Patents Assigned to Hitachi, Ltd.
  • Publication number: 20230160593
    Abstract: An object of the invention is to control an environment such that both external constraints and human comfort are unconsciously and easily achieved. A behavioral change promoting device according to the invention is connected to a control target device configured to act on an environment of a human, an operation unit configured to receive an operation performed on the control target device by the human, and a sensor configured to acquire a control target measurement value in the environment. The behavioral change promoting device includes: a change speed control unit configured to determine, based on the received operation, a change speed at which the control target measurement value is changed in a non-comfort direction of the human.
    Type: Application
    Filed: November 25, 2022
    Publication date: May 25, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Hiroyuki OOTA, Nobuyuki SUGII, Masaaki FUJIMORI, Tomoyuki OKU
  • Patent number: 11653882
    Abstract: A sensor data correction system, includes: a standard motion mechanism unit for performing a standard motion of a wearable sensor; a determination unit calculating a relationship between first sensor data that is sensed by a first wearable sensor provided with the standard motion mechanism unit and second sensor data that is sensed by a second wearable sensor provided with the standard motion mechanism unit; and a correction unit correcting the first sensor data or the second sensor data, on the basis of the relationship that is calculated by the determination unit.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: May 23, 2023
    Assignee: HITACHI, LTD.
    Inventors: Yoshihiro Wakisaka, Nobuyuki Sugii, Noriyuki Haga, Tetsuya Ishimaru, Hiroyuki Yoshimoto
  • Patent number: 11656613
    Abstract: A grouping unit, with the use of facility order priority information and facility order rule information, determines a group to which facility orders belong, stores the group in grouping information, performs grouping of facility orders, which do not include a sequential relation in a reverse direction among facility orders, into the same group, performs grouping of facility orders, which include a sequential relation in a reverse direction among facility orders, into a different group, integrates the facility orders grouped in the same group, and sets the integrate facility order as a display facility order of the group.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: May 23, 2023
    Assignee: HITACHI, LTD.
    Inventors: Shizhen Hu, Yusuke Nishi, Daisuke Komaki
  • Patent number: 11657123
    Abstract: In example implementations described herein, person images obtained by object detection and tracking are stored in an image database. Then the system automatically samples a person image as a query of image search for past images. Filtering is performed on the search results to extract a person images having a similarity higher than certain threshold. Travel time is calculated by sorting information (camera identifier, time) attached to person images on a timeline, and the system detects gap between periods that the person appears in frame.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: May 23, 2023
    Assignee: HITACHI, LTD.
    Inventors: Yuki Watanabe, Ravigopal Vennelakanti
  • Patent number: 11659431
    Abstract: A receiver mounted on a vehicle moving on a route manages an operation profile that stores data in which a section that is a part of the route and a communication quality in the section are associated, and can receive a first traffic and a second traffic having a lower priority than the first traffic. The receiver determines a section having a good communication quality to a transmission section where the second traffic can be transmitted with reference to the operation profile, and generates control information for controlling transmission of the second traffic not to hinder transmission of the first traffic when the vehicle is located in the transmission section.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: May 23, 2023
    Assignee: Hitachi, Ltd.
    Inventors: Rintaro Katayama, Daisuke Ishii, Ryosuke Fujiwara
  • Patent number: 11656218
    Abstract: A method includes a step of introducing a solution between a substrate with a membrane in which the membrane is provided so as to close an opening and a substrate provided with an independent electrode in which the independent electrode is provided, a step of pressure bonding the substrate with the membrane and the substrate with the independent electrode through a partition wall, and a step of forming a sealed liquid tank surrounded by at least the membrane and the partition wall by the pressure bonding, and arraying of a solid-state type nanopore sequencer is simply performed.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: May 23, 2023
    Assignee: HITACHI, LTD.
    Inventors: Mayu Aoki, Itaru Yanagi, Kunio Harada, Kenichi Takeda
  • Patent number: 11659030
    Abstract: Provided is a server management system which selects an active system and a standby system by using multiple server resources managed by being divided into multiple categories in a predetermined standard and in which a service providing server is redundantly disposed, the system including: a selection information input unit acquiring selection information that is information necessary for selecting the category; a selection information storage unit storing the selection information input from the selection information input unit; a failure information storage unit storing failure information indicating a failure occurring in the category; a selection unit selecting an additional category based on an failure occurrence according to the active system and/or the standby system; and a selection result output unit outputting the category selected, in which the selection unit refers to the failure information with respect to a category satisfying a condition indicated by selection information and selects an additio
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: May 23, 2023
    Assignee: Hitachi, Ltd.
    Inventors: Toshio Nishida, Hideki Nakamura
  • Patent number: 11656787
    Abstract: A calculation system includes a variable memory storing a value indicating a state of a variable of a mixed integer quadratic programming problem; a state transition calculation block that calculates the next state of the value indicating the state of the variable; a nonlinear coefficient memory that stores a nonlinear coefficient of the state transition calculation block; a linear coefficient memory that stores a linear coefficient of the state transition calculation block; a weight input line that receives a weight signal of the state transition calculation block; and a temperature input line that receives a temperature signal of the state transition calculation block. The state transition calculation block includes a difference calculation block that calculates a difference calculation by using the weight signal, the nonlinear coefficient, and the linear coefficient. A next state determination block calculates the next state of the variable using the value read from the variable memory.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: May 23, 2023
    Assignee: HITACHI, LTD.
