Patents by Inventor Toshiyuki Nishihara

Toshiyuki Nishihara 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: 20190154850
    Abstract: The present disclosure relates to a detection device and electronic equipment, in which a detection accuracy of minute light can be improved. A detection device includes: a pixel array portion in which a plurality of first pixels including a photoelectric conversion unit, and a plurality of second pixels not including a photoelectric conversion unit, are arranged; and a driving unit configured to drive the first pixel and the second pixel. The present technology, for example, can be applied to a light detector, a radiation counter device performing radiation counting by using the light detector, and a biological examination device using the light detector, such as a flow cytometer.
    Type: Application
    Filed: July 7, 2017
    Publication date: May 23, 2019
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Toshiyuki NISHIHARA, Masao MATSUMURA, Tsutomu IMOTO
  • Publication number: 20190094391
    Abstract: The present disclosure relates to an X-ray detection device and a detection method, which can improve a sampling rate and spatial resolution without increasing an exposure dose to a subject. The X-ray detection device according to an aspect of the present disclosure includes: a scintillator adapted to generate scintillation light in response to incident X-rays; a detection unit including a plurality of pixels each generating a pixel signal in response to the scintillation light incident thereon; and an output unit adapted to generate the X-ray two-dimensional projection data by using the pixel signals of the pixels, in which the pixel of the detection unit includes: a plurality of subpixels adapted to perform photoelectric conversion in response to the scintillation light; an AD conversion unit adapted to apply AD conversion to outputs of the subpixels; and an adder adapted to generate the pixel signal corresponding to the pixel by adding up outputs of the plurality of subpixels after the AD conversion.
    Type: Application
    Filed: April 7, 2017
    Publication date: March 28, 2019
    Inventors: TOSHIYUKI NISHIHARA, KENICHI OKUMURA, TSUTOMU IMOTO, MASAO MATSUMURA
  • Publication number: 20190049374
    Abstract: The present disclosure relates to an optical measuring instrument, a flow cytometer, and a radiation counter which reduces a size and a weight of a photodetector, and enables detection of weak pulsed light with a high degree of accuracy and at a high speed. A laser beam source irradiates a specimen to be measured with a laser beam and generates a light pulse of intensity corresponding to the irradiation.
    Type: Application
    Filed: February 10, 2017
    Publication date: February 14, 2019
    Inventors: TOSHIYUKI NISHIHARA, KENICHI OKUMURA
  • Publication number: 20190020833
    Abstract: An imaging device includes: a pixel array section having an array of pixels, each of which has a photoelectric converting device and outputs an electric signal according to an input photon; a sense circuit section having a plurality of sensor circuits each of which makes binary decision on whether there is a photon input to a pixel in a predetermined period upon reception of the electric signal therefrom; and a decision result IC section which integrates decision results from the sense circuits, pixel by pixel or for each group of pixels, multiple times to generate imaged data with a gradation, the decision result IC section including a count circuit which performs a count process to integrate the decision results from the sense circuits, and a memory for storing a counting result for each pixel from the count circuit, the sense circuits sharing the count circuit for integrating the decision results.
    Type: Application
    Filed: September 6, 2018
    Publication date: January 17, 2019
    Applicant: Sony Corporation
    Inventor: Toshiyuki NISHIHARA
  • Patent number: 10182198
    Abstract: An imaging device including a pixel array section functioning as a light receiving section which includes photoelectric conversion devices and in which a plurality of pixels, which output electric signals when photons are incident, are disposed in an array; a sensing circuit section in which a plurality of sensing circuits, which receive the electric signals from the pixels and perform binary determination regarding whether or not there is an incidence of photons on the pixels in a predetermined period, are arrayed; and a determination result integration circuit section having a function of integrating a plurality of determination results of the sensing circuits for the respective pixels or for each pixel group, wherein the determination result integration circuit section derives the amount of photon incidence on the light receiving section by performing photon counting for integrating the plurality of determination results in the plurality of pixels.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: January 15, 2019
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Toshiyuki Nishihara
  • Patent number: 10158813
    Abstract: An image pickup device including an amplification transistor (136) and a photodiode (134) is provided. The photodiode is configured to generate an electric charge and provide the electric charge to a first terminal of the amplification transistor. The image pickup device also includes a selection transistor (131) having a first terminal electrically connected to a second terminal of the amplification transistor and a second terminal of the selection transistor electrically connected to a signal line (129) is provided. In particular, a third terminal of the amplification transistor is electrically connected to a ground potential.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: December 18, 2018
    Assignee: Sony Corporation
    Inventor: Toshiyuki Nishihara
  • Publication number: 20180348381
    Abstract: The present technology relates to an imaging element and a driving method, and an electronic device that enable stable driving with low voltage and low power consumption and furthermore make it possible to ensure a time resolution of detection. A light detector includes a pixel array section including a plurality of first pixels and a second pixel. The first pixel includes a photoelectric conversion section that photoelectrically converts incident light, a floating diffusion section that generates a voltage in accordance with the amount of charge carriers obtained by photoelectric conversion, and a transfer section that transfers charge carriers from the photoelectric conversion section to the floating diffusion section; the readout of a signal is performed intermittently from the first pixel. Further, the output of the second pixel is monitored continuously to detect the incidence of light. The present technology can be applied to a radiation counter.
    Type: Application
    Filed: December 2, 2016
    Publication date: December 6, 2018
    Applicant: Sony Corporation
    Inventors: Toshiyuki Nishihara, Kenichi Okumura
  • Publication number: 20180328783
    Abstract: The present technology relates to an optical pulse detection device, an optical pulse detection method, a radiation counter device, and a biological testing device which are capable of performing radiation counting in a more accurate manner. The optical pulse detection device includes a pixel array unit in which a plurality of pixels are arranged in a two-dimensional lattice shape, an AD converter that converts output signals of each of the pixels in the pixel array unit into digital values with gradation greater than 1 bit, and an output control circuit that performs error determination processing of comparing the digital value with a predetermined threshold value, and discarding a digital value, which is greater than the threshold value, among the digital values as an error. For example, the present technology is applicable to a radiation counter device, and the like.
    Type: Application
    Filed: November 4, 2016
    Publication date: November 15, 2018
    Applicant: Sony Semiconductors Solutions Corporation
    Inventors: Toshiyuki Nishihara, Keniichi Okumura
  • Patent number: 10075660
    Abstract: An imaging device includes: a pixel array section having an array of pixels, each of which has a photoelectric converting device and outputs an electric signal according to an input photon; a sense circuit section having a plurality of sensor circuits each of which makes binary decision on whether there is a photon input to a pixel in a predetermined period upon reception of the electric signal therefrom; and a decision result IC section which integrates decision results from the sense circuits, pixel by pixel or for each group of pixels, multiple times to generate imaged data with a gradation, the decision result IC section including a count circuit which performs a count process to integrate the decision results from the sense circuits, and a memory for storing a counting result for each pixel from the count circuit, the sense circuits sharing the count circuit for integrating the decision results.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: September 11, 2018
    Assignee: SONY CORPORATION
    Inventor: Toshiyuki Nishihara
  • Patent number: 10063784
    Abstract: An object is to improve accuracy of photon counting in an imaging apparatus. The imaging apparatus includes a light uniformizing unit. The light uniformizing unit included in the imaging apparatus substantially uniformizes distribution of photons in an orthogonal direction toward an optical axis of incident light, which is incident to an imaging element in the imaging apparatus and the number of photons of which is to be detected, a plurality of pixels being arranged to the imaging element. The light uniformizing unit supplies the uniformized light to the imaging element to which a plurality of pixels are arranged in the imaging apparatus.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: August 28, 2018
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Toshiyuki Nishihara, Hirofumi Sumi
  • Patent number: 10027886
    Abstract: To improve a temporal resolution. An image-capturing device includes a pixel array unit and a control unit. The pixel array unit includes a plurality of pixels classified into two or more groups, wherein pixels which belong to a same group are driven at a same timing. The control unit controls driving of the pixel array unit so that a number of groups in a period of time of read-out of electrical charge is a same number in any given timing in image-capturing operation, and that a number of groups in a period of time of exposure and accumulation of electrical charge is a same number in any given timing in the image-capturing operation.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: July 17, 2018
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Toshiyuki Nishihara, Hirofumi Sumi
  • Patent number: 10020332
    Abstract: Dark current of FD is eliminated in an image sensor, and conversion efficiency of converting electric charge to voltage is improved. A pixel circuit includes a photoelectric conversion portion, a control transistor, and an electric charge accumulation portion. The photoelectric conversion portion converts light incident along an optical axis to electric charge. The control transistor controls output voltage according to input voltage. The electric charge accumulation portion accumulates electric charge in a region positioned between the control transistor and the photoelectric conversion portion on the optical axis, and supplies a voltage according to the amount of accumulated electric charge as the input voltage to the control transistor.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: July 10, 2018
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Kouichi Harada, Toshiyuki Nishihara
  • Patent number: 10014332
    Abstract: In a photoelectric changing unit, a photoelectric conversion unit converts light into electric charge, and an electric charge accumulation unit accumulates the electric charge in a polygonal area whose plurality of sides are adjacent to the photoelectric conversion unit on a light receiving surface. A voltage generation unit accumulates the electric charge and generates a voltage according to an amount of the accumulated electric charge. A first transfer unit transfers the electric charge from the photoelectric conversion unit to the electric charge accumulation unit when an instruction on a transfer to the electric charge accumulation unit is issued. A second transfer unit transfers the electric charge from the electric charge accumulation unit to the voltage generation unit when an instruction on a transfer to the voltage generation unit is issued.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: July 3, 2018
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Toshiyuki Nishihara
  • Patent number: 10007006
