Patents Assigned to Hitachi, Ltd.
  • Publication number: 20220180287
    Abstract: There is provided an optimization support apparatus enabling it to reduce the number of runs of experiments or analysis and the cost therefor.
    Type: Application
    Filed: September 23, 2021
    Publication date: June 9, 2022
    Applicant: Hitachi, Ltd.
    Inventors: Kazuo MUTO, Tatsuya HASEBE
  • Patent number: 11357094
    Abstract: A deflection electromagnet device generates a high magnetic field without increasing the size of a vacuum duct to facilitate control over a beam orbit. Magnetic flux lines from a return pole pass through the vacuum duct of a high-temperature superconductor in a vacuum heat insulation container and the charged particle beam is thus deflected, thereby generating radiation. A three-pole magnetic field is formed on the beam orbit and the charged particle beam is thus deflected by individual magnetic fields, so that radiation can be generated while the charged particle beam returns to a coaxial orbit. Therefore, an increase in size of the vacuum duct can be prevented. A shielding current is dominant and the non-uniformity of the magnetic field in a z-axis direction is prevented by disposing the high-temperature superconductor having a crystal direction c-axis orthogonal to a horizontal plane in which the charged particle beam flows.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: June 7, 2022
    Assignee: HITACHI, LTD.
    Inventors: Akihisa Miyazoe, Yukihiro Murata
  • Patent number: 11354206
    Abstract: A distributed processing method for executing partial order delivery of data on a plurality of computers connected via a network, the distributed processing method includes receiving the data by the plurality of computers. An output order in which the data is output by the partial order delivery is determined by the plurality of computers. The data to be output by dividing the data into a plurality of subsets equivalent among the plurality of computers and then stored in the output set.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: June 7, 2022
    Assignee: HITACHI, LTD.
    Inventors: Yosuke Wada, Nobuyuki Yamamoto
  • Publication number: 20220171788
    Abstract: This invention is intended to process data synchronization more efficiently. Disclosed is a data synchronization system comprising: an all records fetching unit that fetches all records of synchronization target data, i.e., data specified as a target of synchronization, from a first device that is a source of synchronization; one or more storage units to prestore synchronization destination data, namely, data that is now retained on a second device that is a destination of synchronization and store synchronization target data fetched by the all records fetching unit; and a difference extraction unit that identifies difference to be reflected in the data on the second device by using the synchronization destination data and the synchronization target data, makes identified difference reflected in the data on the second device, and, after the reflection, updates the synchronization destination data based on the synchronization target data.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 2, 2022
    Applicant: Hitachi, Ltd.
    Inventors: Daisuke ITO, Shinichiro SAITO
  • Publication number: 20220173964
    Abstract: An information setting system includes a representative setting device and a remote setting device in a wireless communication facility. The remote setting device manages remote management information including information indicating a correspondence relationship among a device identifier, a device name, and a setting object. The representative setting device acquires a device identifier, allocates a network identifier to the device, stores the acquired device identifier and the allocated network identifier, and transmits the device identifier to the remote setting device. The remote setting device specifies a device name and a setting object from the remote management information based on the device identifier, and transmits the device name and the setting object to the representative setting device.
    Type: Application
    Filed: November 8, 2021
    Publication date: June 2, 2022
    Applicant: Hitachi, Ltd.
    Inventors: Tomoyuki IIJIMA, Masayuki TAKASE, Takashi YOKOYAMA, Masato HIMENO
  • Publication number: 20220172236
    Abstract: A vehicle allocation system includes a processor, a recording unit, and a display apparatus. The recording unit includes a vehicle information recording unit which records information regarding delivery vehicles, a cargo information recording unit which records information regarding new delivery packages, and an index calculation processing unit which calculates a plurality of indexes and executes display of information based on the calculated indexes. The processor reads the index calculation processing unit to calculate for each delivery vehicle an index pertaining to movement distance, an index pertaining to profit, and an index pertaining to a ratio of loaded travel distance to total travel distance, uses weights on the calculated indexes to calculate an overall index for each delivery vehicle, and causes display of information regarding the indexes and information in which the overall indexes for the delivery vehicles are lined up in descending order.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 2, 2022
    Applicant: Hitachi, Ltd.
    Inventors: Manabu HASEGAWA, Tadayoshi KOSAKA, Naoki FURUYA, Kazuya UYAMA
  • Patent number: 11346346
    Abstract: The present invention effectively cools air in a compression process at a high stage when an oil is supplied at the same pressure at a low stage and the high stage. Provided is a liquid-cooled type compressor including: a liquid-cooled type compressor body; at least one first nozzle; and at least one second nozzle, the at least one first nozzle and the at least one second nozzle each having a plurality of injection ports per nozzle and supplying a refrigerant through the injection ports into an inside of the compressor body, the second nozzle having the injection ports each having a diameter larger than a diameter of each of the injection ports of the first nozzle.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: May 31, 2022
    Assignee: Hitachi, Ltd.