    Inventors: Takuya Okuyama, Masanao Yamaoka
  • Publication number: 20230155385
    Abstract: A power system stability monitoring device comprising: a simple stability calculation unit that calculates the angular velocity and internal phase angle of a generator in each fault case based on fault conditions and the system configuration of the power system; a severity indicator calculation unit that calculates a severity indicator that represents the degree of system instability based on the angular velocity and internal phase angle; a PCS power supply severe parallel-off condition extracting unit that calculates a PCS power supply parallel-off severity indicator based on a parallel-off sensitivity indicator representing a degree of influence of PCS power supply parallel-off on the degree of instability and the severity indicator, and that extracts fault cases where the parallel-off severity indicator exceeds a prescribed threshold; and a detailed stability calculation unit that performs a detailed stability calculation for each extracted fault case based on the severity indicator or parallel-off severit
    Type: Application
    Filed: June 27, 2017
    Publication date: May 18, 2023
    Applicant: HITACHI, LTD.
    Inventors: Yuki TSUJII, Masahiro WATANABE, Masachika NAKATANI, Ryousuke NAKAMURA, Masataka IMABAYASHI
  • Publication number: 20230152972
    Abstract: Deterioration of compression throughput including a decompression check after data compression is suppressed. Provided is a storage system including an interface and a controller. The controller includes a compression circuit configured to generate compressed data by compressing received data received via the interface; and a decompression circuit configured to decompress the compressed data before storing the compressed data in a storage drive to confirm data consistency. The compression circuit sequentially executes a compression task of the received data, sequentially generates packets of the compressed data, and transfers the packets to the decompression circuit. The decompression circuit decompresses the received packet in parallel with the compression task.
    Type: Application
    Filed: March 10, 2022
    Publication date: May 18, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Tomoki SHOJI, Nagamasa MIZUSHIMA
  • Publication number: 20230150553
    Abstract: Provided is an air conditioning system for a railway vehicle that is of a roof installation type. The air conditioning system includes a heat exchanger through which at least air inside the railway vehicle passes, and an ultraviolet-ray irradiation device. The heat exchanger and the ultraviolet-ray irradiation device are arranged between an upper cover curved in an upwardly protruding shape and a bottom plate. The heat exchanger has an air suction surface arranged so as to be irradiated with ultraviolet rays generated by the ultraviolet-ray irradiation device. A member that does not transmit the ultraviolet rays is arranged on a straight line interconnecting the ultraviolet-ray irradiation device and an interior space of the railway vehicle.
    Type: Application
    Filed: January 22, 2021
    Publication date: May 18, 2023
    Applicant: HITACHI, LTD.
    Inventors: Hiroshi MAITA, Hiroyuki TOYODA, Shoichi TAGUCHI, Akinori KAWASAKI, Tomoaki TAGUCHI, Daisuke AKIMARU
  • Publication number: 20230153008
    Abstract: Even without a first storage system does not have compatibility with a second storage system that is different from a default cloud storage service which can be accessed by a cloud computer service as a migration destination of a computer instance, a volume in the first storage system can be migrated to the second storage system. A system causes a migration tool of a cloud computer to migrate, from a first storage system to the cloud computer, a system volume storing an image of an OS for configuring a computer instance to be migrated, and a data volume storing data used by the OS, and creates a mapping volume, which has been mapped to the data volume migrated to the cloud computer with the migration tool, in a second storage system, and sets a path of data input/output from the computer instance to the mapping volume in the computer instance.
    Type: Application
    Filed: September 16, 2022
    Publication date: May 18, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Misato YOSHIDA, Hideo SAITO, Takaki NAKAMURA, Akira YAMAMOTO, Naruki KURATA, Takahiro YAMAMOTO
  • Publication number: 20230153007
    Abstract: A system causes a migration tool of a cloud computer to migrate, from a first storage system to the cloud computer, a system volume storing an image of an OS for configuring a computer instance to be migrated, and a data volume storing data used by the OS, and causes a second storage system to create a mapping volume, which has been mapped to the data volume migrated to the cloud computer with the migration tool, in a second storage system, and sets a path of data input/output from the computer instance to the mapping volume in the computer instance.
    Type: Application
    Filed: December 22, 2021
    Publication date: May 18, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Misato YOSHIDA, Hideo SAITO, Takaki NAKAMURA, Naruki KURATA, Takahiro YAMAMOTO
  • Publication number: 20230153009
    Abstract: A first storage system compresses data relating to read and write by a primary site and stores the data in a first physical volume. A second storage system compresses data relating to read and write by a secondary site and stores the data in a second physical volume. When performing replication for transferring the data stored in the first physical volume of the first storage system to the second storage system and storing the data in the second physical volume, the first storage system and the second storage system determine, based on a compression scheme executable by the first storage system and a compression scheme executable by the second storage system, a compression scheme to be applied to transfer target data and transfer the transfer target data compressed by the determined compression scheme.
    Type: Application
    Filed: January 20, 2023
    Publication date: May 18, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Koji HOSOGI, Akira DEGUCHI, Takaki MATSUSHITA
  • Publication number: 20230154584
    Abstract: A computer system manages a first model calculating an output value, using time-series data including a value related to an intervention carried out on a person, a second model that calculates a feature by mapping an output value from the first model onto a feature space, and a third model that outputs a predicted value of an effect of an intervention, from the feature. The time-series data includes a time at which the intervention is carried out, factors indicating a state of the person, and a type and a degree of the intervention. The computer system calculates a predicted value of the continuous intervention corresponding to the time-series data, using the first, second, and third models. The second model maps an output value from the first model onto the feature space so that a difference in distribution of data strings used in machine learning reduces in the feature space.
    Type: Application
    Filed: November 4, 2022
    Publication date: May 18, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Peifei ZHU, Masahiro OGINO, Zisheng LI
  • Patent number: 11651317
    Abstract: A work operation analysis system 11 includes: a deviant operation analysis unit 114 that analyzes a work video obtained by photographing work of a worker on a work process basis and, in the case where a deviant operation different from normal work has been detected, identifies the occurrence timing of the deviant operation; a work video accumulation unit (a normal work video accumulation unit 117 and a deviant work video accumulation unit 118) that accumulates a normal work video obtained by preliminarily photographing normal work and a deviant work video obtained when the deviant operation occurred; and a display unit (a display input device 111) that displays the normal work video and the deviant work video having predetermined time including the occurrence timing of the deviant operation.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: May 16, 2023
    Assignee: Hitachi, Ltd.
    Inventors: Hiroto Nagayoshi, Takuma Terada, Nobuhiro Kakeno, Toshihiro Yamada
  • Patent number: 11652707
    Abstract: Constructed is a network management system which manages, in an integrated manner, a first communication system, a second communication system and a third communication system passed through by packets that are sent and received via wireless communication between a first device and a second device. The network management system performs information setting to these communication systems for dividing a communication system group, which includes these communication systems, into a plurality of logical partitions each corresponding to a plurality of different service levels based on the management information of each of these communication systems. A logical partition corresponding to a service level with regard to each of the plurality of different service levels is a partition passed through by packets that are sent and received via wireless communication between the first device and the second device belonging to that service level.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: May 16, 2023
    Assignee: Hitachi, Ltd.
    Inventors: Masayuki Takase, Takaaki Suzuki, Nodoka Mimura, Junnosuke Wakai
  • Patent number: 11650988
    Abstract: The database management system (DBMS) receives a first instruction specifying anonymization rule information corresponding to a column of the relation table, among anonymization rule information that is present for each column included in the relation table and shows a plurality of generalization rules. The DBMS reads the column from the relation table in response to the first instruction, and generates a temporary result obtained by generalizing each attribute value of the column based on any of a plurality of generalization rules. The DBMS generates an aggregate result obtained by aggregating the temporary result. The DBMS generates an anonymization method including generalization information indicating a correspondence relationship of each attribute value of the column and any of the plurality of generalization rules when the aggregate result satisfies a disclosure rule. The DBMS generates anonymization information as a result of processing the relation table based on the first anonymization method.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: May 16, 2023
    Assignees: HITACHI, LTD., THE UNIVERSITY OF TOKYO
    Inventors: Yuya Isoda, Kazuhiko Mogi, Norifuml Nishikawa, Kazuo Goda, Yuto Hayamizu, Masaru Kitsuregawa
  • Patent number: 11651671
    Abstract: To be capable of efficiently transmitting appropriate information on the motion improvement to a person in motion. A motion evaluation system includes a sensor unit, an information processing device, and an information presentation device. The information processing device includes a communication device, a storage device, and an arithmetic device.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: May 16, 2023
    Assignee: Hitachi, Ltd.
    Inventors: Takuto Sato, Takehiro Niikura, Mitsuhiro Okada, Hiroki Ohashi, Takayuki Akiyama, Katsuyuki Nakamura, Mohammad Osamh Adel Al-Naser, Sheraz Ahmed
  • Publication number: 20230147970
    Abstract: A portfolio creation assistance device 100 includes: a calculation unit 104 configured to calculate a predetermined formula as an Ising model based on attribute information on each of financial instruments and information on an expected loss in each of the financial instruments associated with scenarios of event occurrence, the predetermined formula describing expected revenues and expected losses associated with the event occurrence corresponding to each of predetermined scenario groups when the predetermined scenario group is adopted to a portfolio formed by combining the financial instruments at predetermined ownership ratios. The calculation unit 104 is configured to output to a predetermined device information on the ownership ratios at which profitability obtained from the expected revenues and the expected losses as a result of the calculation is high.
    Type: Application
    Filed: December 15, 2020
    Publication date: May 11, 2023
    Applicant: HITACHI, LTD.
    Inventor: Kohei TERASAKI