Patents by Inventor Atsushi Ishikawa

Atsushi Ishikawa 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: 11852534
    Abstract: An optical filter includes a filter array including filters two-dimensionally arrayed and a band-pass filter. The filters includes first and second filters. A transmission spectrum of each of the first and second filters has local maximum values of transmittance at three or more wavelengths included in a first wavelength region. The band-pass filter passes light in a second wavelength region including two or more wavelengths of the three or more wavelengths and not including one or more wavelengths of the three or more wavelengths. The filter array and the band-pass filter are disposed so that (a) the band-pass filter is located on an optical path of light that passes through the first and second filters or (b) the first and second filters are located on an optical path of light that passes through the band-pass filter.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: December 26, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasuhisa Inada, Atsushi Ishikawa
  • Patent number: 11845499
    Abstract: A control device for a power steering device includes a low-pass filter unit including a cutoff frequency adjustment unit configured to adjust a cutoff frequency for partially attenuating a component of an input signal, set the cutoff frequency to a first cutoff frequency when a steering torque signal is lower than a first predetermined torque value, and to set the cutoff frequency to a second cutoff frequency lower than the first cutoff frequency when the steering torque signal is equal to or higher than the first predetermined torque value.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: December 19, 2023
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Yasuhito Nakakuki, Kazuya Yamano, Atsushi Ishikawa
  • Patent number: 11843876
    Abstract: An optical filter array is used in a photodetection device that generates image data separately for each of N (where N is an integer greater than or equal to 4) wavelength bands. The optical filter array includes a plurality of optical filters. The plurality of optical filters include plural types of optical filters differing in transmittance from each other in each of the N wavelength bands. Assuming that pi is an average of transmittances of the plurality of optical filters for light in an ith wavelength band (where i is an integer greater than or equal to 1 and less than or equal to N) of the N wavelength bands, a standard deviation of the average ?i of the transmittances for the N wavelength bands is less than or equal to 0.13.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: December 12, 2023
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Atsushi Ishikawa, Yasuhisa Inada, Kazuya Hisada
  • Patent number: 11831204
    Abstract: A rotor core has first and second core parts in an axial direction. The first and second core parts have first and second magnet insertion holes in which rare earth magnets are disposed. A width of the first magnet insertion hole is wider than the second magnet insertion hole. The first core part has one or more slits elongated in the radial direction, the number of which is N1 (?1), on a radially outer side of the first magnet insertion hole. The second core part has no, one or more slits elongated in the radial direction, the number of which is N2 (?0), on a radially outer side of the second magnet insertion hole. N1>N2 is satisfied. A ratio of a length of the second core part in the axial direction to that of the rotor core is greater than or equal to 70% and less than 100%.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: November 28, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventor: Atsushi Ishikawa
  • Publication number: 20230365918
    Abstract: A method for manufacturing an acetic acid bacterium culture and the acid bacterium culture, the acid bacterium culture contains PS1 (Glc:Gal:Man:GlcA=6.0:5.0 to 6.5:0.05 to 0.4:0.05 to 0.4) and/or PS2 (Glc:Rha:Man:GlcA=4.0:1.5 to 2.5:0.05 to 0.4:0.05 to 0.4) which are/is water-soluble polysaccharide(s). The method includes a fermentation step S1: a step of culturing acetic acid bacteria belonging to the genus Kozakia to give a first culture containing PS1, or culturing acetic acid bacteria belonging to the genus Komagataeibacter to give a first culture containing PS2, or culturing acetic acid bacteria belonging to the genus Kozakia and acetic acid bacteria belonging to the genus Komagataeibacter to give a first culture containing PS1 and PS2.
    Type: Application
    Filed: July 27, 2023
    Publication date: November 16, 2023
    Applicant: MIZKAN HOLDINGS CO., LTD.
    Inventors: Atsushi Ishikawa, Masachika Takaoka
  • Publication number: 20230368487
    Abstract: A method for detecting a foreign object on or in an object, the method being executed by a computer, includes acquiring image data of the object including information regarding four or more bands, extracting, for individual regions of the object, partial image data corresponding to at least one band among the four or more bands from the image data, performing, for each region, a detection operation for detecting, based on the partial image data, a foreign object on or in the object, and outputting data representing a detection result. The at least one band is selected in accordance with each of the regions.
    Type: Application
    Filed: July 28, 2023
    Publication date: November 16, 2023
    Inventors: YOSHIFUMI KARIATSUMARI, YUMIKO KATO, ATSUSHI ISHIKAWA
  • Publication number: 20230362462
    Abstract: An imaging system is an imaging system using a compressed sensing technology, and includes a filter array including types of filters different from one another in transmission spectrum, an image sensor that generates image data based on light that passes through the filter array, a processing circuit that generates hyperspectral image data including images corresponding to four or more bands included in a target wavelength region on the basis of the image data and a reconstruction table decided on the basis of a spatial distribution of the transmission spectra of the types of filters, and a light source that emits reference light used for calibration for correcting the reconstruction table and having a wavelength of at least one of the four or more bands, and the processing circuit corrects the reconstruction table on the basis of reference image data which the image sensor generates by detecting the reference light.
    Type: Application
    Filed: July 22, 2023
    Publication date: November 9, 2023
    Inventors: TAKAYUKI KIYOHARA, MOTOKI YAKO, ATSUSHI ISHIKAWA
  • Patent number: 11802708
    Abstract: An outdoor unit includes a heat exchanger, a fan having a motor having coils to blow air to the heat exchanger, a connection switching unit to switch a connection state of the coils between a first connection state and a second connection state in which a line voltage is lower than a line voltage in the first connection state, and a temperature sensor to detect a temperature. When the motor is not driven, the connection switching unit sets the connection state of the coils to the second connection state. When the motor rotates, the connection switching unit sets the connection state of the coils to the first connection state if a detected temperature by the temperature sensor is higher than or equal to a threshold, and the connection switching unit sets the connection state of the coils to the second connection state if the detected temperature is lower than the threshold.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: October 31, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventor: Atsushi Ishikawa
  • Publication number: 20230318381
    Abstract: A stator includes a stator core, three-phase coils attached to the stator core by distributed winding, and a first insulator insulating the three-phase coils. The three-phase coils include 2 × n U-phase coils, 2 × n V-phase coils, and 2 × n W-phase coils in a coil end. Each of the 2 × n U-phase coils, the 2 × n V-phase coils, and the 2 × n W-phase coils includes n first coils and n second coils. The n second coils are disposed outward from the n first coils in the coil end. The first insulator is disposed in the slot where the second coils are disposed.
    Type: Application
    Filed: September 11, 2020
    Publication date: October 5, 2023
    Inventors: Atsushi ISHIKAWA, Atsushi MATSUOKA
  • Publication number: 20230238413
    Abstract: A light detecting device is provided with: a filter array including filters arranged two-dimensionally, each of the filters having a light-incident surface and a light-emitting surface, the filters including multiple types of filters having mutually different transmission spectra; and an image sensor having a light-detecting surface facing the light-emitting surface, the image sensor being provided with light-detecting elements arranged two-dimensionally on the light-detecting surface, wherein the distance between the light-emitting surface and the light-detecting surface is different for each of the filters.
    Type: Application
    Filed: April 3, 2023
    Publication date: July 27, 2023
    Inventors: YOSHIKAZU YAMAOKA, MOTOKI YAKO, ATSUSHI ISHIKAWA, CHIKAI HOSOKAWA, TAKU HIRASAWA
  • Patent number: 11696042
    Abstract: An imaging apparatus includes an image sensor, a filter array disposed on an optical path from a target object to the image sensor and including two-dimensionally-arranged optical filters, and a processing circuit that generates at least four pieces of spectral image data based on an image acquired by the image sensor. The optical filters include various types of optical filters with different spectral transmittance. Each of the at least four pieces of spectral image data indicates an image corresponding to one of at least four wavelength bands. The filter array includes at least one characteristic section. The processing circuit detects a relative position between the filter array and the image sensor based on the at least one characteristic section in the image acquired by the image sensor, and compensates for deviation between the relative position and a preliminarily-set relative position when the processing circuit detects the deviation.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: July 4, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Motoki Yako, Atsushi Ishikawa, Kazuya Hisada
  • Publication number: 20230208232
    Abstract: A stator includes a stator core having 9×n (n is an integer equal to or larger than 1) slots and three-phase coils to form 4×n magnetic poles. The three-phase coils include 2×n U-phase coils, 2×n V-phase coils, and 2×n W-phase coils in a coil end. Each of 2×n U-phase coils, 2×n V-phase coils, and 2×n W-phase coils includes n first coil(s) disposed in the stator core at two-slot pitch and n second coils(s) disposed in the stator core at three-slot pitch. The stator satisfies 0.928?N1/N2<2 or 2<N1/N2?3.294, where N1 is the number of turns of each of the n first coil(s) and N2 is the number of turns of each of the n second coil(s).
    Type: Application
    Filed: July 17, 2020
    Publication date: June 29, 2023
    Inventors: Atsushi ISHIKAWA, Atsushi MATSUOKA
  • Publication number: 20230168126
    Abstract: A filter array includes optical filters arranged in two dimensions. The optical filters include a first filter and a second filter. The first filter includes a first multimode filter having, within a target wavelength range, first peak wavelengths at each of which the optical transmittance is at a local maximum, and a first band-limiting filter having, as a limiting band, a first sub-wavelength range that is a part of the target wavelength range. The second filter includes a second multimode filter having, within the target wavelength range, second peak wavelengths at each of which the optical transmittance is at a local maximum, at least one of the second peak wavelengths being different from the first peak wavelengths, and a second band-limiting filter restricting transmission of light in a second sub-wavelength range that is a part of the target wavelength range and that is different from the first sub-wavelength range.
    Type: Application
    Filed: February 1, 2023
    Publication date: June 1, 2023
    Inventors: MOTOKI YAKO, ATSUSHI ISHIKAWA
  • Publication number: 20230092032
    Abstract: A filter array includes optical filters that are disposed in a two-dimensional plane. At least one optical filter of the optical filters includes an interference layer having a first surface and a second surface opposite the first surface, and a reflective layer provided on the first surface. A transmission spectrum of the at least one optical filter has maximum values. The reflective layer is not provided on the second surface.
    Type: Application
    Filed: November 1, 2022
    Publication date: March 23, 2023
    Inventors: MOTOKI YAKO, ATSUSHI ISHIKAWA
  • Publication number: 20230079297
    Abstract: A signal processing method is performed by a computer. The signal processing method includes: obtaining first compressed image data including hyperspectral information and indicating a two-dimensional image in which the hyperspectral information is compressed, the hyperspectral information being luminance information on each of at least four wavelength bands included in a target wavelength range; extracting partial image data from the first compressed image data; and generating first two-dimensional image data corresponding to a first wavelength band and second two-dimensional image data corresponding to a second wavelength band from the partial image data.
    Type: Application
    Filed: November 22, 2022
    Publication date: March 16, 2023
    Inventors: MOTOKI YAKO, ATSUSHI ISHIKAWA
  • Publication number: 20230069927
    Abstract: A filter array includes filters disposed in a two-dimensional plane and having different transmission spectra. The filters include a first filter with a transmission spectrum having a first peak group including first and second peaks adjacent to each other, and at least one second filter with a transmission spectrum having a second peak group including third and fourth peaks adjacent to each other. Of peaks included in the second peak group, the third peak has a wavelength closest to a wavelength at the first peak. A first interval between the wavelength at the first peak and a wavelength at the second peak is different from a second interval between the wavelength at the third peak and a wavelength at the fourth peak. ?FSR/??0.25, where ?FSR denotes an absolute value of a difference between the first and second intervals and ? denotes a half-width of the first peak.
    Type: Application
    Filed: October 21, 2022
    Publication date: March 9, 2023
    Inventors: MOTOKI YAKO, ATSUSHI ISHIKAWA, KAZUYA HISADA
  • Publication number: 20230073201
    Abstract: A filter array used in a light detection device, which generates image data corresponding to each of N wavelength bands (N being an integer greater than or equal to 2) included in a specific wavelength range, includes optical filters. The optical filters include various types of optical filters with different light transmittance with respect to each wavelength band. Mi?0.1 with respect to each wavelength band, where Mi=?i??i, ?i denoting an average value of light transmittance of the optical filters with respect to light having a wavelength included in an i-th wavelength band (i being an integer greater than or equal to 1 and less than or equal to N) of the N wavelength bands, ?i denoting a standard deviation of the light transmittance of the optical filters with respect to the light having the wavelength included in the i-th wavelength band.
    Type: Application
    Filed: November 11, 2022
    Publication date: March 9, 2023
    Inventors: MOTOKI YAKO, ATSUSHI ISHIKAWA, KAZUYA HISADA
  • Patent number: 11572300
    Abstract: To provide a method for manufacturing a medical glass container prevented from breakage and deformation and a fire blasting device.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: February 7, 2023
    Inventors: Kazuhisa Moriuchi, Yoshio Inoue, Atsushi Ishikawa, Yoshihiro Kawai
  • Publication number: 20230027122
    Abstract: An optical scan device includes an optical waveguide array, including a plurality of optical waveguides each of which propagates light along a first direction, that emits a light beam, the plurality of optical waveguides being arranged in a second direction that intersects the first direction, a phase shifter array including a plurality of phase shifters connected separately to each of the plurality of optical waveguides, a control circuit that controls a phase shift amount of each of the plurality of phase shifters and/or inputting of light to each of the plurality of phase shifters and thereby controls a direction and shape of the light beam that is emitted from the optical waveguide array, a photodetector that detects the light beam reflected by a physical object, and a signal processing circuit that generates distance distribution data on the basis of output from the photodetector.
    Type: Application
    Filed: September 14, 2022
    Publication date: January 26, 2023
    Inventors: Yasuhisa INADA, Atsushi ISHIKAWA, Yumiko KATO
  • Publication number: 20220414948
    Abstract: A signal processing method according to one aspect of the present disclosure includes obtaining compressed image data including two-dimensional image information that is obtained by compressing hyperspectral information corresponding to wavelength bands included in a target wavelength range, obtaining setting data including information designating one or more sub-wavelength ranges that are parts of the target wavelength range, and generating, based on the compressed image data, two-dimensional images corresponding to wavelength bands included in the one or more sub-wavelength ranges.
    Type: Application
    Filed: September 7, 2022
    Publication date: December 29, 2022
    Inventors: MOTOKI YAKO, ATSUSHI ISHIKAWA, KAZUYA HISADA