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).
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Patent number: 10831150Abstract: 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: GrantFiled: January 15, 2020Date of Patent: November 10, 2020Assignee: Canon Kabushiki KaishaInventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
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Patent number: 10816931Abstract: 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: GrantFiled: April 10, 2020Date of Patent: October 27, 2020Assignee: Canon Kabushiki KaishaInventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
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Publication number: 20200333744Abstract: 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: ApplicationFiled: July 1, 2020Publication date: October 22, 2020Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
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Patent number: 10795312Abstract: 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 forType: GrantFiled: April 10, 2020Date of Patent: October 6, 2020Assignee: Canon Kabushiki KaishaInventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
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Patent number: 10788790Abstract: 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 forType: GrantFiled: April 10, 2020Date of Patent: September 29, 2020Assignee: Canon Kabushiki KaishaInventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
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Patent number: 10788789Abstract: 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: GrantFiled: May 16, 2019Date of Patent: September 29, 2020Assignee: Canon Kabushiki KaishaInventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
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Patent number: 10761479Abstract: 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: GrantFiled: August 1, 2017Date of Patent: September 1, 2020Assignee: Canon Kabushiki KaishaInventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
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Patent number: 10739721Abstract: 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: GrantFiled: October 22, 2019Date of Patent: August 11, 2020Assignee: Canon Kabushiki KaishaInventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
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Publication number: 20200249624Abstract: 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: ApplicationFiled: March 11, 2020Publication date: August 6, 2020Inventors: Takahito Ueno, Shigeo Miyabe, Masanari Morioka, Masato Hisano
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Publication number: 20200241465Abstract: 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 forType: ApplicationFiled: April 10, 2020Publication date: July 30, 2020Inventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
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Publication number: 20200241464Abstract: 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 forType: ApplicationFiled: April 10, 2020Publication date: July 30, 2020Inventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
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Publication number: 20200241468Abstract: 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: ApplicationFiled: February 28, 2020Publication date: July 30, 2020Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
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Publication number: 20200241466Abstract: 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 forType: ApplicationFiled: April 10, 2020Publication date: July 30, 2020Inventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
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Patent number: 10712710Abstract: 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 forType: GrantFiled: September 18, 2019Date of Patent: July 14, 2020Assignee: Canon Kabushiki KaishaInventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
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Patent number: 10712709Abstract: 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 forType: GrantFiled: September 18, 2019Date of Patent: July 14, 2020Assignee: Canon Kabushiki KaishaInventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
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Publication number: 20200201248Abstract: 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: ApplicationFiled: February 28, 2020Publication date: June 25, 2020Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
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Publication number: 20200201245Abstract: 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: ApplicationFiled: February 28, 2020Publication date: June 25, 2020Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
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Publication number: 20200201246Abstract: 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: ApplicationFiled: February 28, 2020Publication date: June 25, 2020Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
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Publication number: 20200201249Abstract: 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: ApplicationFiled: February 28, 2020Publication date: June 25, 2020Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
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Publication number: 20200201247Abstract: 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: ApplicationFiled: February 28, 2020Publication date: June 25, 2020Inventors: Akinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi