Patents by Inventor Yohei Kawaguchi

Yohei Kawaguchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11906936
    Abstract: An electronic apparatus includes a secondary battery, a first power feeder, a second power feeder, and a processor. The first power feeder feeds power to the secondary battery. The second power feeder feeds power to the secondary battery at a current larger than a current fed by the first power feeder. The processor selects an operation mode of the electronic apparatus based on different reference values selected based on whether the first power feeder is feeding power to the secondary battery or the second power feeder is feeding power to the secondary battery.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: February 20, 2024
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Fumiaki Ochiai, Yoshinori Asami, Yohei Kawaguchi, Katsuhiko Obata
  • Patent number: 11874003
    Abstract: An outdoor unit of an air-conditioning apparatus includes: a housing; a heat exchanger provided in the housing; an electric component box provided in the housing; and a separator that partitions the inside of the housing into a first chamber and a second chamber. The separator is provided on a front surface of the heat exchanger. The first chamber and the second chamber are provided side by side in a lateral direction as viewed in a side-on view of the outdoor unit. The electric component box is provided on the front surface of the heat exchanger and above the separator. The outdoor unit includes a first positioning member and a second positioning member. The first positioning member is provided on the electric component box, and determines the position of the electric component box in a vertical direction and a front-rear direction relative to the heat exchanger.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: January 16, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaya Yamasuso, Yohei Kawaguchi
  • Patent number: 11869492
    Abstract: An anomaly detection apparatus includes a device identification database that stores device identification information for identifying a specific device for each type of a device, a hierarchical conditional vector generation unit that generates a hierarchical conditional vector based on the device identification information, an extraction unit that extracts a target device feature amount vector indicating a feature amount of an acoustic signal acquired from a target device by analyzing the acoustic signal, a hierarchical condition adversarial neural network that outputs background noise level information indicating a background noise level of a surrounding environment of the target device and true/false determination information indicating true/false of the target device feature amount vector by analyzing the hierarchical conditional vector and the target device feature amount vector, and an anomaly determination unit that determines whether an anomaly exists in the target device feature amount vector.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: January 9, 2024
    Assignee: HITACHI, LTD.
    Inventors: Harsh Pramodbhai Purohit, Takashi Endo, Yohei Kawaguchi
  • Patent number: 11710500
    Abstract: An abnormality degree calculation system includes: a feature amount vector extraction unit configured to generate and output a feature amount vector from an input signal originating from vibration of a target device; an encoding unit configured to receive as an input a set composed of the feature amount vector and a device type vector representing a type of the target device and output an encoding vector; a decoding unit configured receive as an input the encoding vector and the device type vector and output a decoding vector; a learning unit configured to learn parameters of the neural networks of the encoding unit and the decoding unit; and an abnormality degree calculation unit configured to calculate a degree of abnormality defined as a function of the feature amount vector from the feature amount vector extraction unit, the encoding vector from the encoding unit, and the decoding vector from the decoding unit.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: July 25, 2023
    Assignee: HITACHI, LTD.
    Inventor: Yohei Kawaguchi
  • Patent number: 11692937
    Abstract: Provided are a spectral calibration apparatus and a spectral calibration method capable of performing spectral calibration with high accuracy even when peaks appear simultaneously between fluorescent dyes. The spectral calibration apparatus for calculating a color conversion matrix used in color conversion processing, includes a spectral signal acquisition unit that acquires a spectral signal of fluorescence detected over time, a candidate calculation unit that calculates a candidate of the color conversion matrix for each value of a parameter, which depends on a frequency at which fluorescence peaks of fluorescent dyes appear at the same time, based on the spectral signal, and a selection unit that selects a color conversion matrix based on an evaluation value calculated for each candidate.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: July 4, 2023
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Yohei Kawaguchi, George Chalkidis, Tomohiro Yasuda
  • Publication number: 20230195508
    Abstract: An electronic device includes: a memory configured to a program; and one or more processors configured to execute the program stored in the memory. The one or more processors are connected to a first circuit and a second circuit, the first circuit being configured to execute a first operation cyclically and output an interrupt signal corresponding to the first operation, the second circuit being configured to execute a second operation in response to an operation instruction. In response to receiving the interrupt signal, the one or more processors output the operation instruction to the second circuit such that the second operation is not executed in a period in which the first operation affects the second operation.
