Patents Assigned to Hitachi, Ltd. (JP)
  • Publication number: 20260244172
    Abstract: A design assistance system that calculates values representing the state ununiformity in a spatial area on the basis of information about a state at each position in a case where a process has been performed on raw materials distributed in the spatial area, generates a state distribution model that outputs data representing the state ununiformity after the process on the basis of the values, acquires values of data representing the state ununiformity after the process by inputting set values of process design parameters to the state distribution model, acquires a quality parameter of a deliverable by inputting each piece of data identified from the values of the data, the identified data representing a possible state, to the quality prediction model, and changes the values of the process design parameters, on the basis of each quality parameter, such that the quality of a deliverable falls within a predetermined range.
    Type: Application
    Filed: April 30, 2024
    Publication date: August 20, 2026
    Applicant: HITACHI, LTD.
    Inventors: Yohei Kono, Yoshinori Mochizuki, Tomohiro Otsu
  • Publication number: 20260240454
    Abstract: It is possible to prevent, by accurately detecting an overload state accumulated in a worker and promoting improvement, a decrease in work efficiency and occurrence of a failure due to fatigue of the worker and working in an unstable posture. In a load recognition device including a communication unit that receives and transmits a signal, and a processing unit that processes the signal received by the communication unit, the processing unit processes signals received by the communication unit from a plurality of posture sensors mounted on a workwear worn by a worker, estimates a posture of the worker, and determines a high load state of the worker based on a temporal change in the estimated posture. The communication unit receives the signals from the plurality of posture sensors mounted on the workwear worn by the worker, and transmits information on the high load state of the worker determined by the processing unit.
    Type: Application
    Filed: February 22, 2023
    Publication date: August 20, 2026
    Applicant: Hitachi, Ltd.
    Inventor: Takehiro NIIKURA
  • Publication number: 20260246284
    Abstract: The power output from multiple power generation modules can be effectively managed by a battery charging control device that includes a major control unit, which increases the converter's output power in the main module by subtracting the battery voltage from a predetermined battery voltage command value, and a secondary control unit that adjusts each secondary module's power output to closely match its respective secondary power command value.
    Type: Application
    Filed: April 4, 2024
    Publication date: August 20, 2026
    Applicant: Hitachi, Ltd.
    Inventors: Satoru KANEKO, Kengo KUMANO, Astushi SHIMADA, Shogo NAMBA, Akeshi TAKAHASHI
  • Patent number: 12709555
    Abstract: A drainage treatment system is applied to receive drainage from a large number of factories and overflow while reducing the size of a storage tank. The drainage from the storage tank is purified by a water treatment device having a combination of solid detergent and liquid regenerant, and includes a solid detergent filtering device that performs a purification operation in which the drainage from the storage tank is transformed into purified water. The regeneration device performs regeneration in which impurities absorbed to the solid detergent filtering device are desorbed; and the treatment facility control device acquires operating plan information to predict the amount of drainage discharge from the factories, and to predict the transition of a physical quantity at each part of the storage tank and the water treatment device associated with the predicted amount of drainage discharge, and controls the timing of operation in accordance with the prediction result.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: August 18, 2026
    Assignee: HITACHI, LTD.
    Inventors: Tadashi Sano, U Oh
  • Patent number: 12712146
    Abstract: A sample holder enables easy control of a progress rate of a chemical reaction of a sample to be observed and facilitates observation of the chemical reaction. A sample holder includes a cylindrical holder outer cylinder, a sample holding section that is connected to one end of the holder outer cylinder and holds a sample, a gas reservoir tank that is connected to another end of the holder outer cylinder and stores gas, an orifice for ejecting the gas stored in the gas reservoir tank into the holder outer cylinder, and a valve for controlling a flow of the gas stored in the gas reservoir tank into the orifice. The sample holding section has an open end for discharging the gas supplied from the gas reservoir tank and having passed through the sample.
    Type: Grant
    Filed: March 13, 2024
    Date of Patent: August 18, 2026
    Assignee: HITACHI, LTD.
