Patents Assigned to Hitachi, Ltd.
  • Patent number: 11942873
    Abstract: A secondary magnetic excitation generator-motor device that inputs a first ignition pulse command to a three-level NPC power converter such that a detected excitation current value corresponds with an excitation current command value, the secondary magnetic excitation generator-motor device having a function of identifying a first phase, a second phase, or a third phase in descending order of a current absolute value, wherein a pulse switch to output an ignition pulse command to the three-level NPC power converter switches the ignition pulse command to the second ignition pulse command when a current absolute value exceeds a set overcurrent level 1, and switches the ignition pulse command to the first ignition pulse command when current absolute values for three phases are all equal to or smaller than a set overcurrent level 2.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: March 26, 2024
    Assignees: HITACHI MITSUBISHI HYDRO CORPORATION, HITACHI, LTD.
    Inventors: Akira Bando, Hironari Kawazoe, Akira Kikuchi
  • Patent number: 11941284
    Abstract: It is possible to reduce analysis cost of a management system. The management system includes a CPU and manages one or more storage devices that provide, to a higher-level device, one or more volumes for inputting and outputting data. The CPU is configured to collect performance information of the volume from the storage device at a predetermined first time interval and detect a QoS violation of the performance information of the volume at a second time interval longer than the first time interval.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: March 26, 2024
    Assignee: HITACHI, LTD.
    Inventors: Soichi Watanabe, Akira Deguchi, Kazuei Hironaka
  • Patent number: 11938983
    Abstract: A train position estimation device which calculates the position of a vehicle traveling on a predetermined path and comprises a surroundings shape measurement unit that is installed in the vehicle and measures the shape of the surroundings of the current location of the vehicle and a map storage unit for storing surroundings shape data at positions measured in advance, the train position estimation device being characterized by comprising a start position estimation unit for storing the probability of presence of the vehicle at each position; a map retrieval section determination device for outputting surroundings shape data for each position in descending order of presence probability; and a matching processing device that compares the surroundings shape data for the current location with the retrieved surroundings shape data and outputs the position for which the difference therebetween is equal to or less than a predetermined threshold value.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: March 26, 2024
    Assignee: HITACHI, LTD.
    Inventors: Yuhi Tsutsumi, Atsushi Oda, Keiichi Katsuta, Kazuo Tokuyama
  • Patent number: 11941255
    Abstract: A storage apparatus includes a plurality of storage devices, and a control unit for providing a predetermined storage area of the plurality of storage devices to the host computer as a virtual volume group including one or more virtual volumes. The control unit configures one or more data sets having one or more redundancy levels from the plurality of storage devices, provides a storage area of a storage pool including the plurality of data sets to a part of a storage area of the virtual volume, limits a combination of the storage devices configuring the data sets to be assigned to the virtual volume to a given number of combinations of two combinations or more, uniformly distributes the storage devices, and uses a given number of different combinations of the storage devices to be assigned to the virtual volume in units of the virtual volume group.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: March 26, 2024
    Assignee: HITACHI, LTD.
    Inventors: Hiroaki Akutsu, Mikio Fukuoka, Eijyu Katsuragi
  • Patent number: 11941898
    Abstract: A three-dimensional position and posture recognition device speeds estimation of a position posture and a gripping coordinate posture of a gripping target product. The device includes: a sensor unit configured to measure a distance between an image of an object and the object; and a processing unit configured to calculate an object type included in the image, read model data of each object from the external memory, and create structured model data having a resolution set for each object from the model data, generate measurement point cloud data of a plurality of resolutions from information on a distance between an image of the object and the object, perform a K neighborhood point search using the structured model data and the measurement point cloud data, and perform three-dimensional position recognition processing of the object by rotation and translation estimation regarding a point obtained from the K neighborhood point search.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: March 26, 2024
    Assignee: HITACHI, LTD.
    Inventors: Atsutake Kosuge, Takashi Oshima, Yukinori Akamine, Keisuke Yamamoto
  • Patent number: 11938346
    Abstract: A particle beam therapy apparatus has a position and posture setter that moves a movable body, that is at least one of the irradiation nozzle and the treatment table. A movement path of the movable body is determined when adapting the positional posture of the movable body from one condition among a plurality of prescribed conditions to another condition. An evaluation value is obtained for adapting the positional posture of the movable body to each of a plurality of prescribed conditions. This evaluation value is for a case of moving the movable body according to the movement path. A setting order is determined for adapting the positional posture of the movable body to each prescribed condition based on the evaluation value; and the positional posture of the movable body is adapted to each of the plurality of prescribed conditions by moving the movable body according to the determined movement path.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: March 26, 2024
    Assignee: HITACHI, LTD.
    Inventors: Hiroki Takahashi, Masanori Suzuki, Takuto Yagihashi, Takeshi Fujita, Isao Furuse, Yuko Okada
  • Publication number: 20240095064
    Abstract: A data migration apparatus and method for performing low cost data migration while preventing stoppages during migration of a job net between cloud services by acquiring an execution schedule of the job net, estimate execution time of each of the jobs, and further estimate volume copy time from a first to a second cloud service regarding each of the volumes to be used; calculate a starting time of each job on the basis of the execution schedule and time of each job; and calculate a starting time of volume copy on the basis of the calculated starting time of day of each job and the volume copy time of each volume, so that the volume copy of each volume from the first to the second cloud service will start at the starting time of the volume copy which has been calculated regarding each relevant volume.
    Type: Application
    Filed: February 17, 2023
    Publication date: March 21, 2024
    Applicant: Hitachi, Ltd.
    Inventor: Jun MIZUNO
  • Publication number: 20240095629
    Abstract: A sourcing support system comprises: a weight calculation unit configured to calculate the name of the related parts group related to the target part when target part specifying information is input; calculate the name of the related parts group; and calculate the evaluation index weights of the evaluation indexes of the supply capacity; and a score calculation unit configured to calculate a name of a candidate supplier who can purchase the target part; calculate the evaluation index score of the evaluation index of supply capacity and the evaluation index of soundness for the calculated names of the candidate suppliers; calculate the sum of the products of the evaluation index weight and the evaluation index score, with respect to the evaluation index of supply capacity as a supply capacity score; calculate the sum of the evaluation index score S of the evaluation index of soundness as the soundness score.
    Type: Application
    Filed: March 10, 2023
    Publication date: March 21, 2024
    Applicant: Hitachi, Ltd.
    Inventors: Teppei INOUE, Tazu Nomoto, Keiichi Bamoto, Yasuo Bakke
  • Patent number: 11934353
    Abstract: To reduce a calculation processing load as a whole while realizing a small amount of data loss for at least one of compression and decompression. For each of a plurality of pieces of data, a storage system determines a compression operation scale of the data based on a feature of the data, executes a lossy compression operation according to the determined compression operation scale to covert the data into encoded data, and stores the encoded data or compressed data thereof into a storage device.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: March 19, 2024
    Assignee: Hitachi, Ltd.
    Inventors: Akifumi Suzuki, Takahiro Naruko, Hiroaki Akutsu
  • Patent number: 11933993
    Abstract: An imaging optical system includes an optical component having a plurality of annular grooves formed to provide a phase to optical ray propagating an effective pupil, the phase causing the longitudinal aberration of the optical ray to alternate plural times to zigzag, and therefore, a focal-depth extended image being clear and having a large focal depth in a uniform image quality is achieved in a wide defocus range in front and back of a focal point.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: March 19, 2024
    Assignee: Hitachi, Ltd.
    Inventor: Takeshi Shimano
  • Patent number: 11933980
    Abstract: The information display apparatus configured to display video information of a virtual image on a reflecting surface of conveyance includes: a display configured to display the video information; and a virtual image optical system configured to display a virtual image at a front of the conveyance by reflecting light emitted from the display by means of the reflecting surface. The virtual image optical system includes a concave mirror and an optical element. The optical element is arranged between the display and the concave mirror, and is configured to correct distortion of the virtual image obtained so as to correspond to a viewpoint position of a driver on a basis of a shape of the concave mirror and a shape of the optical element. The information display apparatus further includes a virtual image double image conversion reducer configured to reduce double image conversion of the virtual image.
    Type: Grant
    Filed: April 26, 2023
    Date of Patent: March 19, 2024
    Assignees: MAXELL, LTD., HITACHI INDUSTRY & CONTROL SOLUTIONS, LTD.
    Inventors: Koji Hirata, Masahiko Yatsu, Toshinori Sugiyama, Kazuomi Kaneko
  • Patent number: 11934865
    Abstract: The present disclosure improves usability and stability of a control system while suppressing resource consumption. A control controller according to the present disclosure divides, using partitioning, function groups for which control is ongoing and function groups to be updated, and updates, in accordance with conditions, only the function groups to be updated, thereby updating the required control functions while continuing appropriate control processes.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: March 19, 2024
    Assignee: Hitachi, Ltd.
    Inventor: Tasuku Ishigooka
  • Patent number: 11935012
    Abstract: A construct information management system and method for enabling handling of different types of data is provided. A construct information management system 1 for managing information related to a construct includes: a data collection unit 11 configured to collect different types of source data related to different types of constructs from prescribed data sources 2A, 2B, 3A, 3B and retain the collected source data; and a data management unit 12 configured to map the collected source data onto a prescribed spatiotemporal model, acquire prescribed data associated with input data on the basis of at least mapping information on the prescribed spatiotemporal model, and process and output the acquired prescribed data.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: March 19, 2024
    Assignee: HITACHI, LTD.
    Inventors: Kouichi Tanimoto, Satoru Hori, Hirofumi Inomata
  • Publication number: 20240086846
    Abstract: An operation management system manages operations carried out by people in charge of operation regarding a common operation target, including: an operation information database storing operation information related to implementation of the operations; a start notification unit that notifies each person of the start of each operation when the start notification unit detects occurrence of a predetermined trigger event in the operation target; an operation flow construction unit that constructs an operation flow indicating the operation to be carried out by each person in relation to the trigger event, on the basis of the operation information database; an information providing unit that provides, to each person, the operation information with content suitable for the person in charge of operation on the basis of the operation flow; and a progress notification unit that notifies each person of progress of the operation.
    Type: Application
    Filed: August 30, 2021
    Publication date: March 14, 2024
    Applicant: Hitachi, Ltd.
    Inventors: Hiroki YAMAMOTO, Koji AMANO, Kazuma SAWADA, Hiroshi YAMADA, Yudai ZAMA
  • Patent number: 11926053
    Abstract: Example implementations described herein can involve a plurality of data repositories involving a data repository configured to manage data versions of data sets corresponding to robot simulation versions; a code repository configured to manage code versions of executable code corresponding to the robot simulation versions; and a robot model repository configured to manage model versions of robot models corresponding to the robot simulation version. Responsive to a request of execution of a robot simulation, fetch, from the plurality of data repositories, corresponding one or more of the data sets having a data version from the data versions that corresponds to a robot simulation version of the robot simulation from the robot simulation versions, corresponding executable code, and a corresponding robot model.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: March 12, 2024
    Assignee: HITACHI, LTD.
    Inventor: Yuan Xiao
  • Patent number: 11928618
    Abstract: The transport allocation planning system includes a transport allocation planning apparatus that creates a transport allocation plan and a user apparatus communicably connected to the transport allocation planning apparatus. The transport allocation planning apparatus transmits an inquiry related to a movement demand of the user to the user apparatus, receives an answer to the inquiry, estimates a movement demand of the user based on the answer, and creates a transport allocation plan based on the estimated movement demand. The user apparatus stores sensor information that is information indicating a current state or a past state of the user apparatus and a utility calculation model for calculating utility of the user during a movement, calculates the utility of the user by applying the sensor information to the utility calculation model, generates an answer to the inquiry based on the calculated utility, and transmits the generated answer to the transport allocation planning apparatus.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: March 12, 2024
    Assignee: HITACHI, LTD.
    Inventors: Kojin Yano, Satoru Hori, Kei Suzuki
  • Patent number: 11926845
    Abstract: A novel cell culture method for inducing differentiation of a pluripotent stem cell into trophoblast and an automatic culture apparatus therefor includes: a first step of culturing the pluripotent stem cell in a presence of a ROCK inhibitor during a first time period; a second step of culturing the pluripotent stem cell, which has been subjected to the first step, without the ROCK inhibitor during a second time period following the first time period; and a step of culturing the pluripotent stem cell, which has been subjected to the second step, in the presence of the ROCK inhibitor during a third time period following the second time period, in which the pluripotent stem cell is cultured in a state of being adhered to a cell culture substrate including a planar mesh through the first to third time periods.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: March 12, 2024
    Assignee: Hitachi, Ltd.
    Inventors: Yuki Niimi, Hiroko Hanzawa, Maiko Tanabe, Kunio Ohyama, Shizu Takeda
  • Patent number: 11928591
    Abstract: An information processing apparatus and an information processing method capable of accurately recognizing an object to be sensed are provided. One or a plurality of learning models are selected from among learning models corresponding to a plurality of categories, a priority of each of the selected learning models is set, observation data obtained by sequentially compounding pieces of sensor data applied from a sensor is analyzed using the learning model and the priority of the learning model, a setting of sensing at a next cycle is selected based on an analysis result, predetermined control processing is executed in such a manner that the sensor performs sensing at the selected setting of sensing, and the learning model corresponding to the category estimated as the category to which a current object to be sensed belongs with a highest probability is selected based on the categories to each of which the previously recognized object to be sensed belongs.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: March 12, 2024
    Assignee: Hitachi, Ltd.
    Inventors: Kanako Esaki, Tadayuki Matsumura, Hiroyuki Mizuno, Kiyoto Ito
  • Patent number: 11928524
    Abstract: The computer system includes one or more storage devices and a management computer, the management computer includes an information collection unit, an event detection unit, a plan generation unit, and a plan execution unit. The plan generation unit determines a target volume of a change process of a right of control in a plan, a processor of a change source of the right of control, and a processor of a change destination of the right of control, estimates an influence by a change process of the right of control in the plan, and the plan execution unit determines execution time of the plan based on the estimation of the influence and the operation information of the storage devices. As a result, in consideration of the influence by an ownership change process, while the influence applied to usage of a computer system is suppressed, the ownership change process is executed.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: March 12, 2024
    Assignee: Hitachi, Ltd.
    Inventors: Tsukasa Shibayama, Kazuei Hironaka, Kenta Sato
  • Patent number: 11928889
    Abstract: A photographing apparatus includes: an imaging unit which is arranged at a position opposed to a plurality of fingers to be presented, and is configured to image the plurality of fingers; and a plurality of light sources which are arranged in plurality in an array direction of the plurality of fingers, and are configured to irradiate the plurality of fingers with light from an outside of an opposing region in which the imaging unit is opposed to the plurality of fingers toward an inside of the opposing region.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: March 12, 2024
    Assignee: Hitachi, Ltd.
    Inventors: Yusuke Matsuda, Naoto Miura, Akio Nagasaka, Yo Nonomura, Keiichiro Nakazaki