Patents Assigned to Hitachi
  • Publication number: 20250130066
    Abstract: An in-vehicle electronic controller includes a risk map generating unit that determines a traveling risk level in an area around the vehicle, based on external environment information acquired by an external environment sensor installed in the vehicle, movement information on the vehicle, and map information, and that maps the traveling risk level onto a map to generate a risk map; and a track generating unit that generates a traveling track of the vehicle, using the risk map. The track generating unit generates at least one binarized image representing the risk map divided into a low risk area and a high risk area, by a binarization process by which whether the traveling risk level is larger than a given set value is determined, performs a thinning process on the at least one binarized image to determine a center line in a width direction of the low risk area, and generates a traveling track of the vehicle, based on the determined center line.
    Type: Application
    Filed: February 21, 2022
    Publication date: April 24, 2025
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Tatsuhiko MONJI, Ryoh INABA
  • Patent number: 12283452
    Abstract: Provided is a charged particle beam apparatus capable of realizing a highly reliable insulating structure. This charged particle beam apparatus emits a charged particle beam from a charged particle beam emission device onto a sample, detects charged particles generated from the sample, and creates a sample image or processes the sample. The charged particle beam emission device is provided with a charged particle source and a shield arranged in an interior of a metal housing that is filled with an insulating gas, and an acceleration electrode arranged below the charged particle source, power being supplied to the acceleration electrode via the shield.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: April 22, 2025
    Assignee: Hitachi High-Tech Corporation
    Inventors: Hiroshi Morita, Takashi Kubo, Minoru Sakamaki, Shuhei Ishikawa, Shunichi Watanabe
  • Patent number: 12283386
    Abstract: Provided are a chemical decontamination method and a chemical decontamination apparatus capable of preventing deterioration of a metal ion exchange resin and performing decontamination at a low cost in a short time. The chemical decontamination method of the invention includes: a reduction decontamination step of supplying a reduction decontamination solution to a decontamination target portion and performing reduction decontamination on a surface of a member constituting the decontamination target portion; a hydrogen peroxide decomposition step of decomposing hydrogen peroxide contained in the reduction decontamination solution after the reduction decontamination step; and a metal ion removing step of removing a metal ion contained in the reduction decontamination solution after the hydrogen peroxide decomposition step.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: April 22, 2025
    Assignee: Hitachi-GE Nuclear Energy, Ltd.
    Inventors: Takashi Oohira, Satoshi Oouchi, Motohiro Aizawa, Nobuyuki Ota, Hideyuki Hosokawa, Ryo Hamada, Hiroo Yoshikawa, Naobumi Tsubokawa, Masahiko Kazama
  • Patent number: 12283091
    Abstract: The objective of the present invention is to provide an image classification device and a method therefor with which suitable teaching data can be created. An image classification device that carries out image classification using images which are in a class to be classified and include teaching information, and images which are in a class not to be classified and to which teaching information has not been assigned, said image classification device being characterized by being provided with: an image group input unit for receiving inputs of an image group belonging to a class to be classified and an image group belonging to a class not to be classified; and a subclassification unit for extracting a feature amount for each image in an image group, clustering the feature amounts of the images in the image group belonging to a class not to be classified, and thereby dividing the images into sub-classes.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: April 22, 2025
    Assignee: Hitachi High-Tech Corporation
    Inventors: Sota Komatsu, Masayoshi Ishikawa, Fumihiro Bekku, Takefumi Kakinuma
  • Patent number: 12283847
    Abstract: Improving the coercive force of magnets used in a rotary electric machine by arranging magnets such that a q-axis side portion is located on an outer diameter side with respect to a d-axis side portion, and a magnet thickness Ti on an inner diameter side (d-axis side) of a rotor core is formed to be larger than a magnet thickness To on the outer diameter side (q-axis side) of the rotor core. An axial space is formed in the magnets such that when the lateral cross section of each of the magnets is divided into an outer diameter side region112o and an inner diameter side region112i in a manner that the lateral cross section areas are equal to each other with a circumference C around a rotation center as a boundary, and a space density of the axial space in the inner diameter side region112i is larger than a space density of the axial space in the outer diameter side region112o.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: April 22, 2025
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Masahiro Hori, Masanori Sawahata
  • Patent number: 12283536
    Abstract: A problem is that close contact with a heat dissipation surface of a power semiconductor device is not sufficient, and thus heat dissipation performance is low. A thermally conductive layer 5 abuts on a heat dissipation surface 4a of a circuit body 100, and a heat dissipation member 7 abuts on the outside of the thermally conductive layer 5, which is a side of the heat dissipation surface 4a of the circuit body 100. A fixing member 8 abuts on a side of the circuit body 100 opposite to the heat dissipation surface 4a. A connection member 9 is penetrated at the respective end portions of the heat dissipation member 7 and the fixing member 8. FIG. 3 illustrates a state before a bolt and a nut of the connection member 9 are tightened. The heat dissipation member 7 holds a curved shape such that the central portion of the heat dissipation member 7 protrudes toward the circuit body 100.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: April 22, 2025