    Inventors: Akira Sugawara, Fumiaki Ichihashi, Toshiaki Tanigaki
  • Patent number: 12711644
    Abstract: Provided is a technique capable of reducing a difference in the number of effective pixels between a plurality of images and enhancing performance, accuracy, and the like of distance measurement regarding stereo photographing and distance measurement. The distance measuring apparatus includes an imaging device and a processing device. The processing device includes: a characteristic matching image generating unit that inputs two or more images including a first image obtained by photographing the subject from a first viewpoint and a second image obtained by photographing the subject from a second viewpoint among the images, and generates two or more images as characteristic matching images in which a characteristic of the first image and a characteristic of the second image are matched; and a distance measuring unit that calculates a distance to the subject by calculating a parallax based on the two or more images as the characteristic matching images.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: August 18, 2026
    Assignee: Hitachi, Ltd.
    Inventors: Rei Sakakibara, Ryota Kawamata
  • Publication number: 20260236378
    Abstract: A software verification apparatus includes a specification covering test case generation part configured to generate a test case that covers a combination of factors extracted from specification information regarding software given as a test target, a test execution part configured to execute testing of the software by using the generated test case to generate code coverage information regarding the software in the executed test case, and an additional test case generation part configured to, based on a relation between a factor or a level thereof in the test case generated by the specification covering test case generation part and the generated code coverage information, generate an additional test case that makes a code coverage higher than the test case related to the code coverage information.
    Type: Application
    Filed: February 13, 2024
    Publication date: August 13, 2026
    Applicant: HITACHI, LTD.
    Inventors: Yasufumi Suzuki, Masumi Kawakami
  • Publication number: 20260234710
    Abstract: The invention relates to a gene mutation analysis method, and a gene analysis device and a gene analysis kit based on the method. Specifically, the invention relates to a gene analysis method for detecting a target base sequence. The gene analysis method includes: a step of performing a base extension reaction using a test nucleic acid as a template by using a primer specific for the target base sequence; a step of subjecting a product of the reaction to electrophoresis or mass spectrometry; and a step of detecting a wild type and a mutant of the target base sequence in the test nucleic acid based on a difference in size of the product determined by the electrophoresis or the mass spectrometry and information on the wild type and the mutant of the target base sequence. The step of performing the base extension reaction includes performing the base extension reaction using two or more types of primers with different base lengths for a same target base sequence.
    Type: Application
    Filed: January 18, 2024
    Publication date: August 13, 2026
    Applicant: HITACHI, LTD.
    Inventors: Takahiro Ando, Takahide Yokoi, Takashi Anazawa, Chihiro Manri, Shoko Kawakami, Takeshi Ishida
  • Publication number: 20260235554
    Abstract: In order to optimize an inspection period, an inspection assistance device includes performing: Step of calculating a flaw detection probability; Step of calculating a flaw size probability distribution over time using an inspection variation that has been input via a data input unit and an initial distribution of the flaw size probability distribution; and Step of determining an inspection period in a case where an area of a region where the flaw size probability distribution over time and a fracture probability overlap with each other exceeds a preset allowable risk; and Step of outputting the determined inspection period.
    Type: Application
    Filed: April 22, 2024
    Publication date: August 13, 2026
    Applicant: Hitachi, Ltd.
    Inventors: Masanori KITAOKA, Hirohisa MIZOTA
  • Patent number: 12703237
    Abstract: An in-wheel motor with improved driving force has a simplified cooling structure for the motor and a braking device. The in-wheel motor has a motor that transmits motive power to a wheel, at least a portion of the motor being disposed inside the wheel; a first cooling part and a second cooling part that cool a stator of the motor; and a braking device that applies braking to the wheel. The braking device 25 is formed from a brake disc that rotates with the wheel and a brake caliper that induces braking by imparting friction to the brake disc. The brake caliper operates in the axial direction of the motor to induce braking in the brake disc. A portion of an axial-direction end of the brake caliper is in contact with the stator. The first cooling part and the second cooling part cool the braking device through the stator.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: August 11, 2026
    Assignee: HITACHI, LTD.
