Patents by Inventor Kazutaka Sueshige
Kazutaka Sueshige 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: 11874625Abstract: A second unit includes a restricted portion that comes into contact with a restricting portion provided to a body of an apparatus, the restricted portion coming into contact with the restricting portion, in order to restrict the movement of a developer carrier in a direction to make contact with an image carrier, when a developing cartridge has not reached a predetermined attachment position, and not coming into contact with the restricting portion when the developing cartridge is in the predetermined attachment position.Type: GrantFiled: November 30, 2022Date of Patent: January 16, 2024Assignee: Canon Kabushiki KaishaInventors: Osamu Anan, Masato Tanabe, Tsukasa Abe, Kazutaka Sueshige
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Publication number: 20230408951Abstract: A developer accommodating device includes a frame extending in a longitudinal direction thereof and an opening portion provided on the frame. The frame includes a guide portion to mount the developer accommodating device on a developing unit along a mounting direction crossing the longitudinal direction, a first portion including first and second chambers arranged in parallel in a first direction crossing the longitudinal direction, and a second portion communicating with the first and second chambers with respect to the longitudinal direction and a volume thereof is larger than that of the first portion. The first chamber, in which the opening portion is formed, does not directly communicate with the second chamber with respect to the first direction but communicates with the second chamber via the second portion. As seen in the longitudinal direction, a cross sectional area of the second chamber is equal to or larger than that of the first chamber.Type: ApplicationFiled: September 1, 2023Publication date: December 21, 2023Inventors: Naoya Asanuma, Daisuke Abe, Yu Fukasawa, Kazutaka Sueshige
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Patent number: 11809123Abstract: An image forming unit to be attached to an apparatus body of an image forming apparatus includes a first cartridge including a driven portion configured to rotate on a first rotational axis; and a second cartridge configured separable from the first cartridge. The second cartridge includes an input portion configured to receive driving force from the apparatus body; and a drive transmission portion configured to rotate on a second rotational axis and to transmit the driving force to the driven portion.Type: GrantFiled: May 24, 2022Date of Patent: November 7, 2023Assignee: Canon Kabushiki KaishaInventors: Kazutaka Sueshige, Tatsuro Harada, Takayuki Yada, Akinobu Hirayama
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Patent number: 11782360Abstract: A developer accommodating device includes a frame extending in a longitudinal direction and an opening portion provided on the frame. The frame includes a guide portion to mount the developer accommodating device on a developing unit along a mounting direction crossing the longitudinal direction, a first portion including first and second chambers arranged in parallel in a first direction crossing the longitudinal direction, and a second portion communicating with the first and second chambers with respect to the longitudinal direction and having a volume larger than that of the first portion. The first chamber, in which the opening portion is formed, does not directly communicate with the second chamber with respect to the first direction but communicates with the second chamber via the second portion. As seen in the longitudinal direction, a cross sectional area of the second chamber is equal to or larger than that of the first chamber.Type: GrantFiled: May 11, 2022Date of Patent: October 10, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Naoya Asanuma, Daisuke Abe, Yu Fukasawa, Kazutaka Sueshige
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Publication number: 20230297000Abstract: A movable member includes a frame, a mounting portion, a rotatable image bearing member, a charging member, and a cleaning member. The cleaning member includes a base portion including a first surface positioned on one side of the frame, a second surface positioned on the other side of the frame, and a third surface, and includes a projected portion. The projected portion includes a first side surface positioned on the aforementioned the other side and a second side surface positioned on the aforementioned one side. The first side surface is positioned between the first surface and the second surface. The first side surface constitutes an end surface of the projected portion on the aforementioned the other side with respect to the axial direction, and the second side surface constitutes an end surface of the projected portion on the aforementioned one side with respect to the axial direction.Type: ApplicationFiled: May 22, 2023Publication date: September 21, 2023Inventors: Kazutaka Sueshige, Daisuke Abe
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Patent number: 11703774Abstract: A movable member includes a frame, a mounting portion, a rotatable image bearing member, a charging member, and a cleaning member. The cleaning member includes a base portion including a first surface positioned on one side of the frame, a second surface positioned on the other side of the frame, and a third surface, and includes a projected portion. The projected portion includes a first side surface positioned on the aforementioned the other side and a second side surface positioned on the aforementioned one side. The first side surface is positioned between the first surface and the second surface. The first side surface constitutes an end surface of the projected portion on the aforementioned the other side with respect to the axial direction, and the second side surface constitutes an end surface of the projected portion on the aforementioned one side with respect to the axial direction.Type: GrantFiled: September 15, 2021Date of Patent: July 18, 2023Assignee: Canon Kabushiki KaishaInventors: Kazutaka Sueshige, Daisuke Abe
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Patent number: 11698600Abstract: Disclosed is a developing apparatus including: a developer bearing member that bears a developer; a developing frame body that rotatably supports the developer bearing member; a one-end side end member that supports one-end side in an axis direction of the developer bearing member of the developing frame body; and another-end side end member that supports the other-end side in the axis direction of the developer bearing member of the developing frame body. Each of the one-end side end member and the other-end side end member is independently movable with respect to the developing frame body.Type: GrantFiled: May 27, 2022Date of Patent: July 11, 2023Assignee: Canon Kabushiki KaishaInventors: Masato Tanabe, Kazutaka Sueshige, Teruhiko Sasaki, Tsukasa Abe, Osamu Anan
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Patent number: 11656572Abstract: A second unit includes a restricted portion that comes into contact with a restricting portion provided to a body of an apparatus, the restricted portion coming into contact with the restricting portion, in order to restrict the movement of a developer carrier in a direction to make contact with an image carrier, when a developing cartridge has not reached a predetermined attachment position, and not coming into contact with the restricting portion when the developing cartridge is in the predetermined attachment position.Type: GrantFiled: January 19, 2021Date of Patent: May 23, 2023Assignee: Canon Kabushiki KaishaInventors: Osamu Anan, Masato Tanabe, Tsukasa Abe, Kazutaka Sueshige
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Publication number: 20230089182Abstract: A second unit includes a restricted portion that comes into contact with a restricting portion provided to a body of an apparatus, the restricted portion coming into contact with the restricting portion, in order to restrict the movement of a developer carrier in a direction to make contact with an image carrier, when a developing cartridge has not reached a predetermined attachment position, and not coming into contact with the restricting portion when the developing cartridge is in the predetermined attachment position.Type: ApplicationFiled: November 30, 2022Publication date: March 23, 2023Inventors: Osamu Anan, Masato Tanabe, Tsukasa Abe, Kazutaka Sueshige
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Patent number: 11507016Abstract: A developing apparatus includes a developer carrying member configured to carry developer, and a developer supply member configured to supply the developer to the developer carrying member, the developer supply member including a shaft, first and second driving members disposed at a first end and a second end of the shaft, respectively, and a toner supply unit disposed between the first end and the second end of the shaft, wherein the first driving member receives a driving force for rotating the developer supply member, and the second driving member outputs the driving force, and wherein the second driving member is mounted to the shaft without play in a rotational direction of the developer supply member with respect to the shaft.Type: GrantFiled: July 16, 2020Date of Patent: November 22, 2022Assignee: Canon Kabushiki KaishaInventors: Kazuki Matsumoto, Tsukasa Abe, Kazutaka Sueshige
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Publication number: 20220365463Abstract: A developer accommodating device includes a frame extending in a longitudinal direction thereof and an opening portion provided on the frame. The frame includes a guide portion to mount the developer accommodating device on a developing unit along a mounting direction crossing the longitudinal direction, a first portion including first and second chambers arranged in parallel in a first direction crossing the longitudinal direction, and a second portion communicating with the first and second chambers with respect to the longitudinal direction and a volume thereof is larger than that of the first portion. The first chamber, in which the opening portion is formed, does not directly communicate with the second chamber with respect to the first direction but communicates with the second chamber via the second portion. As seen in the longitudinal direction, a cross sectional area of the second chamber is equal to or larger than that of the first chamber.Type: ApplicationFiled: May 11, 2022Publication date: November 17, 2022Inventors: Naoya Asanuma, Daisuke Abe, Yu Fukasawa, Kazutaka Sueshige
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Publication number: 20220283535Abstract: An image forming unit to be attached to an apparatus body of an image forming apparatus includes a first cartridge including a driven portion configured to rotate on a first rotational axis; and a second cartridge configured separable from the first cartridge. The second cartridge includes an input portion configured to receive driving force from the apparatus body; and a drive transmission portion configured to rotate on a second rotational axis and to transmit the driving force to the driven portion.Type: ApplicationFiled: May 24, 2022Publication date: September 8, 2022Inventors: Kazutaka Sueshige, Tatsuro Harada, Takayuki Yada, Akinobu Hirayama
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Publication number: 20220283536Abstract: Disclosed is a developing apparatus including: a developer bearing member that bears a developer; a developing frame body that rotatably supports the developer bearing member; a one-end side end member that supports one-end side in an axis direction of the developer bearing member of the developing frame body; and another-end side end member that supports the other-end side in the axis direction of the developer bearing member of the developing frame body. Each of the one-end side end member and the other-end side end member is independently movable with respect to the developing frame body.Type: ApplicationFiled: May 27, 2022Publication date: September 8, 2022Inventors: Masato Tanabe, