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: 11422335
    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: Grant
    Filed: June 14, 2021
    Date of Patent: August 23, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Koichi Fukuda
  • Patent number: 11417697
    Abstract: An imaging device suitable for focus detection of a pupil division phase difference method includes: a light receiving unit provided on a first surface side of a semiconductor substrate and having a plurality of pixels arranged in a two-dimensional form; and a read-out circuit provided on a second surface side of the semiconductor substrate opposite to the first surface side and configured to read signals from the pixels. Each of pixels has at least two photoelectric conversion elements and a separation region which is a region between the two photoelectric conversion elements and a separation region control electrode arranged on the second surface side of the separation region and configured to control a potential of the separation region.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: August 16, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kohei Okamoto, Koichi Fukuda, Shunichi Wakashima
  • Publication number: 20220250995
    Abstract: The present invention relates to a coating composition comprising: 10 to 80 wt % of cerium oxide comprising a dopant based upon the total weight of the composition, wherein said dopant is selected from iron oxide, cobalt oxide, chromium oxide, lanthanum oxide, or mixtures thereof, and the atomic ratio of dopant metal to cerium is in the range 0.01:1 to 0.5:1; and 10 to 50 wt % of binder based upon the total weight of the composition.
    Type: Application
    Filed: July 2, 2020
    Publication date: August 11, 2022
    Inventors: Jaturong Jitputti, Koichi Fukuda, Doni Daniel, William Lee, Noppong Worapipat
  • Publication number: 20220254820
    Abstract: An apparatus includes pixels on a substrate. Each pixel includes a first portion, a second, and a microlens. The substrate has a first surface on an incidence side and a second surface opposite to the first surface, and includes an inter-pixel portion isolating adjacent pixels from each other, and an intra-pixel portion isolating the first and second portions from each other. The inter-pixel portion includes a first region located adjacently to the first surface, and a second region located adjacently to the second surface. The intra-pixel portion includes a third region located adjacently to the first surface, and a fourth region located adjacently to the second surface. The first and third regions are shifted with respect to the second and fourth regions, respectively, in an identical direction that is a direction orthogonal to a longitudinal direction of the intra-pixel portion in plan view from the first surface.
    Type: Application
    Filed: January 31, 2022
    Publication date: August 11, 2022
    Inventors: Kazuya Igarashi, Hajime Ikeda, Shunichi Wakashima, Kohei Okamoto, Koichi Fukuda
  • Patent number: 11388383
    Abstract: An image processing apparatus includes an acquisition unit which acquires a parallax image generated based on a signal of a photoelectric converter among a plurality of photoelectric converters which receive light beams passing through partial pupil regions of an imaging optical system different from each other, and acquires a captured image generated by combining signals of the plurality of photoelectric converters, and an image processing unit which performs correction process so as to reduce a defect included in the parallax image based on the captured image.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: July 12, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koichi Fukuda
  • Publication number: 20220137328
    Abstract: One embodiment of the present invention provides an image processing method, the method comprising: acquiring a plurality of viewpoint images; generating a contrast distribution from the plurality of viewpoint images; and generating an output image by performing image processing in accordance with the contrast distribution with respect to an image based on the plurality of viewpoint images.
    Type: Application
    Filed: January 7, 2022
    Publication date: May 5, 2022
    Inventor: Koichi Fukuda
  • Publication number: 20220137441
    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: Application
    Filed: January 13, 2022
    Publication date: May 5, 2022
    Inventor: Koichi FUKUDA
  • Patent number: 11297271
    Abstract: An image sensor comprising pixels each includes, an photoelectric conversion unit, a first inner-layer lens, a second inner-layer lens, and an on-chip microlens. A light-shielding wall around the second inner-layer lens is provided between adjacent pixels. A first positional difference between center positions of the first inner-layer lens and the photoelectric conversion unit, a second positional difference between center positions of the second inner-layer lens and the photoelectric conversion unit, and a third positional difference between center positions of the on-chip microlens and the photoelectric conversion unit satisfy: the second positional difference<the first positional difference<the third positional difference.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: April 5, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shunichi Wakashima, Koichi Fukuda, Kohei Okamoto
  • Publication number: 20220097605
    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: Application
    Filed: December 9, 2021
    Publication date: March 31, 2022
    Applicant: 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
  • Patent number: 11262608
    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: October 5, 2020
    Date of Patent: March 1, 2022
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Koichi Fukuda
  • Publication number: 20220028914
    Abstract: In an image sensor having a plurality of pixels including focus detection pixels that outputs signals from which a pair of focus detection signals having parallax can be obtained based on light flux passing through different pupil regions of an imaging optical system, each pixel comprises: at least one photoelectric conversion unit; and a microlens optical system provided on a side on which light is incident with respect to the photoelectric conversion unit, wherein a shape of a principal curved surface of the microlens optical system is such that a first curvature of the microlens optical system at a first distance from an optical axis of the microlens optical system is larger than a second curvature of the microlens optical system at a second distance which is farther from the optical axis of the microlens optical system than the first distance.