    Inventors: Tetsuya Suto, Akeshi Takahashi, Makoto Ito
  • Patent number: 12706500
    Abstract: The present invention addresses the problem of providing a winding for an electromagnetic component, a stator for a rotary electric machine, a rotary electric machine, and a wheel, which can simplify an assembly step while improving joint quality of a coil end. This winding for electromagnetic components comprises a first conductor (3) and a second conductor (4) electrically connected to the first conductor (3). The first conductor (3) and the second conductor (4) are fixed inside an electromagnetic component. At least one among the first conductor (3) and the second conductor (4) has a bent section (10). The first conductor (3) is pressed against and makes close contact with the second conductor (4) by a restoring force (12) due to residual stress of the bent section (10).
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: August 11, 2026
    Assignee: HITACHI, LTD.
    Inventors: Tetsuya Suto, Akeshi Takahashi, Makoto Ito
  • Patent number: 12703364
    Abstract: An autonomous control system includes a state amount acquiring unit that acquires the information of a control target, a control target position identification unit, a control target reaching region calculation unit, an outside information acquiring unit, a target distinguishing unit, a non-control target position identification unit, a non-control target reaching region calculation unit, an intersection region calculation unit, a control parameter setting unit, and an operation amount calculation unit that calculates a control input such that the value of an objective function J becomes a smaller value than the previous value.
    Type: Grant
    Filed: June 20, 2024
    Date of Patent: August 11, 2026
    Assignee: HITACHI, LTD.
    Inventors: Shinji Ishihara, Masaki Kanai, Teppei Saitoh, Ryu Narikawa, Kazuya Sugimoto, Tadashi Kotani
  • Publication number: 20260228264
    Abstract: A computing device includes: a processor executing a program; a storage device storing the program; and a document set communicating unit capable of accessing a document set including documents collected in advance. The storage device further stores a metadata DB specifying a corresponding relationship between each of the documents in the document set and a keyword being at least one word, and the processor performs: keyword extracting processing of extracting an extracted keyword being a word, from a user prompt being a question entered by a user; first narrowing-down processing of narrowing down the documents in the document set based on similarity between the user prompt and the documents; second narrowing-down processing of narrowing down the documents in the document set based on the extracted keyword and the metadata DB; and integrated narrowing-down processing of narrowing down the documents in the document set using the first and second narrowing-down processing.
    Type: Application
    Filed: August 28, 2025
    Publication date: August 6, 2026
    Applicant: Hitachi, Ltd.
    Inventors: Giada CONFORTOLA, Satoru WATANABE
  • Publication number: 20260228115
    Abstract: A screen interface test system comprising, an input part obtains image information of the screen to be tested, test contents and the number of operations, an operation decision section creates a prompt that requests the creation of operation contents to be performed in the test based on the received image information and test contents, and receives the operation contents from a generative AI using the created prompt, a script creation section creates a prompt requesting the creation of a script to perform the test based on the operation content received from the generative AI and the image information, and receives the script from the generative AI using the created prompt, an output section that outputs test results when the number of times the script received from the generative AI has been executed reaches the number of operations.
    Type: Application
    Filed: August 19, 2025
    Publication date: August 6, 2026
    Applicant: Hitachi, Ltd.
    Inventor: Kenji MIYASHITA
  • Patent number: 12698526
    Abstract: The present invention was made to provide novel methods for detecting DNA and devices therefor. Specifically, the present invention is a method of detecting DNA including the steps of: adding, to an oil, a fluorescently-labeled probe, a DNA intercalator, and a DNA solution containing a target DNA to produce droplets; performing PCR on the droplets; and measuring fluorescence from the fluorescently-labeled probe and fluorescence from the DNA intercalator, wherein the DNA solution has a concentration at which each droplet is produced so as to contain one or less target DNA molecule. In addition, the present invention is a DNA detection device including a droplet production unit, a thermal cycler unit, and a fluorescence detection unit which perform these steps.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: August 4, 2026
    Assignee: Hitachi, Ltd.