    Type: Application
    Filed: December 19, 2022
    Publication date: June 22, 2023
    Applicant: CASIO COMPUTER CO., LTD.
    Inventors: Yohei KAWAGUCHI, Keiichi NOMURA, Fumiaki OCHIAI, Tatsuya SEKITSUKA
  • Publication number: 20230169977
    Abstract: To provide a sound extraction system and a sound extraction method capable of accurately extracting, from mixture signals, a signal corresponding to a sound which a user wants to extract. The sound extraction system includes a sound extraction device configured to extract, from mixture signals including a signal corresponding to an extraction target sound, the signal corresponding to the extraction target sound. The sound extraction device is configured to extract the signal corresponding to the extraction target sound from the mixture signals based on the mixture signals and a text representing a range of the extraction target sound.
    Type: Application
    Filed: November 14, 2022
    Publication date: June 1, 2023
    Inventor: Yohei KAWAGUCHI
  • Patent number: 11656581
    Abstract: An embodiment of an electronic timepiece includes a cylindrical exterior case, a bezel and a windshield member. In the exterior case, a circuit board is housed. The bezel is formed of a metal material to be ring-shaped, includes an inward flange part that projects from an inner side surface toward a center of the ring-shaped bezel, is arranged on an outer upper side of the exterior case and is electrically connected with the circuit board. The windshield member is formed of a transparent dielectric substance, arranged in the bezel and supported by the inward flange part. The bezel is configured to resonate with a radio wave having a desired frequency by adjustment of at least one of (i) a relative permittivity of the dielectric substance and (ii) an area of an overlap region where the inward flange part and the windshield member overlap each other.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: May 23, 2023
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Daisuke Uematsu, Takashi Sano, Yohei Kawaguchi, Tatsumi Ichimura, Takumi Yasuda
  • Patent number: 11569135
    Abstract: To provide a wavelength selection method or a plasma processing method to achieve accurate detection of residual thickness or etching amount, there is provided a plasma processing method, in which a processing object wafer is disposed within a processing chamber in the inside of a vacuum container, and plasma is generated by supplying a processing gas into the processing chamber and used to process a processing-object film layer beforehand formed on a surface of the wafer, and at least two wavelengths are selected from among wavelengths with large mutual information in emission of a plurality of wavelengths of plasma generated during processing of the processing-object film layer, and a temporal change in the emission of at least the two wavelengths is detected, and an endpoint of the processing of the film layer is determined based on a result of the detection.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: January 31, 2023
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Yohei Kawaguchi, Tatehito Usui, Shigeru Nakamoto
  • Patent number: 11543138
    Abstract: An outdoor unit for an air-conditioning apparatus according to the present disclosure includes a heat exchanger comprised of an upper heat exchanger and a lower heat exchanger that are arranged in an up-down direction, an accumulator configured to store refrigerant, a casing, an inside of which is partitioned by a partition plate into an air-sending chamber accommodating the heat exchanger and a machine chamber accommodating the accumulator, and a fixing component configured to be fixed to the heat exchanger and the accumulator so that the accumulator is fixed to the heat exchanger, wherein the fixing component is fixed to both of the upper heat exchanger and the lower heat exchanger.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: January 3, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yohei Kawaguchi
  • Publication number: 20220397894
    Abstract: Provided are an abnormality detection system and an abnormality detection method capable of performing more stable abnormality detection. An abnormality detection system that detects an abnormality of the target machine by a computer includes a communication unit configured to acquire first data from a first sensor attached to the target machine and second data from a second sensor attached to the target machine, an arithmetic unit, and a memory unit. The arithmetic unit includes an encoding unit trained to generate latent expressions including a predetermined latent expression that estimates the second data on the basis of the first data, a decoding unit trained to restore the first data from the latent expressions, and an abnormality detection unit configured to detect the abnormality of the target machine on the basis of a restoration error between the first data and the first data restored by the decoding unit.
