Patents Assigned to Hitachi, Ltd.
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Publication number: 20260351486Abstract: This electric device comprises electrical components (1, 60), an electrical component support unit (21), and an outside frame (90). An interior space (92) is formed between the electrical component support unit and the outside frame, the electrical components are installed in the internal space, and gas is enclosed in the internal space at a water vapor pressure of 0.60 Pa or less. In electric devices in which electrical components such as electrolytic capacitors (60), etc., are disposed in a closed space, this makes it possible to prevent the occurrence of condensation on the wall surfaces, etc., of the closed space, and to prevent damage to the electrical components due to air pressure.Type: ApplicationFiled: August 9, 2023Publication date: November 5, 2026Applicant: Hitachi, Ltd.Inventors: Yuuichiro YOSHITAKE, Junpei KUSUKAWA, Hiroshi KAMIZUMA, Tetsuya KAWASHIMA, Kinya NAKATSU
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Patent number: 12782401Abstract: An aggregator system outputting a control instruction relating to electric power to a consumer consuming electric power, in accordance with a variation of a power generation amount of a power supply company, the aggregator system predicting adjustment power that is an adjustable amount of received power according to each of facilities of the consumer and outputting a control instruction for adjusting received power to each of the facilities on the basis of the predicted adjustment power of each of the facilities and a DR instruction that is a demand/supply adjustment instruction for the electric power from the power supply company.Type: GrantFiled: June 9, 2022Date of Patent: November 3, 2026Assignee: Hitachi, Ltd.Inventors: Tomoya Yamasaki, Noriyuki Takeshita, Hiroshi Yunoue, Shinpei Ohyama
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Patent number: 12783322Abstract: A cluster includes a plurality of nodes including a storage unit that stores a program to be executed in response to a request from a client terminal connected to a network, and a processor that executes the program, in which, in a case where at least one substitute program stored in a substitute cluster is executed as a substitute for at least one target program stored in the cluster, when a request to the target program transmitted from the client terminal is acquired, a request transfer process of transferring the request to the target program to the substitute cluster is executed such that the substitute program is executed in response to the request to the target program.Type: GrantFiled: September 7, 2023Date of Patent: November 3, 2026Assignee: Hitachi, Ltd.Inventor: Takayuki Kinjo
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Patent number: 12786173Abstract: Disclosed is an information sharing system that includes a concealment processing section, an analysis section, and an information transmission section. The concealment processing section conceals information collected from any one or more of multiple organizations in accordance with the level of credibility between the organizations. The analysis section makes an analysis by using the information concealed by the concealment processing section and an analysis logic collected from any one or more of the multiple organizations. The information transmission section transmits the result of analysis by the analysis section to any one or more of the multiple organizations, and allows each organization to share the result of analysis.Type: GrantFiled: December 28, 2021Date of Patent: November 3, 2026Assignee: Hitachi, Ltd.Inventors: Yuki Ueki, Tomohiro Shigemoto, Nobutaka Kawaguchi, Katsuya Nishijima
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Patent number: 12780267Abstract: Provided are a straddle type monorail vehicle in which a center pin provided in a vehicle body can be mechanically fastened to a center pin holding portion provided in a bogie via a cushioning rubber with a small number of work steps, and an assembly method thereof. The center pin has a hollow shape in which both ends are opened, and includes a large cylindrical portion on a bolster beam side and a small cylindrical portion that is connected to the large cylindrical portion and that is coaxial with the large cylindrical portion, the center pin holding portion is elastically supported by a bogie frame forming a frame body of the bogie, and has a hollow portion into which the small cylindrical portion of the center pin is inserted. A fixing metal fitting has a cylindrical rod shape inserted through the center pin that includes first and second threaded portions.Type: GrantFiled: September 22, 2023Date of Patent: November 3, 2026Assignee: HITACHI, LTD.Inventors: Shuji Hirano, Kazuya Furuta, Yoshiyuki Hagihara, Meichuan Chen
