Patents by Inventor Satoshi Koizumi

Satoshi Koizumi 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: 20200045251
    Abstract: A photoelectric conversion apparatus includes first and second photoelectric conversion elements, first and second counters, first and second reset units, an adder, and a detection unit. The first counter is configured to perform a counting operation to change a count value based on a signal input from the first photoelectric conversion element. The second counter is configured to perform a counting operation to change a count value based on a signal input from the second photoelectric conversion element. The count value of the first counter and the count value of the second counter are input to the adder. The detection unit is configured to detect an event that the count value of the first counter exceeds a threshold value.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Inventors: Satoshi Koizumi, Masahiro Kobayashi
  • Patent number: 10554913
    Abstract: A solid-state imaging device includes pixels forming pixel rows, and a scanning circuit that performs a reset operation of a photoelectric converter and a readout operation of a pixel signal based on charges generated by the photoelectric converter including charge transfer from the photoelectric converter to the holding unit. The pixel rows include imaging rows and focus detection rows. The scanning circuit performs an image capture scan of the imaging rows and a focus detection scan of the focus detection rows, independently, such that signals of the focus detection rows are output after signals from the imaging rows. The scanning circuit performs the focus detection scan such that the reset operation on the focus detection row does not overlap with a charge transfer period on an imaging row belonging to a unit pixel row neighboring a unit pixel row to which a focus detection row under the reset operation belongs.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: February 4, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yu Arishima, Yasuhiro Oguro, Shinichiro Shimizu, Satoshi Koizumi, Masaya Ogino
  • Publication number: 20190309456
    Abstract: The problem to be solved by the present invention is to provide a polyester binder fiber having a low crystallization temperature and exhibiting improved adhesiveness and a fiber structure including the polyester binder fiber. The polyester binder fiber according to the present invention includes a polyester polymer and an amorphous polyether imide polymer in a proportion of 0.1 to 5.0 mass % (based on the mass of the polyester polymer), and the polyester binder fiber has a crystallization temperature measured by differential calorimetry in a range of 100° C. or higher and 250° C. or lower.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 10, 2019
    Applicant: KURARAY CO., LTD.
    Inventors: Akihiro UEHATA, Hayato HOHMAN, Satoshi KOIZUMI
  • Publication number: 20190174085
    Abstract: A solid-state imaging device includes pixels in a matrix and a readout circuit that reads signals from a pixel. Each pixel includes a first photoelectric converter, a second photoelectric converter arranged in a first direction relative to the first photoelectric converter, a third photoelectric converter arranged in a second direction relative to the first photoelectric converter, a fourth photoelectric converter arranged in the second direction relative to the second photoelectric converter and in the first direction relative to the third photoelectric converter, and a micro lens for all the photoelectric converters. The readout circuit reads charges from all the photoelectric converters by three readout operations and reads signals so as to be able to identify a signal based on charges generated by only one photoelectric converter. The readout circuit selects the one photoelectric converter from all the photoelectric converters.
    Type: Application
    Filed: November 26, 2018
    Publication date: June 6, 2019
    Inventor: Satoshi Koizumi
  • Publication number: 20190055684
    Abstract: A heat resistant fiber assembly contains heat resistant fibers having a glass transition temperature of 100° C. or more, the heat resistant fibers being bonded together.
    Type: Application
    Filed: March 29, 2017
    Publication date: February 21, 2019
    Applicant: KURARAY CO. LTD.
    Inventors: Satoshi KOIZUMI, Sumito KIYOOKA, Yasuro ARAIDA
  • Publication number: 20180359400
    Abstract: An image capturing apparatus for capturing a moving image is provided. The apparatus includes a photoelectric conversion portion configured to generate charges in accordance with incident light in an exposure period, a generation unit configured to generate a pixel signal of each frame based on charges generated in the photoelectric conversion portion, and a control unit configured to change, in an exposure period for generating one frame, a conversion efficiency of converting the incident light to the photoelectric conversion portion into the pixel signal.
    Type: Application
    Filed: May 31, 2018
    Publication date: December 13, 2018
    Inventors: Masaya Ogino, Satoshi Koizumi
  • Patent number: 10154221
    Abstract: An imaging device includes a plurality of pixels each of which outputs at least one of an imaging signal and a ranging signal and performs a first readout operation that reads the imaging signal from a first pixel group of the plurality of pixels, and a second readout operation that, after the first readout operation and before a readout operation for next acquiring the imaging signal, reads the ranging signal from a second pixel group of the plurality of pixels. In the first readout operation, the imaging signal is not read from a third pixel group of the plurality of pixels, in a period from a reset of the first pixel group to a next reset of the first pixel group, the third pixel group is reset, and the second pixel group is selected from the third pixel group based on the imaging signal read by the first readout operation.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: December 11, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masaya Ogino, Satoshi Koizumi
  • Publication number: 20180316881
    Abstract: A solid-state imaging device includes pixels forming pixel rows, and a scanning circuit that performs a reset operation of a photoelectric converter and a readout operation of a pixel signal based on charges generated by the photoelectric converter including charge transfer from the photoelectric converter to the holding unit. The pixel rows include imaging rows and focus detection rows. The scanning circuit performs an image capture scan of the imaging rows and a focus detection scan of the focus detection rows, independently, such that signals of the focus detection rows are output after signals from the imaging rows. The scanning circuit performs the focus detection scan such that the reset operation on the focus detection row does not overlap with a charge transfer period on an imaging row belonging to a unit pixel row neighboring a unit pixel row to which a focus detection row under the reset operation belongs.
    Type: Application
    Filed: April 18, 2018
    Publication date: November 1, 2018
    Inventors: Yu Arishima, Yasuhiro Oguro, Shinichiro Shimizu, Satoshi Koizumi, Masaya Ogino
  • Publication number: 20180309946
    Abstract: A photoelectric conversion device includes a plurality of pixels each of which includes a photoelectric converter that generates charges by photoelectric conversion, a first transfer unit that transfers charges in the photoelectric converter to a first holding portion, a second transfer unit that transfers charges in the first holding portion to a second holding portion, an amplifier unit that outputs a signal based on charges held in the second holding portion, and a third transfer unit that transfers charges of the photoelectric converter to a drain portion; and a control unit that, in an exposure period in which signal charges are accumulated in the photoelectric converter, changes a potential barrier formed by the third transfer unit with respect to the signal charges accumulated in the photoelectric converter from a first level to a second level that is higher than the first level.
    Type: Application
    Filed: April 17, 2018
    Publication date: October 25, 2018
    Inventors: Takeru Ohya, Satoshi Koizumi, Masahiro Kobayashi
  • Patent number: 10068940
    Abstract: An imaging apparatus includes a micro lens, a second photoelectric conversion element that is located adjacent to a first photoelectric conversion element in a first direction, and a third photoelectric conversion element that is located adjacent to the first photoelectric conversion in a second direction intersecting with the first direction, wherein the height of a potential barrier produced at a region between the first and third photoelectric conversion elements against a signal charge is less than the height of a potential barrier produced at a region between the first and second photoelectric conversion elements against a signal charge.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: September 4, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Koizumi, Masahiro Kobayashi
  • Patent number: 9998715
    Abstract: A solid-state imaging device includes a photoelectric conversion unit including one microlens and a plurality of photoelectric conversion elements, a read-out circuit unit configured to read out a first signal based on charges accumulated by one of the photoelectric conversion elements and a second signal based on charges accumulated by another one of the photoelectric conversion elements, and a signal processing unit configured to, in a case where the first signal is larger than a predetermined saturation signal level and the second signal, correct the first signal to a predetermined signal level based on the second signal so that a change rate of a third signal obtained by adding the first and second signals relative to a light amount approximates to the change rate in a case where the first signal is smaller than the predetermined saturation signal level.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: June 12, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Satoshi Koizumi
  • Publication number: 20180133062
    Abstract: Provided are a fibrous sheet having a stress relaxation rate defined by the following formula of less than or equal to 85%: stress relaxation rate [%]=(stress S5 at extension after five minutes/stress S0 at initial extension)×100 when a stress at extension immediately after extension in an in-plane first direction at 50% elongation is defined as a stress S0 (N/50 mm) at initial extension, and a stress at extension at a time of extending in the first direction at 50% elongation for five minutes is defined as a stress S5 (N/50 mm) at extension after five minutes, and a bandage including the fibrous sheet.
    Type: Application
    Filed: May 26, 2016
    Publication date: May 17, 2018
    Applicant: KURARAY CO., LTD.
    Inventor: Satoshi KOIZUMI
  • Publication number: 20180113182
    Abstract: Provided is a polymer composite material which has a high proton spin polarization even though it is a polymer composite material containing carbon black. The present invention relates to a polymer composite material for 1H dynamic nuclear polarization experiments, containing carbon black, having a thickness of 0.8 mm or less, and being doped with a paramagnetic radical compound.
    Type: Application
    Filed: October 10, 2017
    Publication date: April 26, 2018
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tomomi MASUI, Yohei NOUDA, Satoshi KOIZUMI
  • Publication number: 20180063460
    Abstract: An imaging device includes a plurality of pixels each of which outputs at least one of an imaging signal and a ranging signal and performs a first readout operation that reads the imaging signal from a first pixel group of the plurality of pixels, and a second readout operation that, after the first readout operation and before a readout operation for next acquiring the imaging signal, reads the ranging signal from a second pixel group of the plurality of pixels. In the first readout operation, the imaging signal is not read from a third pixel group of the plurality of pixels, in a period from a reset of the first pixel group to a next reset of the first pixel group, the third pixel group is reset, and the second pixel group is selected from the third pixel group based on the imaging signal read by the first readout operation.