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Hiromi Shimazu, Yujiro Kaneko, Eiichi Ide, Yusuke Takagi, Hisashi Tanie
  • Patent number: 12283038
    Abstract: 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: Grant
    Filed: June 15, 2022
    Date of Patent: April 22, 2025
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Nishikawa, Yasushi Sano, Ippei Kono
  • Patent number: 12280795
    Abstract: An object of the present invention is to provide a vehicle control device configured, regardless of the number of travel lanes of a road, to generate a travel route based on a road width of the road or the like, so as to improve a continuous automatic driving system. The present invention provides a vehicle control device configured to perform vehicle control of a self vehicle based on information of a position of the self vehicle, information of a map, and information of a route. The vehicle control device determines, at a specific spot of the route, whether or not a travel lane (311) of the self vehicle has a lane width (Wr1) that allows a plurality of virtual vehicles (303 and 304) to travel parallel to each other, and on determination that the travel lane has the lane width, the vehicle control device generates, on the travel lane, a plurality of virtual lanes and virtual lane center lines (332 and 333) of the plurality of virtual lanes.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: April 22, 2025
    Assignee: Hitachi Astemo, Ltd.
    Inventor: Takeyuki Tominaga
  • Patent number: 12282000
    Abstract: The present invention aims to provide a biological sample analysis device which achieves an improvement in accuracy of an analysis result, a reduction in reagent cost, and shortening of a required time. The biological sample analysis device according to the present invention compares first measurement data acquired by measuring a biological sample and second measurement data acquired by measuring a reference sample and determines that when the difference between the two exceeds a threshold value, it is necessary to remeasure the reference sample before remeasuring the biological sample and reacquire a reference value (refer to FIG. 3A).
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: April 22, 2025
    Assignee: Hitachi High-Tech Corporation
    Inventors: Ayaka Okuno, Michiru Fujioka, Toru Yokoyama
  • Patent number: 12283878
    Abstract: A method for operating a power electronic converter comprising at least one power semiconductor device is provided. The method comprises the determination of the at least one current limit, by carrying out a first operation if the temperature of the at least one semiconductor device is above an upper temperature threshold in order to decrease the current limit, and by carrying out a second operation if the temperature of the at least one semiconductor device is below a lower temperature threshold in order to increase the current limit.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: April 22, 2025
    Assignee: Hitachi Energy Ltd
    Inventors: Giulia Beanato, Jerome Fischer, Simon Herold, Martin Klaeusler, Luigi Lucano
  • Patent number: 12283094
    Abstract: A sensor aiming device includes: a target positional relationship processing unit for outputting positional relationship information of first and second targets; a sensor observation information processing unit configured to convert the observation result of the first and second targets into a predetermined unified coordinate system according to a coordinate conversion parameter, perform time synchronization at a predetermined timing, and extract first target information indicating a position of the first target and second target information indicating a position of the second target; a position estimation unit configured to estimate a position of the second target using the first target information, the second target information, and the positional relationship information; and a sensor correction amount estimation unit configured to calculate a deviation amount of the second sensor using the second target information and an estimated position of the second target and estimate a correction amount.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: April 22, 2025
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Shunsuke Matsuo, Tatsuhiko Monji, Akira Kuriyama, Haruki Nishimura
  • Patent number: 12282034
    Abstract: Provided are a device and a method capable of determining an optimal retrieving condition of a specimen rack according to various situations, when an error occurs in any specimen among a plurality of specimens mounted on the specimen rack. When the error occurs in a specimen accommodated in a specimen container mounted on the specimen rack, conveyance of the specimen rack is controlled on the basis of information about the specimen having the error and a specimen accommodated in another specimen container on the specimen rack on which the specimen container with the specimen accommodated therein is mounted, and the retrieval condition of the specimen rack.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: April 22, 2025
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Takeshi Setomaru, Hiroyuki Mishima
  • Patent number: 12282670
    Abstract: Provided is a storage system and a storage management method, aiming at reducing data movement amount necessary for using an expanded capacity in a distributed RAID. When only A (A is a positive integer) physical storage drives are added, a storage controller selects virtual parcels that are mapped to different physical storage drives among N physical storage drives and are included in different virtual chunks, changes an arrangement of the selected virtual parcels to the added A physical storage drives, and constitutes a new chunk based on unallocated virtual parcels selected from different physical storage drives among the (N+A) physical storage drives.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: April 22, 2025
    Assignee: HITACHI VANTARA, LTD.
