Patents by Inventor Masaaki Fukuda

Masaaki Fukuda 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).

  • Publication number: 20220254063
    Abstract: A gaze point estimation processing apparatus in an embodiment includes a storage configured to store a neural network as a gaze point estimation model and one or more processors. The storage stores a gaze point estimation model generated through learning based on an image for learning and information relating to a first gaze point for the image for learning. The one or more processors estimate information relating to a second gaze point with respect to an image for estimation from the image for estimation using the gaze point estimation model.
    Type: Application
    Filed: April 28, 2022
    Publication date: August 11, 2022
    Applicant: Preferred Networks, Inc.
    Inventor: Masaaki FUKUDA
  • Patent number: 11341680
    Abstract: A gaze point estimation processing apparatus in an embodiment includes a storage configured to store a neural network as a gaze point estimation model and one or more processors. The storage stores a gaze point estimation model generated through learning based on an image for learning and information relating to a first gaze point for the image for learning. The one or more processors estimate information relating to a second gaze point with respect to an image for estimation from the image for estimation using the gaze point estimation model.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 24, 2022
    Assignee: PREFERRED NETWORKS, INC.
    Inventor: Masaaki Fukuda
  • Patent number: 10986988
    Abstract: An electronic endoscope has a light source configured to emit normal light toward an object and a rotating filter configured to be positioned in the path of light that passes from the light source to an image sensor. The rotating filter has an optical band-pass filter and a ND filter. The electronic endoscope has further a rotation controller that synchronizes a light-path traverse-interval of the band-pass filter and a light-path traverse-interval of the ND filter with a field/frame interval; and an image generator that generates a normal image from broadband image-pixel signals and generates a spectral image from specific-band image-pixel signals. The image generator has a brightness adjuster that increases a brightness level of the spectral image. Then, the ND filter reduces an amount of light emitted from the light source to an amount of light that corresponds to an increased brightness of the spectral image.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: April 27, 2021
    Assignee: HOYA CORPORATION
    Inventor: Masaaki Fukuda
  • Publication number: 20210104346
    Abstract: A coil component includes a drum core including a winding core portion extending in a first direction and a pair of flange portions provided at both ends of the winding core portion. At least one flange of the pair of flange portions has at least one step or gradient portion. A terminal electrode is provided on the step or gradient portion, and a wire is wound around the winding core portion with an end bonded to the terminal electrode. The terminal electrode includes plural metal layers, an outermost layer of which is an Sn film having a flattened mounting surface. The flattened mounting surface overlaps the step or gradient portion when seen in a second direction perpendicular to the first direction.
    Type: Application
    Filed: October 6, 2020
    Publication date: April 8, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Shuhei SATO, Yuki KANBE, Hiroyuki MASO, Masaaki FUKUDA
  • Publication number: 20210098174
    Abstract: A drum-like core of a coil component includes a winding core portion, a flange portion, and a terminal electrode formed on a mounting surface of the flange portion. The mounting surface of the flange portion includes a flat region and a lower region. The terminal electrode has a flat surface, the flat surface being parallel with the length direction in an outer surface of the terminal electrode, covering the mounting surface of the flange portion, and being longer than the flat region in maximum measurement extending in parallel with the length direction.
    Type: Application
    Filed: September 23, 2020
    Publication date: April 1, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Shuhei SATO, Yuki KANBE, Hiroyuki MASO, Masaaki FUKUDA
  • Patent number: 10932660
    Abstract: An endoscope light source device is constituted by a first light source unit that emits light in a first wavelength band, a second light source unit that emits light in a second wavelength band, a light path combining means for combining the light paths of the light emitted from the first and second light source units, and a light source control means for controlling light emission of the light source units separately. When the light source units are driven to emit light in a first mode, the respective wavelength bands of light are emitted at a first intensity ratio and combined with each other to obtain normal light, which is supplied to an endoscope.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: March 2, 2021
    Assignee: HOYA CORPORATION
    Inventors: Kunihiko Onobori, Masaaki Fukuda
  • Patent number: 10905318
    Abstract: An endoscope system includes a processor and displays a distribution image of living substance feature amounts obtained from an imaged image of a living tissue. The processor calculates the living substance feature amount in the living tissue, for example, an amount of hemoglobin and oxygen saturation of the hemoglobin using components of color image data of the living tissue illuminated with at least two lights, generates the feature amount distribution image illustrating a distribution of the living substance feature amounts, and controls display of the feature amount distribution image in order to display the generated feature amount distribution image so as to be superimposed on the image of the living tissue.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: February 2, 2021
    Assignee: HOYA CORPORATION
    Inventors: Masaaki Fukuda, Yoshimi Obara, Toru Chiba
  • Patent number: 10827914
    Abstract: An endoscope system generates first to third color image data by imaging biological tissue illuminated with first to third light. The endoscope system uses a first light intensity ratio of the first light and the second light, and/or an imaging sensitivity of the image sensor, to correct a first ratio between multiple components of the first and second color image data, and the endoscope system calculates a first characteristic amount of the biological tissue based on the first corrected ratio. Furthermore, the endoscope system uses a second light intensity ratio between the second light and the third light to correct a second ratio between multiple components of the second and third color image data, and the endoscope system calculates a second characteristic amount of the biological tissue based on the second corrected ratio and the first characteristic amount.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: November 10, 2020
    Assignee: HOYA CORPORATION
    Inventor: Masaaki Fukuda
  • Patent number: 10806335
    Abstract: A processor of an endoscope system uses components of color image data of biological tissue illuminated by at least two types of light to generate an oxygen saturation distribution image of hemoglobin in the biological tissue and to calculate a certainty of an oxygen saturation. Furthermore, the processor controls a display mode of the oxygen saturation distribution image according to the degree of the certainty. The certainty drops if the value of a first component a of the color image data is lower than a lower limit threshold value. The certainty drops if the value of a second component b of the color image data is greater than an upper limit threshold value. The lower limit threshold value and the upper limit threshold value are values of two different pieces of color image data.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: October 20, 2020
    Assignee: HOYA CORPORATION
    Inventor: Masaaki Fukuda
  • Publication number: 20200196847
    Abstract: An endoscope light source device is constituted by a first light source unit that emits light in a first wavelength band, a second light source unit that emits light in a second wavelength band, a light path combining means for combining the light paths of the light emitted from the first and second light source units, and a light source control means for controlling light emission of the light source units separately. When the light source units are driven to emit light in a first mode, the respective wavelength bands of light are emitted at a first intensity ratio and combined with each other to obtain normal light, which is supplied to an endoscope.
    Type: Application
    Filed: February 14, 2020
    Publication date: June 25, 2020
    Applicant: HOYA CORPORATION
    Inventors: Kunihiko ONOBORI, Masaaki FUKUDA
  • Patent number: 10646110
    Abstract: An endoscope system includes: a light source unit that alternatingly emits first illumination light and second illumination light; an imaging means for generating a first image signal of a subject illuminated by the first illumination light, and generating a second image signal of the subject illuminated by the second illumination light; a first image signal storing means for storing the first image signals; a second image signal storing means for storing the second image signals; an image evaluation value calculating means for calculating at least one of image evaluation values based on the first image signals and image evaluation values based on the second image signals; an image signal selecting means for selecting a first display image signal and selecting a second display image signal based on the image evaluation values; and a displaying means for displaying a first image and a second image that are based on the first display image signal and the second display image signal respectively.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: May 12, 2020
    Assignee: HOYA CORPORATION
    Inventor: Masaaki Fukuda
  • Patent number: 10610091
    Abstract: An endoscope light source device is constituted by a first light source unit that emits light in a first wavelength band, a second light source unit that emits light in a second wavelength band, a light path combining means for combining the light paths of the light emitted from the first and second light source units, and a light source control means for controlling light emission of the light source units separately. When the light source units are driven to emit light in a first mode, the respective wavelength bands of light are emitted at a first intensity ratio and combined with each other to obtain normal light, which is supplied to an endoscope.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: April 7, 2020
    Assignee: HOYA CORPORATION
    Inventors: Kunihiko Onobori, Masaaki Fukuda
  • Patent number: 10575718
    Abstract: An endoscope system captures images of biological tissue when illuminated with first to third light, and generates first to third color image data. The amount of hemoglobin in the biological tissue and the oxygen saturation of the hemoglobin are calculated using components of the first to third color image data, an oxygen saturation distribution image that shows the distribution of the oxygen saturation is generated, and control is performed such that the generated oxygen saturation distribution image is displayed superimposed on a captured image of the biological tissue on a display. The oxygen saturation is calculated based on the amount of hemoglobin and a second ratio obtained using components of the color image data. The transparency is adjusted for pixels in which the value of the second ratio is outside an allowable range for the second ratio determined according to the amount of hemoglobin.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: March 3, 2020
    Assignee: HOYA CORPORATION
    Inventor: Masaaki Fukuda
  • Publication number: 20190304136
    Abstract: A gaze point estimation processing apparatus in an embodiment includes a storage configured to store a neural network as a gaze point estimation model and one or more processors. The storage stores a gaze point estimation model generated through learning based on an image for learning and information relating to a first gaze point for the image for learning. The one or more processors estimate information relating to a second gaze point with respect to an image for estimation from the image for estimation using the gaze point estimation model.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 3, 2019
    Applicant: Preferred Networks, Inc.
    Inventor: Masaaki FUKUDA
  • Publication number: 20190239735
    Abstract: An endoscope system generates first to third color image data by imaging biological tissue illuminated with first to third light. The endoscope system uses a first light intensity ratio of the first light and the second light, and/or an imaging sensitivity of the image sensor, to correct a first ratio between multiple components of the first and second color image data, and the endoscope system calculates a first characteristic amount of the biological tissue based on the first corrected ratio. Furthermore, the endoscope system uses a second light intensity ratio between the second light and the third light to correct a second ratio between multiple components of the second and third color image data, and the endoscope system calculates a second characteristic amount of the biological tissue based on the second corrected ratio and the first characteristic amount.
    Type: Application
    Filed: September 1, 2017
    Publication date: August 8, 2019
    Applicant: HOYA CORPORATION
    Inventor: Masaaki FUKUDA
  • Publication number: 20190223705
    Abstract: An endoscope system includes a processor and displays a distribution image of living substance feature amounts obtained from an imaged image of a living tissue. The processor calculates the living substance feature amount in the living tissue, for example, an amount of hemoglobin and oxygen saturation of the hemoglobin using components of color image data of the living tissue illuminated with at least two lights, generates the feature amount distribution image illustrating a distribution of the living substance feature amounts, and controls display of the feature amount distribution image in order to display the generated feature amount distribution image so as to be superimposed on the image of the living tissue.
    Type: Application
    Filed: October 12, 2017
    Publication date: July 25, 2019
    Applicant: HOYA CORPORATION
    Inventors: Masaaki FUKUDA, Yoshimi OBARA, Toru CHIBA
  • Publication number: 20190223703
    Abstract: An endoscope system captures images of biological tissue when illuminated with first to third light, and generates first to third color image data. The amount of hemoglobin in the biological tissue and the oxygen saturation of the hemoglobin are calculated using components of the first to third color image data, an oxygen saturation distribution image that shows the distribution of the oxygen saturation is generated, and control is performed such that the generated oxygen saturation distribution image is displayed superimposed on a captured image of the biological tissue on a display. The oxygen saturation is calculated based on the amount of hemoglobin and a second ratio obtained using components of the color image data. The transparency is adjusted for pixels in which the value of the second ratio is outside an allowable range for the second ratio determined according to the amount of hemoglobin.
    Type: Application
    Filed: September 1, 2017
    Publication date: July 25, 2019
    Applicant: Hoya Corporation
    Inventor: Masaaki FUKUDA
  • Publication number: 20190216305
    Abstract: A processor of an endoscope system uses components of color image data of biological tissue illuminated by at least two types of light to generate an oxygen saturation distribution image of hemoglobin in the biological tissue and to calculate a certainty of an oxygen saturation. Furthermore, the processor controls a display mode of the oxygen saturation distribution image according to the degree of the certainty. The certainty drops if the value of a first component a of the color image data is lower than a lower limit threshold value. The certainty drops if the value of a second component b of the color image data is greater than an upper limit threshold value. The lower limit threshold value and the upper limit threshold value are values of two different pieces of color image data.
    Type: Application
    Filed: September 1, 2017
    Publication date: July 18, 2019
    Applicant: HOYA CORPORATION
    Inventor: Masaaki FUKUDA
  • Publication number: 20190208985
    Abstract: Provided is an electronic endoscope system including: image signal generation means for sequentially taking images of a subject sequentially irradiated with multiple types of irradiation light having different spectrums and generating image signals of the subject irradiated with the respective types of irradiation light as image signals of multiple systems; storage means having a predetermined correction value stored therein in advance; and spectral image generation means for generating a spectral image based on image signals of at least two systems among the image signals of multiple systems generated by the image signal generation means. When generating the spectral image based on the image signals of the at least two systems, the spectral image generation means corrects an image signal of at least one system among the image signals of the at least two systems based on the correction value stored in advance in the storage means.
    Type: Application
    Filed: September 1, 2017
    Publication date: July 11, 2019
    Applicant: HOYA CORPORATION
    Inventor: Masaaki FUKUDA
  • Publication number: 20190110672
    Abstract: An endoscope light source device is constituted by a first light source unit that emits light in a first wavelength band, a second light source unit that emits light in a second wavelength band, a light path combining means for combining the light paths of the light emitted from the first and second light source units, and a light source control means for controlling light emission of the light source units separately. When the light source units are driven to emit light in a first mode, the respective wavelength bands of light are emitted at a first intensity ratio and combined with each other to obtain normal light, which is supplied to an endoscope.
    Type: Application
    Filed: February 20, 2017
    Publication date: April 18, 2019
    Applicant: HOYA CORPORATION
    Inventors: Kunihiko ONOBORI, Masaaki FUKUDA