    Type: Application
    Filed: May 31, 2022
    Publication date: December 15, 2022
    Inventors: Kota DOHI, Harsh Pramodbhai PUROHIT, Ryo TANABE, Masaaki YAMAMOTO, Takashi ENDO, Yohei KAWAGUCHI
  • Patent number: 11498749
    Abstract: A packing unit for an air-conditioning apparatus includes an outdoor unit with heavy objects that are provided on a bottom plate of a housing of the outdoor unit. On the packing unit, the outdoor unit is placed. The packing unit includes: a support base that has a cuboid framework structure made by combining a plurality of wood pieces, and supports the outdoor unit; a long wood piece that has a long plate shape, and that forms part of an upper surface portion of the support base and faces the bottom plate, the long wood piece having end portions, one of the end portions being fixed to the support base, the other being a free end that is movable in a vertical direction; and a support wood piece that is provided on an upper surface portion of the end portion on a free end side of the long wood piece.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: November 15, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroki Tsuchiya, Koji Sachimoto, Yohei Kawaguchi, Yusuke Mukai
  • Patent number: 11473788
    Abstract: An outdoor unit of an air-conditioning apparatus enabling a soundproof material to correctly cover a compressor and having enhanced assembling efficiency and a method for assembling the outdoor unit of an air-conditioning apparatus are provided. The outdoor unit of an air-conditioning apparatus includes the compressor installed inside a casing and the soundproof material covering at least the compressor. The soundproof material includes a lower soundproof material surrounding a lateral periphery of a lower portion of the compressor and an upper soundproof material surrounding a lateral periphery of an upper portion of the compressor.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: October 18, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yo Kitabatake, Shigeru Hata, Keiichi Tomita, Yohei Kawaguchi, Rei Hayakawa, Kento Oku
  • Publication number: 20220269988
    Abstract: An abnormality degree calculation system includes a concept classification assignment unit that assigns a predetermined concept classification based on an identification number of a target device, a feature value vector extraction unit that extracts a feature value vector based on sensor data of a sensor corresponding to the target device, a likelihood calculation unit that calculates a likelihood of the feature value vector by using a machine learning model obtained from a learning database, a loss calculation unit that calculates a loss using a loss function as a function of the likelihood, a model update unit that updates the model by using the loss and a model, a re-learning necessity determination unit that determines whether re-learning is necessary from the calculated likelihood when an abnormality of the target device is detected, and an abnormality degree calculation unit that calculates an abnormality degree when the re-learning is unnecessary.
    Type: Application
    Filed: February 1, 2022
    Publication date: August 25, 2022
    Applicant: Hitachi, Ltd.
    Inventors: Kota DOHI, Takashi ENDO, Yohei KAWAGUCHI
  • Patent number: 11377685
    Abstract: A base sequence determination apparatus includes (1) a mobility correction unit that outputs a mobility correction signal obtained by mobility correction of a time-series signal of a wavelength spectrum corresponding to each base, (2) a deconvolution unit that executes processes for calculating a deconvoluted signal of the mobility correction signal respectively for a plurality of parameter candidates of point spread function, calculating variance of peak intervals for the calculated deconvoluted signal, specifying a parameter of the point spread function using the calculated variance, and outputting the deconvoluted signal corresponding to the point spread function having the specified parameter as an updated deconvoluted signal, (3) a peak extracting unit that extracts a peak waveform from the updated deconvoluted signal and outputs an updated peak-extracted signal, and (4) a sequence specifying unit that inputs the updated peak-extracted signal and determines a base sequence.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: July 5, 2022
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Yohei Kawaguchi, Tomohiro Yasuda, George Chalkidis, Takahide Yokoi
  • Patent number: 11381470
    Abstract: The hyperparameter management device of the present invention includes a compression network to dimensionally compress data to produce a low dimensional representation, an estimation network to estimate a density distribution of the low dimensional representation and a hyperparameter calculation unit to calculate hyperparameters for the compression network and the estimation network, wherein the hyperparameter calculation unit calculates, based on a set of subject data and a set of uniform data, a gap statistic using a gap statistic calculation technique, and calculates, using a curve fitting technique, an estimation network hyperparameter based on at least the gap statistic, calculates a ratio of variance of principal components of the set of subject data, and calculates, using a curve fitting technique, a compression network hyperparameter based on at least the ratio of variance, and sets the estimation network hyperparameter in the estimation network and sets the compression network hyperparameter in the c
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: July 5, 2022
    Assignee: HITACHI, LTD.
