Patents by Inventor Kiyotomi Ogawa

Kiyotomi Ogawa 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: 11337595
    Abstract: When a first mode is set in an endoscope apparatus, a light source control unit causes a light source to be turned on during a period including all or a part of a period during which available storage periods of pixels in all simultaneous exposure lines. An imaging device generates a first image. When a second mode is set, the light source control unit causes the light source to be turned on during a period including all of the available storage period of the pixels in each of a plurality of rows. The imaging device generates a second image. The rolling distortion determination unit determines a situation of occurrence of rolling distortion using the first image and the second image.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: May 24, 2022
    Assignee: OLYMPUS CORPORATION
    Inventor: Kiyotomi Ogawa
  • Patent number: 11172174
    Abstract: In an imaging apparatus, two pupils of a pupil division optical system transmits light of a first wavelength band and light of a second wavelength band. An amount of components of the first wavelength band in first transmittance characteristics and second transmittance characteristics is more than an amount of components of the second wavelength band in the first transmittance characteristics and the second transmittance characteristics. An amount of components of the second wavelength band in third transmittance characteristics is more than an amount of components of the first wavelength band in the third transmittance characteristics. A processor is configured to generate a color image including a first signal that is based on the first transmittance characteristics as a first channel and a second signal that is based on the second transmittance characteristics as a second channel and a third channel.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: November 9, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Toshiaki Mikami, Kiyotomi Ogawa, Hideaki Takahashi, Munenori Fukunishi
  • Patent number: 10921577
    Abstract: In an endoscope device, an imaging device sequentially reads pixel signals from at least some of a plurality of pixels row by row during a first period. A control unit causes a light source to generate illumination light during a second period. The second period is at least a part of a period other than the first period. The control unit causes the light source to stop the generation of the illumination light during a third period. The third period is all of a period other than the second period. The control unit causes a switching unit to start switching of an imaging condition during the third period and complete the switching of the imaging condition during the third period.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: February 16, 2021
    Assignee: OLYMPUS CORPORATION
    Inventor: Kiyotomi Ogawa
  • Publication number: 20200314391
    Abstract: In an imaging apparatus, two pupils of a pupil division optical system transmits light of a first wavelength band and light of a second wavelength band. An amount of components of the first wavelength band in first transmittance characteristics and second transmittance characteristics is more than an amount of components of the second wavelength band in the first transmittance characteristics and the second transmittance characteristics. An amount of components of the second wavelength band in third transmittance characteristics is more than an amount of components of the first wavelength band in the third transmittance characteristics. A processor is configured to generate a color image including a first signal that is based on the first transmittance characteristics as a first channel and a second signal that is based on the second transmittance characteristics as a second channel and a third channel.
    Type: Application
    Filed: June 12, 2020
    Publication date: October 1, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Toshiaki MIKAMI, Kiyotomi OGAWA, Hideaki TAKAHASHI, Munenori FUKUNISHI
  • Patent number: 10620425
    Abstract: In a measurement apparatus, a first pupil is capable of transmitting first light of a first wavelength band, and a second pupil is capable of transmitting second light of a second wavelength band. An imaging device includes a plurality of first pixels generating first pixel signals based on third light of a third wavelength band transmitted through a first optical filter that is capable of transmitting the third light. The imaging device further includes a plurality of second pixels generating second pixel signals based on fourth light of a fourth wavelength band transmitted through a second optical filter that is capable of transmitting the fourth light. A light source outputs illumination light including only fifth light of a fifth wavelength band and sixth light of a sixth wavelength band not overlapping the fifth wavelength band.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: April 14, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Kiyotomi Ogawa, Naoki Yamamoto, Toshiyuki Noguchi
  • Patent number: 10573015
    Abstract: In a measuring device, a second objective optical system is arranged to have a parallax with respect to a first objective optical system. An imaging unit captures a first subject image formed through the first objective optical system at a first imaging timing and captures a second subject image formed through the second objective optical system at a second imaging timing different from the first imaging timing. A virtual image generating unit generates a virtual image based on the first subject image acquired in a case in which the imaging unit is assumed to capture the first subject image at the second imaging timing. A measurement processing unit measures a shape of a subject on the basis of a second image based on the second subject image and the virtual image.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: February 25, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Munenori Fukunishi, Hideaki Takahashi, Junichi Mori, Naoyuki Miyashita, Kiyotomi Ogawa, Yohei Sakamoto
  • Publication number: 20190324261
    Abstract: In an endoscope device, an imaging device sequentially reads pixel signals from at least some of a plurality of pixels row by row during a first period. A control unit causes a light source to generate illumination light during a second period. The second period is at least a part of a period other than the first period. The control unit causes the light source to stop the generation of the illumination light during a third period. The third period is all of a period other than the second period. The control unit causes a switching unit to start switching of an imaging condition during the third period and complete the switching of the imaging condition during the third period.
    Type: Application
    Filed: April 22, 2019
    Publication date: October 24, 2019
    Applicant: OLYMPUS CORPORATION
    Inventor: Kiyotomi OGAWA
  • Patent number: 10447939
    Abstract: An endoscope apparatus includes an imaging element, a video signal generating circuit, an illuminator, and one or more controllers. An imaging area in which a plurality of pixels are disposed includes a scanning area. In a case in which a first operation mode is set, the one or more controllers control the imaging element such that at least parts of the exposure periods of the pixels disposed in at least a part of the scanning area overlap each other. In a case in which a second operation mode is set, the one or more controllers control the illuminator such that the light source is turned on in a period in which at least parts of the exposure periods of the pixels disposed in at least a part of the scanning area overlap each other.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: October 15, 2019
    Assignee: Olympus Coproration
    Inventors: Eiichi Kobayashi, Yutaka Konomura, Masayoshi Yokota, Kiyotomi Ogawa
  • Patent number: 10379058
    Abstract: In a measurement device, an imaging unit generates a first image and a second image. A subject distance detection unit detects a subject distance. A motion detection unit detects an amount of motion of the imaging unit. A measurement availability determination unit determines whether or not measurement is executable by comparing the amount of motion with an allowable threshold value according to the subject distance. A measurement processing unit executes a measurement process on the basis of the first image and the second image when the measurement availability determination unit determines that the measurement is executable.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: August 13, 2019
    Assignee: OLYMPUS CORPORATION
    Inventors: Munenori Fukunishi, Naoyuki Miyashita, Kiyotomi Ogawa
  • Publication number: 20190239732
    Abstract: When a first mode is set in an endoscope apparatus, a light source control unit causes a light source to be turned on during a period including all or a part of a period during which available storage periods of pixels in all simultaneous exposure lines. An imaging device generates a first image. When a second mode is set, the light source control unit causes the light source to be turned on during a period including all of the available storage period of the pixels in each of a plurality of rows. The imaging device generates a second image. The rolling distortion determination unit determines a situation of occurrence of rolling distortion using the first image and the second image.
    Type: Application
    Filed: April 18, 2019
    Publication date: August 8, 2019
    Applicant: OLYMPUS CORPORATION
    Inventor: Kiyotomi OGAWA
  • Publication number: 20190064499
    Abstract: In a measurement apparatus, a first pupil is capable of transmitting first light of a first wavelength band, and a second pupil is capable of transmitting second light of a second wavelength band. An imaging device includes a plurality of first pixels generating first pixel signals based on third light of a third wavelength band transmitted through a first optical filter that is capable of transmitting the third light. The imaging device further includes a plurality of second pixels generating second pixel signals based on fourth light of a fourth wavelength band transmitted through a second optical filter that is capable of transmitting the fourth light. A light source outputs illumination light including only fifth light of a fifth wavelength band and sixth light of a sixth wavelength band not overlapping the fifth wavelength band.
    Type: Application
    Filed: August 28, 2018
    Publication date: February 28, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Kiyotomi OGAWA, Naoki YAMAMOTO, Toshiyuki NOGUCHI
  • Publication number: 20180364178
    Abstract: In a measurement device, an imaging unit generates a first image and a second image. A subject distance detection unit detects a subject distance. A motion detection unit detects an amount of motion of the imaging unit. A measurement availability determination unit determines whether or not measurement is executable by comparing the amount of motion with an allowable threshold value according to the subject distance. A measurement processing unit executes a measurement process on the basis of the first image and the second image when the measurement availability determination unit determines that the measurement is executable.
    Type: Application
    Filed: June 4, 2018
    Publication date: December 20, 2018
    Applicant: OLYMPUS CORPORATION
    Inventors: Munenori FUKUNISHI, Naoyuki MIYASHITA, Kiyotomi OGAWA
  • Publication number: 20180227476
    Abstract: An endoscope apparatus includes an imaging element, a video signal generating circuit, an illuminator, and one or more controllers. An imaging area in which a plurality of pixels are disposed includes a scanning area. In a case in which a first operation mode is set, the one or more controllers control the imaging element such that at least parts of the exposure periods of the pixels disposed in at least a part of the scanning area overlap each other. In a case in which a second operation mode is set, the one or more controllers control the illuminator such that the light source is turned on in a period in which at least parts of the exposure periods of the pixels disposed in at least a part of the scanning area overlap each other.
    Type: Application
    Filed: April 10, 2018
    Publication date: August 9, 2018
    Applicant: OLYMPUS CORPORATION
    Inventors: Eiichi KOBAYASHI, Yutaka KONOMURA, Masayoshi YOKOTA, Kiyotomi OGAWA
  • Publication number: 20180197306
    Abstract: In a measuring device, a second objective optical system is arranged to have a parallax with respect to a first objective optical system. An imaging unit captures a first subject image formed through the first objective optical system at a first imaging timing and captures a second subject image formed through the second objective optical system at a second imaging timing different from the first imaging timing. A virtual image generating unit generates a virtual image based on the first subject image acquired in a case in which the imaging unit is assumed to capture the first subject image at the second imaging timing. A measurement processing unit measures a shape of a subject on the basis of a second image based on the second subject image and the virtual image.
    Type: Application
    Filed: January 3, 2018
    Publication date: July 12, 2018
    Applicant: OLYMPUS CORPORATION
    Inventors: Munenori FUKUNISHI, Hideaki TAKAHASHI, Junichi MORI, Naoyuki MIYASHITA, Kiyotomi OGAWA, Yohei SAKAMOTO
  • Patent number: 10019643
    Abstract: A region-setting unit sets, in an image, a region based on one reference point designated by a user in the image or a predetermined region as an extraction region. An edge extraction unit extracts an edge of the subject based on an image of the extraction region. When a plurality of edges are extracted, a display control unit causes a line indicating the plurality of extracted edges to be displayed on a display unit together with the image. An edge selection unit selects a reference edge from among the plurality of extracted edges based on an instruction from the user. A three-dimensional coordinate calculation unit calculates three-dimensional coordinates corresponding to points in the image. A reference line calculation unit calculates a reference line on a space based on the three-dimensional coordinates corresponding to points constituting the reference edge.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: July 10, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Kiyotomi Ogawa
  • Patent number: 9157728
    Abstract: An endoscope apparatus includes: an imaging unit which takes an image of an object; a display which displays the image and a cursor; an illumination unit which illuminates the object; a pointing device which is for placing the cursor; and a control unit which continuously monitors a cursor position placed by the pointing device, and continuously controls the illumination unit in accordance with a luminance of a partial region of the image corresponding to the cursor position so as to modulate a luminance condition of the image.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: October 13, 2015
    Assignee: OLYMPUS CORPORATION
    Inventor: Kiyotomi Ogawa
  • Patent number: 8979743
    Abstract: The present invention is an endoscope device in which a portion of the optical system can be changed using an optical adaptor, provided with: an image pickup member for capturing an image that is input from an optical system that incorporates a reference scope or user scope, and an optical adaptor; a first recording medium that records a first information that includes at least distortion parameters of the reference scope which indicate the optical properties of the reference scope; a second recording medium that records a second information that includes at least distortion parameters of the user scope which indicate the optical properties of the user scope; and a distortion correcting member that corrects distortion in the image captured by the image pickup member when the user scope and the optical adaptor are combined, based on the first information which is read out from the first recording medium and the second information which is read out from the second recording medium.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: March 17, 2015
    Assignee: Olympus Corporation
    Inventors: Sumito Nakano, Fumio Hori, Kiyotomi Ogawa
  • Patent number: 8929628
    Abstract: The measuring unit computes at least one of an area and a perimetrical length of a polygon, based on three or more measuring points including an indeterminate point of which a position is changed by a move instruction input through an operation unit, wherein the measuring points are designated on the image by an instruction of a user input through the operation unit. The controller updates the position of the indeterminate point, when the move instruction is input through the operation unit after display the computational result, controls the measuring unit to recompute at least one of the area and the perimetrical length of the polygon based on the measuring points including the updated indeterminate point, and controls the display unit to display at least one of the recomputed area and the recomputed perimetrical length of the polygon, as recomputational result after updated the indeterminate point.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: January 6, 2015
    Assignee: Olympus Corporation
    Inventor: Kiyotomi Ogawa
  • Publication number: 20140205150
    Abstract: A region-setting unit sets, in an image, a region based on one reference point designated by a user in the image or a predetermined region as an extraction region. An edge extraction unit extracts an edge of the subject based on an image of the extraction region. When a plurality of edges are extracted, a display control unit causes a line indicating the plurality of extracted edges to be displayed on a display unit together with the image. An edge selection unit selects a reference edge from among the plurality of extracted edges based on an instruction from the user. A three-dimensional coordinate calculation unit calculates three-dimensional coordinates corresponding to points in the image. A reference line calculation unit calculates a reference line on a space based on the three-dimensional coordinates corresponding to points constituting the reference edge.
    Type: Application
    Filed: December 17, 2013
    Publication date: July 24, 2014
    Applicant: OLYMPUS CORPORATION
    Inventor: Kiyotomi OGAWA
  • Publication number: 20140002348
    Abstract: The measuring unit computes at least one of an area and a perimetrical length of a polygon, based on three or more measuring points including an indeterminate point of which a position is changed by a move instruction input through an operation unit, wherein the measuring points are designated on the image by an instruction of a user input through the operation unit. The controller updates the position of the indeterminate point, when the move instruction is input through the operation unit after display the computational result, controls the measuring unit to recompute at least one of the area and the perimetrical length of the polygon based on the measuring points including the updated indeterminate point, and controls the display unit to display at least one of the recomputed area and the recomputed perimetrical length of the polygon, as recomputational result after updated the indeterminate point.
    Type: Application
    Filed: January 22, 2013
    Publication date: January 2, 2014
    Applicant: OLYMPUS CORPORATION
    Inventor: Kiyotomi OGAWA