Patents by Inventor Yoshiaki Ishii

Yoshiaki Ishii 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: 10880473
    Abstract: Provided are an imaging apparatus, a signal processing method for an imaging apparatus, and a non-transitory computer readable recording medium storing a signal processing program for an imaging apparatus capable of capturing a high quality image with a compact configuration. An imaging lens 10A is composed of, in order from an object side, a first lens group G1 that is fixed during variable magnification, a second lens group G2 and a third lens group G3 that move during variable magnification, and a fourth lens group G4 that is fixed during variable magnification. The first lens group G1 is composed, in order from the object side, a first-a lens group G1a that is fixed during focusing, a first-b lens group G1b that moves during focusing, and a first lens group rear group G1c that is fixed during focusing. Fluctuation of an angle of view with focusing is corrected through image processing.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: December 29, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Daiki Komatsu, Yosuke Naruse, Kenkichi Hayashi, Yoshiaki Ishii, Yasunobu Kishine
  • Publication number: 20200369224
    Abstract: A fiber aggregate for sound insulation capable of effectively insulating sound by a simple structure and a sound absorbing and insulating material and a sound absorbing and insulating material for vehicles having the fiber aggregate for sound insulation are provided. The fiber aggregate for sound insulation has an average fiber diameter from 450 nm to 5800 nm and a bulk density from 0.09 g/cm3 to 0.33 g/cm3. The fiber aggregate for sound insulation particularly preferably has an average fiber diameter from 450 nm to 1650 nm and a bulk density from 0.09 g/cm3 to 0.22 g/cm3. The fiber aggregate for sound insulation satisfying these numerical ranges is capable of achieving lightness in weight and exhibiting effective sound insulating performance.
    Type: Application
    Filed: June 28, 2019
    Publication date: November 26, 2020
    Inventors: Hiroyoshi SOTA, Morihiko IKEGAYA, Kenichi URABE, Takatsugu ECHIZENYA, Toshiki HIROGAKI, Wei WU, Yoshiaki ISHII
  • Publication number: 20200368723
    Abstract: An oil and fat adsorbing nanofiber laminate in which an oil suction rate is secured and a suction speed is effectively increased, a method for estimating an oil and fat suction rate of an oil and fat adsorbing nanofiber aggregate, and a method for estimating a volume after oil and fat adsorption are provided. An oil and fat adsorbing nanofiber aggregate 1 has an average fiber diameter d of 1000 nm or more and 2000 nm or less and a bulk density ?b of 0.01 g/cm3 or more and 0.2 g/cm3 or less. The oil and fat adsorbing nanofiber aggregate 1 is capable of securing a suction rate of oil and fat and effectively increasing a suction speed.
    Type: Application
    Filed: June 28, 2018
    Publication date: November 26, 2020
    Inventors: Hiroyoshi SOTA, Morihiko IKEGAYA, Kenichi URABE, Takatsugu ECHIZENYA, Toshiki HIROGAKI, Wei WU, Yoshiaki ISHII
  • Patent number: 10830910
    Abstract: A radiation imaging apparatus is provided. The apparatus comprises pixels that configure a plurality of rows and a plurality of columns and are configured to obtain a radiation image, and a readout unit configured to readout signals from the pixels. The readout unit reads out a signal from pixels simultaneously selected, out of the pixels, in accordance with a row selection line connected in common for each row. In a case where a first pixel for detecting an incident dose during capturing of a radiation image that is set from the pixels is a defective pixel, the readout unit reads out a signal for detecting an incident dose from a second pixel selected from the pixels so that at least one row is arranged between the row that includes the first pixel and a row that includes the second pixel.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: November 10, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshiaki Ishii
  • Publication number: 20200303537
    Abstract: A semiconductor device includes a semiconductor portion, a first insulating film, a second insulating film, a first contact, a second contact, and a gate electrode. The first insulating film is provided on the semiconductor portion. The second insulating film is contacting the first insulating film, is provided on the semiconductor portion, and is thicker than the first insulating film. A through-hole is formed in the second insulating film. The first contact has a lower end connected to the semiconductor portion. The second contact has a lower portion disposed inside the through-hole and a lower end connected to the semiconductor portion. The gate electrode is positioned between the first contact and the second contact, is provided on the first insulating film, and is provided on a portion of the second insulating film other than the through-hole.
    Type: Application
    Filed: September 16, 2019
    Publication date: September 24, 2020
    Inventors: Tomoko Kinoshita, Daisuke Shinohara, Kanako Komatsu, Yoshiaki Ishii, Sudharsan Sundaram Prabhakaran
  • Patent number: 10779777
    Abstract: A radiographic imaging apparatus is provided. The apparatus comprises a sensor panel in which pixels are provided and a processor that generates an image that corresponds to the number of radiation photons incident on each of the pixels. In an imaging mode in which an image formed by radiation that has passed through a subject is generated, the processor generates a correction signal by correcting a value of a signal output from the conversion element of each of the pixels according to a correction coefficient for converting the value of the signal output from the conversion element on which a radiation photon was incident to a value that corresponds to an energy value of the radiation photon, and generates an image based on the number of correction signals of pixels on which a radiation photon was incident from among the correction signals of the pixels.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: September 22, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kosuke Terui, Atsushi Iwashita, Sho Sato, Yoshiaki Ishii
  • Patent number: 10782251
    Abstract: A radiation imaging apparatus includes a pixel array in which a plurality of pixels are arrayed and a processing unit configured to process pixel signals non-destructively read out from the respective pixels. The processing unit performs a first process of obtaining image data of a plurality of frames by repeatedly reading out image data while the pixel array is irradiated with radiation, with a group of pixel signals from the plurality of pixels corresponding to image data of one frame, and a second process of generating data for a radiation image based on data differences between the image data of the plurality of frames.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: September 22, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Sho Sato, Atsushi Iwashita, Kosuke Terui, Yoshiaki Ishii
  • Patent number: 10751022
    Abstract: A control unit controls a detector including a pixel array arranged in a matrix, a driving circuit that drives the pixel array by a changeable number of pixels, and a readout circuit that outputs an electrical signal from the pixel array. The control unit controls, with a change from a first image capturing operation for repeating a set of a first accumulation operation and a first image output operation a plurality of times at a first frame rate to a second image capturing operation for repeating a set of a second accumulation operation and a second image output operation a plurality of times at a second frame rate, so that the detector continuously repeats a set of the second accumulation operation and an initialization operation a plurality of times at the second frame rate in a period between the first image capturing operation and the second image capturing operation.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: August 25, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiaki Ishii, Tomoyuki Yagi, Katsuro Takenaka, Takuya Ryu
  • Patent number: 10698122
    Abstract: In order to provide a large-area radiation imaging apparatus that has an energy resolution while suppressing the occurrence of an artifact, the radiation imaging apparatus includes a detector and a signal processing unit. The detector includes a plurality of pixels for acquiring a pixel value in accordance with incident radiation. The signal processing unit performs signal processing for estimating energy of a radiation quantum of the incident radiation at a predetermined pixel included in the pixels using the amount of change in the pixel value of the predetermined pixel.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: June 30, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Atsushi Iwashita, Sho Sato, Kosuke Terui, Yoshiaki Ishii
  • Publication number: 20200186692
    Abstract: An information processing apparatus 14 includes a reception unit 22 that receives information based on a captured image obtained by an imaging device, an extraction unit 28 that extract a plurality of image data of which a degree of similarity with a subject specified by the information received by the reception unit 22 is equal to or greater than a predetermined value from a first image data group obtained by the bracket imaging and/or a second image data group obtained by non-bracket imaging which are accumulated in advance, a generation unit 30 that generates the imaging condition of the bracket imaging by using the plurality of image data extracted by the extraction unit 28, and a transmission unit 32 that transmits the imaging condition of the bracket imaging generated by the generation unit 30 to the imaging device.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 11, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Takeshi KAMIYA, Masahiko SUGIMOTO, Yoshiaki ISHII
  • Publication number: 20200124747
    Abstract: A radiation imaging apparatus includes a pixel array arranged with a plurality of pixels including conversion units configured to convert radiation into charges and accumulate the charges, a bias line connected to the conversion units of the plurality of pixels, a bias circuit configured to supply a bias potential to the bias line and detect a current flowing in the bias line, a noise reduction circuit configured to reduce, separately from the bias circuit, noise included in the bias potential from the bias circuit, and a switch configured to connect the noise reduction circuit to the bias line.
    Type: Application
    Filed: October 10, 2019
    Publication date: April 23, 2020
    Inventors: Tomoyuki Yagi, Yutaka Ishinari, Kai Suzuki, Yuki Iwabuchi, Yoshiaki Ishii
  • Publication number: 20200106970
    Abstract: A radiation imaging apparatus includes a pixel array including n pixel rows, where n?3, and a driving circuit configured to scan the pixel array from a first row toward an nth row, counting from one end of the pixel array. In a case where a region of interest is included in a partial region composed of pixel rows from an ith row to a jth row, where 1<i?j<n, the driving circuit starts scanning of the pixel array from the first row, and starts scanning of the pixel array from the first row again during scanning of pixel rows from a (j+1)th row to the nth row.
    Type: Application
    Filed: September 24, 2019
    Publication date: April 2, 2020
    Inventors: Toshikazu Tamura, Tomoyuki Yagi, Yuki Iwabuchi, Yoshiaki Ishii, Yutaka Ishinari
  • Publication number: 20190377166
    Abstract: Provided are an imaging apparatus, a signal processing method for an imaging apparatus, and a non-transitory computer readable recording medium storing a signal processing program for an imaging apparatus capable of capturing a high quality image with a compact configuration. An imaging lens 10A is composed of, in order from an object side, a first lens group G1 that is fixed during variable magnification, a second lens group G2 and a third lens group G3 that move during variable magnification, and a fourth lens group G4 that is fixed during variable magnification. The first lens group G1 is composed, in order from the object side, a first-a lens group G1a that is fixed during focusing, a first-b lens group G1b that moves during focusing, and a first lens group rear group G1c that is fixed during focusing. Fluctuation of an angle of view with focusing is corrected through image processing.
    Type: Application
    Filed: August 23, 2019
    Publication date: December 12, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Daiki KOMATSU, Yosuke NARUSE, Kenkichi HAYASHI, Yoshiaki ISHII, Yasunobu KISHINE
  • Publication number: 20190347773
    Abstract: An image processing device includes a transfer function input unit to which each of transfer functions of a plurality of imaging systems is input, a calculation unit that calculates a target resolution value which is a target value of recovery processing that recovers a plurality of captured images to be output from each of the plurality of the imaging systems based on the input transfer functions and a predetermined criterion, a recovery-filter generation unit that generates a recovery-filter used for the recovery processing with respect to each of the plurality of imaging systems based on the transfer functions of the plurality of imaging systems and a target resolution value, and a recovered image generation unit that performs the recovery processing with respect to the captured images acquired from the plurality of imaging systems by using the recovery-filter generated for each of the plurality of imaging systems to generate recovered images.
    Type: Application
    Filed: July 23, 2019
    Publication date: November 14, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Yosuke NARUSE, Yasunobu KISHINE, Kenkichi HAYASHI, Yoshiaki ISHII
  • Publication number: 20190340788
    Abstract: An image processing device includes a transfer function input unit to which each of transfer functions of a plurality of imaging-systems is input, a calculation unit that calculates a target resolution value which is a target value of recovery processing that recovers a plurality of captured images to be output from each of the plurality of the imaging-systems based on each of the input transfer functions and a predetermined criterion, a recovery filter generation unit that generates a recovery filter used for the recovery processing with respect to each of the plurality of imaging-systems based on each of the transfer functions of the plurality of imaging-systems and a target resolution value, and a recovered image generation unit that performs the recovery processing with respect to the captured images acquired from the plurality of imaging-systems by using the recovery filter generated for each of the plurality of imaging-systems to generate recovered images.
    Type: Application
    Filed: July 22, 2019
    Publication date: November 7, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Yosuke NARUSE, Yasunobu KISHINE, Kenkichi HAYASHI, Yoshiaki ISHII
  • Publication number: 20190295215
    Abstract: Provided are an image processing device, an image processing method, and a non-transitory computer readable recording medium storing a program which generate a favorable-quality combination image of which distortion is partially corrected with no calculation cost. A plurality of images captured by a plurality of cameras is input, and scaling processing is performed on at least one image of two images to be combined with each other among the plurality of images in a direction perpendicular to a direction in which the two images are combined. A continuous combination image is generated by combining the plurality of images after the scaling processing. The scaling processing is performed on at least the one image of the two images according to a predetermined scaling ratio, and a misalignment on an image of a combined portion of the two images to be combined with each other in the perpendicular direction is suppressed.
    Type: Application
    Filed: June 14, 2019
    Publication date: September 26, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Yasunobu KISHINE, Yoshiaki ISHII, Kenkichi HAYASHI, Yosuke NARUSE
  • Publication number: 20190288063
    Abstract: A semiconductor device includes a semiconductor substrate, a plurality of first insulators provided on in an upper portion of the semiconductor substrate, and a plurality of second insulators provided in the upper portion of on the semiconductor substrate. The second insulators are thicker than the first insulators. The first insulators and the second insulators are arranged alternately.
    Type: Application
    Filed: September 10, 2018
    Publication date: September 19, 2019
    Inventors: Kanako Komatsu, Yoshiaki Ishii
  • Publication number: 20190257956
    Abstract: A radiation imaging apparatus is provided. The apparatus comprises pixels that configure a plurality of rows and a plurality of columns and are configured to obtain a radiation image, and a readout unit configured to readout signals from the pixels. The readout unit reads out a signal from pixels simultaneously selected, out of the pixels, in accordance with a row selection line connected in common for each row. In a case where a first pixel for detecting an incident dose during capturing of a radiation image that is set from the pixels is a defective pixel, the readout unit reads out a signal for detecting an incident dose from a second pixel selected from the pixels so that at least one row is arranged between the row that includes the first pixel and a row that includes the second pixel.
    Type: Application
    Filed: February 15, 2019
    Publication date: August 22, 2019
    Inventor: Yoshiaki Ishii
  • Patent number: 10359520
    Abstract: An energy resolution decrease in a radiation imaging apparatus is suppressed. The apparatus includes a detector including a conversion unit configured to convert incident radiation photons into optical photons or charges, a pixel array including pixels arranged in a two-dimensional matrix and configured to obtain a pixel value in accordance with the optical photons or charges, and an output circuit including a plurality of output channels configured to output the pixel value from the pixel array, and a signal processing unit configured to perform signal processing of correcting the pixel value by using a correction coefficient in accordance with a pixel value obtaining process model in which a process of obtaining the pixel value output from the pixel array via the plurality of output channels on the basis of the optical photons or charges is modeled and obtaining an energy-discriminated radiographic image based on the corrected pixel value.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: July 23, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiaki Ishii, Atsushi Iwashita, Sho Sato, Kosuke Terui
  • Publication number: 20190220087
    Abstract: A simulation system includes a processor including hardware. The processor is configured to perform: acquiring tracking information for point-of-view information about a user wearing an HMD; moving a moving body, corresponding to the user, in a virtual space; controlling a virtual camera set as a first person point-of-view of the user; and generating an image as viewed from the virtual camera in the virtual space, as a display image on the HMD. The processor is configured to perform, in controlling the virtual camera, setting the virtual camera so that a position and/or an orientation of the virtual camera is changed based on the tracking information, but orientation change of the virtual camera corresponding to at least one of pitching and rolling is disabled or limited in a case where a traveling direction of the moving body changes.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 18, 2019
    Applicant: BANDAI NAMCO ENTERTAINMENT INC.
    Inventors: Yoshiaki ISHII, Shinya MAKINO