Patents by Inventor Takahito Ueno

Takahito Ueno 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: 10831150
    Abstract: A cartridge includes a photosensitive member, a discharge opening for discharging a developer removed from the photosensitive member, toward a loosening member provided in the main assembly of a apparatus; a vibration imparting member for imparting vibration to the loosening member. The vibration imparting member is movable between a first position for imparting the vibration to the loosening member and a second position retracted from the first position.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: November 10, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Patent number: 10816931
    Abstract: A developing device usable with an electrophotographic image forming apparatus, the apparatus including a driving shaft rotatable by a motor and having a rotating force applying portion, and a movable member, the developing device being mountable to the movable member, and the developing device being movable in a direction substantially perpendicular to an axial direction of the driving shaft in response to movement of the movable member in one direction with the developing device mounted to the movable member, the developing device includes i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis; and ii) a coupling member for transmitting a rotating force to the developing roller, the coupling member including, a rotating force receiving portion engageable with the rotating force applying portion to receive a rotating force from the driving shaft.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: October 27, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
  • Publication number: 20200333744
    Abstract: A cartridge detachably mountable to a main assembly of an image forming apparatus includes a photosensitive drum; a discharging path for permitting movement of a developer removed from the drum, the discharging path including a developer discharge opening and a movable portion through which the developer is movable and which is movable between a retracted position in an upstream side with respect to a developer moving direction through the discharge opening and a advanced position in a downstream side with respect to the developer moving direction; and a sealing portion for closing the discharging path by contacting the movable portion at a position different from that of the discharge opening.
    Type: Application
    Filed: July 1, 2020
    Publication date: October 22, 2020
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Patent number: 10795312
    Abstract: A developing device usable with an electrophotographic image forming apparatus, the apparatus including a driving shaft rotatable by a motor and having a rotating force applying portion, and a movable member, the developing device being mountable to the movable member, and the developing device being movable in a direction substantially perpendicular to an axial direction of the driving shaft in response to movement of the movable member in one direction with the developing device mounted to the movable member, the developing device includes i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis; and ii) a coupling member for transmitting a rotating force to the developing roller, the coupling member including, a rotating force receiving portion engageable with the rotating force applying portion to receive a rotating force from the driving shaft, and a rotating force transmitting portion for
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: October 6, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
  • Patent number: 10788790
    Abstract: A developing device usable with an electrophotographic image forming apparatus, the apparatus including a driving shaft rotatable by a motor and having a rotating force applying portion, and a movable member, the developing device being mountable to the movable member, and the developing device being movable in a direction substantially perpendicular to an axial direction of the driving shaft in response to movement of the movable member in one direction with the developing device mounted to the movable member, the developing device includes i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis; and ii) a coupling member for transmitting a rotating force to the developing roller, the coupling member including, a rotating force receiving portion engageable with the rotating force applying portion to receive a rotating force from the driving shaft, and a rotating force transmitting portion for
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: September 29, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
  • Patent number: 10788789
    Abstract: An image forming apparatus cartridge includes a developer roller having an axis L1 and a coupling member having an axis L2. The coupling member includes a first end portion operatively connected to the developer roller, a second end portion, and a connecting portion connecting the first end portion and the second end portion. The image forming apparatus cartridge also includes an urging member that biases the coupling member. The coupling member is movable between a first position in which the axis L2 of the coupling member is substantially parallel to and offset from the axis L1 of the developer roller, and a second position in which the axis L2 of the coupling member is fully inclined with respect to the axis L1 of the developing roller, and the urging member biases the coupling member to the second position.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: September 29, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
  • Patent number: 10761479
    Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: September 1, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Patent number: 10739721
    Abstract: A cartridge detachably mountable to a main assembly of an image forming apparatus includes a photosensitive drum; a discharging path for permitting movement of a developer removed from the drum, the discharging path including a developer discharge opening and a movable portion through which the developer is movable and which is movable between a retracted position in an upstream side with respect to a developer moving direction through the discharge opening and a advanced position in a downstream side with respect to the developer moving direction; and a sealing portion for closing the discharging path by contacting the movable portion at a position different from that of the discharge opening.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: August 11, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Publication number: 20200249624
    Abstract: An image forming apparatus cartridge includes a rotatable member rotatably supported in a casing to permit rotation about an axis of the rotatable member, a developer roller rotatably supported in the casing to permit rotation about an axis L1, and a coupling member having an axis L2 about which the coupling member is rotatable and a free end portion for receiving a rotational force. The free end portion of the coupling includes at least two projections that are positioned at least partially outside of the casing, with each of the at least two projections being open to the axis L2. The coupling member is operatively connected to the rotatable member and the developer roller in order to transmit the rotational force to the rotatable member and the developer roller.
