Patents by Inventor Koichi Fukuda

Koichi 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).

  • Patent number: 10341549
    Abstract: Disclosed are an image processing apparatus that can efficiently suppress the data amount of data indicating a spatial distribution and an angular distribution of light intensity and a control method of the same. The image processing apparatus obtains data indicating the spatial distribution and the angular distribution of the intensity of light beams that have passed through partial pupil areas obtained by dividing the exit pupil of an imaging optical system into a predetermined number. The image processing apparatus then reduces the bit depth or the number of tones of signals constituting the data based on the predetermined number.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: July 2, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koichi Fukuda
  • Patent number: 10332915
    Abstract: An electronic device includes a liquid crystal display device having a first substrate, a second substrate bonded to the first substrate, with liquid crystal material held between the first substrate and the second substrate, and an upper polarizing plate affixed to the second substrate. A protective member is disposed over the upper polarizing plate, and an adhesive member is disposed between the protective member and the upper polarizing plate without an air layer between the protective member and the upper polarizing plate. The protective member is configured as a protective cover of the electronic device.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: June 25, 2019
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Koichi Fukuda
  • Patent number: 10332259
    Abstract: An image processing apparatus inputs image data representing a plurality of images from mutually different viewpoints, estimates first information indicating a disparity between the plurality of images by comparing image regions each having a first size between the plurality of images, and identifies image regions each having a second size different from the first size, between the plurality of images, based on the first information estimated. The estimation estimates second information indicating the magnitude of a disparity between the plurality of images in the identified image regions by comparing the image regions each having the second size between the plurality of images.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: June 25, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohiro Nishiyama, Koichi Fukuda
  • Patent number: 10325356
    Abstract: An image processing device includes at least one processor that acquires a plurality of viewpoint images, and selectively applies a plurality of different image processings to image data based on the plurality of viewpoint images. The plurality of different image processings includes an adjustment process of adjusting a perceived resolution of an image, the adjustment process including a shift synthesis process of relatively shifting the plurality of viewpoint images to synthesize the plurality of viewpoint images that are relatively shifted, and a viewpoint change process of changing a viewpoint by changing a weighting coefficient when the plurality of viewpoint images are synthesized. In addition, the at least one processor sets the image processing by the image processing unit, exclusively setting one of the plurality of different image processings and a parameter of the image processing set by the setting unit to be applied to the image data.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: June 18, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Jobara, Koichi Fukuda
  • Patent number: 10298867
    Abstract: The imaging device includes a first pixel group and a second pixel group that include a plurality of pixels each having a plurality of photoelectric conversion portions that are separated by an isolation portion and arranged in a first direction and a plurality of transfer gates that transfer charges of the plurality of photoelectric conversion portions. A position of at least a part of the isolation portion within each of the pixels of the first pixel group and a position of at least a part of the isolation portion within each of the pixels of the second pixel group are shifted relative to each other in the first direction. Respective widths of portions where the plurality of separated photoelectric conversion portions overlap with the plurality of transfer gates in a planar view are the same.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: May 21, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshiaki Takada, Masaaki Iwane, Shoji Kono, Koichi Fukuda, Junichi Saito, Yumi Takao
  • Patent number: 10279742
    Abstract: An image capture device is mounted in a vehicle. The image capture device includes: an image capture unit; and a setting unit that sets an image capture condition for each region of the image capture unit each having a plurality of pixels, or for each pixel, based upon at least one of a state exterior to the vehicle and a state of the vehicle.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: May 7, 2019
    Assignee: NIKON CORPORATION
    Inventors: Akiko Shiga, Toru Miyakoshi, Satoshi Yamaguchi, Akira Kinoshita, Kaoru Yoshino, Hitomi Naganuma, Takashi Kuriyama, Koichi Fukuda, Yuki Kita, Koji Nagaoka, Tomoya Nakagawa, Masakazu Sekiguchi, Takashi Shionoya
  • Publication number: 20190098210
    Abstract: An image processing apparatus includes at least one processor operatively coupled to a memory, and serving as a determiner configured to determine a weight coefficient of a first region in each of a plurality of parallax images, and an image generator configured to synthesize the plurality of parallax images based on the weight coefficient to generate an output image. In one aspect, the weight coefficient is set to reduce a blur of a second object that is at a closer range side than a first object in the first region. In another aspect, a sum of the weight coefficients of the plurality of parallax images is constant in the first region.
