Patents by Inventor Seiichirou Sakai

Seiichirou Sakai 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).

  • Publication number: 20110285893
    Abstract: Provided is a solid-state imaging apparatus comprising signal lines to each of which a signal is outputted from each of pixels, a first holding capacitor for holding the signal outputted from each of the signal lines, first CMOS switches arranged between the signal lines and the first holding lines, each of the first CMOS switches including a first NMOS transistor and a first PMOS transistor, a first control line commonly connected to the gates of the first NMOS transistors of the first CMOS switches, and a second control line commonly connected to the gates of the first PMOS transistors of the first CMOS switches, and signals of different timings are supplied to the first control line and the second control line such that a timing of turning off the first NMOS transistor is shifted from a timing of turning off the first PMOS transistor.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 24, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Seiichirou Sakai
  • Patent number: 8053718
    Abstract: A photoelectric conversion apparatus includes a first block line through which an optical signal is output and a second block line through which a noise signal superimposed on the optical signal is output. The photoelectric conversion apparatus also includes a switch used to control a connection between the first block line and the second block line.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: November 8, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toru Koizumi, Hideaki Takada, Masanori Ogura, Seiichirou Sakai
  • Publication number: 20110114822
    Abstract: A photoelectric conversion apparatus includes a first block line through which an optical signal is output and a second block line through which a noise signal superimposed on the optical signal is output. The photoelectric conversion apparatus also includes a switch used to control a connection between the first block line and the second block line.
    Type: Application
    Filed: January 21, 2011
    Publication date: May 19, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toru Koizumi, Hideaki Takada, Masanori Ogura, Seiichirou Sakai
  • Publication number: 20110068253
    Abstract: A photoelectric conversion apparatus of the present invention includes: a plurality of photoelectric conversion elements arranged on a substrate; a transistor for transferring a signal charge; and a plurality of transistors for reading out the signal charge transferred. The plurality of photoelectric conversion elements include a first photoelectric conversion element and a second photoelectric conversion element adjacent to each other. The photoelectric conversion apparatus of the present invention includes: a first semiconductor region having a first conductivity type arranged between the first photoelectric conversion element and the second photoelectric conversion element; and a second semiconductor region having the first conductivity type that is arranged on a region where the plurality of transistors are arranged and that has a width larger than that of the first semiconductor region of the first conductivity type.
    Type: Application
    Filed: September 20, 2010
    Publication date: March 24, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yu Arishima, Yasuhiro Kawabata, Hideaki Takada, Seiichirou Sakai, Toru Koizumi
  • Patent number: 7906755
    Abstract: A photoelectric conversion apparatus includes a first block line through which an optical signal is output and a second block line through which a noise signal superimposed on the optical signal is output. The photoelectric conversion apparatus also includes a switch used to control a connection between the first block line and the second block line.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: March 15, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toru Koizumi, Hideaki Takada, Masanori Ogura, Seiichirou Sakai
  • Publication number: 20100327149
    Abstract: An apparatus includes a pixel region having disposed therein in a matrix form a plurality of conversion components, an amplifier transistor which amplifies a signal from the plurality of conversion components, a reset transistor which sets the potential of an input portion of the amplifier transistor to a reset potential, and a select transistor which is connected in series to the amplifier transistor and selects and reads the amplified signal, and well contact regions which are provided within the pixel region. Each of the well contact regions is neighboring to a drain region of the reset transistor, and the drain region of the reset transistor has a lower impurity concentration than the impurity concentration in the source and drain regions of the select transistor.
    Type: Application
    Filed: June 21, 2010
    Publication date: December 30, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Seiichirou Sakai, Yuu Arishima
  • Publication number: 20100264298
    Abstract: A photo-electric conversion device comprises a pixel array in which a plurality of pixels are arrayed, each pixel including a photo-electric converter, a floating diffusion portion, a transfer unit which transfers charges generated in the photo-electric converter to the floating diffusion portion, and an output unit which outputs a signal corresponding to a potential of the floating diffusion portion, a signal line which is connected to the plurality of pixels and transmits a signal output from each pixel, a load transistor including a drain connected to the signal line, and a source connected to a first reference potential, and a capacitance including a first electrode connected to a gate of the load transistor, and a second electrode connected to a second reference potential, wherein the signal line is arranged not to overlap the first electrode when viewed from a direction perpendicular to a light-receiving surface of the photo-electric converter.
    Type: Application
    Filed: April 12, 2010
    Publication date: October 21, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tatsuya Ryoki, Seiichirou Sakai, Toru Koizumi
  • Publication number: 20100025570
    Abstract: A photoelectric conversion apparatus includes a first block line through which an optical signal is output and a second block line through which a noise signal superimposed on the optical signal is output. The photoelectric conversion apparatus also includes a switch used to control a connection between the first block line and the second block line.
    Type: Application
    Filed: October 7, 2009
    Publication date: February 4, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toru Koizumi, Hideaki Takada, Masanori Ogura, Seiichirou Sakai
  • Patent number: 7629568
    Abstract: A photoelectric conversion apparatus includes a first block line through which an optical signal is output and a second block line through which a noise signal superimposed on the optical signal is output. The photoelectric conversion apparatus also includes a switch used to control a connection between the fist block line and the second block line.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: December 8, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toru Koizumi, Hideaki Takada, Masanori Ogura, Seiichirou Sakai
  • Patent number: 7619667
    Abstract: A solid-state image device including pixels arranged two-dimensionally, the pixels each including a photoelectric converter for converting incident light into an electric signal, is provided. The solid-state image device includes an output amplifier configured to amplify a photoelectric conversion output from each of the pixels, and a reference voltage amplifier configured to output a reference voltage. The solid-state image device selectively outputs the photoelectric conversion output and the reference voltage.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: November 17, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Seiichirou Sakai, Toru Koizumi
  • Publication number: 20090218479
    Abstract: An image sensing apparatus includes a pixel array, a first color filter, a second color filter, and a light shielding portion. The amount of electric charges generated in a first pixel after light of a first wavelength enters the first pixel is larger than that of electric charges generated in a second pixel after light of a second wavelength enters the second pixel. The light shielding portion defines the aperture regions of the first and second pixels so as to set the aperture area of the first pixel larger than that of the second pixel.
    Type: Application
    Filed: February 17, 2009
    Publication date: September 3, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yuu Arishima, Hideaki Takada, Seiichirou Sakai
  • Publication number: 20090159783
    Abstract: A photoelectric conversion apparatus includes a first block line through which an optical signal is output and a second block line through which a noise signal superimposed on the optical signal is output. The photoelectric conversion apparatus also includes a switch used to control a connection between the fist block line and the second block line.
    Type: Application
    Filed: December 1, 2008
    Publication date: June 25, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toru Koizumi, Hideaki Takada, Masanori Ogura, Seiichirou Sakai
  • Publication number: 20060109360
    Abstract: A solid-state image device including pixels arranged two-dimensionally, the pixels each including a photoelectric converter for converting incident light into an electric signal, is provided. The solid-state image device includes an output amplifier configured to amplify a photoelectric conversion output from each of the pixels, and a reference voltage amplifier configured to output a reference voltage. The solid-state image device selectively outputs the photoelectric conversion output and the reference voltage.
    Type: Application
    Filed: November 10, 2005
    Publication date: May 25, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventors: Seiichirou Sakai, Toru Koizumi