Patents Assigned to Hitachi, Ltd.
  • Publication number: 20210133444
    Abstract: A work recognition apparatus acquires a reference image including a work target from an input and output unit, estimates a first relative position of the work target and a camera from the reference image, converts a two-dimensional work region for the work target included in the reference image into a three-dimensional work region using template information, stores the three-dimensional work region in a storage apparatus as work model information, estimates a second relative position of the work target and the camera in a determination image acquired by the camera, calculates pixel coordinates indicating a two-dimensional work region in the determination image on the basis of the second relative position and the three-dimensional work region, and outputs the two-dimensional work region in the determination image indicated by the pixel coordinates that has been calculated, so as to be displayed by the input and output apparatus.
    Type: Application
    Filed: October 26, 2020
    Publication date: May 6, 2021
    Applicant: HITACHI, LTD.
    Inventor: Takumi NITO
  • Publication number: 20210128096
    Abstract: This is directed to calculating physical amounts of a plurality of types of basis materials without having to increase a calculation time. An image processing device is provided which includes a first basis material transformation unit that calculates each of physical amounts of two or more basis materials included in a first basis material group based on two or more types of projection data different in energy distribution, an image generation unit that generates a plurality of images, each of which is at least one of a projection image and a reconstructed image of an object, from physical amounts of two or more basis materials included in the first basis material group, and a second basis material transformation unit that calculates a physical amount of a basis material included in a second basis material group which is different from the first basis material group based on the plurality of images.
    Type: Application
    Filed: December 4, 2017
    Publication date: May 6, 2021
    Applicant: Hitachi, Ltd.
    Inventor: Yasutaka KONNO
  • Publication number: 20210130877
    Abstract: The present invention addresses the problem of providing a novel digital PCR analysis method. One embodiment of the novel digital PCR analysis method is a DNA detection method including the steps of: partitioning a DNA solution containing a fluorescent-labeled probe or a DNA intercalator and a target DNA to be detected into a plurality of compartments; carrying out a nucleic acid amplification reaction in the compartments; measuring a fluorescence intensity in association with a temperature change; calculating a melting temperature of a DNA double strand based on a change in the fluorescence intensity in association with the temperature change; and calculating a ratio of a fluorescence intensity at a second temperature that is lower than a first temperature in association with the temperature change to that at the first temperature.
    Type: Application
    Filed: May 20, 2019
    Publication date: May 6, 2021
    Applicant: HITACHI, LTD.
    Inventors: Junko TANAKA, Tatsuo NAKAGAWA, Yuzuru SHIMAZAKI, Kunio HARADA
  • Publication number: 20210130935
    Abstract: The purpose of the present invention is to provide an alloy product which has both of high corrosion resistance enough to withstand severe corrosive/high-temperature environments and mechanical properties equivalent to or better than those of stainless steel, and which can be produced at lower cost than a Ni-based alloy. The Cr—Fe—Ni-based alloy product of the present invention is a product produced using a Cr—Fe—Ni-based alloy containing Cr as a largest-content component, wherein the product has such a microstructure that a dual-phase structure having a ferrite phase and an austenite phase coexisting therein serves as a matrix phase and an L12-type Ni-based intermetallic compound phase is dispersed and precipitated in the austenite phase.
    Type: Application
    Filed: November 9, 2018
    Publication date: May 6, 2021
    Applicant: HITACHI, LTD.
    Inventor: Masafumi NOUJIMA
  • Publication number: 20210129854
    Abstract: The vehicle assistance system includes an infrastructure sensor installed in a predetermined place to detect an obstacle, an onboard apparatus connected to an onboard sensor which is mounted on the vehicle and which detects an obstacle, and a server installed in a place different from that of the infrastructure sensor. In the infrastructure sensor, the abnormality determination unit compares the first obstacle information related to the obstacle detected by the sensor unit and the second obstacle information related to the obstacle detected by the onboard sensor existing in a location different from that of the sensor unit, and determines whether or not the sensor unit or the onboard sensor is abnormal based on the result of this comparison.
    Type: Application
    Filed: September 23, 2020
    Publication date: May 6, 2021
    Applicant: HITACHI, LTD.
    Inventors: Akihiro KONDO, Takashi MATSUMOTO
  • Patent number: 10993701
    Abstract: A clutter reduction effect using adaptive beam forming is uniformly obtained with respect to the entire image even in an imaging condition in which the number of bundled signals is greatly distributed in an ultrasonic image. A received signal processing unit includes a summing unit that bundles the plurality of received signals for a predetermined imaging point or a plurality of signals obtained by processing the received signals, and a weighting unit that obtains a coherence value among the plurality of signals summed in the summing unit, and weights the plurality of signals before being summed in the summing unit or a signal obtained through summing in the summing unit, with a weight corresponding to the coherence value. The weighting unit weights the coherence value nonlinearly in a predetermined direction in the subject, and weights the plurality of signals before being summed in the summing unit or the signal obtained through summing in the summing unit by using the nonlinearly weighted coherence value.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: May 4, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Teiichiro Ikeda, Masanori Hisatsu, Chizue Ishihara, Mayumi Suzuki
  • Patent number: 10996076
    Abstract: A management server 103 holds a parameter of a sensor device 101 and change management information related to a change in the parameter, and transmits the changed parameter and the change management information to the sensor device. The sensor device 101 holds the parameter and the change management information transmitted from the management server, and transmits the change management information to the management server together with measurement data. The management server collates the received change management information and preliminarily-held change management information to determine the change in the parameter on the basis of a result of the collation.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: May 4, 2021
    Assignee: HITACHI, LTD.