    Type: Application
    Filed: November 30, 2018
    Publication date: March 28, 2019
    Inventor: Koichi Fukuda
  • Patent number: 10204943
    Abstract: An image sensor includes a plurality of pixels. At least a pixel of the plurality of pixels includes a plurality of photoelectric converters arranged in a semiconductor substrate and a light waveguide provided for the plurality of photoelectric converters. The light waveguide includes a main waveguide surrounded by an insulation film so as to pass light entering the plurality of photoelectric converters, and a plurality of sub waveguides each arranged between the main waveguide and a corresponding photoelectric converter of the plurality of photoelectric converters. The plurality of sub waveguides are separated from each other by a separator including an electrically conductive member.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: February 12, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sho Suzuki, Hideomi Kumano, Koki Takami, Koichi Fukuda, Kohei Okamoto, Tomoyuki Tezuka
  • Patent number: 10200622
    Abstract: An image processing method including generating a captured image corresponding to a pupil region from an input image acquired by an image sensor in which a plurality of pixels each having a plurality of photoelectric conversion parts for receiving light fluxes passing through the different pupil partial regions of an image-forming optical system is arrayed, generating, from the input image, viewpoint images at each of the different pupil partial regions, generating corrected viewpoint images by executing light amount correction processing of each of the viewpoint images based on the captured image and the viewpoint images, executing gamma adjustment of the captured image and gamma adjustment of the corrected viewpoint images based on a signal luminance distribution of the captured image and signal luminance distributions of the corrected viewpoint images, and combining the captured image and the corrected viewpoint images according to subject luminance.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: February 5, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koichi Fukuda
  • Publication number: 20190028640
    Abstract: An image processing apparatus comprises at least one processor or circuit configured to perform the operations of following units: an obtaining unit configured to obtaining an image signal containing intensity information and angle information of an incident light beam, an operating unit configured to obtain a viewpoint changing operation and a focus position changing operation, and a processing unit configured to generate, based on a plurality of viewpoint images obtained based on the image signal, a display image by changing a viewpoint in accordance with the viewpoint changing operation, and changing a focus position in accordance with the focus position changing operation.
    Type: Application
    Filed: September 21, 2018
    Publication date: January 24, 2019
    Inventors: Akihiko Kanda, Koichi Fukuda, Yuki Yoshimura
  • Publication number: 20190019766
    Abstract: A semiconductor device 100 of the present invention includes a front end and back ends A and B, each including a plurality of layers. Further, in the plurality of layers of the back end B, (i) circuits 22, 23, and 24 having a security function are provided in at least one layer having a wiring pitch of 100 nm or more, (ii) a circuit having a security function is provided in at least one wiring layer in M5 or higher level (M5, M6, M7, . . . ), (iii) a circuit having a security function is provided in at least one layer, for which immersion ArF exposure does not need to be used, or (iv) a circuit having a security function is provided in at least one layer that is exposed by using an exposure wavelength of 200 nm or more.
    Type: Application
    Filed: August 3, 2016
    Publication date: January 17, 2019
    Inventors: Yohei Hori, Yongxun Liu, Shinichi Ouchi, Tetsuji Yasuda, Meishoku Masahara, Toshifumi Irisawa, Kazuhiko Endo, Hiroyuki Ota, Tatsuro Maeda, Hanpei Koike, Yasuhiro Ogasahara, Toshihiro Katashita, Koichi Fukuda
  • Publication number: 20190014264
    Abstract: An imaging element of an imaging apparatus has a configuration in which a plurality of pixels provided with a plurality of photoelectric conversion units for receiving light fluxes transmitting each of different pupil partial regions of an image forming optical system are arrayed. A CPU performs control to acquire a plurality of viewpoint images corresponding to different pupil partial regions from the imaging element and to generate output images using an image processing unit. The CPU and the image processing unit sets a detection range of an image shift amount using a photographing condition of an input image and a conversion coefficient for a conversion an image shift amount to a defocus amount, generates an image shift amount distribution of the detection range on the basis of a plurality of viewpoint images, and generates an image shift difference amount distribution. Image processing in accordance with the image shift amount distribution is performed to generate refocused images as output images.
    Type: Application
    Filed: June 22, 2018
    Publication date: January 10, 2019
    Inventors: Akihiko Kanda, Koichi Fukuda
  • Patent number: 10171732
    Abstract: An image processing apparatus includes at least one processor operatively coupled to a memory. The at least one processor functions as a determiner configured to determine a weight coefficient that varies depending on a position in each of a plurality of parallax images, and an image generator configured to synthesize the plurality of parallax images based on the weight coefficient to generate an image. In addition, a sum of the weight coefficients of the plurality of parallax images is constant with respect to all positions in the plurality of parallax images.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: January 1, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koichi Fukuda
  • Patent number: 10150916
    Abstract: The present invention provides a soil erosion prevention agent which is excellent in the freeze-thaw stability while maintaining the soil erosion prevention effect. A soil erosion prevention agent of the present invention comprises a water-borne resin emulsion; and a water-soluble polymer, wherein a content of the water-borne resin emulsion is 99 to 93 mass %, a content of the water-soluble polymer is 1 to 7 mass %, and the water-borne resin emulsion contains 0.01 to 0.10 parts by mass of a structural unit derived from a polyfunctional monomer with respect to 100 parts by mass of a structural unit derived from a main monomer.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: December 11, 2018
    Assignee: DENKA COMPANY LIMITED
    Inventors: Koichi Fukuda, Hironori Konishi, Kazuhiro Kote
  • Publication number: 20180320070
    Abstract: The present invention provides a soil erosion prevention agent which is excellent in the freeze-thaw stability while maintaining the soil erosion prevention effect. A soil erosion prevention agent of the present invention comprises a water-borne resin emulsion; and a water-soluble polymer, wherein a content of the water-borne resin emulsion is 99 to 93 mass %, a content of the water-soluble polymer is 1 to 7 mass %, and the water-borne resin emulsion contains 0.01 to 0.10 parts by mass of a structural unit derived from a polyfunctional monomer with respect to 100 parts by mass of a structural unit derived from a main monomer.
    Type: Application
    Filed: November 30, 2016
    Publication date: November 8, 2018
    Applicant: Denka Company Limited
    Inventors: Koichi FUKUDA, Hironori KONISHI, Kazuhiro KOTE
  • Publication number: 20180284389
    Abstract: Light quantity information of an imaging optical system is acquired according to a focus detection position in an imaging screen. Conversion is performed from the light quantity information and a first aperture value of the imaging optical system, so that the first aperture value is converted into a second aperture value according to the focus detection position. A conversion coefficient is set according to the second aperture value and an exit pupil distance. A correction value to correct output signals from an imaging unit is obtained according to the second aperture value and an exit pupil distance.
    Type: Application
    Filed: June 6, 2018
    Publication date: October 4, 2018
    Inventors: Koichi Fukuda, Yuki Yoshimura
  • Publication number: 20180278830
    Abstract: An image capturing apparatus includes: a focus detection unit configured to detect a focus state of an imaging optical system; a reliability determination unit configured to determine reliability of the focus detection; and a control unit configured to control an opening of an aperture of the imaging optical system, wherein the control unit, if the reliability determination unit determines that reliability of the focus detection performed in a state in which the opening of the aperture is controlled to a first aperture opening state is less than a threshold value, changes the aperture to a second aperture opening state in which the opening of the aperture is reduced relative to the first aperture opening state, and wherein the control unit does not change the aperture to the second aperture opening state if a predetermined condition is satisfied.
    Type: Application
    Filed: March 20, 2018
    Publication date: September 27, 2018
    Inventors: Hideyuki Hamano, Koichi Fukuda
  • Publication number: 20180278871
    Abstract: The imaging device includes a first pixel group and a second pixel group that include a plurality of pixels each having a plurality of photoelectric conversion portions that are separated by an isolation portion and arranged in a first direction and a plurality of transfer gates that transfer charges of the plurality of photoelectric conversion portions. A position of at least a part of the isolation portion within each of the pixels of the first pixel group and a position of at least a part of the isolation portion within each of the pixels of the second pixel group are shifted relative to each other in the first direction. Respective widths of portions where the plurality of separated photoelectric conversion portions overlap with the plurality of transfer gates in a planar view are the same.
    Type: Application
    Filed: May 29, 2018
    Publication date: September 27, 2018
    Inventors: Yoshiaki Takada, Masaaki Iwane, Shoji Kono, Koichi Fukuda, Junichi Saito, Yumi Takao
  • Publication number: 20180255231
    Abstract: An image capturing apparatus in which a plurality of pixels each having a plurality of photoelectric conversion units for receiving light fluxes that have passed through different partial pupil regions of an imaging optical system are arrayed, wherein an entrance pupil distance Zs of the image sensor with respect to a minimum exit pupil distance Lmin of the imaging optical system and the maximum exit pupil distance Lmax of the imaging optical system satisfies a condition of 4 ? L min ? L max L min + 3 ? L max < Z S < 4 ? L min ? L max 3 ? L min + L max .
    Type: Application
    Filed: May 8, 2018
    Publication date: September 6, 2018
    Inventor: Koichi Fukuda
  • Publication number: 20180247961
    Abstract: In an image sensor comprising a plurality of imaging pixels, each pixel includes: a microlens for guiding incident light into a corresponding one of the plurality of imaging pixels, a color filter transmitting light of a predetermined wavelength band, a first photoelectric conversion unit for photoelectrically converting the light transmitted through the color filter, and a second photoelectric conversion unit provided below the first photoelectric conversion unit with a predetermined space therebetween. The first photoelectric conversion unit is provided with a first electrode provided to acquire a first signal from a first region of the first photoelectric conversion unit and a second electrode provided to acquire a second signal from a second region different from the first region. A light transmittance of the first photoelectric conversion unit with respect to the predetermined wavelength band is higher than 50%.
    Type: Application
    Filed: February 9, 2018
    Publication date: August 30, 2018
    Inventors: Kohei Okamoto, Koichi Fukuda