Patents by Inventor Yuki Amauchi

Yuki Amauchi 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: 11130341
    Abstract: Provided are a liquid ejection apparatus and a maintenance apparatus capable of suppressing unintended movement of a wiping unit. The maintenance apparatus includes: a wiping unit configured to wipe the ejection opening surface of a liquid ejection head in which ejection openings over a length corresponding to the width of a print medium are formed; and a lock member configured to restrict movement of the wiping unit from a position to which the wiping unit is evacuated from the ejection opening surface.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: September 28, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Nakai, Noriko Sato, Takahiro Kiuchi, Yoshinori Yamaguchi, Yuki Amauchi, Takashi Sasaki
  • Publication number: 20200319589
    Abstract: When a position of a developing unit with respect to a photoreceptor unit, the developing unit being mounted in an image forming apparatus, is switched to a contact position from a separation position with a switching unit, the developing unit at the contact position is brought to a state forming a predetermined space with the guide unit through which an airflow generated by a fan and that flows in a longitudinal direction of the guide unit flows, and when the position of the developing unit with respect to the photoreceptor unit, the developing unit being mounted in the image forming apparatus, is switched to the separation position from the contact position with the switching unit, the developing unit at the separation position is brought to a state in which the developing unit enters at least a portion of an area of the predetermined space.
    Type: Application
    Filed: June 23, 2020
    Publication date: October 8, 2020
    Inventors: Masafumi Takahashi, Yuki Amauchi
  • Publication number: 20200047507
    Abstract: Provided are a liquid ejection apparatus and a maintenance apparatus capable of suppressing unintended movement of a wiping unit. The maintenance apparatus includes: a wiping unit configured to wipe the ejection opening surface of a liquid ejection head in which ejection openings over a length corresponding to the width of a print medium are formed; and a lock member configured to restrict movement of the wiping unit from a position to which the wiping unit is evacuated from the ejection opening surface.
    Type: Application
    Filed: August 1, 2019
    Publication date: February 13, 2020
    Inventors: Hiroshi Nakai, Noriko Sato, Takahiro Kiuchi, Yoshinori Yamaguchi, Yuki Amauchi, Takashi Sasaki
  • Publication number: 20190196399
    Abstract: When a position of a developing unit with respect to a photoreceptor unit, the developing unit being mounted in an image forming apparatus, is switched to a contact position from a separation position with a switching unit, the developing unit at the contact position is brought to a state forming a predetermined space with the guide unit through which an airflow generated by a fan and that flows in a longitudinal direction of the guide unit flows, and when the position of the developing unit with respect to the photoreceptor unit, the developing unit being mounted in the image forming apparatus, is switched to the separation position from the contact position with the switching unit, the developing unit at the separation position is brought to a state in which the developing unit enters at least a portion of an area of the predetermined space.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Inventors: Masafumi Takahashi, Yuki Amauchi
  • Publication number: 20170285571
    Abstract: When a position of a developing unit with respect to a photoreceptor unit, the developing unit being mounted in an image forming apparatus, is switched to a contact position from a separation position with a switching unit, the developing unit at the contact position is brought to a state forming a predetermined space with the guide unit through which an airflow generated by a fan and that flows in a longitudinal direction of the guide unit flows, and when the position of the developing unit with respect to the photoreceptor unit, the developing unit being mounted in the image forming apparatus, is switched to the separation position from the contact position with the switching unit, the developing unit at the separation position is brought to a state in which the developing unit enters at least a portion of an area of the predetermined space.
    Type: Application
    Filed: March 29, 2017
    Publication date: October 5, 2017
    Inventors: Masafumi Takahashi, Yuki Amauchi
  • Patent number: 9360798
    Abstract: A replenishing apparatus includes a rotatable cylindrical-shaped container having a discharge opening through which toner is discharged, and a guide member provided rotatably with the container. The guide member has a first face on an inner face of the container and a second face which guides the toner scooped by the first face toward the discharge opening. A controller controls a drive portion to rotate the container in a first mode that performs replenishment control in a first drive condition and in a second mode that performs replenishment control in a second drive condition in which a quantity of rotation of the container per unit time is less than the first drive condition. The controller switches the mode from the first mode to the second mode based on a detection result about a quantity of developer.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: June 7, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuki Amauchi, Takahiro Kobayashi
  • Publication number: 20140079414
    Abstract: An apparatus has a controller that controls a first supply mode in which a drive portion is driven under a first drive condition based on a detection result of a developer detection portion in an executable manner, in a case where the controller detects the absence of developer even when the container main body is driven for a predetermined time after the developer detection portion detects the absence of developer, the controller changes the mode from the first supply mode to a second supply mode in which the container main body is driven under a second drive condition in which a quantity of rotation of the container main body per unit time is less than the first drive condition.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 20, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yuki Amauchi, Takahiro Kobayashi