    Type: Application
    Filed: October 8, 2021
    Publication date: January 27, 2022
    Inventors: Koichi Fukuda, Kohei Okamoto, Shunichi Wakashima
  • Patent number: 11220215
    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: December 8, 2020
    Date of Patent: January 11, 2022
    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: 20210380840
    Abstract: The present invention relates to a thermal insulation coating comprising at least two layers of coating, wherein a composition of the first layer comprises a silicone-based binder and a hollow glass microsphere, a composition of the second layer comprises an acrylic polymer and a hollow glass microsphere. Said thermal insulation coating is suitable for high-temperature applications, capable of adhering to a surface effectively, environmentally friendly, as well as providing high thermal reduction and low thermal conductivity.
    Type: Application
    Filed: October 8, 2019
    Publication date: December 9, 2021
    Applicant: SCG CHEMICALS CO., LTD
    Inventors: Noppakun SANPO, Koichi FUKUDA, Jaturong JITPUTTI, Darapond TRIAMPO, Supan YODYINGYONG
  • Patent number: 11184521
    Abstract: A focus detection apparatus configured to perform a focus detection using a pixel signal obtained by photoelectrically converting light passing through different pupil areas in an imaging optical system includes an acquirer configured to acquire the pixel signal, a signal generator configured to generate a plurality of focus detection signals corresponding to the different pupil areas using the pixel signal, and a focus detector configured to calculate a detected defocus amount based on the plurality of focus detection signals, and to calculate a corrected defocus amount by correcting the detected defocus amount based on a phase transfer function corresponding to the different pupil areas.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: November 23, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koichi Fukuda
  • Publication number: 20210309574
    Abstract: The present invention relates to a thermal emissivity coating composition comprising: a) an emissivity agent in an amount from 30 to 65% by weight with respect to the total weight of the thermal emissivity coating composition; b) a filler selected from the group consisting of oxides of aluminum, silicon, magnesium, calcium, boron and mixtures of two or more thereof, in an amount from 10 to 35 wt % with respect to the total weight of the thermal emissivity coating composition; and c) a binder in an amount from 12 to 52 wt % with respect to the total weight of the thermal emissivity coating composition; wherein the emissivity agent comprises cobalt oxide in an amount from 10 to 25 wt %, preferably 12 to 25 wt % with respect to the total weight of the thermal emissivity coating composition and further comprises chromium oxide and titanium oxide.
    Type: Application
    Filed: July 30, 2019
    Publication date: October 7, 2021
    Inventors: Somkeat SUEBTHAWILKUL, Kanokon THONGROD, Thanapong PRASERTPHOL, Teewin TUAPRAKONE, Jaturong JITPUTTI, Koichi FUKUDA
  • Patent number: 11140311
    Abstract: An apparatus includes a generation unit configured to generate a plurality of respective focus detection signals corresponding to different pupil areas by using pixel signals acquired by pixels, and a detection unit configured to calculate an image deviation amount based on the plurality of focus detection signals and detect a defocus amount from the image deviation amount and a conversion coefficient. The detection unit calculates the conversion coefficient based on a pupil eccentric amount of an image sensor, an incident pupil distance of the image sensor, and opening information about a plurality of frames in an imaging optical system.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: October 5, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Koichi Fukuda, Yu Inagaki
  • Publication number: 20210302693
    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: June 14, 2021
    Publication date: September 30, 2021
    Inventor: Koichi Fukuda
  • Publication number: 20210296383
    Abstract: Provided is a photoelectric conversion device including: a first substrate having a first face; photodiodes arranged in the first substrate and each having a first region that generates signal charges by photoelectrically converting an incident light and a second region that receives the signal charges moving from the first region; a first isolation region arranged in the first substrate at a first depth and including a first portion extending in a first direction so as to isolate the second regions from each other; and a second isolation region arranged in the first substrate at a second depth deeper than the first depth from the first face, and including a second portion extending in a second direction intersecting the first direction in plan view so as to isolate the first regions from each other, and the first and second portions are partially overlapped with each other in plan view.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Inventors: Fumihiro Inui, Junji Iwata, Hajime Ikeda, Koichi Fukuda, Kohei Okamoto
  • Publication number: 20210280619
    Abstract: An imaging device suitable for focus detection of a pupil division phase difference method includes: a light receiving unit provided on a first surface side of a semiconductor substrate and having a plurality of pixels arranged in a two-dimensional form; and a read-out circuit provided on a second surface side of the semiconductor substrate opposite to the first surface side and configured to read signals from the pixels. Each of pixels has at least two photoelectric conversion elements and a separation region which is a region between the two photoelectric conversion elements and a separation region control electrode arranged on the second surface side of the separation region and configured to control a potential of the separation region.
    Type: Application
    Filed: March 5, 2021
    Publication date: September 9, 2021
    Inventors: Kohei Okamoto, Koichi Fukuda, Shunichi Wakashima
  • Patent number: 11067772
    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: Grant
    Filed: September 20, 2019
    Date of Patent: July 20, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Koichi Fukuda