    Type: Application
    Filed: March 11, 2020
    Publication date: August 6, 2020
    Inventors: Takahito Ueno, Shigeo Miyabe, Masanari Morioka, Masato Hisano
  • Publication number: 20200241465
    Abstract: A developing device usable with an electrophotographic image forming apparatus, the apparatus including a driving shaft rotatable by a motor and having a rotating force applying portion, and a movable member, the developing device being mountable to the movable member, and the developing device being movable in a direction substantially perpendicular to an axial direction of the driving shaft in response to movement of the movable member in one direction with the developing device mounted to the movable member, the developing device includes i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis; and ii) a coupling member for transmitting a rotating force to the developing roller, the coupling member including, a rotating force receiving portion engageable with the rotating force applying portion to receive a rotating force from the driving shaft, and a rotating force transmitting portion for
    Type: Application
    Filed: April 10, 2020
    Publication date: July 30, 2020
    Inventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
  • Publication number: 20200241464
    Abstract: A developing device usable with an electrophotographic image forming apparatus, the apparatus including a driving shaft rotatable by a motor and having a rotating force applying portion, and a movable member, the developing device being mountable to the movable member, and the developing device being movable in a direction substantially perpendicular to an axial direction of the driving shaft in response to movement of the movable member in one direction with the developing device mounted to the movable member, the developing device includes i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis; and ii) a coupling member for transmitting a rotating force to the developing roller, the coupling member including, a rotating force receiving portion engageable with the rotating force applying portion to receive a rotating force from the driving shaft, and a rotating force transmitting portion for
    Type: Application
    Filed: April 10, 2020
    Publication date: July 30, 2020
    Inventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
  • Publication number: 20200241468
    Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.
    Type: Application
    Filed: February 28, 2020
    Publication date: July 30, 2020
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Publication number: 20200241466
    Abstract: A developing device usable with an electrophotographic image forming apparatus, the apparatus including a driving shaft rotatable by a motor and having a rotating force applying portion, and a movable member, the developing device being mountable to the movable member, and the developing device being movable in a direction substantially perpendicular to an axial direction of the driving shaft in response to movement of the movable member in one direction with the developing device mounted to the movable member, the developing device includes i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis; and ii) a coupling member for transmitting a rotating force to the developing roller, the coupling member including, a rotating force receiving portion engageable with the rotating force applying portion to receive a rotating force from the driving shaft, and a rotating force transmitting portion for
    Type: Application
    Filed: April 10, 2020
    Publication date: July 30, 2020
    Inventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
  • Patent number: 10712710
    Abstract: A developing device usable with an electrophotographic image forming apparatus, the apparatus including a driving shaft rotatable by a motor and having a rotating force applying portion, and a movable member, the developing device being mountable to the movable member, and the developing device being movable in a direction substantially perpendicular to an axial direction of the driving shaft in response to movement of the movable member in one direction with the developing device mounted to the movable member, the developing device includes i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis; and ii) a coupling member for transmitting a rotating force to the developing roller, the coupling member including, a rotating force receiving portion engageable with the rotating force applying portion to receive a rotating force from the driving shaft, and a rotating force transmitting portion for
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: July 14, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
  • Patent number: 10712709
    Abstract: A developing device usable with an electrophotographic image forming apparatus, the apparatus including a driving shaft rotatable by a motor and having a rotating force applying portion, and a movable member, the developing device being mountable to the movable member, and the developing device being movable in a direction substantially perpendicular to an axial direction of the driving shaft in response to movement of the movable member in one direction with the developing device mounted to the movable member, the developing device includes i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis; and ii) a coupling member for transmitting a rotating force to the developing roller, the coupling member including, a rotating force receiving portion engageable with the rotating force applying portion to receive a rotating force from the driving shaft, and a rotating force transmitting portion for
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: July 14, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
  • Publication number: 20200201248
    Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Publication number: 20200201245
    Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Publication number: 20200201246
    Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Publication number: 20200201249
    Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
  • Publication number: 20200201247
    Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi