Patents by Inventor Tetsuo Uesugi
Tetsuo Uesugi 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: 11294330Abstract: A drum unit for a cartridge includes a cylindrical photosensitive drum having an axis L1 and a coupling member operatively connected to the photosensitive drum. The coupling member includes a first member having a cylindrical portion, a part of the first member being positioned inside of the photosensitive drum and a part of the first member being positioned outside of the photosensitive drum. The coupling member also includes a second member operatively connected to first member, the second member including a plurality of arm portions that are movable relative to the first member, with at least a part of each of the arm portions being positioned inside of the photosensitive drum and inside of the first member.Type: GrantFiled: October 7, 2019Date of Patent: April 5, 2022Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
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Patent number: 11294331Abstract: A coupling member drum unit for a cartridge includes a cylindrical photosensitive drum having an axis L1 and a coupling member operatively connected to the photosensitive drum. The coupling member includes a drum flange provided at an end of the photosensitive drum, with a part of the drum flange being positioned inside of the photosensitive drum, and a connecting part operatively connected to the drum flange. The connecting part includes a cap positioned adjacent to the drum flange, an arm portion extending from the cap in a direction of the axis L1, and a projection projecting from the arm portion in a direction perpendicular to the axis L1, with the projection being movable between a first position and a second position, and with an end of the projection being closer to the axis L1 in the first position than in the second position.Type: GrantFiled: October 7, 2019Date of Patent: April 5, 2022Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
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Patent number: 11294328Abstract: A process cartridge includes a photosensitive drum, a developing roller configured to develop a latent image on the photosensitive drum with toner, and a coupling member having a rotational axis, with the coupling member being operatively connected to the photosensitive drum. The coupling member includes a cylindrical portion having an outer surface and an inner surface that extends about the rotational axis of the coupling member, an arm portion extending from the inner surface of the cylindrical portion, and a projection projecting from the arm portion in a direction toward the rotational axis of the coupling member. The arm portion and the projection are movable relative to the inner surface.Type: GrantFiled: October 7, 2019Date of Patent: April 5, 2022Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
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Patent number: 11294329Abstract: A cartridge includes a photosensitive drum and a coupling member operatively connected to the photosensitive drum, with the coupling member including an arm portion and a projection projecting from the arm portion. The arm portion of the coupling member extends from a point that is upstream in the rotational direction of the photosensitive drum towards a point that is downstream in the rotation direction of the photosensitive drum.Type: GrantFiled: October 7, 2019Date of Patent: April 5, 2022Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
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Publication number: 20220075312Abstract: To further develop a drive transmission method from a main assembly of an apparatus toward a cartridge. The cartridge is detachably mountable to a main assembly of an image forming apparatus including a drive output member configured to output a driving force, and a main assembly side pushing member configured to incline the drive output member by pushing the drive output member. The cartridge includes a photosensitive drum and a cartridge side pushing member. The cartridge side pushing member is configured such that an inclination angle of the drive output member is changed by pushing the main assembly side pushing member.Type: ApplicationFiled: November 16, 2021Publication date: March 10, 2022Inventors: Goshi Ozaki, Shigemi Kamoshida, Isao Koishi, Yukio Kubo, Noriyuki Komatsu, Tetsuo Uesugi
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Patent number: 11269290Abstract: A process cartridge includes a photosensitive drum, a developing roller configured to develop a latent image on the photosensitive drum with toner, and a coupling member having a rotational axis, with the coupling member being operatively connected to the photosensitive drum. The coupling member includes a cylindrical portion having an outer surface and an inner surface that extends about the rotational axis of the coupling member, an arm portion extending from the inner surface of the cylindrical portion, and a projection projecting from the arm portion in a direction toward the rotational axis of the coupling member. The arm portion and the projection are movable relative to the inner surface.Type: GrantFiled: October 7, 2019Date of Patent: March 8, 2022Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
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Publication number: 20220066385Abstract: A coupling member is provided for a cartridge that includes a cylindrical photosensitive drum that is rotatable about an axis. The coupling member is operatively connected to the photosensitive drum and is capable of receiving a rotational force for rotating the photosensitive drum.Type: ApplicationFiled: November 9, 2021Publication date: March 3, 2022Inventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