    Inventors: Rintaro Katayama, Kenichi Mizugaki, Ryosuke Fujiwara
  • Patent number: 10995756
    Abstract: Provided is an air compressor which helps to attain a proper discharge air temperature and which is superior in energy saving property.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: May 4, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Masanao Kotani, Takeshi Tsuchiya, Ryoji Kawai, Kotaro Chiba, Minako Kanada, Sachio Sekiya
  • Patent number: 10998830
    Abstract: A power conversion device includes: power conversion cells; and a controller to control the cells. Each cell includes: a transformer; a primary conversion unit on a primary side of the transformer; a secondary conversion unit on a secondary side; a primary bypass device for short-circuiting between input terminals of the cell; and a secondary bypass device for short-circuiting between output terminals of the cell. The input terminals and/or the output terminals of the cells are connected in series. When the primary conversion unit(s) of a part of the cells is stopped, the controller turns on the primary bypass device and sets secondary DC link voltages to prescribed values; and when the secondary conversion unit(s) of a part of the cells is stopped, the controller turns on the secondary bypass device and controls the primary conversions units to set primary DC link voltages to prescribed values.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: May 4, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuhiro Kadota, Takae Shimada
  • Patent number: 10996295
    Abstract: Provided is a noise source search device to be applied to an MM apparatus that obtains an NMR signal generated from a subject disposed in a static magnetic field by applying an RF pulse of a high frequency coil and a gradient magnetic field pulse of a gradient magnetic field coil to the subject, the device including: a reference antenna and a probe antenna that measure a noise generated in the MRI apparatus; a noise generation condition specification unit that specifies an axis and a drive frequency as a noise generation condition generated in the MRI apparatus, on the basis of a noise intensity of the noise that is measured by the reference antenna; and a noise generation site specification unit that drives the gradient magnetic field coil under the noise generation condition that is specified by the noise generation condition specification unit.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: May 4, 2021
    Assignee: HITACHI, LTD.
    Inventor: Takeshi Yatsuo
  • Patent number: 10996641
    Abstract: Embodiments provide a system for controlling HVAC/ACMV system of a building, including an occupancy pattern extractor configured to generate at least one facility-based occupancy pattern for each facility type based on historical occupancy data and spatial information of the building; a zone occupancy predictor configured to predict zone occupancy variation of each zone after a predetermined time period, based on the facility-based occupancy patterns and real-time occupancy data; a similar zone matcher configured to match each zone with one or more pre-stored zones and determine air handler configurations based on the matched pre-stored zones; a configuration generator configured to determine configuration combinations by combining the air handler configurations for a plurality of zones of the building, each configuration combination including one of the air handler configurations for each zone; and a configuration optimizer configured to determine an optimal configuration combination based on one or more key
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: May 4, 2021
    Assignee: HITACHI, LTD.
    Inventors: Yang Yan, Rajesh Vellore Arumugam, Wujuan Lin
  • Patent number: 10999777
    Abstract: To improve line utilization efficiency in short-cycle data collection, it is provided a method of managing communication in a communication system, the communication system including: an aggregation unit configured to receive information through a communication path from a plurality of terminals, which are sources of information transmission; and a reservation unit configured to determine, for each of the plurality of terminals, timing at which the terminal transmits a signal, the method comprising steps of: receiving, by the reservation unit, a relative time specified by a user as a time at which the terminal transmits the information; and determining, by the reservation unit, as scheduling information, an absolute time unique throughout the communication system so that interference with another communication session is avoided when the terminal holds communication at the relative time.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: May 4, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Mikio Kuwahara, Makiko Satoh
  • Publication number: 20210125387
    Abstract: An embodiment of the process state analysis device of the present invention is provided with an evaluation value calculation unit and a graph creation unit. The evaluation value calculation unit calculates, within an evaluation value calculation range indicating a target range for calculating evaluation values, an evaluation value for each cluster that is classified on the basis of multi-dimensional process data output from each measurement device. The graph creation unit determines a hue for a graph element for each cluster on the basis of the evaluation value for the cluster as calculated within the evaluation value calculation range, and on the basis of a color reference evaluation value corresponding to a reference hue for the graph element, and creates and outputs a graph representing, for each aggregation unit time interval in a specified display period, the number of nodes belonging to each cluster.
    Type: Application
    Filed: May 23, 2019
    Publication date: April 29, 2021
    Applicant: HITACHI, LTD.
