Patents Assigned to Hitachi
  • Patent number: 11994529
    Abstract: The object of the invention is to avoid a decrease in dispensing accuracy of a sample, a reagent, or the like as a temperature changes. In an automatic analyzer, a dispensing nozzle sucks the sample from a sample container holding the sample and discharges the sample to a reaction container. A syringe pump controls an amount of change in a volume of water. A first pipe connects the dispensing nozzle and the syringe pump. An electromagnetic valve flows or stops the water. A second pipe connects the electromagnetic valve and the syringe pump. A branch pipe branches the water. A third pipe connects the electromagnetic valve and the branch pipe. A case accommodates at least the syringe pump, the first pipe, the electromagnetic valve, the second pipe, the branch pipe, and the third pipe. Further, the third pipe includes a heat exchange unit that performs heat exchange of the water.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: May 28, 2024
    Assignee: Hitachi High-Tech Corporation
    Inventors: Shinji Azuma, Isao Yamazaki, Masashi Fukaya, Takumi Ito
  • Patent number: 11995835
    Abstract: A pixel-level object detection system that detects an object at a pixel level, includes: an imaging unit that acquires an inference image that is an image that captures a detection target; an area detection unit that detects an area including a detection target from the inference image; a detail detection unit that detects the detection target using only local information from the inference image; and a result integration processing unit that integrates an output of the area detection unit with an output of the detail detection unit to output a segmentation map indicating, as a probability map, which pixel in the image corresponds to the detection object.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: May 28, 2024
    Assignee: HITACHI SYSTEMS, LTD.
    Inventors: Yuki Inoue, Hiroto Nagayoshi, Masato Nakamura
  • Patent number: 11996696
    Abstract: A power supporting arrangement for a power grid includes a first and a second voltage source converter with an AC side and a DC side. A DC link interconnects the DC sides of the voltage source converters. A first switching arrangement includes a number of settable positions. The AC side of the second voltage source converter is connected to the power grid and the first switching arrangement is connected between a first synchronous machine. The AC side of the first voltage source converter and the power grid and operable to selectively connect the first synchronous machine to the power grid or to the AC side of the first voltage source converter.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: May 28, 2024
    Assignee: HITACHI ENERGY, LTD
    Inventors: Lexuan Meng, Jean-Philippe Hasler, Gunnar Ingeström, Jan Kheir, Tong Wu, Theodore Soong
  • Patent number: 11994448
    Abstract: The present invention is directed to a leakage oil detection device for detecting leakage oil in an oil filled apparatus including: a light source configured to irradiate the apparatus; an imaging device configured to capture an image of the apparatus; a control device configured to control operations of the light source and the imaging device; a storage device configured to store a captured image; an image processing device configured to process the stored image; and a display device configured to display a processing result. The light source and the imaging device are arranged to capture specular reflection light from a surface of the apparatus as a target object. The image processing device recognizes a brightest portion and an adjacent dark portion on the image as leakage oil adhesion portions when a three-layer structure of luminance having bright portions having different luminances and a dark portion is observed in the image.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: May 28, 2024
    Assignee: HITACHI, LTD.
    Inventors: Li Lu, Satoshi Ichimura, Akira Nishimizu, Akira Yamagishi
  • Patent number: 11996693
    Abstract: A support system for an AC power transmission system, comprising an energy storage arrangement comprising a plurality of storage units and a main controller configured to control the operation of the energy storage arrangement. Each storage unit comprises at least three control signal connections and is configured to receive a control signal from at least three storage entities via said control signal connections, wherein each of the storage entities is either the main controller or a storage unit controller of an adjacent storage unit. The storage units are arranged to forward a control signal received via a first one of said control signal connections to all adjacent storage units that are connected via the remaining ones of said control signal connections.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: May 28, 2024
    Assignee: HITACHI ENERGY LTD
    Inventors: Per Karreby, Daniel Hallmans, Lexuan Meng, Maria Werlefors
  • Patent number: 11995586
    Abstract: The time required to modify order allocation rules is shortened in a production planning system. A performance rule is generated, in which a manufacturing condition is set as the input and a manufacturing facility is set as the output, based on allocation performance data representing a performance of allocating the manufacturing facility for the manufacturing condition. A comparison table is generated representing a difference between the performance rule and an existing rule in which the manufacturing condition is set as the input and the manufacturing facility is set as the output. A modification rule is generated in which the existing rule is modified according to a user operation on the comparison table; and an evaluation index is calculated for production plan data corresponding to each of the existing rule and the modification rule. The rule modification unit generates the comparison table including a modification plan for the existing rule.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: May 28, 2024
    Assignee: HITACHI, LTD.
