Patents by Inventor Shunsuke Uratani
Shunsuke Uratani 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: 20210286317Abstract: A process cartridge includes a frame having a slit and a recess formed therein at a side of the process cartridge. A photosensitive drum is supported by the frame, with the photosensitive drum being rotatable about an axis thereof, the photosensitive drum including a first end and a second end opposite to the first end. A developing roller is also supported by the frame, the developing roller being rotatable about an axis thereof. A coupling is operatively connected to the photosensitive drum, with the coupling being rotatable about an axis thereof. A helical gear is positioned at the side of the process cartridge, with the helical gear being rotatable about an axis thereof. The helical gear has a plurality of teeth, with at least some of the teeth being exposed teeth that are uncovered by the frame and exposed to outside of the process cartridge.Type: ApplicationFiled: May 27, 2021Publication date: September 16, 2021Inventors: Ryuta Murakami, Tadashi Horikawa, Shunsuke Uratani, Yuichiro Inaba
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Patent number: 11099518Abstract: A cartridge includes a rotatable member and a cylindrical member operatively connected to the rotatable member. The cartridge also includes a coupling member operatively connected to the cylindrical member and coaxially rotatable with the cylindrical member. The coupling member includes at least one projection for receiving a rotational force provided at one end portion of the coupling member, and a shaft portion elongated along an axis of the coupling member. The coupling member is movable with respect to the cylindrical member in a direction of the axis of the cylindrical member. The cartridge further includes a coil spring pressing the coupling member in the direction of the axis of the cylindrical member. One end portion of the coil spring encompasses a part of the shaft portion of the coupling member, with the one end portion of the coil spring and the part of the shaft portion being accommodated in a hole in the cylindrical member.Type: GrantFiled: January 10, 2020Date of Patent: August 24, 2021Assignee: Canon Kabushiki KaishaInventors: Noriyuki Komatsu, Shunsuke Uratani, Toru Oguma
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Publication number: 20210200137Abstract: A foreign substance collection apparatus includes: a frame body; a photosensitive drum; a cleaning roller which collects foreign substances from a surface of the photosensitive drum; a collecting roller which further collects the foreign substances having been collected by the cleaning roller from the cleaning roller; and a scraping member which scrapes off the foreign substances from the collecting roller. A foreign substance collecting portion included in the frame body has, in a posture during use: a first inner bottom surface which is positioned below the scraping member in a gravity direction; an outer bottom surface which is positioned further below the first inner bottom surface; and a connecting surface which intersects the first inner bottom surface and the outer bottom surface and which connects the first inner bottom surface and the outer bottom surface with each other.Type: ApplicationFiled: December 21, 2020Publication date: July 1, 2021Inventors: Noriyuki Komatsu, Tomonori Mori, Teruhiko Sasaki, Makoto Hayashida, Shunsuke Uratani, Yuuki Nakamura, Satoru Motohashi
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Patent number: 11003129Abstract: A cartridge includes a rotatable member, a rotatable rotational force receiving member, a preventing member including an accommodating portion, a rotatable coupling member including a free end portion which includes a rotational force receiving portion and including a connecting portion connected with the preventing portion to be partly accommodated in the accommodating portion so that a rotational axis of the coupling member permits tilting thereof relative to a rotational axis of the rotational force receiving member, a shaft portion. The preventing member includes a supporting portion for supporting ends of the shaft portion so as to prevent the shaft portion from moving in a rotational direction of the rotatable member to transmit the rotational force received from the shaft portion via the supporting portion to the rotational force receiving member.Type: GrantFiled: April 23, 2020Date of Patent: May 11, 2021Assignee: Canon Kabushiki KaishaInventors: Shunsuke Uratani, Yu Fukasawa
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Publication number: 20200249622Abstract: A cartridge includes a rotatable member, a rotatable rotational force receiving member, a preventing member including an accommodating portion, a rotatable coupling member including a free end portion which includes a rotational force receiving portion and including a connecting portion connected with the preventing portion to be partly accommodated in the accommodating portion so that a rotational axis of the coupling member permits tilting thereof relative to a rotational axis of the rotational force receiving member, a shaft portion. The preventing member includes a supporting portion for supporting ends of the shaft portion so as to prevent the shaft portion from moving in a rotational direction of the rotatable member to transmit the rotational force received from the shaft portion via the supporting portion to the rotational force receiving member.Type: ApplicationFiled: April 23, 2020Publication date: August 6, 2020Inventors: Shunsuke Uratani, Yu Fukasawa
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Patent number: 10663911Abstract: A cartridge includes a rotatable member, a rotatable rotational force receiving member, a preventing member including an accommodating portion, a rotatable coupling member including a free end portion which includes a rotational force receiving portion and including a connecting portion connected with the preventing portion to be partly accommodated in the accommodating portion so that a rotational axis of the coupling member permits tilting thereof relative to a rotational axis of the rotational force receiving member, a shaft portion. The preventing member includes a supporting portion for supporting ends of the shaft portion so as to prevent the shaft portion from moving in a rotational direction of the rotatable member to transmit the rotational force received from the shaft portion via the supporting portion to the rotational force receiving member.Type: GrantFiled: August 2, 2019Date of Patent: May 26, 2020Assignee: Canon Kabushiki KaishaInventors: Shunsuke Uratani, Yu Fukasawa
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Publication number: 20200150581Abstract: A cartridge for a main assembly of an electrophotographic image forming apparatus, wherein the main assembly includes a rotatable driving coupling member including a driving force transmitting portion for transmitting a driving force and a driving side abutment, wherein the cartridge is demountable in a direction substantially perpendicular to a rotational axis of the driving coupling member, includes a rotatable driven coupling member including a driving force receiving portion for receiving the driving force, and a driven side abutment to be abutted by the driving side abutment, the driven coupling member being slidable in a predetermined direction which is substantially parallel with a rotational axis of the receiving coupling member; wherein at least one of the driving side abutment and the driven side abutment is inclined so that the driven coupling member is retractable away from the driving coupling member in the predetermined direction by a force received by driven side abutment from the driving sideType: ApplicationFiled: January 10, 2020Publication date: May 14, 2020Inventors: Noriyuki Komatsu, Shunsuke Uratani, Toru Oguma
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Patent number: 10642189Abstract: A developer container unit to be mounted in an image forming apparatus that performs an image forming operation comprises a frame and a sealing unit. The frame is provided with a developer containing chamber containing developer and an opening for discharging the developer from the developer containing chamber. The sealing unit includes a shaft member rotatable about a rotational axis and a sealing portion attached to the shaft member and compressed by the shaft member and the frame to seal the opening. The sealing unit is rotatable to a close position at which the sealing portion seals the opening, a first open position at which the opening is open, and a second open position at which the opening is open. The sealing unit agitates the developer by executing a reciprocating motion between the first and second open positions during the image forming operation.Type: GrantFiled: July 22, 2019Date of Patent: May 5, 2020Assignee: Canon Kabushiki KaishaInventors: Koji Yamaguchi, Fumito Nonaka, Hiroki Ogino, Hiroomi Matsuzaki, Shunsuke Uratani
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Publication number: 20200041930Abstract: A developer container unit to be mounted in an image forming apparatus that performs an image forming operation comprises a frame and a sealing unit. The frame is provided with a developer containing chamber containing developer and an opening for discharging the developer from the developer containing chamber. The sealing unit includes a shaft member rotatable about a rotational axis and a sealing portion attached to the shaft member and compressed by the shaft member and the frame to seal the opening. The sealing unit is rotatable to a close position at which the sealing portion seals the opening, a first open position at which the opening is open, and a second open position at which the opening is open. The sealing unit agitates the developer by executing a reciprocating motion between the first and second open positions during the image forming operation.Type: ApplicationFiled: July 22, 2019Publication date: February 6, 2020Inventors: Koji Yamaguchi, Fumito Nonaka, Hiroki Ogino, Hiroomi Matsuzaki, Shunsuke Uratani
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Patent number: 10551790Abstract: A cartridge for a main assembly of an electrophotographic image forming apparatus, wherein the main assembly includes a rotatable driving coupling member including a driving force transmitting portion for transmitting a driving force and a driving side abutment, wherein the cartridge is demountable in a direction substantially perpendicular to a rotational axis of the driving coupling member, includes a rotatable driven coupling member including a driving force receiving portion for receiving the driving force, and a driven side abutment to be abutted by the driving side abutment, the driven coupling member being slidable in a predetermined direction which is substantially parallel with a rotational axis of the receiving coupling member; wherein at least one of the driving side abutment and the driven side abutment is inclined so that the driven coupling member is retractable away from the driving coupling member in the predetermined direction by a force received by driven side abutment from the driving sideType: GrantFiled: January 22, 2019Date of Patent: February 4, 2020Assignee: Canon Kabushiki KaishaInventors: Noriyuki Komatsu, Shunsuke Uratani, Toru Oguma
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Publication number: 20190354061Abstract: A cartridge includes a rotatable member, a rotatable rotational force receiving member, a preventing member including an accommodating portion, a rotatable coupling member including a free end portion which includes a rotational force receiving portion and including a connecting portion connected with the preventing portion to be partly accommodated in the accommodating portion so that a rotational axis of the coupling member permits tilting thereof relative to a rotational axis of the rotational force receiving member, a shaft portion. The preventing member includes a supporting portion for supporting ends of the shaft portion so as to prevent the shaft portion from moving in a rotational direction of the rotatable member to transmit the rotational force received from the shaft portion via the supporting portion to the rotational force receiving member.Type: ApplicationFiled: August 2, 2019Publication date: November 21, 2019Inventors: Shunsuke Uratani, Yu Fukasawa
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Patent number: 10394182Abstract: A cartridge includes a rotatable member, a rotatable rotational force receiving member, a preventing member including an accommodating portion, a rotatable coupling member including a free end portion which includes a rotational force receiving portion and including a connecting portion connected with the preventing portion to be partly accommodated in the accommodating portion so that a rotational axis of the coupling member permits tilting thereof relative to a rotational axis of the rotational force receiving member, a shaft portion. The preventing member includes a supporting portion for supporting ends of the shaft portion so as to prevent the shaft portion from moving in a rotational direction of the rotatable member to transmit the rotational force received from the shaft portion via the supporting portion to the rotational force receiving member.Type: GrantFiled: June 28, 2017Date of Patent: August 27, 2019Assignee: Canon Kabushiki KaishaInventors: Shunsuke Uratani, Yu Fukasawa
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Patent number: 10386751Abstract: A cleaning unit includes a cleaning frame, a drum, a sheet member coming in contact with a surface of the drum, and an adhesive sealing member compressed between the cleaning frame, the drum, and the sheet member. The cleaning unit includes an end seal portion that is integrally molded with the cleaning frame by injection molding of a resin material, and the end seal portion is compressed and deformed between the cleaning frame and the adhesive sealing member and between the cleaning frame and the sheet member.Type: GrantFiled: January 28, 2015Date of Patent: August 20, 2019Assignee: Canon Kabushiki KaishaInventors: Naoki Hayashi, Shigemi Kamoshida, Shunsuke Uratani, Toshiteru Yamasaki
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Publication number: 20190155206Abstract: A cartridge for a main assembly of an electrophotographic image forming apparatus, wherein the main assembly includes a rotatable driving coupling member including a driving force transmitting portion for transmitting a driving force and a driving side abutment, wherein the cartridge is demountable in a direction substantially perpendicular to a rotational axis of the driving coupling member, includes a rotatable driven coupling member including a driving force receiving portion for receiving the driving force, and a driven side abutment to be abutted by the driving side abutment, the driven coupling member being slidable in a predetermined direction which is substantially parallel with a rotational axis of the receiving coupling member; wherein at least one of the driving side abutment and the driven side abutment is inclined so that the driven coupling member is retractable away from the driving coupling member in the predetermined direction by a force received by driven side abutment from the driving sideType: ApplicationFiled: January 22, 2019Publication date: May 23, 2019Inventors: Noriyuki Komatsu, Shunsuke Uratani, Toru Oguma
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Publication number: 20190129356Abstract: To provide a structure for the process cartridge for receiving input of driving force from outside thereof. The main assembly of the electrophotographic image forming apparatus includes a driving output member provided with an output gear portion and an output coupling portion. The process cartridge that can be mounted to and dismounted from the main assembly of the electrophotographic image forming apparatus includes a photosensitive member, an input coupling portion provided at the end of the photosensitive member and capable of coupling with the output coupling portion, and an input gear portion capable of meshing with the output gear portion.Type: ApplicationFiled: December 13, 2018Publication date: May 2, 2019Inventors: Ryuta Murakami, Tadashi Horikawa, Shunsuke Uratani, Yuichiro Inaba
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Patent number: 10197967Abstract: A cartridge for an electrophotographic image forming apparatus, wherein a main assembly includes a rotatable driving coupling member including a driving force transmitting portion for transmitting a driving force and a driving side abutment, wherein the cartridge is demountable in a direction substantially perpendicular to a rotational axis of the driving coupling member, includes a rotatable driven coupling member including a driving force receiving portion for receiving the driving force, and a driven side abutment to be abutted by the driving side abutment, the driven coupling member being slidable in a predetermined direction which is substantially parallel with a rotational axis of the receiving coupling member; wherein at least one of the driving side abutment and the driven side abutment is inclined so that the driven coupling member is retractable away from the driving coupling member in the predetermined direction by a force received by driven side abutment from the driving side abutment, and whereinType: GrantFiled: August 30, 2017Date of Patent: February 5, 2019Assignee: Canon Kabushiki KaishaInventors: Noriyuki Komatsu, Shunsuke Uratani, Toru Oguma
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Publication number: 20180046130Abstract: A cartridge for a main assembly of an electrophotographic image forming apparatus, wherein the main assembly includes a rotatable driving coupling member including a driving force transmitting portion for transmitting a driving force and a driving side abutment, wherein the cartridge is demountable in a direction substantially perpendicular to a rotational axis of the driving coupling member, includes a rotatable driven coupling member including a driving force receiving portion for receiving the driving force, and a driven side abutment to be abutted by the driving side abutment, the driven coupling member being slidable in a predetermined direction which is substantially parallel with a rotational axis of the receiving coupling member; wherein at least one of the driving side abutment and the driven side abutment is inclined so that the driven coupling member is retractable away from the driving coupling member in the predetermined direction by a force received by driven side abutment from the driving sideType: ApplicationFiled: August 30, 2017Publication date: February 15, 2018Inventors: Noriyuki Komatsu, Shunsuke Uratani, Toru Oguma
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Publication number: 20170293255Abstract: A cartridge includes a rotatable member, a rotatable rotational force receiving member, a preventing member including an accommodating portion, a rotatable coupling member including a free end portion which includes a rotational force receiving portion and including a connecting portion connected with the preventing portion to be partly accommodated in the accommodating portion so that a rotational axis of the coupling member permits tilting thereof relative to a rotational axis of the rotational force receiving member, a shaft portion. The preventing member includes a supporting portion for supporting ends of the shaft portion so as to prevent the shaft portion from moving in a rotational direction of the rotatable member to transmit the rotational force received from the shaft portion via the supporting portion to the rotational force receiving member.Type: ApplicationFiled: June 28, 2017Publication date: October 12, 2017Inventors: Shunsuke Uratani, Yu Fukasawa
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Patent number: D823380Type: GrantFiled: January 20, 2016Date of Patent: July 17, 2018Assignee: Canon Kabushiki KaishaInventors: Shunsuke Uratani, Takeshi Arimitsu, Ryoji Kusudo, Isao Koishi, Yu Fukasawa, Shigemi Kamoshida, Ryota Shibuya, Shohei Katsuya, Naoki Hayashi
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Patent number: D823938Type: GrantFiled: January 20, 2016Date of Patent: July 24, 2018Assignee: Canon Kabushiki KaishaInventors: Shunsuke Uratani, Takeshi Arimitsu, Ryoji Kusudo, Isao Koishi, Yu Fukasawa, Shigemi Kamoshida, Ryota Shibuya, Shohei Katsuya, Naoki Hayashi