the first piston reaches a predetermined position on a first end portion side of one axial end of the first cylinder during an extension stroke or a compression stroke, in which the stopper mechanism includes a second cylinder provided on the first end portion side of the first cylinder and a second piston provided to be movable according to movement of the piston rod and able to fit into the second cylinder, and one end of the second piston on the first end portion side comes into contact with a rod flange part between a rod first outer diameter part of the piston rod and a rod second outer diameter part.
    Type: Grant
    Filed: February 22, 2024
    Date of Patent: March 4, 2025
    Assignee: HITACHI ASTEMO, LTD.
    Inventor: Andrew Feldkamp
  • Patent number: 12241521
    Abstract: A front fork includes a first tube body having an oil flowing therein, a second tube body provided inside the first tube body, the second tube body having the oil flowing therein, and having the oil flowing in an oil passage formed between the first tube body and the second tube body, a partition member provided in the second tube body and partitioning one end of an oil chamber, a rod extending along an axis of the second tube body through the partition member and being configured to move relative to the partition member, an outer periphery of the rod having a dimple portion recessed toward a center of the rod, and a piston provided at a distal end of the rod and allowing the oil to pass, wherein a boundary between an outer peripheral surface of the rod and the dimple portion is formed by a curved surface.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: March 4, 2025
    Assignee: Hitachi Astemo, Ltd.
    Inventor: Shigeki Awasa
  • Patent number: 12245204
    Abstract: A method of allocating resources to at least one wireless node in a wireless communication network, comprising: continuously receiving, at a wireless node, assignment of a number of slots, wherein the slots have a fixed slot time; obtaining (S1) information regarding physical layer parameters together with said assignment of said number of slots and said slot time; extracting (S2) a packet from a packet transmission queue maintained by said wireless node; computing (S3), based on the obtained information regarding physical layer parameters, a duration of said packet; comparing (S4A, S4B, S4C) said packet duration with said slot time; performing in real time at least one of fragmentation (S5C), aggregation (S5A) and reconfiguration (S5B) of said physical layer parameters, depending on the results of said comparison step and/or an amount of packets in said packet transmission queue; and mapping (S6) said packet to a first one of the assigned slots.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: March 4, 2025
    Assignee: HITACHI ENERGY LTD
    Inventors: Zhibo Pang, Michele Luvisotto, Roger Jansson
  • Patent number: D1066719
    Type: Grant
    Filed: July 28, 2023
    Date of Patent: March 11, 2025
    Assignee: Hitachi High-Tech Corporation
    Inventors: Daichi Furukawa, Ai Masuda, Takayuki Kanda, Akimasa Osaka, Yusuke Shimizu, Shigeki Yamaguchi
  • Patent number: D1066720
    Type: Grant
    Filed: July 28, 2023
    Date of Patent: March 11, 2025
    Assignee: Hitachi High-Tech Corporation
    Inventors: Daichi Furukawa, Ai Masuda, Takayuki Kanda, Akimasa Osaka, Yusuke Shimizu, Shigeki Yamaguchi
  • Patent number: D1066721
    Type: Grant
    Filed: July 28, 2023
    Date of Patent: March 11, 2025
    Assignee: Hitachi High-Tech Corporation
    Inventors: Daichi Furukawa, Ai Masuda, Takayuki Kanda, Akimasa Osaka, Yusuke Shimizu, Shigeki Yamaguchi