Patents by Inventor Kunitoshi Aoki

Kunitoshi Aoki 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: 20230137640
    Abstract: The processing unit of the sensor includes a time counter and pixel counters. The number of lines is reduced by sharing output lines with the pixel counters and the time counter. In addition, readout time is reduced by transposing an output sequence of pixel count values and time count values across Bayer units depending on a state of saturation of a pixel.
    Type: Application
    Filed: October 31, 2022
    Publication date: May 4, 2023
    Inventor: Kunitoshi Aoki
  • Patent number: 10892697
    Abstract: In order to shorten an activation time while realizing high accuracy motor control, a motor control apparatus operable to control a motor is provided. The apparatus comprises: a first drive control unit configured to drive the motor by forced commutation control; a second drive control unit configured to drive the motor by vector control; and a control unit configured to control to drive the motor by one of the first drive control unit and the second drive control unit. A first control period which is a control period in which the first drive control unit controls the motor is shorter than a second control period which is a control period in which the second drive control unit controls the motor.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: January 12, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kunitoshi Aoki, Jumpei Ashida
  • Publication number: 20190319565
    Abstract: In order to shorten an activation time while realizing high accuracy motor control, a motor control apparatus operable to control a motor is provided. The apparatus comprises: a first drive control unit configured to drive the motor by forced commutation control; a second drive control unit configured to drive the motor by vector control; and a control unit configured to control to drive the motor by one of the first drive control unit and the second drive control unit. A first control period which is a control period in which the first drive control unit controls the motor is shorter than a second control period which is a control period in which the second drive control unit controls the motor.
    Type: Application
    Filed: April 8, 2019
    Publication date: October 17, 2019
    Inventors: Kunitoshi Aoki, Jumpei Ashida
  • Patent number: 9448520
    Abstract: There is provided with an apparatus. A measurement unit emits light to an image carrier conveying a toner image and measures an incident position of the light in a direction perpendicular to a surface of the image carrier by observing the emitted light. The measurement unit has an irradiation unit configured to emit the first light and the second light and an observation unit configured to observe the first light and the second light. The irradiation unit emits the first light and the second light at positions separate from each other in a direction perpendicular to a conveyance direction of the toner image, with irradiation directions of the first light and the second light being substantially orthogonal to the direction perpendicular to the conveyance direction of the toner image.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: September 20, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kunitoshi Aoki
  • Publication number: 20160246234
    Abstract: Light is illuminated to a surface of an image carrying member which is moved, and a patch formed on the image carrying member so as to obtain an intensity distribution of reflected light from the surface of the image carrying member and the patch. A representative reflection position of the reflected light from the patch is obtained based on the intensity distribution. A light quantity of the reflected light from the patch is obtained based on the intensity distribution. An average height of the patch is calculated based on the light quantity and the representative reflection position.
    Type: Application
    Filed: February 23, 2016
    Publication date: August 25, 2016
    Inventor: Kunitoshi Aoki
  • Publication number: 20150293489
    Abstract: There is provided with an apparatus. A measurement unit emits light to an image carrier conveying a toner image and measures an incident position of the light in a direction perpendicular to a surface of the image carrier by observing the emitted light. The measurement unit has an irradiation unit configured to emit the first light and the second light and an observation unit configured to observe the first light and the second light. The irradiation unit emits the first light and the second light at positions separate from each other in a direction perpendicular to a conveyance direction of the toner image, with irradiation directions of the first light and the second light being substantially orthogonal to the direction perpendicular to the conveyance direction of the toner image.
    Type: Application
    Filed: April 6, 2015
    Publication date: October 15, 2015
    Inventor: Kunitoshi Aoki
  • Patent number: 8953961
    Abstract: A device includes a laser source configured to irradiate a toner image on a bearing member with light, a base extracting unit configured to extract a base area of a reflection waveform of light reflected from the toner image irradiated by the laser source, and a toner adhesion computing unit configured to compute the amount of toner adhesion in the toner image in accordance with a change in position of the base area of the reflection waveform.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: February 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kunitoshi Aoki
  • Patent number: 8879936
    Abstract: One aspect of the present invention provides an information processing apparatus for determining a height of a toner image formed on a carrier, the apparatus comprising: a control unit configured to control an amount of irradiation light based on whether laser light irradiated by an irradiation unit is irradiated onto the toner image; an acquisition unit configured to acquire an image obtained by capturing reflected light of the laser light irradiated by the irradiation unit; and a determination unit configured to determine the height of the toner image based on the acquired image.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: November 4, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kunitoshi Aoki
  • Patent number: 8824908
    Abstract: An information processing apparatus capable of determining a height of a toner image formed on an image bearing member with high accuracy includes detecting a two-dimensional reflection image corresponding to a reflection image of a beam from the toner image formed on the image bearing member, identifying a representative position based on the detected two-dimensional reflection image, and determining the height of the toner image based on the identified representative position.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: September 2, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kunitoshi Aoki
  • Patent number: 8472829
    Abstract: A toner amount measuring unit irradiates a toner image formed on an image carrying member with light, and an image capturing unit captures an image of a reflected waveform according to light reflected by the toner image. Then, an amount of applied toner is calculated based on the peak position or peak height of the reflected waveform in accordance with information associated with the density of the toner image to be formed.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: June 25, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Atsumi, Kunitoshi Aoki, Yukio Nagase
  • Publication number: 20120243897
    Abstract: A toner amount measuring unit irradiates a toner image formed on an image carrying member with light, and an image capturing unit captures an image of a reflected waveform according to light reflected by the toner image. Then, an amount of applied toner is calculated based on the peak position or peak height of the reflected waveform in accordance with information associated with the density of the toner image to be formed.
    Type: Application
    Filed: June 7, 2012
    Publication date: September 27, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Atsumi, Kunitoshi Aoki, Yukio Nagase
  • Patent number: 8213820
    Abstract: A toner amount measuring unit irradiates a toner image formed on an image carrying member with light, and an image capturing unit captures an image of a reflected waveform according to light reflected by the toner image. Then, an amount of applied toner is calculated based on the peak position or peak height of the reflected waveform in accordance with information associated with the density of the toner image to be formed.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: July 3, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Atsumi, Kunitoshi Aoki, Yukio Nagase
  • Publication number: 20120134689
    Abstract: An information processing apparatus capable of determining a height of a toner image formed on an image bearing member with high accuracy includes detecting a two-dimensional reflection image corresponding to a reflection image of a beam from the toner image formed on the image bearing member, identifying a representative position based on the detected two-dimensional reflection image, and determining the height of the toner image based on the identified representative position.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 31, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kunitoshi Aoki
  • Publication number: 20120106997
    Abstract: A device includes a laser source configured to irradiate a toner image on a bearing member with light, a base extracting unit configured to extract a base area of a reflection waveform of light reflected from the toner image irradiated by the laser source, and a toner adhesion computing unit configured to compute the amount of toner adhesion in the toner image in accordance with a change in position of the base area of the reflection waveform.
    Type: Application
    Filed: October 27, 2011
    Publication date: May 3, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kunitoshi Aoki
  • Patent number: 8150282
    Abstract: An apparatus includes an irradiation unit configured to irradiate a light onto a toner image, a detection unit configured to detect reflected light from the toner image, and a deriving unit configured to derive a toner adhesion amount of the toner image, based on detection result by the detection unit in measurement range of integer multiple of screen pitch of the toner image.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: April 3, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kunitoshi Aoki
  • Publication number: 20110293302
    Abstract: One aspect of the present invention provides an information processing apparatus for determining a height of a toner image formed on a carrier, the apparatus comprising: a control unit configured to control an amount of irradiation light based on whether laser light irradiated by an irradiation unit is irradiated onto the toner image; an acquisition unit configured to acquire an image obtained by capturing reflected light of the laser light irradiated by the irradiation unit; and a determination unit configured to determine the height of the toner image based on the acquired image.
    Type: Application
    Filed: April 8, 2011
    Publication date: December 1, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kunitoshi Aoki
  • Publication number: 20100166445
    Abstract: An apparatus includes an irradiation unit configured to irradiate a light onto a toner image, a detection unit configured to detect reflected light from the toner image, and a deriving unit configured to derive a toner adhesion amount of the toner image, based on detection result by the detection unit in measurement range of integer multiple of screen pitch of the toner image.
    Type: Application
    Filed: December 18, 2009
    Publication date: July 1, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kunitoshi Aoki
  • Publication number: 20100021196
    Abstract: A toner amount measuring unit irradiates a toner image formed on an image carrying member with light, and an image capturing unit captures an image of a reflected waveform according to light reflected by the toner image. Then, an amount of applied toner is calculated based on the peak position or peak height of the reflected waveform in accordance with information associated with the density of the toner image to be formed.
    Type: Application
    Filed: July 7, 2009
    Publication date: January 28, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Atsumi, Kunitoshi Aoki, Yukio Nagase
  • Publication number: 20100002279
    Abstract: A movable body apparatus includes an oscillatory system, a driving portion for driving the oscillatory system with a driving signal, a detecting portion for detecting an oscillating condition of the movable body, a storing portion, and an obtaining portion. The oscillatory system includes at least a movable body, and an elastic support portion for supporting the movable body in a swingingly rotatable manner. The storing portion stores data of frequency characteristics of maximum angular displacement based on maximum angular displacements of the movable body corresponding to plural driving frequencies, detected by the detecting portion. The obtaining portion obtains a resonance frequency of the oscillatory system by fitting to the data of frequency characteristics of maximum angular displacement stored in the storing portion, using a least squares method.
    Type: Application
    Filed: June 29, 2009
    Publication date: January 7, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kunitoshi Aoki
  • Patent number: 6245931
    Abstract: Disclosed is a process for producing acrylonitrile from propylene, or methacrylonitrile from isobutylene by ammoxidation using an improved catalyst composition comprising an oxide catalyst represented by the formula: MomBibFefNinQqAaEeOx, wherein Q is a mixture of chromium and indium, A is at least one element selected from potassium, rubidium and cesium, E is at least one element selected from manganese magnesium, zinc, cerium, sodium and phosphorus, and m is a number of from 10 to 14, b is a number of from 0.1 to 3, f is a number of from 0.1 to 3, n is a number of from 4 to 10, q is a number of from 0.1 to 2, a is a number of from 0.01 to 0.5, e is a number of from 0 to 3, and x is a number determined by the valence requirements of the other elements present, and a silica carrier having the oxide catalyst supported thereon, wherein the silica carrier is present in an amount of from 40 to 60% by weight, based on the total weight of the oxide catalyst and the silica carrier.
    Type: Grant
    Filed: February 21, 1996
    Date of Patent: June 12, 2001
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Kunitoshi Aoki, Satoru Komada