    Inventors: Harsh Pramodbhai Purohit, Takashi Endo, Yohei Kawaguchi
  • Publication number: 20220208184
    Abstract: An anomaly detection apparatus includes a device identification database that stores device identification information for identifying a specific device for each type of a device, a hierarchical conditional vector generation unit that generates a hierarchical conditional vector based on the device identification information, an extraction unit that extracts a target device feature amount vector indicating a feature amount of an acoustic signal acquired from a target device by analyzing the acoustic signal, a hierarchical condition adversarial neural network that outputs background noise level information indicating a background noise level of a surrounding environment of the target device and true/false determination information indicating true/false of the target device feature amount vector by analyzing the hierarchical conditional vector and the target device feature amount vector, and an anomaly determination unit that determines whether an anomaly exists in the target device feature amount vector.
    Type: Application
    Filed: September 8, 2021
    Publication date: June 30, 2022
    Applicant: HITACHI, LTD.
    Inventors: Harsh Pramodbhai PUROHIT, Takashi ENDO, Yohei KAWAGUCHI
  • Publication number: 20220128247
    Abstract: An outdoor unit of an air-conditioning apparatus includes: a housing; a heat exchanger provided in the housing; an electric component box provided in the housing; and a separator that partitions the inside of the housing into a first chamber and a second chamber. The separator is provided on a front surface of the heat exchanger. The first chamber and the second chamber are provided side by side in a lateral direction as viewed in a side-on view of the outdoor unit. The electric component box is provided on the front surface of the heat exchanger and above the separator. The outdoor unit includes a first positioning member and a second positioning member. The first positioning member is provided on the electric component box, and determines the position of the electric component box in a vertical direction and a front-rear direction relative to the heat exchanger.
    Type: Application
    Filed: April 8, 2019
    Publication date: April 28, 2022
    Inventors: Masaya YAMASUSO, Yohei KAWAGUCHI
  • Patent number: 11279551
    Abstract: A packing unit for an air-conditioning apparatus includes an outdoor unit with heavy objects that are provided on a bottom plate of a housing of the outdoor unit. On the packing unit, the outdoor unit is placed. The packing unit includes: a support base that has a cuboid framework structure made by combining a plurality of wood pieces, and supports the outdoor unit; a long wood piece that has a long plate shape, and that forms part of an upper surface portion of the support base and faces the bottom plate, the long wood piece having end portions, one of the end portions being fixed to the support base, the other being a free end that is movable in a vertical direction; and a support wood piece that is provided on an upper surface portion of the end portion on a free end side of the long wood piece.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: March 22, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroki Tsuchiya, Koji Sachimoto, Yohei Kawaguchi, Yusuke Mukai
  • Publication number: 20220035318
    Abstract: An embodiment of an electronic timepiece includes a cylindrical exterior case, a bezel and a windshield member. In the exterior case, a circuit board is housed. The bezel is formed of a metal material to be ring-shaped, includes an inward flange part that projects from an inner side surface toward a center of the ring-shaped bezel, is arranged on an outer upper side of the exterior case and is electrically connected with the circuit board. The windshield member is formed of a transparent dielectric substance, arranged in the bezel and supported by the inward flange part. The bezel is configured to resonate with a radio wave having a desired frequency by adjustment of at least one of (i) a relative permittivity of the dielectric substance and (ii) an area of an overlap region where the inward flange part and the windshield member overlap each other.
    Type: Application
    Filed: October 15, 2021
    Publication date: February 3, 2022
    Applicant: CASIO COMPUTER CO., LTD.
    Inventors: Daisuke UEMATSU, Takashi SANO, Yohei KAWAGUCHI, Tatsumi ICHIMURA, Takumi YASUDA