Patents by Inventor Toshiaki Ono

Toshiaki Ono 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: 9257459
    Abstract: An image pickup apparatus of the present invention includes a clipping circuit that clips the voltage of an input node of an amplifying unit in a pixel. The clipping circuit can operate at least in a time period in which a charge is transferred from a photoelectric conversion unit to the input node of the amplifying unit, and can switch among multiple clipping voltages.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: February 9, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinichiro Shimizu, Takashi Matsuda, Yuichiro Yamashita, Toshiaki Ono
  • Publication number: 20160037117
    Abstract: At least one solid-state image pickup element includes a plurality of pixels that are arranged in a two-dimensional manner. Each of the plurality of pixels includes a plurality of photoelectric conversion units each including a pixel electrode, a photoelectric conversion layer disposed on the pixel electrode, and a counter electrode disposed such that the photoelectric conversion layer is sandwiched between the pixel electrode and the counter electrode. In one or more embodiments, each of the plurality of pixels also includes a microlens disposed on the plurality of photoelectric conversion units.
    Type: Application
    Filed: July 27, 2015
    Publication date: February 4, 2016
    Inventors: Toshiaki Ono, Masatsugu Itahashi, Naoki Inatani, Yu Maehashi, Hidekazu Takahashi
  • Publication number: 20160035583
    Abstract: A manufacturing method of an epitaxial silicon wafer includes: an epitaxial-film-growth step in which an epitaxial film is grown on a silicon wafer in a reaction container, and a temperature reduction step in which a temperature of the epitaxial silicon wafer is reduced from a temperature at which the epitaxial film is grown. In the temperature reduction step, a temperature reduction rate of the epitaxial silicon wafer is controlled to satisfy a relationship represented by R?2.0×10-4X?2.9, where X (?·cm) represents a resistivity of the silicon wafer, and R (degrees C./min) represents the temperature reduction rate for lowing the temperature of the epitaxial silicon wafer from 500 degrees C. to 400 degrees C.
    Type: Application
    Filed: June 30, 2015
    Publication date: February 4, 2016
    Applicant: SUMCO CORPORATION
    Inventors: Kazuhisa TORIGOE, Toshiaki ONO
  • Publication number: 20160035780
    Abstract: Each of a plurality of pixels arranged in two dimensions includes a photoelectric conversion unit including a pixel electrode, a photoelectric conversion layer provided above the pixel electrode, and a counter electrode provided so as to sandwich the photoelectric conversion layer between the counter electrode and the pixel electrode, and a microlens arranged above the photoelectric conversion unit. The plurality of pixels includes a first pixel and a plurality of second pixels. At least either the pixel electrodes of the plurality of second pixels are smaller than the pixel electrode of the first pixel or the counter electrodes of the plurality of second pixels are smaller than the counter electrode of the first pixel, and a configuration between the counter electrode and the microlens of the first pixel is the same as a configuration between the counter electrode and the microlens of each of the plurality of second pixels.
    Type: Application
    Filed: July 28, 2015
    Publication date: February 4, 2016
    Inventors: Masatsugu Itahashi, Toshiaki Ono, Hidekazu Takahashi, Naoki Inatani, Yu Maehashi
  • Patent number: 9243345
    Abstract: A method of manufacturing a silicon wafer provides a silicon wafer which can reduce the precipitation of oxygen to prevent a wafer deformation from being generated and can prevent a slip extension due to boat scratches and transfer scratches serving as a reason for a decrease in wafer strength, even when the wafer is provided to a rapid temperature-rising-and-falling thermal treatment process.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: January 26, 2016
    Assignee: SUMCO CORPORATION
    Inventors: Toshiaki Ono, Wataru Ito, Jun Fujise
  • Publication number: 20150341579
    Abstract: A solid-state image sensor comprising a pixel array in which a plurality of pixels are arrayed in a matrix having a plurality of rows and a plurality of columns, wherein the pixel array includes a first wiring layer and a second wiring layer arranged above the first wiring layer, the first wiring layer includes first column signal lines arranged at the respective columns of the pixel array, and the second wiring layer includes second column signal lines arranged at the respective columns of the pixel array.
    Type: Application
    Filed: August 3, 2015
    Publication date: November 26, 2015
    Inventors: Masahiro Kobayashi, Hideaki Takada, Toshiaki Ono
  • Patent number: 9153610
    Abstract: A solid-state image sensor comprising a pixel array in which a plurality of pixels are arrayed in a matrix having a plurality of rows and a plurality of columns, wherein the pixel array includes a first wiring layer and a second wiring layer arranged above the first wiring layer, the first wiring layer includes first column signal lines arranged at the respective columns of the pixel array, and the second wiring layer includes second column signal lines arranged at the respective columns of the pixel array.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: October 6, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Kobayashi, Hideaki Takada, Toshiaki Ono
  • Patent number: 9137471
    Abstract: Each of pixels in a pixel array includes a photoelectric converter and a readout circuit which outputs a signal in accordance with charges generated in the photoelectric converter. The readout circuit includes a group of transistors which are disposed so as to form a current path fed by a current source. The readout circuit of a pixel in a first line in the array and the readout circuit of a pixel in a second line in the array are disposed between the photoelectric converter of the pixel in the first line and the photoelectric converter of the pixel in the second line. Directions of currents respectively flowing through the group of transistors in the readout circuit of the pixel in the first line and the plurality of transistors in the readout circuit of the pixel in the second line are the same.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: September 15, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiaki Ono, Yukio Araoka
  • Patent number: 9093340
    Abstract: A solid-state imaging apparatus includes: a read out circuit configured to convert the analog signal generated by a pixel into a digital signal. The read out circuit includes an analog circuit, a digital circuit and a logic circuit arranged between the analog circuit and the digital circuit. The analog circuit is formed within first and second semiconductor regions of first and second conductivity type. The logic circuit is formed within third and fourth semiconductor regions of the first and second conductivity types. The digital circuit is formed within a fifth and sixth semiconductor regions of the first and second conductivity types. The first to sixth semiconductor regions are isolated one from another. And, a number of elements included in the logic circuit is smaller than a number of elements included in the digital circuit.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: July 28, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Toshiaki Ono
  • Publication number: 20150138415
    Abstract: An image sensor including a pixel unit in which a plurality of pixels are arranged in a matrix, an A/D conversion circuit provided corresponding to each column of the matrix and configured to A/D-convert a pixel signal output from the pixel unit and output digital data corresponding to the pixel signal, a memory provided on each column, and a redundant data generation unit configured to generate redundant data based on a generating rule of an error correction code for the digital data, wherein the digital data and the redundant data are stored in the memory.
    Type: Application
    Filed: October 17, 2014
    Publication date: May 21, 2015
    Inventor: Toshiaki Ono
  • Patent number: 9025041
    Abstract: A solid-state imaging apparatus includes: a plurality of pixels; a reference signal generating circuit configured to generate a ramp signal; a counter performing a counting operation according to the changing of the ramp signal; a read out circuit having a comparator comparing a signal read out from the pixel with the ramp signal, and converting an analog signal outputted from the pixel to a digital signal; and a control circuit configured to adjust a reset potential to be used when the comparator is reset, wherein the control circuit obtains a conversion value derived by converting an analog signal derived of a reset level of the pixel to a digital signal, and adjusts a reference potential based on the conversion value to make a dynamic range of A/D conversion follow the fluctuation of the reset level of the pixel.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: May 5, 2015
    Assignee: Canon Kabushiki Kasha
    Inventor: Toshiaki Ono
  • Publication number: 20150077605
    Abstract: A solid-state imaging apparatus improving a read-out speed and a noise-reduction rate comprises: a photoelectric conversion portion configured to convert light into an electric charge; a floating diffusion portion configured to convert the electric charge into a voltage; a transfer transistor configured to transfer the electric charge converted by the photoelectric conversion portion to the floating diffusion portion; an amplifying transistor configured to amplify the voltage of the floating diffusion portion; a selecting transistor configured to output the voltage amplified by the amplifying transistor to an output line; and a switch provided between the output line and a current source, wherein the selecting transistor and the switch are held at an OFF state, during a period of a transition of the transfer transistor from an OFF state to an ON state and during a period of a transition of the transfer transistor from the ON state to the OFF state.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 19, 2015
    Inventors: Hideaki Takada, Toshiaki Ono
  • Publication number: 20150062395
    Abstract: An AD conversion unit AD-converts a first analog signal output from a clamping unit and generated based on a signal generated at a first photoelectric conversion unit. Then, while the first analog signal is clamped at a reference level, signals generated based on the signals generated at the first and second photoelectric conversion units are applied to the clamping unit, whereby the AD conversion unit AD-converts a second analog signal output from the clamping unit.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Toshiaki Ono, Kazumichi Morita
  • Publication number: 20150054134
    Abstract: A method of manufacturing a silicon wafer provides a silicon wafer which can reduce the precipitation of oxygen to prevent a wafer deformation from being generated and can prevent a slip extension due to boat scratches and transfer scratches serving as a reason for a decrease in wafer strength, even when the wafer is provided to a rapid temperature-rising-and-falling thermal treatment process.
    Type: Application
    Filed: October 20, 2014
    Publication date: February 26, 2015
    Applicant: SUMCO CORPORATION
    Inventors: Toshiaki ONO, Wataru ITO, Jun FUJISE
  • Publication number: 20150009385
    Abstract: An imaging apparatus includes: pixel circuits (1) arranged in a matrix, each configured to generate a pixel signal by photoelectric conversion; readout circuits (50) each provided correspondingly to each column of the plurality of pixel circuits, and each configured to read out the pixel signals from the pixel circuits of a corresponding column; 2n first output lines (5-1 to 5-8) to which output terminals of every 2n columns of the readout circuits are commonly connected; and an adding unit configured to add the pixel signals from the pixel circuits arranged in different columns. Among the readout circuits on plural columns connected to the pixel circuits which are subjected to adding by the adding unit, only the readout circuit on one column performs the read out, and all of the 2n first output lines receives input of the pixel signals from one of the plural readout circuits.
    Type: Application
    Filed: June 10, 2014
    Publication date: January 8, 2015
    Inventors: Kentaro Tsukida, Yukio Araoka, Toshiaki Ono
  • Patent number: 8920560
    Abstract: A method for manufacturing an epitaxial wafer includes: a step of pulling a single crystal from a boron-doped silicon melt in a chamber based on a Czochralski process; and a step of forming an epitaxial layer on a surface of a silicon wafer sliced from the single crystal. The single crystal is allowed to grow while passed through a temperature region of 800 to 600° C. in the chamber in 250 to 180 minutes during the pulling step. The grown single crystal has an oxygen concentration of 10×1017 to 12×1017 atoms/cm3 and a resistivity of 0.03 to 0.01 ?cm. The silicon wafer is subjected to pre-annealing prior to the step of forming the epitaxial layer on the surface of the silicon wafer, for 10 minutes to 4 hours at a predetermined temperature within a temperature region of 650 to 900° C. in an inert gas atmosphere. The method is to fabricate an epitaxial wafer that has a diameter of 300 mm or more, and that attains a high IG effect, and involves few epitaxial defects.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: December 30, 2014
    Assignee: Sumco Corporation
    Inventors: Yasuo Koike, Toshiaki Ono, Naoki Ikeda, Tomokazu Katano
  • Publication number: 20140375859
    Abstract: Each of pixels in a pixel array includes a photoelectric converter and a readout circuit which outputs a signal in accordance with charges generated in the photoelectric converter. The readout circuit includes a group of transistors which are disposed so as to form a current path fed by a current source. The readout circuit of a pixel in a first line in the array and the readout circuit of a pixel in a second line in the array are disposed between the photoelectric converter of the pixel in the first line and the photoelectric converter of the pixel in the second line. Directions of currents respectively flowing through the group of transistors in the readout circuit of the pixel in the first line and the plurality of transistors in the readout circuit of the pixel in the second line are the same.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 25, 2014
    Inventors: Toshiaki Ono, Yukio Araoka
  • Patent number: 8907836
    Abstract: A switched-capacitor input circuit which receives an analog input signal, and samples and holds the analog input signal, comprising a differential amplifier, a first capacitor, one terminal of the first capacitor being connected to a non-inverting input terminal of the differential amplifier, a second capacitor, one terminal of the second capacitor being connected to an inverting input terminal of the differential amplifier, a first switch configured to connect the other terminal of the first capacitor to one of a first reference voltage and a second reference voltage, a second switch configured to connect the other terminal of the second capacitor to one of the first reference voltage and the second reference voltage, and a third switch configured to connect the other terminal of the first capacitor to the other terminal of the second capacitor.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: December 9, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshiaki Ono
  • Patent number: 8890291
    Abstract: A method of manufacturing a silicon wafer provides a silicon wafer which can reduce the precipitation of oxygen to prevent a wafer deformation from being generated and can prevent a slip extension due to boat scratches and transfer scratches serving as a reason for a decrease in wafer strength, even when the wafer is provided to a rapid temperature-rising-and-falling thermal treatment process.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: November 18, 2014
    Assignee: Sumco Corporation
    Inventors: Toshiaki Ono, Wataru Ito, Jun Fujise
  • Patent number: 8860858
    Abstract: A solid-state image sensor, comprising a pixel array complying with a Bayer array, a first signal processor configured to process each of red-pixel and blue-pixel signals output from the pixel array, a second signal processor configured to process each of green-pixel signals output from the pixel array, and a control unit configured to control the pixel array, the first signal processor, and the second signal processor, wherein the solid-state image sensor selects a readout method, by changing timings of the control signals, from a progressive method, an interlace method, and a pseudo-progressive method.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: October 14, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshiaki Ono