Patents by Inventor Junya HAGIWARA

Junya HAGIWARA 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: 10911731
    Abstract: Because conversion from an invisible wavelength band to a visible wavelength band has been performed arbitrarily on a device-by-device basis, the color gamut in the visible color space could not be utilized sufficiently. A first aspect of the present invention provides an image-capturing device including: an image-capturing unit that is photosensitive to light in an invisible band; a generating unit that generates invisible wavelength information defined based on a sensitivity characteristic, which is an output characteristic of the image-capturing unit, to an object light flux wavelength for conversion of image-capturing data generated from an output signal of the image-capturing unit into visible color space image data; and a processing unit that relates the invisible wavelength information to the image-capturing data.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: February 2, 2021
    Assignee: NIKON CORPORATION
    Inventors: Junya Hagiwara, Yusuke Takanashi, Kiyoshige Shibazaki
  • Patent number: 10605661
    Abstract: An image capturing apparatus includes an image capturing device that captures an image of light from a subject, the light passing through each of wavelength band filters having invisible wavelengths as passbands, in which parts of the passbands of the filters whose center wavelengths are adjacent to each other mutually overlap, and a control unit that causes the image capturing device to capture an image of the light from the subject on which a first irradiation light is irradiated, the first irradiation light having a first spectral distribution in which parts of the respective passbands of the filters overlap with one another, and causes the image capturing device to capture an image of the light from the subject on which a second irradiation light is irradiated, the second irradiation light having a second spectral distribution in which parts of the respective passbands of the filters overlap with one another.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: March 31, 2020
    Assignee: NIKON CORPORATION
    Inventors: Hiroshi Sakakibara, Kiyoshige Shibazaki, Junya Hagiwara, Yusuke Takanashi
  • Publication number: 20180224333
    Abstract: An image capturing apparatus includes an image capturing device that captures an image of light from a subject, the light passing through each of wavelength band filters having invisible wavelengths as passbands, in which parts of the passbands of the filters whose center wavelengths are adjacent to each other mutually overlap, and a control unit that causes the image capturing device to capture an image of the light from the subject on which a first irradiation light is irradiated, the first irradiation light having a first spectral distribution in which parts of the respective passbands of the filters overlap with one another, and causes the image capturing device to capture an image of the light from the subject on which a second irradiation light is irradiated, the second irradiation light having a second spectral distribution in which parts of the respective passbands of the filters overlap with one another.
    Type: Application
    Filed: April 4, 2018
    Publication date: August 9, 2018
    Applicant: NIKON CORPORATION
    Inventors: Hiroshi SAKAKIBARA, Kiyoshige Shibazaki, Junya Hagiwara, Yusuke Takanashi
  • Patent number: 10021357
    Abstract: An image capturing apparatus includes: photoelectric converting elements having a light reception sensitivity to light in a wavelength band from 600 to 2500 nm, and receiving an object light flux to output pixel signals; n types of wavelength filters (n>4) allowing passage therethrough of light included in the flux and is in wavelength bands being respectively different, each including the wavelength band; and an image data generator generating image data using the output from an element among those having received the flux passed through one of m types of the wavelength filters (3?m<n) a combination determined based on a predetermined condition being determined such that among the respective wavelength bands of the m types of filters, a shortest-wavelength side wavelength band and a longest-wavelength side wavelength band overlap, and each filter among the m types allowing passage therethrough of light in the wavelength band including a predetermined effective wavelength band.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: July 10, 2018
    Assignee: NIKON CORPORATION
    Inventors: Junya Hagiwara, Yusuke Takanashi, Kiyoshige Shibazaki
  • Publication number: 20180045921
    Abstract: An imaging lens (PL) has an image surface (I) curved to have a concave surface facing an object and consists of, in order from the object along an optical axis (Ax): a front group (Ga) including four lenses (L1 to L4); and a back group (Gb) including a single lens (L5). The following conditional expression is satisfied. 0.25<Dab/TL<0.50 0.30<La/TL<0.55 where, Dab denotes a distance between the front group (Ga) and the back group (Gb) on the optical axis, La denotes a length of the front group (Ga) on the optical axis, and TL denotes a total length of the imaging lens (PL) (a distance between a vertex of a lens surface closest to the object and an axial image point corresponding to an infinite distant object).
    Type: Application
    Filed: October 28, 2017
    Publication date: February 15, 2018
    Inventors: Masato KUMAZAWA, Katsuya WATANABE, Miwako YOSHIDA, Junya HAGIWARA, Takashi KUSAKA, Atsushi SEKINE
  • Publication number: 20180020200
    Abstract: Because conversion from an invisible wavelength band to a visible wavelength band has been performed arbitrarily on a device-by-device basis, the color gamut in the visible color space could not be utilized sufficiently. A first aspect of the present invention provides an image-capturing device including: an image-capturing unit that is photosensitive to light in an invisible band; a generating unit that generates invisible wavelength information defined based on a sensitivity characteristic, which is an output characteristic of the image-capturing unit, to an object light flux wavelength for conversion of image-capturing data generated from an output signal of the image-capturing unit into visible color space image data; and a processing unit that relates the invisible wavelength information to the image-capturing data.
    Type: Application
    Filed: September 26, 2017
    Publication date: January 18, 2018
    Applicant: NIKON CORPORATION
    Inventors: Junya HAGIWARA, Yusuke TAKANASHI, Kiyoshige SHIBAZAKI
  • Publication number: 20170272709
    Abstract: An image capturing apparatus includes: photoelectric converting elements having a light reception sensitivity to light in a wavelength band from 600 to 2500 nm, and receiving an object light flux to output pixel signals; n types of wavelength filters (n>4) allowing passage therethrough of light included in the flux and is in wavelength bands being respectively different, each including the wavelength band; and an image data generator generating image data using the output from an element among those having received the flux passed through one of m types of the wavelength filters (3?m<n) a combination determined based on a predetermined condition being determined such that among the respective wavelength bands of the m types of filters, a shortest-wavelength side wavelength band and a longest-wavelength side wavelength band overlap, and each filter among the m types allowing passage therethrough of light in the wavelength band including a predetermined effective wavelength band.
    Type: Application
    Filed: March 28, 2017
    Publication date: September 21, 2017
    Applicant: NIKON CORPORATION
    Inventors: Junya HAGIWARA, Yusuke TAKANASHI, Kiyoshige SHIBAZAKI
  • Patent number: 9706186
    Abstract: An imaging apparatus including an image generating section that generates first parallax image data based on the output of the first pixel and second parallax image data based on the output of the second pixel. When the imaging element captures an image of an object point located in an unfocused region on the optical axis, a pixel value of a center pixel corresponding to the optical axis in the first parallax image data is greater than or equal to 50% of a pixel value of a peak pixel in the first parallax image data, and a pixel value of a center pixel corresponding to the optical axis in the second parallax image data is greater than or equal to 50% of a pixel value of a peak pixel in the second parallax image data.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: July 11, 2017
    Assignee: NIKON CORPORATION
    Inventors: Kiyoshige Shibazaki, Muneki Hamashima, Susumu Mori, Fumiki Nakamura, Mamoru Iesaka, Junya Hagiwara, Kenichi Ishiga
  • Publication number: 20160119608
    Abstract: An imaging apparatus including an image generating section that generates first parallax image data based on the output of the first pixel and second parallax image data based on the output of the second pixel. When the imaging element captures an image of an object point located in an unfocused region on the optical axis, a pixel value of a center pixel corresponding to the optical axis in the first parallax image data is greater than or equal to 50% of a pixel value of a peak pixel in the first parallax image data, and a pixel value of a center pixel corresponding to the optical axis in the second parallax image data is greater than or equal to 50% of a pixel value of a peak pixel in the second parallax image data.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 28, 2016
    Applicant: NIKON CORPORATION
    Inventors: Kiyoshige SHIBAZAKI, Muneki HAMASHIMA, Susumu MORI, Fumiki NAKAMURA, Mamoru IESAKA, Junya HAGIWARA, Kenichi ISHIGA