    Type: Application
    Filed: July 7, 2017
    Publication date: March 1, 2018
    Inventors: Masaya Ogino, Satoshi Koizumi
  • Publication number: 20170370038
    Abstract: Provided are a nonwoven fabric, wherein in a broken end part formed by a tensile test in accordance with JIS L 1913 of stretching in one direction to lead breakage, letting an innermost point in the one direction be Pin and an outermost point be Pout, distance D along the one direction between point Pin and point Pout is less than or equal to 50 mm, and a bandage using the same.
    Type: Application
    Filed: December 25, 2015
    Publication date: December 28, 2017
    Applicant: KURARAY CO., LTD.
    Inventors: Satoshi KOIZUMI, Sumito KIYOOKA
  • Publication number: 20170263664
    Abstract: An imaging apparatus includes a micro lens, a second photoelectric conversion element that is located adjacent to a first photoelectric conversion element in a first direction, and a third photoelectric conversion element that is located adjacent to the first photoelectric conversion in a second direction intersecting with the first direction, wherein the height of a potential barrier produced at a region between the first and third photoelectric conversion elements against a signal charge is less than the height of a potential barrier produced at a region between the first and second photoelectric conversion elements against a signal charge.
    Type: Application
    Filed: March 6, 2017
    Publication date: September 14, 2017
    Inventors: Satoshi Koizumi, Masahiro Kobayashi
  • Publication number: 20170247823
    Abstract: Provided are a stretchable non-woven fabric including crimped fibers, satisfying the following formula: (?65??55)/(?30??20)?2.5, when a stress ? (N/50 mm) at a strain ? of 20%, 30%, 55% and 65% in a stress-strain curve by a tensile test for at least one direction in a plane direction, is referred to as ?20, ?30, ?55 and ?65, respectively, and a bandage including the non-woven fabric. The non-woven fabric and the bandage lead small deterioration in stretching performance when used repeatedly, and can be excellent in repetition durability.
    Type: Application
    Filed: August 25, 2015
    Publication date: August 31, 2017
    Applicant: KURARAY CO., LTD.
    Inventors: Satoshi KOIZUMI, Sumito KIYOOKA, Yasurou ARAIDA
  • Publication number: 20160309102
    Abstract: A solid-state imaging device includes a photoelectric conversion unit including one microlens and a plurality of photoelectric conversion elements, a read-out circuit unit configured to read out a first signal based on charges accumulated by one of the photoelectric conversion elements and a second signal based on charges accumulated by another one of the photoelectric conversion elements, and a signal processing unit configured to, in a case where the first signal is larger than a predetermined saturation signal level and the second signal, correct the first signal to a predetermined signal level based on the second signal so that a change rate of a third signal obtained by adding the first and second signals relative to a light amount approximates to the change rate in a case where the first signal is smaller than the predetermined saturation signal level.
    Type: Application
    Filed: March 10, 2016
    Publication date: October 20, 2016
    Inventor: Satoshi Koizumi
  • Patent number: 9410625
    Abstract: To provide a combined oil control ring with a function of preventing the separate rotation of side rails for a long period of time even under fretting fatigue, seating tabs of a spacer expander are provided with substantially longitudinal projections and recesses on their side-rail-pushing surfaces in a circumferential direction, the width m of a bottom surface being larger than the circumferential length m? of the top surface in each projection, and a surface connecting the top surface to a recess surface having a bulging shape.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: August 9, 2016
    Assignee: KABUSHIKI KAISHA RIKEN
    Inventors: Masahiro Nakazawa, Tadahiko Watanabe, Satoshi Koizumi
  • Patent number: 9312717
    Abstract: Frequent charging/discharging to an electric energy storage element is suppressed for energy saving and longer lifetime. A transmission-line-side power converter device converts power from a transmission line, and supplies DC power to a feeder line connected to an electric energy storage element. An output current controller connected with a line voltage detector detects the feeder line voltage, and a charging rate detector detects a charging rate of the electric energy storage element. A control table sets charging/discharging start voltages and current saturated voltages based on the detected line voltage and charging rate. The output current controller controls the electric energy storage element to discharge at a high line voltage as the charging rate increase, to suppress charging the electric energy storage element at the low line voltage, and makes discharging difficult at the low line voltage to facilitate charging at the low line voltage as the charging rate decreases.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: April 12, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masayuki Nogi, Ryo Takagi, Koji Ootsuji, Mitsuhiko Matsui, Satoshi Koizumi