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Patent number: 12786390Abstract: Computer system configured to: calculate, by using object type definition data defining an object type as a detection target in a space defined by a dimension of processing data extracted in a plane of the dimension from multidimensional data as a compression target, a first feature of the object type; acquire the processing data and calculate a second feature of the processing data; estimate an important region of the space of the processing data, in which the object type exists, by using the first feature and the second feature; generate compression level information including a parameter for determining a data amount of each of the important region and a region other than the important region; and generate compressed data by converting the processing data to a data format of which compatibility is ensured with a transmission destination of the compressed data by lossy compression using the compression level information.Type: GrantFiled: March 24, 2025Date of Patent: November 3, 2026Assignee: Hitachi, Ltd.Inventors: Takahiro Naruko, Hiroaki Akutsu
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Patent number: 12781675Abstract: There is provided an engine power generation system control device that reduces emission of a harmful substance contained in an exhaust gas to the outside by performing prompt activation of an exhaust purification catalyst and prompt warmed-up of an engine in a power generation system including an engine enabling an RE fuel and a hydrocarbon-based fuel to be supplied and performing co-combustion. A hydrocarbon-based fuel supply amount or a hydrogen supply amount to the engine is controlled based on a catalyst active state detected by a catalyst active state detecting unit and a warmed-up state of the engine detected by an engine warmed-up state detecting unit.Type: GrantFiled: October 6, 2023Date of Patent: November 3, 2026Assignee: Hitachi, Ltd.Inventors: Ryutaro Koiwai, Atsushi Shimada
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Patent number: 12780600Abstract: An elevator includes a plurality of elevator units each including a car and a unit control section that controls operation of the car; and an operation management device that manages operation of the plurality of elevator units, in which, in a case where it is determined that any of the elevator units has left any of passengers behind, the operation management device additionally and immediately dispatches the car of another elevator unit to a floor where any of passengers has been left behind.Type: GrantFiled: November 4, 2020Date of Patent: November 3, 2026Assignee: Hitachi, Ltd.Inventors: Taichi Saito, Tomoaki Maehara, Takahiro Hatori, Yuki Saito, Masaki Miyamae
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Patent number: 12783927Abstract: One preferred aspect of the invention is a quantum computer of a semiconductor, including: a semiconductor crystalline substrate; a gate electrode array structure formed on a surface of the semiconductor crystalline substrate; and a reservoir unit that is a carrier supply unit, in which a classic potential barrier is formed in the semiconductor crystalline substrate by controlling an applied voltage to the gate electrode array structure, and a charge supplied from the reservoir unit is transported into the classic potential barrier.Type: GrantFiled: February 28, 2023Date of Patent: November 3, 2026Assignee: HITACHI, LTD.Inventors: Takeru Utsugi, Noriyuki Lee, Ryuta Tsuchiya, Digh Hisamoto, Toshiyuki Mine
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Patent number: 12784458Abstract: Systems and methods described herein involve automated aerial surveillance of assets with dynamic flight path optimization and comprise obtaining a satellite image of a monitored area, defining a region of interest (ROI), computing an initial flight path for a drone to capture top-down images, stitching the images to generate a panoramic map, analyzing the map using object detection algorithms to identify areas of interest containing assets within the ROI, generating a refined flight path that prioritizes these areas, processing angled images to identify asset markers using detection algorithms, applying optical character recognition (OCR) to extract text-based identifiers, detecting visual markers, applying localization methods to obtain real-world coordinates, implementing manual search mechanisms when markers are unidentifiable, and outputting asset locations.Type: GrantFiled: September 2, 2025Date of Patent: November 3, 2026Assignee: HITACHI, LTD.Inventors: Huimin Zhuge, Gregory Sin, Chandrasekar Venkatraman, Song Wang, Chetan Gupta
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Publication number: 20260339649Abstract: An information processing apparatus, which includes a processor that executes a program, and a storage device that stores the program, stores in the storage device an event detection rule for detecting an event based on a combination of satisfactions of conditions, and executes an identifying process of identifying an update candidate by applying a situation of a monitoring target to the event detection rule, the update candidate being a combination of an update target whose condition has not been satisfied in the event detection rule and update information that has made the condition of the update target in the situation unsatisfied, and a calculation process of calculating a priority for each update candidate identified through the identifying process.Type: ApplicationFiled: February 17, 2026Publication date: October 29, 2026Applicant: Hitachi, Ltd.Inventors: Soichiro Matsuo, Shintaro Suzuki, Akihiko Hyodo
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Publication number: 20260338729Abstract: Sensing of plural types of gases present in the atmosphere is realized at a low cost. A gas sensor chip has a semiconductor substrate and a plurality of gas detection material layers formed at respectively different positions on the semiconductor substrate. The gas detection material layers each have a metal oxide layer and a catalyst metal layer formed over the metal oxide layer and have a structure in which the catalyst metal layer is exposed to the atmosphere. The gas detection material layers are different from each other in the combination of the type, film thickness, and crystal particle size of the material of the metal oxide layer and the type, film thickness, and crystal particle size of the material of the catalyst metal layer.Type: ApplicationFiled: September 8, 2023Publication date: October 29, 2026Applicant: Hitachi, Ltd.Inventors: Yoshitaka SASAGO, Hiroyuki UCHIYAMA, Yuan BU, Takayasu NORIMATSU
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Publication number: 20260339676Abstract: A software configuration management data creation support apparatus is an apparatus that supports creation of software configuration management data for managing a software configuration of an information system including a plurality of information devices, and includes: a design information collection unit that collects design information of the information system; a design information extraction unit that extracts a predetermined word/phrase from the design information; a class candidate selection unit that compares the word/phrase extracted by the design information extraction unit with attribute information set in advance according to a functional configuration of the information system, and selects, on the basis of a result of the comparison, a class candidate corresponding to a concrete class or an abstract class in a case where functional configurations taken charge of by the information devices in the information system are represented in a tiered structure.Type: ApplicationFiled: October 25, 2023Publication date: October 29, 2026Applicant: HITACHI, LTD.Inventors: Mutsumi Shimoda, Hiroki Yamazaki, Yoko Hashimoto, Momoka Kasuya
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Publication number: 20260339825Abstract: Test cases are efficiently generated from a software specification written in natural language. A test case generation apparatus extracts specification information related to system development from the specification, detects ambiguous expressions in the specification based on the specification information and an ambiguous expression knowledge database, and supplements the ambiguous expressions using the specification or a similar specification to generate an extended specification. The apparatus constructs conditional-branch structure information from the detected ambiguous expressions, associates descriptions in the specification and the extended specification with nodes of the conditional-branch structure, expands the conditional-branch structure into branch patterns to generate processing route information with assigned route identifiers, and generates test case information including input conditions and expected outputs based on the processing route information.Type: ApplicationFiled: February 18, 2026Publication date: October 29, 2026Applicant: Hitachi, Ltd.Inventors: Shinya FURUKAWA, Yusuke ARAI, Shinji ITOH
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Publication number: 20260338703Abstract: A computer comprises a processor and determines the inspection conditions of an inspection system with respect to an inspection object, the processor is configured to: receive at least two element evaluation indexes and a user request pertaining to a target of the element evaluation indexes, the element evaluation indexes including a rate of inspection correct answers, a misinformation rate, an inspection time, inspection reproducibility, a training time, the device cost, the operation cost, the device robustness, versatility of inspection, the lifespan, ease of assembly, accuracy of required assembly, robustness to environment, ease of maintenance, clarity of the grounds of determination of recognition processing, or ease of recognition of detection points; generate evaluation indexes based on the evaluation indexes for the inspection on the basis of the user request; evaluate the inspection result in the plurality of inspection conditions; and determine suitable inspection conditions from the of inspectionType: ApplicationFiled: September 20, 2023Publication date: October 29, 2026Applicant: Hitachi, Ltd.Inventors: Hiroaki KASAI, Atsushi MIYAMOTO, Mayuka OSAKI
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Patent number: 12775894Abstract: A creation support device configured to implement generative AI, transmits, to the computer, a creation request of an automation program for automating a procedure of an operation target, receives an answer to the creation request from the computer, transmits, to the computer, a specification request for specifying the operation target and a command for executing the procedure from a program code in the answer to the creation request, receives an answer to the specification request from the computer, transmits, to the computer, a search request of an output result of data acquired from the command in the answer to the specification request, receives an answer to the search request from the computer, generates a re-creation request for re-creating the automation program using the output result in the answer to the search request, transmits the re-creation request to the computer, and receives an answer to the re-creation request from the computer.Type: GrantFiled: August 23, 2024Date of Patent: October 27, 2026Assignee: Hitachi, Ltd.Inventors: Kiyomi Wada, Mineyoshi Masuda
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Patent number: 12775885Abstract: Example implementations described herein are directed to systems and methods for predicting if a conjunction of multiple events will occur within a certain time. It relies on an approximate decomposition into subproblems and a search among the possible decompositions and hyperparameters for the best model. When the conjunction is rare, the method mitigates the problem of data imbalance by estimating events that are less rare.Type: GrantFiled: December 3, 2021Date of Patent: October 27, 2026Assignee: HITACHI, LTD.Inventors: Hsiu-Khuern Tang, Haiyan Wang, Chetan Gupta
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Patent number: 12775500Abstract: To reduce a power surplus of fluctuating renewable energy. Data center candidate management information indicates a characteristic of renewable energy supplied to each data center candidate. Application program type candidate management information indicates a characteristic of each application program type candidate. The system determines, with reference to the data center candidate management information and the application program type candidate management information, a plurality of combinations each including one or more data center candidates and one or more application program type candidates, determines a score of each combination based on a characteristic of renewable energy supplied to each of the one or more data center candidates and a characteristic of each of the one or more application program type candidates, and selects, based on the score, a combination to be presented.Type: GrantFiled: September 12, 2023Date of Patent: October 27, 2026Assignee: Hitachi, Ltd.Inventors: Yoji Ozawa, Satoshi Kaneko, Hiro Tanaka, Yasutaka Kono
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Publication number: 20260327812Abstract: A water electrolysis system includes a plurality of water electrolysis stacks connected in series to a DC power supply, a plurality of gas storage tanks (e.g., a hydrogen gas tank, a low-pressure hydrogen gas tank) for storing a gas generated in the water electrolysis stacks, a first gas pressure adjustment mechanism (e.g., a hydrogen gas tank pressure adjustment valve) for adjusting pressure of the gas generated in the entire plurality of water electrolysis stacks, a plurality of second gas pressure adjustment mechanisms (e.g., a water electrolysis stack hydrogen gas pressure adjustment valve, a water electrolysis stack low-pressure hydrogen gas pressure adjustment valve) for adjusting pressure of a gas generated in each of the water electrolysis stacks, and a control device for controlling the first gas pressure adjustment mechanism and the second gas pressure adjustment mechanism.Type: ApplicationFiled: September 8, 2023Publication date: October 22, 2026Applicant: Hitachi, Ltd.Inventors: Takaaki MIZUKAMI, Masatoshi SUGIMASA, Shinji FUJITA
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Publication number: 20260327829Abstract: A serially connected stack group is configured by serially connecting a plurality of water electrolysis stacks and at least one overcurrent interruption means, a series-parallel stack unit is configured by parallelly connecting at least three serially connected stack groups, and a water electrolysis stack group configured by serially connecting a plurality of the series-parallel stack units, is connected to a DC power supply.Type: ApplicationFiled: October 6, 2023Publication date: October 22, 2026Applicant: Hitachi, Ltd.Inventors: Akira GUNJI, Takaaki MIZUKAMI, Masatoshi SUGIMASA