Patents by Inventor Kohei Mizuguchi

Kohei Mizuguchi 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: 20210101768
    Abstract: An image forming apparatus includes an image forming portion, a sheet discharging portion, and a sheet stacking portion. The stacking portion includes a first member including an inclined surface inclined upward toward a downstream side of a sheet discharging direction, and a second member including a stacking surface which projects upward from the inclined surface and on which the discharged sheet is stacked. The second member is rotatable relative to the first member about a supporting point provided upstream of the stacking surface with respect to the sheet discharging direction. The second member is rotatable about the supporting point in a direction in which the stacking surface moves downward in accordance with an increase in number of sheets stacked on the stacking surface.
    Type: Application
    Filed: September 29, 2020
    Publication date: April 8, 2021
    Inventor: Kohei Mizuguchi
  • Publication number: 20200002116
    Abstract: A sheet discharge apparatus includes a discharge and sheet support unit, a detection unit, a rotation member having a first abutting portion positioned above the sheet support unit, and a pressing member provided rotatably independent of the rotation member. The discharge unit nips and discharges a sheet in a sheet discharge direction. The sheet support unit supports the discharged sheet. The rotation member rotates when the first abutting portion is pressed by the sheet. The detection unit detects a position of the rotation member. A second abutting portion of the pressing member abuts against the sheet at a position downstream from a position at which the discharge unit nips the sheet and upstream from the first abutting portion in the sheet discharge direction. The pressing member presses the sheet discharged from the discharge unit downward using the second abutting portion, regardless of a position of the rotation member.
    Type: Application
    Filed: June 10, 2019
    Publication date: January 2, 2020
    Inventor: Kohei Mizuguchi
  • Publication number: 20180339872
    Abstract: A sheet conveying apparatus, including: a sheet conveying member; a guide portion configured to define a sheet conveying path; a pressing portion configured to press the sheet to curve the sheet as viewed in a sheet conveying direction in the sheet conveying path; and a moving portion movable by an edge of the sheet passing through the sheet conveying path and arranged so that at least a part of a movable range of the moving portion is overlapped with the pressing portion, wherein the moving portion includes: a first abutment portion configured to abut against the sheet passing through the sheet conveying path on one side in the width direction with respect to a conveyance center of the sheet conveying member; and a second abutment portion configured to abut against the sheet passing through the sheet conveying path on the other side with respect to the conveyance center.
    Type: Application
    Filed: May 18, 2018
    Publication date: November 29, 2018
    Inventor: Kohei Mizuguchi
  • Patent number: 10099891
    Abstract: A sheet stacking apparatus includes a door pivotable relative to an apparatus main body, a sheet stacking unit, on which sheets are stacked, provided in the door, and a load application unit. When the door is closed, the sheet stacking surface is tilted with one end side located higher than the other end side. When the door is opened, the sheet stacking surface is tilted with the one end side capable of being located lower than the other end side. The stopper portion prevents the sheets on the sheet stacking unit from falling when the door is opened. If the door is opened, the load application unit applies load to a pivot of the door before the sheet stacking surface becomes substantially horizontal.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: October 16, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kohei Mizuguchi
  • Publication number: 20180170701
    Abstract: A sheet conveyance apparatus includes a first projected portion including a first contact portion configured to contact against the sheet nipped by the nip portion and arranged on one side with respect to a center-line of conveyance in a width direction, a second projected portion including a second contact portion configured to contact against the sheet nipped by the nip portion and arranged on the other side with respect to the center-line of conveyance in the width direction, and an adjustment mechanism configured to adjust a position of at least either one of the first projected portion and the second projected portion.
    Type: Application
    Filed: December 6, 2017
    Publication date: June 21, 2018
    Inventor: Kohei Mizuguchi
  • Patent number: 9950885
    Abstract: An image forming apparatus includes an image forming portion forming an image on an envelope having a flap, and a guide portion composing a sheet conveyance path through which the envelope is conveyed and having a plurality of ribs projecting from a base plane thereof to the sheet conveyance path. Each of the plurality of ribs is disposed aslant such that a downstream end thereof in a sheet conveying direction is located at a widthwise side end more than an upstream end thereof and includes an inclined surface inclined with respect to a base plane on a side surface upstream in the sheet conveying direction of the ribs. The inclined surface is formed such that 0°<?a?45° holds, where ?a denotes an inclination angle of the inclined surface with respect to the base plane in the sheet conveying direction.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: April 24, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kohei Mizuguchi
  • Patent number: 9592992
    Abstract: An image forming apparatus includes an image forming portion forming an image on a sheet, a first sheet conveyance path guiding the sheet to the image forming portion, a second sheet conveyance path guiding the sheet on which an image has been formed by the image forming portion, and a re-conveyance path connecting the second sheet conveyance path and the first sheet conveyance path. The image forming apparatus further includes a connecting path connecting a point on the way of the second sheet conveyance path with a point on the way of the re-conveyance path and is configured to convey a sheet to the re-conveyance path through the connecting path.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: March 14, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kohei Mizuguchi, Takanori Sakurai
  • Publication number: 20160194167
    Abstract: An image forming apparatus includes an image forming portion forming an image on an envelope having a flap, and a guide portion composing a sheet conveyance path through which the envelope is conveyed and having a plurality of ribs projecting from a base plane thereof to the sheet conveyance path. Each of the plurality of ribs is disposed aslant such that a downstream end thereof in a sheet conveying direction is located at a widthwise side end more than an upstream end thereof and includes an inclined surface inclined with respect to a base plane on a side surface upstream in the sheet conveying direction of the ribs. The inclined surface is formed such that 0°<?a?45° holds, where ?a denotes an inclination angle of the inclined surface with respect to the base plane in the sheet conveying direction.
    Type: Application
    Filed: January 5, 2016
    Publication date: July 7, 2016
    Inventor: Kohei Mizuguchi
  • Publication number: 20160159588
    Abstract: A sheet stacking apparatus includes a door pivotable relative to an apparatus main body, a sheet stacking unit, on which sheets are stacked, provided in the door, and a load application unit. When the door is closed, the sheet stacking surface is tilted with one end side located higher than the other end side. When the door is opened, the sheet stacking surface is tilted with the one end side capable of being located lower than the other end side. The stopper portion prevents the sheets on the sheet stacking unit from falling when the door is opened. If the door is opened, the load application unit applies load to a pivot of the door before the sheet stacking surface becomes substantially horizontal.
    Type: Application
    Filed: December 1, 2015
    Publication date: June 9, 2016
    Inventor: Kohei Mizuguchi