Patents by Inventor Masanari Morioka
Masanari Morioka 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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Publication number: 20210382434Abstract: [Problem to be solved] To further develop conventional technique. [Solution] a cartridge includes a casing, a photosensitive drum and a coupling. the coupling includes a driving force receiving portion for receiving a driving force by engagement with a driving force application member, a braking force receiving portion for receiving in braking force by engagement with a braking force application member, and a guide for moving the braking force application member relative to the driving force application member.Type: ApplicationFiled: August 20, 2021Publication date: December 9, 2021Inventors: Masanari Morioka, Takeo Kawanami, Yu Fukasawa
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Patent number: 11163263Abstract: An image forming apparatus cartridge includes a coupling member having an axis about which the coupling member is rotatable. The coupling member includes a first end portion operatively connected to a developer roller and a developer supplying roller and a second end portion for receiving a rotational force. The coupling member is movable between a first position in which the axis of the coupling member is substantially parallel to and offset from the axis of the developer roller, a second position in which the axis of the coupling member is inclined with respect to the position of the axis when the coupling member is in the first position, and a third position in which the axis of the coupling member is inclined with respect to the position of the axis when the coupling member is in the first position in a direction opposite to the direction the coupling member is inclined when in the second position.Type: GrantFiled: August 19, 2020Date of Patent: November 2, 2021Assignee: Canon Kabushiki KaishaInventors: Masanari Morioka, Shigeo Miyabe, Takahito Ueno
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Patent number: 11156956Abstract: A device for transmitting a rotational force to an electrophotographic photosensitive drum includes a flange connectable to the photosensitive drum and having a rotational axis, a hollow portion, and a force receiving surface, a pin configured to transmit the rotational force to the flange, and a coupling member the coupling member including a shaft shaped portion extended along a rotational axis of the coupling member and including a through-hole portion. When the pin and at least a part of the shaft shaped portion of the coupling member are accommodated in the hollow portion of the flange and the pin contacts the force receiving surface, the pin is capable of transmitting the rotational force received from the coupling member to the flange.Type: GrantFiled: October 22, 2020Date of Patent: October 26, 2021Assignee: Canon Kabushiki KaishaInventors: Takahito Ueno, Shigeo Miyabe, Masanari Morioka, Masato Hisano
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Publication number: 20210311432Abstract: A cartridge for an electrophotographic image forming apparatus includes a developing roller, a rotatable member for transmitting a rotational force to the developing roller, a coupling member, and a frame. The coupling member is capable of moving between a first coupling member position in which the coupling axis is substantially coaxial with the rotational axis of the rotatable member and a second coupling member position in which the coupling axis is not coaxial with the rotational axis of the rotatable member. When the frame is in a first frame position, the coupling member is in the first coupling member position and a rotational force receiving portion of the coupling member engages with a rotational force applying portion of the apparatus, and, when the frame is in the second frame position, the coupling member is in the second coupling member position and the rotational force receiving portion engages with the rotational force applying portion.Type: ApplicationFiled: June 22, 2021Publication date: October 7, 2021Inventors: Masanari Morioka, Shigeo Miyabe, Takahito Ueno
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Publication number: 20210294241Abstract: A cartridge includes a frame and a developing roller for developing a latent image on the electrophotographic photosensitive drum. The cartridge also includes a coupling member having a rotational force receiving portion to receive a rotational force to be transmitted to the developing roller. First and second force receiving portions are provided on the frame. The coupling member is movable relative to the roller axis between a first position in which the coupling axis is substantially parallel to the roller axis and a second position different from the first position.Type: ApplicationFiled: June 8, 2021Publication date: September 23, 2021Inventors: Shigeo Miyabe, Takahito Ueno, Masanari Morioka
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Patent number: 11067949Abstract: A cartridge for use with a main assembly of an electrophotographic image forming apparatus, the main assembly including a driving shaft having a rotational force applying portion, wherein the cartridge is dismountable from the main assembly in a direction substantially perpendicular to an axial direction of the driving shaft, the cartridge including i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis thereof; and ii) a coupling member engageable with the rotational force applying portion to receive a rotational force for rotating the developing roller, the coupling member being capable of taking a rotational force transmitting angular position for transmitting the rotational force for rotating the developing roller to the developing roller and a disengaging angular position in which the coupling member is inclined away from the rotational force transmitting angular position, wherein when tType: GrantFiled: November 13, 2018Date of Patent: July 20, 2021Assignee: Canon Kabushiki KaishaInventors: Shigeo Miyabe, Takahito Ueno, Masanari Morioka
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Patent number: 11061369Abstract: A cartridge for use with a main assembly of an electrophotographic image forming apparatus, the main assembly including a driving shaft having a rotational force applying portion, wherein the cartridge is dismountable from the main assembly in a direction substantially perpendicular to an axial direction of the driving shaft, the cartridge including i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis thereof; and ii) a coupling member engageable with the rotational force applying portion to receive a rotational force for rotating the developing roller, the coupling member being capable of taking a rotational force transmitting angular position for transmitting the rotational force for rotating the developing roller to the developing roller and a disengaging angular position in which the coupling member is inclined away from the rotational force transmitting angular position, wherein when tType: GrantFiled: January 28, 2020Date of Patent: July 13, 2021Assignee: Canon Kabushiki KaishaInventors: Shigeo Miyabe, Takahito Ueno, Masanari Morioka