    Abstract: Noise of signals in an image sensor is reduced. A pixel circuit generates a reset signal of a predetermined initial voltage and an exposure signal of a signal voltage according to an exposure amount of light in order. An analog-digital conversion unit performs a reset sampling process of converting the reset signal into a first digital signal at a predetermined reset sampling interval and an exposure sampling process of converting the exposure signal into a second digital signal at an exposure sampling interval that does not exceed twice the predetermined reset sampling interval in order. A detection unit detects the light based on the first digital signal and a second digital signal.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: June 26, 2018
    Assignee: Sony Corporation
    Inventor: Toshiyuki Nishihara
  • Patent number: 9955098
    Abstract: To improve the speed of AD conversion. An amplifier amplifies, by a magnification larger than 1, signals of a pixel that outputs a signal in which there is no accumulation of a charge by a photon as a reset signal, and outputs a signal in which there is accumulation of a charge by a photon as an accumulation signal. A calculation unit generates an offset amount signal corresponding to an amount of own offset component using the amplified signal, and calculates a digital value corresponding to the own offset component using the generated offset amount signal and accuracy set for AD conversion of the amplified accumulated signal.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: April 24, 2018
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Toshiyuki Nishihara, Hirofumi Sumi
  • Publication number: 20180077366
    Abstract: An imaging device includes: a pixel array section having an array of pixels, each of which has a photoelectric converting device and outputs an electric signal according to an input photon; a sense circuit section having a plurality of sensor circuits each of which makes binary decision on whether there is a photon input to a pixel in a predetermined period upon reception of the electric signal therefrom; and a decision result IC section which integrates decision results from the sense circuits, pixel by pixel or for each group of pixels, multiple times to generate imaged data with a gradation, the decision result IC section including a count circuit which performs a count process to integrate the decision results from the sense circuits, and a memory for storing a counting result for each pixel from the count circuit, the sense circuits sharing the count circuit for integrating the decision results.
    Type: Application
    Filed: September 22, 2017
    Publication date: March 15, 2018
    Applicant: Sony Corporation
    Inventor: Toshiyuki NISHIHARA
  • Publication number: 20170359537
    Abstract: An imaging apparatus with logarithmic characteristics includes: a photodiode that receives light; a well tap unit that fixes the potential of an N-type region of the photodiode; and a resetting unit that resets the photodiode, a P-type region of the photodiode outputting a voltage signal equivalent to a photocurrent subjected to logarithmic compression. The first potential to be supplied to the well tap unit is made lower than the second potential to be supplied to the resetting unit, so that the capacitance formed with the PN junction of the photodiode is charged when the resetting unit performs a reset operation. The present technology can be applied to unit pixels having logarithmic characteristics.
    Type: Application
    Filed: November 27, 2015
    Publication date: December 14, 2017
    Inventors: Yorito SAKANO, Tsutomu IMOTO, Hideo NOMURA, Yoshiaki TASHIRO, Toshiyuki NISHIHARA, Muriel COHEN, Frederick BRADY
  • Patent number: 9794501
    Abstract: An imaging device includes: a pixel array section having an array of pixels, each of which has a photoelectric converting device and outputs an electric signal according to an input photon; a sense circuit section having a plurality of sensor circuits each of which makes binary decision on whether there is a photon input to a pixel in a predetermined period upon reception of the electric signal therefrom; and a decision result IC section which integrates decision results from the sense circuits, pixel by pixel or for each group of pixels, multiple times to generate imaged data with a gradation, the decision result IC section including a count circuit which performs a count process to integrate the decision results from the sense circuits, and a memory for storing a counting result for each pixel from the count circuit, the sense circuits sharing the count circuit for integrating the decision results.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: October 17, 2017
    Assignee: SONY CORPORATION
    Inventor: Toshiyuki Nishihara
  • Publication number: 20170289477
    Abstract: An imaging device including a pixel array section functioning as a light receiving section which includes photoelectric conversion devices and in which a plurality of pixels, which output electric signals when photons are incident, are disposed in an array; a sensing circuit section in which a plurality of sensing circuits, which receive the electric signals from the pixels and perform binary determination regarding whether or not there is an incidence of photons on the pixels in a predetermined period, are arrayed; and a determination result integration circuit section having a function of integrating a plurality of determination results of the sensing circuits for the respective pixels or for each pixel group, wherein the determination result integration circuit section derives the amount of photon incidence on the light receiving section by performing photon counting for integrating the plurality of determination results in the plurality of pixels.
    Type: Application
    Filed: June 23, 2017
    Publication date: October 5, 2017
    Inventor: Toshiyuki Nishihara
  • Patent number: D847031
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: April 30, 2019
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Mitsuru Kobayashi, Toshiyuki Nishihara