    Inventors: Shintaro Urabe, Yuuichi Suginishi, Akira Tada, Satoshi Fukuda
  • Patent number: 11997072
    Abstract: A communication monitoring and coping apparatus includes: a processor; a memory; an unauthorized communication detection unit that detects unauthorized communication in a network in which a plurality of devices are connected to communicate with each other and identifies a device involved in the detected unauthorized communication; a coping process determination unit that searches for another device that substitutes for the identified device and generates coping information, which is information of a process performed in place of the identified device, based on information on the network and information on each of processes performed by the plurality of devices; and a coping information transmission unit that transmits the generated coping information to an information processing apparatus that causes the other device to execute the process indicated by the coping information.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: May 28, 2024
    Assignee: HITACHI, LTD.
    Inventor: Mayuko Tanaka
  • Patent number: 11995202
    Abstract: A computer system including a plurality of systems, in which the plurality of systems include a plurality of provision systems that provide data and a platform system that controls access to the data, the platform system receives, from a user, an acquisition request including a data acquisition condition, a quality condition, and a provider condition related to providers of data provided by the provision systems, and in a case where data satisfying the data acquisition condition satisfies the quality condition and a provider of the data satisfying the data acquisition condition satisfies the provider condition, the platform system performs control such that the user is allowed to access the data satisfying the data acquisition condition.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: May 28, 2024
    Assignee: HITACHI, LTD.
    Inventors: Shunji Kawamura, Masaaki Tanizaki, Tetsuhiro Hatogai
  • Patent number: 11994965
    Abstract: Failover is performed appropriately when a failure occurs in a physical server. In a plurality of physical servers of a storage system, one or more protocol VMs and one or more file system VMs are created. The protocol VMs perform processing related to a protocol for a file storage with a client via a front-end network. The file system VMs perform processing related to management of files in the file storage. A first physical server causes, when a failure occurs in a second physical server, a physical server other than the second physical server to operate a file system VM to be operated in place of the file system VM of the second physical server, and controls the protocol VM of the physical server other than the second physical server to perform processing to be performed by the protocol VM of the second physical server.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: May 28, 2024
    Assignee: HITACHI, LTD.
    Inventor: Hitoshi Ukawa
  • Publication number: 20240168859
    Abstract: A software performance verification system extracts a partial code as part of a code of a program configuring software, generates a feature vector based on the partial code, and generates, as a verification result of the partial code, information based on output obtained from a performance verification model through input of the partial code as a verification target to the performance verification model that is a machine learning model having been trained by use of learning data that includes the feature vector of the partial code for learning and performance information indicative of the performance of software implemented on the basis of the partial code. The software performance verification system generates, for example, a feature vector having metrics values acquired from the partial code as the elements of the feature vector. The performance verification model outputs, for example, the probability of there being a problem with a process to be implemented on the basis of the partial code.
    Type: Application
    Filed: February 14, 2022
    Publication date: May 23, 2024
    Applicant: Hitachi, Ltd.
    Inventors: Menglong YANG, Kyohei OYAMA, Daisuke SHIMBARA
  • Publication number: 20240166195
    Abstract: The present disclosure provides a vehicle coordinating device capable of improving the accuracy of following a target path of a vehicle. A vehicle coordinating device 1 that coordinates automatic driving of a vehicle 2 by a vehicle control device 21 mounted on the vehicle 2 includes a communication unit 11, a vehicle characteristic identification unit 12, and an identification accuracy estimation unit 13. The communication unit 11 is communicably connected to the vehicle control device 21. The vehicle characteristic identification unit 12 acquires a control command value of the automatic driving and a traveling locus of the vehicle 2 from the vehicle control device 21 via the communication unit 11, and identifies the vehicle characteristic used for the automatic driving. The identification accuracy estimation unit 13 estimates the identification accuracy of the vehicle characteristic by the vehicle characteristic identification unit 12.
    Type: Application
    Filed: March 4, 2022
    Publication date: May 23, 2024
    Applicant: HITACHI ASTEMO, LTD.
    Inventors: Go SAKAYORI, Yoshitaka ATARASHI, Hideki ENDO, Noriyasu HASEJIMA
  • Publication number: 20240169816
    Abstract: A work detection determination system performs detection determination on a work with high accuracy.
    Type: Application
    Filed: November 27, 2023
    Publication date: May 23, 2024
    Applicant: Hitachi, Ltd.
    Inventors: Tetsuya ISHIMARU, Hiroyuki YOSHIMOTO, Yoshihiro WAKISAKA, Nobuyuki SUGII
  • Patent number: 11989105
    Abstract: In a storage system, a failover time is shortened while avoiding erroneous detection of a node failure according to network quality. The storage system includes a plurality of storage nodes having processors; a data storage device; the plurality of storage nodes having the processors for processing data to be input to and output from the storage device; and a network for connecting the plurality of storage nodes, wherein the plurality of storage nodes monitors the operation status of each other to perform node failure detection for determining the occurrence of a failure of the storage node on the basis of a time-out value, performs a failover process in which one of the other storage nodes takes over the process of the storage node when the failure occurs in the storage node, and adjusts the time-out value on the basis of the status of the network between the storage nodes.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: May 21, 2024
    Assignee: HITACHI, LTD.
    Inventors: Misato Yoshida, Takaki Nakamura, Takahiro Yamamoto, Masakuni Agetsuma
  • Patent number: 11989623
    Abstract: The present invention aims at enabling a gate-type quantum computer to deal with actual problems. There is provided a quantum computer including: a quantum register holding qubits, a control gate performing an operation on the quantum register, and a readout unit observing a state of the quantum register; and the quantum computer repeating longitudinal relaxation to the ground state by gradually changing Hamiltonian H(t) for a predetermined time, wherein the unitary operation determined by the Hamiltonian H(t) at each time is performed with the control gate for a time of about a longitudinal relaxation time, the quantum state is relaxed every time of about the longitudinal relaxation time, and the ground state prepared for an initial state is time-evolved to the ground state of the Hamiltonian which is defined as a problem.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: May 21, 2024
    Assignee: HITACHI, LTD.
    Inventor: Tatsuya Tomaru
  • Patent number: 11987452
    Abstract: A plurality of workpieces include a plurality of first workpieces of a first workpiece group to be loaded onto a first loaded member according to a first loading sequence and a plurality of second workpieces of a second workpiece group to be loaded onto a second loaded member according to a second loading sequence. On a conveying device, workpieces are arranged at ransom with respect to respective arrangement sequences of the first workpiece group and the second workpiece group and the classifications of the first workpiece group and the second workpiece group. On a conveying device, workpieces of the first workpiece group are sequentially arranged based on the first loading sequence and workpieces of the second workpiece group are sequentially arranged based on the second loading sequence. At the same time, the workpieces of the first workpiece group and the second workpiece group are arranged together.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: May 21, 2024
    Assignee: HITACHI, LTD.
    Inventors: Sanato Nagata, Kei Utsugi, Nobutaka Kimura
  • Patent number: 11987246
    Abstract: An electronic control unit that is installed on a vehicle connected to a trailer and capable of towing the trailer changes travel control of the vehicle according to a type of the trailer when the trailer is connected to the vehicle.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: May 21, 2024
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Kenichi Shimbo, Tadanobu Toba, Hideyuki Sakamoto, Taisuke Ueta
  • Patent number: 11989535
    Abstract: A method of simulating codes that form a program configured to control a control target includes causing a processor to execute the following: first-setting a first process of executing a simulation of an operation of a code group excluding a specific code among the codes; second-setting a second process of executing a simulation of an operation of a specific model obtained by modeling the specific code; first-simulating, in the first process, a first simulation of a code preceding the specific code in the code group; second-simulating, in the second process, a second simulation of the specific model through use of an execution result of the first simulation by inter-process communication between the first process and the second process; and third-simulating, in the first process, a third simulation of a code succeeding the specific code through use of an execution result of the second simulation by the inter-process communication.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: May 21, 2024
    Assignee: HITACHI SOLUTIONS, LTD.
    Inventors: Masafumi Shimozawa, Shin Saito
  • Patent number: 11990897
    Abstract: Provided is a current control device capable of continuing feedback control for a solenoid in normal feedback control while preventing occurrence of an unintended valve operation due to flow of a reverse current.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: May 21, 2024
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Yasuo Shima, Keishi Komoriyama, Yoichiro Kobayashi
  • Patent number: 11989455
    Abstract: A storage system includes a plurality of storage nodes 4 each having one or more storage devices. The storage node includes a CPU. The CPU is configured to select a priority path to be notified as a usable path to a higher-level apparatus among paths which allows access of a predetermined logical unit to which a storage area of the storage device is provided from the higher-level apparatus. The CPU is configured to send the priority path as a reply to an inquiry about a path to the predetermined logical unit from the higher-level apparatus.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: May 21, 2024
    Assignee: HITACHI, LTD.
    Inventors: Shinri Inoue, Kouji Iwamitsu, Takao Totsuka
  • Patent number: 11987115
    Abstract: Provided is a technique for improving the cooling efficiency of a vehicle heat exchange system configured to cool a cooling liquid discharged from each of a plurality of heat sources.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: May 21, 2024
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Kazunori Ishihara, Jun Ikeda, Takaaki Tanaka, Yoshifumi Nabeshima, Hideaki Iijima, Tsukasa Akiyama