Patents Assigned to Canon Kabshiki Kaisha
  • Patent number: 10283538
    Abstract: An imaging device includes a plurality of pixels, each of which including a first pixel element including a first photoelectric conversion unit, and a second pixel element including a second photoelectric conversion unit lower in sensitivity than the first photoelectric conversion unit, a readout circuit configured to read out a first image signal based on signal charge generated in the first pixel element during a first accumulation period, and a second image signal based on signal charge generated in the second pixel element during a second accumulation period longer than the first accumulation period, the second image signal being synchronized with the first image signal, and a control unit configured to control the readout circuit so that a first readout period for reading out the first image signal is performed during the second accumulation period.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: May 7, 2019
    Assignee: CANON KABSHIKI KAISHA
    Inventors: Fumihiro Kajimura, Yasuo Suda, Koichi Washisu, Akihiko Nagano, Ryo Yamasaki, Masafumi Kimura, Makoto Oikawa, Go Naito
  • Publication number: 20140104573
    Abstract: An ophthalmic imaging apparatus divides a frame image obtained by capturing a moving image into a plurality of regions grouping pixels, and acquires photometric values corresponding the plurality of the regions. Further, the ophthalmic imaging apparatus determines acknowledgement or dis-acknowledgement of capturing a still image based on temporal variation of the acquired photometric values or distribution of the acquired photometric values on a fundus image. The ophthalmic imaging apparatus inhibits to execute a still image capturing of the fundus if the dis-acknowledgement of capturing is determined.
    Type: Application
    Filed: December 17, 2013
    Publication date: April 17, 2014
    Applicant: CANON KABSHIKI KAISHA
    Inventor: Tomoyuki Iwanaga
  • Patent number: 8342522
    Abstract: A sheet conveyance apparatus includes a conveyance unit configured to convey a sheet and a pair of roller units, provided on a downstream of the conveyance unit in the conveyance direction, wherein the pair of roller units forms a plurality of nipping portions, arranged along a width direction orthogonal to the conveyance direction, a downstream end of the sheet to be conveyed is caused to abut against abutting positions of the plurality of nipping portion, and wherein the abutting position of the nipping portion nearer to a center in the width direction is positioned on a more downstream in the conveyance direction than the abutting position of the nipping portion at end side in the width direction.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: January 1, 2013
    Assignee: Canon Kabshiki Kaisha
    Inventor: Masaki Maeno
  • Patent number: 5966620
    Abstract: A novel process for producing a semiconductor article is disclosed which comprises the steps of preparing a first substrate constituted of a silicon substrate, a nonporous semiconductor layer formed on the silicon substrate, and an ion implantation layer formed in at least one of the silicon substrate and the nonporous semiconductor layer; bonding the first substrate to a second substrate to obtain a multiple layer structure with the nonporous semiconductor layer placed inside; separating the multiple layer structure at the ion implantation layer; and removing the ion implantation layer remaining on the separated second substrate.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: October 12, 1999
    Assignee: Canon Kabshiki Kaisha
    Inventors: Kiyofumi Sakaguchi, Takao Yonehara
  • Patent number: 5832349
    Abstract: The present ivention provides a toner replenishing container comprising a bag made of a film, and an opening member for opening the bag by tearing it. After the unsealing, a bottom of the bag is completely opened.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: November 3, 1998
    Assignee: Canon Kabshiki Kaisha
    Inventor: Toshiaki Nagashima