    Inventors: Miyuki KAWATA, Seunghwan PARK, Yoshiyuki TAKAMORI
  • Patent number: 10989632
    Abstract: An object of the invention is to improve uniformity of a standard sample used for evaluating a gas flow type analysis system. The invention includes weighing a background into a container; adding a sample solution to the background; drying the sample solution; adding a solvent that can dissolve the sample into the container; and drying the solvent added to the container. The invention is also characterized in that the solvent is an organic solvent, in particular, acetone.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: April 27, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Yasuaki Takada, Shun Kumano, Masuyuki Sugiyama, Hisashi Nagano, Tatsuo Nojiri, Hiroki Mizuno, Yuichiro Hashimoto
  • Patent number: 10990468
    Abstract: A computing system that can maintain reliability required of a storage program while causing the storage program to operate on an operating system (OS) is provided. A processor of the computing system executes an OS controlling a hardware device and a storage program operating on the OS and using the hardware device via the OS. The OS identifies an error status of the hardware device when receiving a notification of an error that has occurred to the hardware device, and notifies the storage program that operates on the OS of the error status when the error status satisfies a predetermined condition. The storage program determines error handling on the hardware device on the basis of the error status, and requests the OS to perform the determined error handling. The OS performs the determined error handling on the hardware device.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: April 27, 2021
    Assignee: HITACHI, LTD.
    Inventors: Akihiko Araki, Masakuni Agetsuma, Sachie Tajima, Takanobu Suzuki, Masanori Takada
  • Patent number: 10992788
    Abstract: According to an aspect of the present invention, a modeling method of a semantic gateway is provided, which includes: inputting a plurality of protocol data from a plurality of devices that each use a different protocol to the semantic gateway; performing, at the semantic gateway, a protocol analysis and syntax induction on the inputted plurality of protocol data respectively, to obtain a plurality of protocol ontology instances corresponding to the plurality of protocol data; performing, at the semantic gateway, a semantic query and matching operation for the plurality of protocol ontology instances using a dictionary library and a model ontology library to obtain a plurality of model ontologies corresponding to the plurality of protocol ontology instances; and merging, at the semantic gateway, the plurality of model ontologies to generate a generic model.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: April 27, 2021
    Assignee: HITACHI, LTD.
    Inventor: Zhirong Zeng
  • Patent number: 10989733
    Abstract: Provided are acceleration sensor, geophone and seismic prospecting system with high sensitivity and low power consumption. The acceleration sensor includes a mass body displaceable with respect to a rotation shaft. The acceleration sensor includes a first AC servo control facing a first symmetrical region of the first movable portion, a second AC servo control electrode facing a second symmetrical region of the second movable portion, and a DC servo control electrode facing an asymmetrical region of the second movable portion. A first AC servo capacitive element is formed by the first movable portion and the first AC servo control electrode, a second AC servo capacitive element is formed by the second movable portion and the second AC servo control electrode, and a DC servo capacitive element is formed by the second movable portion and the DC servo control electrode.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: April 27, 2021
    Assignee: HITACHI, LTD.
    Inventors: Yuudai Kamada, Atsushi Isobe, Noriyuki Sakuma, Takashi Shiota, Chisaki Takubo
  • Patent number: 10991529
    Abstract: An object is to enhance direct-current insulating performance of a gas-blast circuit breaker. The gas-blast circuit breaker includes: a pair of main contacts disposed in a gas tank to face each other and configured to operate for opening and closing a circuit; a pair of arc contacts disposed to face each other and configured to operate for opening and closing the circuit, the arc contacts being disposed coaxially with the main contacts at locations close to the centers of the main contacts, respectively; and an elastic electrically conductive material disposed on an outer surface of an insulating nozzle facing an inner surface of one of the main contacts.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: April 27, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Hideyuki Kotsuji, Jun Nukaga, Makoto Hirose, Takahiro Nishimura
  • Patent number: 10989700
    Abstract: A purpose of the present invention is to provide a temperature history indicator that allows for visual confirmation of whether the temperature is at or below a prescribed temperature as well as simple conversion of this information into data. A temperature history indicator according to the present invention is characterized by being provided with a label layer and a temperature-indicating layer laminated above or below the label layer, wherein the temperature-indicating layer includes a substance having at crystallization starting temperature of 10° C. or lower and a melting point at least 20° C. higher than the crystallization starting temperature.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: April 27, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Sukekazu Aratani, Hiroshi Sasaki, Toyotaka Yuasa, Kohhei Aida, Yasuhiko Tada, Masahiro Kawasaki
  • Patent number: 10990491
    Abstract: An I/O result receiving unit receives, from a storage device control unit, a result of I/O to a logical device with respect to an I/O request from an I/O control unit, a format target determining unit considers a failed track to be a format target when the failed track corresponds to a control area or an unallocated area, and a format requesting unit requests the storage device control unit to format a storage area of storage devices which corresponds to a page allocated to the failed track having been considered a format target.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: April 27, 2021
    Assignee: HITACHI, LTD.
    Inventors: Ryo Tamaki, Shintaro Ito, Toshiaki Terao