    Inventor: Masanao Kotani
  • Patent number: 11347672
    Abstract: A storage apparatus in which a controller reads out a port status of a switch in a short period of time is disclosed. The storage apparatus includes a switch and a plurality of storage controllers configured to communicate with each other through the switch. The switch includes a switch processor, a plurality of data ports, a switch integrated circuit, a memory, and a management interface. One of the plurality of data ports and a management port of the management interface are connected to each other. The switch processor stores a status of the plurality of data ports acquired from the switch integrated circuit into the memory. The plurality of storage controllers access the management interface through the plurality of data ports and the management port and receive the statuses of the plurality of data ports stored in the memory from the management interface.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: May 31, 2022
    Assignee: HITACHI, LTD.
    Inventors: Katsuya Tanaka, Hirotoshi Akaike
  • Patent number: 11346748
    Abstract: Example implementations described herein are directed to systems and methods for extracting signal in presence of strong noise for industrial Internet of Things (IoT) system especially for monitoring systems of consumable items such as lathe machines, coolers and so on. Example implementations can utilize a sawtooth mother Wavelet instead of usual wavelet analysis to cleanse the incoming sensor data, thereby allowing for the converting sensor data to feature values despite having heavy noise interference.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: May 31, 2022
    Assignee: Hitachi, Ltd
    Inventors: Daisuke Maeda, Sudhanshu Gaur
  • Patent number: 11349705
    Abstract: A route failure and a device failure are detected in a short time without erroneous recognition. A multiplexing system includes: a first system having a pair of processing devices forming a pair; a second system having a pair of processing devices forming a pair that are different from the first system; each processing device of the first system and the second system includes a survival monitoring unit configured to monitor a failure of the each processing device or the each LAN based on a device time-out for confirming survival of the each processing device and a route time-out for confirming survival of the each LAN set to be longer than the device time-out.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: May 31, 2022
    Assignee: HITACHI, LTD.
    Inventors: Hidehiro Kawai, Hideki Osonoi, Hidenori Omiya
  • Patent number: 11347432
    Abstract: To improve performance of a storage system. The storage system includes a plurality of storage nodes that communicate via a network. Each of the plurality of storage nodes includes one or more controllers. At least one controller in the controllers specifies at least two controllers that allocate a cache sub-area where write data is stored based on a controller that receives the write data from a host and a controller that processes the write date, and the cache sub-area is allocated in the specified controllers.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: May 31, 2022
    Assignee: HITACHI, LTD.
    Inventors: Masahiro Tsuruya, Tomohiro Yoshihara, Ryosuke Tatsumi, Shinsuke Izawa
  • Patent number: 11349494
    Abstract: A compression engine calculates replacement CRC codes, in predetermined data lengths, for DIF-in cleartext data including cleartext data and multiple CRC codes based on the cleartext data. The compression engine generates headered compressed-text data in which a header including the replacement CRC codes is added to compressed-text data in which the cleartext data is compressed, and generates code-in compressed-text data by calculating multiple CRC codes based on the headered compressed-text data to add the calculated CRC codes to the headered compressed-text data.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: May 31, 2022
    Assignee: HITACHI, LTD.
    Inventors: Takeshi Hirao, Yuusaku Kiyota, Shoji Kato
  • Patent number: 11349311
    Abstract: A voltage stability monitoring device and a method capable of obtaining information of voltage stability that can be served to practical use within a range of assumed conditions during a predetermined monitoring period are provided. The present invention provides a voltage stability monitoring device for estimating a voltage stability by using a voltage stability curve representing the voltage stability in an electric power system, including a voltage stability limit prediction unit for predicting a voltage stability limit, a voltage stability calculation condition determination unit for determining voltage stability calculation conditions by using a prediction result of voltage stability limit, a voltage stability curve calculation unit for calculating the voltage stability curve using a result of the voltage stability calculation condition determination, and a voltage stability margin calculation unit for calculating a voltage stability margin using a calculation result of the voltage stability curve.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: May 31, 2022
    Assignee: Hitachi, Ltd.
    Inventors: Eisuke Kuroda, Masahiro Watanabe, Masahiro Yatsu
  • Patent number: 11349000
    Abstract: An n type semiconductor layer is formed over an n type semiconductor substrate made of silicon carbide, a p type impurity region is formed in the semiconductor layer, and an n type drain region and an n type source region are formed in the impurity region. A field insulating film having an opening that selectively opens a part of the impurity region located between the drain and source regions is formed over the impurity region and the drain and source regions. A gate insulating film is formed over the impurity region in the opening, and a gate electrode is formed on the gate insulating film. Here, a field relaxation layer having an impurity concentration higher than that of the impurity region is formed in at least a part of the impurity region located between the drain and source regions in plan view and located below the field insulating film.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: May 31, 2022
    Assignee: HITACHI, LTD.