    Inventors: Hiroki Fujii, Yoshinori Ohira, Takeru Chiba, Yoshiaki Deguchi
  • Patent number: 12283458
    Abstract: There is provided a technique capable of shortening a photographing time and obtaining a more accurate photographed image when photographing a sample SAM using a charged particle beam device 1. The charged particle beam device 1 includes an electron gun 3, an objective lens 6, a stage 8, detectors 10 and 11, an integrated control unit C0, a photographing function, and an autofocus function. Each of a plurality of photographing visual fields is focused in a focus value calculation visual field 64 adjacent to a designated visual field 61 designated as a photographing target among the plurality of photographing visual fields, and a focus value calculated in the focus value calculation visual field 64 is used for calculating focus values of each of the plurality of photographing visual fields.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: April 22, 2025
    Assignee: Hitachi High-Tech Corporation
    Inventors: Mai Yoshihara, Hirotsugu Kajiyama, Hiroyuki Chiba
  • Patent number: 12280813
    Abstract: 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 th
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: April 22, 2025
    Assignee: Hitachi, Ltd.
    Inventors: Ryota Uematsu, Tsuyoshi Minakawa, Yuki Maekawa
  • Publication number: 20250121450
    Abstract: Provided is a welding method of preventing specular reflection when a surface of a welding target material is photographed and suppressing an occurrence of porosity of the welding target material. According to the present invention, a welding method includes melting steps (a) and (b) of melting a bonding portion of a welding target material 1 by arc discharge 4 while blowing an inert gas 3 to the bonding portion, and an oxidation step (d) of oxidizing the bonding portion by supplying the inert gas and a gas 6 containing oxygen to the bonding portion in a state where a portion of the melted bonding portion 7 is solidified and the other portion is melted.
    Type: Application
    Filed: December 21, 2021
    Publication date: April 17, 2025
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Jeremy JONG, Toshio HORI
  • Publication number: 20250126372
    Abstract: To provide a vehicle-mounted control device that suppress a ranging error by controlling an imaging start timing of a rolling-shutter type camera according to a situation when acquiring the three-dimensional information around the vehicle based on a pair of still images captured by a pair of the cameras including at least one rolling-shutter type camera. The vehicle-mounted control device communicates with a plurality of cameras including a first camera with a rolling-shutter type image sensor. The vehicle-mounted control device includes: a ranging unit that measures a distance to a ranging target using a plurality of images captured with a first camera and a second camera, the second camera being capable of capturing a same ranging target in at least part of an image capturing region of the first camera; and an exposure timing adjusting unit that adjusts an exposure timing of at least one of the first camera or the second camera based on a ranging position of at least one of the plurality of images.
    Type: Application
    Filed: July 29, 2022
    Publication date: April 17, 2025
    Applicant: Hitachi Astemo, Ltd.
    Inventor: Hiroaki NAKATA
  • Publication number: 20250126121
    Abstract: A network communication acquisition unit acquires network communication from an application. A communication discrimination filter determines whether the network communication is communication to a data store, and determines whether the network communication is communication for uploading a file to the data store when the network communication is communication to the data store. When the network communication is communication for uploading a file to the data store, a suspicious file upload detection filter evaluates whether the file is encrypted and determines whether the network communication is unauthorized access based on a result of the evaluation.
    Type: Application
    Filed: September 4, 2024
    Publication date: April 17, 2025
    Applicant: Hitachi Solutions, Ltd.
    Inventors: Yuki UEKI, Katsuya Nishijima, Tomohiro Shigemoto
  • Publication number: 20250121822
    Abstract: Provided is a collision avoidance assist device including an algorithm for adjusting a balance between prevention of the excessive operation and prevention of the non-operation. A recognition sensor 106, a first collision estimation unit 131 and a second collision estimation unit 132 having different characteristics (response characteristics), the first collision estimation unit 131 having higher responsiveness than the second collision estimation unit 132, and the second collision estimation unit 132 having higher noise resistance than the first collision estimation unit 131, a first collision risk level calculation unit 141 that calculates a first collision risk level based on a first estimation result, a second collision risk level calculation unit 142 that calculates a second collision risk level based on a second estimation result, and collision estimation arbitration unit 150, 250 that selects either the first estimation result or the second estimation result.
    Type: Application
    Filed: August 24, 2022
    Publication date: April 17, 2025
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Akinori KAMIYA, Satoshi KASHIWAMURA
  • Patent number: D1071946
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: April 22, 2025
    Assignee: Hitachi Vantara, Ltd.
    Inventors: Hiroyuki Noda, Shinji Shibuya, Yoshikatsu Kasahara, Kenichi Miyamoto