    Inventors: Junko Tanaka, Yoshinobu Kohara, Kunio Harada, Yu Ishige
  • Patent number: 12698097
    Abstract: Provided are a control device and a control method by which an airplane can maintain flight while maintaining a high level of safety, even if there is a conceivable abnormal event such as a communication failure or an obstacle. This control device is for an airplane, the control device being characterized by: comprising a setting unit that sets a main flight route, which is a normal flight route, and at least one secondary flight route, for each of a plurality of airplanes, and a management unit that prevents interference between a given main flight route and a given secondary flight route, and a main flight route and secondary flight route of another airplane; obtaining information about an airplane or the surrounding airspace; and when the information matches a preset prescribed condition, permitting the airplane to operate using the secondary flight route.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: August 4, 2026
    Assignee: HITACHI, LTD.
    Inventors: Taku Shimizu, Takahiro Ito, Mikio Bando, Mitsuru Matsubara
  • Patent number: 12699679
    Abstract: Systems and methods for producing domain-specific data for training generative AI models as described herein systematically acquire, validate, and fine-tune AI models using domain-specific data. In embodiments, this comprises identifying seed documents, extracting keywords, performing refined searches, and scraping relevant content. The data is then pre-processed, chunked, and indexed. Using a retrieval-augmented generation approach, the system evaluates the quality and relevance of the data, ensuring efficient computational resource use and improved model training outcomes. By leveraging expert knowledge and systematic data validation, the accuracy and reliability of domain-specific AI models is enhanced.
    Type: Grant
    Filed: September 17, 2024
    Date of Patent: August 4, 2026
    Assignee: HITACHI, LTD.
    Inventors: Aman Kumar, Lasitha Vidyaratne, Xian Yeow Lee, Shunichi Akatsuka, Dipanjan Ghosh, Ahmed Farahat, Chetan Gupta
  • Patent number: 12699937
    Abstract: A schedule change apparatus includes a change model creation section, a schedule creation section, a schedule change evaluation indicator creation section, a production simulator, and a control section. The change model creation section creates a change model estimating a portion of the schedule to be changed. The schedule creation section uses the schedule change model to generate proposed schedule changes and generate a proposed alternative schedule. The schedule change evaluation section generates a schedule change evaluation indicator indicating a best value for a proposed schedule change. The production simulator implements simulation with a simulation condition changed on a basis of schedule execution status information and equipment operation status information for the day and calculates values of the schedule change evaluation indicator for the proposed alternative schedule candidate group on a basis of the schedule change evaluation indicator already learned.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: August 4, 2026
    Assignee: Hitachi, LTD.
    Inventors: Yumiko Ishido, Yuichi Kobayashi, Yuko Yamashita
  • Patent number: 12694675
    Abstract: Systems and method described herein involve processing a video which can include executing a zero shot image labeler on the video to generate a plurality of labels corresponding to images of the video; calculating an image embedding vector for each of the labels of the images; generating context labels to replace the each of the labels corresponding to each of the images based on context labels determined for current and previous images in time by referencing a context database with the image embedding vector to determine the context labels from an inspected event graph, wherein nodes of the event graph are indicative of events that can happen during a duration of the video; and replacing the each of the plurality of labels with the generated context labels.
    Type: Grant
    Filed: December 8, 2023
    Date of Patent: July 28, 2026
    Assignee: HITACHI, LTD.
    Inventors: Sudhanshu Gaur, Joydeep Acharya
  • Patent number: 12694371
    Abstract: Systems and methods described herein aid in solving several technical problems, including predicting possible risk conditions in large, complex networked infrastructure systems, such as constantly evolving electrical grid signaling datacenter infrastructure; generating countermeasures to find optimal solutions for maintaining operational levels in response to dynamic system states and internal/external risk expressions to avoid major operational losses; and providing real-time solutions for large graph systems with numerous components.
    Type: Grant
    Filed: December 13, 2024
    Date of Patent: July 28, 2026
    Assignee: HITACHI, Ltd.
    Inventors: Malarvizhi Sankaranarayanasamy, Pegah Mavaie, Neda Zarayeneh, Omanshu Thapliyal, Prasun Singh, Ravigopal Vennelakanti