    Inventors: Masahiro Masunaga, Shintaroh Sato, Akio Shima, Ryo Kuwana, Isao Hara
  • Publication number: 20220164438
    Abstract: Disclosed is an incident scenario generation device for generating an incident scenario that indicates how an attack progresses in relation to an information system. The incident scenario generation device includes an attack parts database for storing attack parts information and a system configuration database for storing system configuration information about the information system. The incident scenario generation device generates the incident scenario according to the attack parts information stored in the attack parts database and to the system configuration information stored in the system configuration database.
    Type: Application
    Filed: June 16, 2020
    Publication date: May 26, 2022
    Applicant: Hitachi, Ltd.
    Inventors: Tetsuro KITO, Tomohiro SHIGEMOTO
  • Publication number: 20220166337
    Abstract: A semiconductor device includes: a semiconductor element that converts DC electric power into AC electric power; a DC terminal that transmits DC electric power; an AC terminal that transmits AC electric power; a sealing member that seals the semiconductor element, at least a part of the DC terminal, and at least a part of the AC terminal; and at least one floating terminal that is arranged between the DC terminal and the AC terminal.
    Type: Application
    Filed: April 1, 2020
    Publication date: May 26, 2022
    Applicant: HITACHI, LTD.
    Inventors: Eiichi IDE, Junpei KUSUKAWA, Nobutake TSUYUNO
  • Publication number: 20220163246
    Abstract: There is provided a maintenance recommendation system that creates an estimation model of failure modes of a new model of a device only from an occurrence probability of a failure mode. Based on an estimation model for an old model, the occurrence probability of a failure mode where a component is changed from the old model is updated only on a spot of a component change, and this creates an estimation model of failure modes intended for a new model newly commercially available. Thus, the attachment of the inspection result and the failure mode of a faulty facility is learned, an estimation model of failure modes is created to support facility maintenance services for a new model newly commercially available having a small amount of data of inspection results in failure daily reports for difficulty in learning.
    Type: Application
    Filed: September 27, 2021
    Publication date: May 26, 2022
    Applicant: Hitachi, Ltd.
    Inventors: Takayuki UCHIDA, Kazuki HORIWAKI, Shuntaro HITOMI, Yasuharu NAMBA
  • Patent number: 11342750
    Abstract: A power demand/supply adjustment power procurement plan support device supports a power system through a power transaction in the power market and has an added power transmission capacity analysis means and a target power transmittable capacity determination means. The added power transmission capacity analysis means obtains: actual power supply data including a power supply having supplied power to the power system and the actual value of a power supply amount; an actual power system stabilization data including a power supply performing power supply restriction for power system stabilization, an electric control amount or a customer facility performing a load restriction, and the actual value of a load control amount; and an actual power demand/supply adjustment power procurement data including a procurement amount of the power demand/supply adjustment power of a power supply participating in the power market and the actual value of the total procurement cost.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: May 24, 2022
    Assignee: HITACHI, LTD.
    Inventors: Toshiyuki Miyake, Kenichiro Yamane, Masahiro Yatsu, Taichiro Kawahara, Toshiyuki Sawa
  • Patent number: 11340273
    Abstract: To improve determination accuracy of determining whether a user is present in a house. A presence-in-house determination system 1 includes: a first presence-in-house determination unit 111 configured to determine whether the user is present in the house based on a change over time in electric power consumption of the house of the user; second presence-in-house determination units 112A and 112B configured to determine whether the user is present in the house based on an operation state of at least one of electric appliances 20A and 20B provided in the house; and a comprehensive determination unit 114 configured to determine whether the user is present in the house based on a determination result of the first presence-in-house determination unit and a determination result of the second presence-in-house determination unit.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: May 24, 2022
    Assignee: HITACHI, LTD.
    Inventors: Akihito Akai, Tomoya Fujiwara, Yoshihiro Machida, Yoshiki Matsuura
  • Patent number: 11341292
    Abstract: A production plan supporting apparatus and method capable of effectively supporting making of a production plan for a product whose production process has a branch(es). According to the production plan supporting apparatus and method when sequentially inputting a work(s) on a production unit basis to a production process in accordance with a predetermined input plan, first models regarding each of which probability of existence of the work in each time slot of each process is calculated are generated for respective production units, and a second model in which all the generated first models for the respective production units are stacked over one another is generated; and the time slot of the process which will become a bottleneck is identified and displayed on the basis of the second model.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: May 24, 2022
    Assignee: Hitachi, Ltd.
    Inventors: Satoshi Fukuda, Yuuichi Suginishi