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Publication number: 20210109479Abstract: There are provided a movable member 80; a regulating member 90 movable between a regulating position for restricting movement of the movable member 80 and a non-regulating position not restricting movable member 80. By movement of the movable member 80 between a first position and a second position, a position of an end 80d of the movable member 80 in a direction of an axis L1. An end portion 80d is closer to a coupling member 63 in the direction of the axis L1 when the movable member 80 is in a second position than when it is in the first position. When the regulating member 90 is in the regulating position, the movement of the movable member 80 from the first position to the second position is restricted. When the regulating member 90 is in the non-regulating position, the movement of the movable member 80 from the first position to the second position is permitted. The movable member 80 includes a rotatable portion 81 contacting the regulating member 90 taking the regulating position.Type: ApplicationFiled: December 18, 2020Publication date: April 15, 2021Inventors: Yukio Kubo, Masanari Morioka, Naoki Hayashi
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Publication number: 20210080903Abstract: A process cartridge comprises an electrophotographic photosensitive drum having a photosensitive layer at a peripheral surface thereof, and process means actable on the electrophotographic photosensitive drum. The process cartridge also includes a coupling member capable of taking a rotational force transmitting angular position for transmitting the rotational force for rotating the electrophotographic photosensitive drum to the electrophotographic photosensitive drum and a disengaging angular position in which the coupling member is inclined away from the axis of the electrophotographic photosensitive drum from the rotational force transmitting angular position.Type: ApplicationFiled: November 25, 2020Publication date: March 18, 2021Inventors: Takahito Ueno, Shigeo Miyabe, Masanari Morioka, Masato Hisano
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Publication number: 20210041830Abstract: A device for transmitting a rotational force to an electrophotographic photosensitive drum includes a flange connectable to the photosensitive drum and having a rotational axis, a hollow portion, and a force receiving surface, a pin configured to transmit the rotational force to the flange, and a coupling member the coupling member including a shaft shaped portion extended along a rotational axis of the coupling member and including a through-hole portion. When the pin and at least a part of the shaft shaped portion of the coupling member are accommodated in the hollow portion of the flange and the pin contacts the force receiving surface, the pin is capable of transmitting the rotational force received from the coupling member to the flange.Type: ApplicationFiled: October 22, 2020Publication date: February 11, 2021Inventors: Takahito Ueno, Shigeo Miyabe, Masanari Morioka, Masato Hisano
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Patent number: 10877433Abstract: 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: GrantFiled: March 11, 2020Date of Patent: December 29, 2020Assignee: Canon Kabushiki KaishaInventors: Takahito Ueno, Shigeo Miyabe, Masanari Morioka, Masato Hisano
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Publication number: 20200379405Abstract: An image forming apparatus cartridge includes a coupling member having an axis about which the coupling member is rotatable. The coupling member includes a first end portion operatively connected to a developer roller and a developer supplying roller and a second end portion for receiving a rotational force. The coupling member is movable between a first position in which the axis of the coupling member is substantially parallel to and offset from the axis of the developer roller, a second position in which the axis of the coupling member is inclined with respect to the position of the axis when the coupling member is in the first position, and a third position in which the axis of the coupling member is inclined with respect to the position of the axis when the coupling member is in the first position in a direction opposite to the direction the coupling member is inclined when in the second position.Type: ApplicationFiled: August 19, 2020Publication date: December 3, 2020Inventors: Masanari Morioka, Shiego Miyabe, Takahito Ueno
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Patent number: 10845756Abstract: A device for transmitting a rotational force to an electrophotographic photosensitive drum includes a pin supported by a flange, with the pin being configured to transmit the rotational force to the flange. The device also includes a coupling member having a rotational axis, the coupling member including (i) a first end portion operatively connected to the flange, (ii) a second end portion including at least one projection, and (iii) a connecting portion connecting the first end portion and the second end portion, with the first end portion including a through-hole portion. The pin penetrates the through-hole portion and is capable of receiving the rotational force from the coupling member, and the coupling member is movable with respect to the pin between a first position in which the rotational axis of the coupling member is coaxial with an axis of the flange, and a second position in which the rotational axis of the coupling member is inclined with respect to the axis of the flange.Type: GrantFiled: September 9, 2019Date of Patent: November 24, 2020Assignee: Canon Kabushiki KaishaInventors: Takahito Ueno, Shigeo Miyabe, Masanari Morioka, Masato Hisano
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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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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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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