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Patent number: 11262694Abstract: A coupling member drum unit for a cartridge includes a cylindrical photosensitive drum having an axis L1 and a coupling member operatively connected to the photosensitive drum. The coupling member includes a drum flange provided at an end of the photosensitive drum, with a part of the drum flange being positioned inside of the photosensitive drum, and a connecting part operatively connected to the drum flange. The connecting part includes a cap positioned adjacent to the drum flange, an arm portion extending from the cap in a direction of the axis L1, and a projection projecting from the arm portion in a direction perpendicular to the axis L1, with the projection being movable between a first position and a second position, and with an end of the projection being closer to the axis L1 in the first position than in the second position.Type: GrantFiled: October 7, 2019Date of Patent: March 1, 2022Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
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Patent number: 11262693Abstract: A drum unit for a cartridge includes a cylindrical photosensitive drum having an axis L1 and a coupling member operatively connected to the photosensitive drum. The coupling member includes a first member having a cylindrical portion, a part of the first member being positioned inside of the photosensitive drum and a part of the first member being positioned outside of the photosensitive drum. The coupling member also includes a second member operatively connected to first member, the second member including a plurality of arm portions that are movable relative to the first member, with at least a part of each of the arm portions being positioned inside of the photosensitive drum and inside of the first member.Type: GrantFiled: October 7, 2019Date of Patent: March 1, 2022Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
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Patent number: 11221583Abstract: A drum unit for a cartridge includes a cylindrical photosensitive drum having an axis L1 and a coupling member operatively connected to the photosensitive drum. The coupling member includes a first member having a cylindrical portion, a part of the first member being positioned inside of the photosensitive drum and a part of the first member being positioned outside of the photosensitive drum. The coupling member also includes a second member operatively connected to first member, the second member including a plurality of arm portions that are movable relative to the first member, with at least a part of each of the arm portions being positioned inside of the photosensitive drum and inside of the first member.Type: GrantFiled: October 7, 2019Date of Patent: January 11, 2022Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
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Publication number: 20210341870Abstract: A drum unit includes a photosensitive drum in a coupling member. The coupling member includes an engageable member having a driving force receiving portion which is capable of entering a recess of a driving shaft to receive a driving force for rotating photosensitive drum. The coupling member includes a holding member configured to hold said engageable member so as to be slidable at least in a radial direction of said drum unit.Type: ApplicationFiled: July 12, 2021Publication date: November 4, 2021Inventors: Tomonori Mori, Tetsuo Uesugi
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Patent number: 11150591Abstract: A drum unit includes a photosensitive drum in a coupling member. The coupling member includes an engageable member having a driving force receiving portion which is capable of entering a recess of a driving shaft to receive a driving force for rotating photosensitive drum. The coupling member includes a holding member configured to hold said engageable member so as to be slidable at least in a radial direction of said drum unit.Type: GrantFiled: September 29, 2020Date of Patent: October 19, 2021Assignee: Canon Kabushiki KaishaInventors: Tomonori Mori, Tetsuo Uesugi
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Publication number: 20210286312Abstract: A drum unit detachably mountable to a main assembly of an electrophotographic image forming apparatus includes a photosensitive drum and a coupling member provided on the photosensitive drum. The coupling member includes a driving force receiving portion and a supporting portion movably supporting the driving force receiving portion. The supporting portion includes a first extended portion and a second extended portion which extend at least in an axial direction of the photosensitive drum.Type: ApplicationFiled: June 2, 2021Publication date: September 16, 2021Inventors: Tetsuo Uesugi, Masato Tanabe, Tomonori Mori, Daisuke Abe, Tadayuki Tsuda, Hideshi Kawaguchi
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Patent number: 11086270Abstract: A process cartridge includes a photosensitive drum, a developing roller configured to develop a latent image on the photosensitive drum with toner, and a coupling member having a rotational axis, with the coupling member being operatively connected to the photosensitive drum. The coupling member includes a cylindrical portion having an outer surface and an inner surface that extends about the rotational axis of the coupling member, an arm portion extending from the inner surface of the cylindrical portion, and a projection projecting from the arm portion in a direction toward the rotational axis of the coupling member. The arm portion and the projection are movable relative to the inner surface.Type: GrantFiled: October 7, 2019Date of Patent: August 10, 2021Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
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Patent number: 11079717Abstract: A coupling member drum unit for a cartridge includes a cylindrical photosensitive drum having an axis L1 and a coupling member operatively connected to the photosensitive drum. The coupling member includes a drum flange provided at an end of the photosensitive drum, with a part of the drum flange being positioned inside of the photosensitive drum, and a connecting part operatively connected to the drum flange. The connecting part includes a cap positioned adjacent to the drum flange, an arm portion extending from the cap in a direction of the axis L1, and a projection projecting from the arm portion in a direction perpendicular to the axis L1, with the projection being movable between a first position and a second position, and with an end of the projection being closer to the axis L1 in the first position than in the second position.Type: GrantFiled: October 7, 2019Date of Patent: August 3, 2021Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
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Patent number: 11073790Abstract: A process cartridge includes a photosensitive drum and a coupling member operatively connected to the photosensitive drum, with the coupling member including an arm portion and a projection projecting from the arm portion. The arm portion of the coupling member extends from a point that is upstream in the rotational direction of the photosensitive drum towards a point that is downstream in the rotation direction of the photosensitive drum.Type: GrantFiled: October 7, 2019Date of Patent: July 27, 2021Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
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Patent number: 11073791Abstract: A cartridge includes a casing and a photosensitive drum rotatably supported by the casing, with the photosensitive drum having a first end and a second end. A coupling member is provided adjacent to the first end of the photosensitive drum, with the coupling member being operatively connected to the photosensitive drum. The coupling member includes (i) a cylindrical portion, (ii) a first projection at least partially positioned inside of the cylindrical portion, (iii) a second projection at least partially positioned inside of the cylindrical portion, (iv) an elastically movable projection at least partially positioned inside of the cylindrical portion, and (v) a wall extending in a direction perpendicular to the rotational axis and positioned between the second end of the photosensitive drum and the first and second projections.Type: GrantFiled: November 11, 2019Date of Patent: July 27, 2021Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
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Patent number: 11067948Abstract: A drum unit for a cartridge includes a photosensitive drum and a coupling member provided adjacent to an end of the photosensitive drum. The coupling member includes an arm portion, and a projection projected from the arm portion in a direction towards a rotational axis of the coupling member, with a part of the projection inclined relative to the rotational axis of the coupling member. The arm portion extends in a circumferential direction of the coupling member, and, as measured in a direction perpendicular to the rotational axis of the coupling member, a distance between the inclined part of the projection and the rotational axis of the coupling member increases as the distance in the direction of the rotational axis of the coupling member to another end of the photosensitive drum decreases.Type: GrantFiled: October 7, 2019Date of Patent: July 20, 2021Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
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Patent number: 11067942Abstract: A drum unit detachably mountable to a main assembly of an electrophotographic image forming apparatus includes a photosensitive drum and a coupling member provided on the photosensitive drum. The coupling member includes a driving force receiving portion and a supporting portion movably supporting the driving force receiving portion. The supporting portion includes a first extended portion and a second extended portion which extend at least in an axial direction of the photosensitive drum.Type: GrantFiled: April 27, 2020Date of Patent: July 20, 2021Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Masato Tanabe, Tomonori Mori, Daisuke Abe, Tadayuki Tsuda, Hideshi Kawaguchi
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Patent number: 11067947Abstract: A Process cartridge includes a photosensitive drum and a coupling member operatively connected to the photosensitive drum, with the coupling member including an arm portion and a projection projecting from the arm portion, the arm portion being capable of transmitting driving force from the projection towards the photosensitive drum. The arm portion of the coupling member extends from a point that is upstream in the rotational direction of the photosensitive drum towards a point that is downstream in the rotation direction of the photosensitive drum.Type: GrantFiled: October 7, 2019Date of Patent: July 20, 2021Assignee: Canon Kabushiki KaishaInventors: Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano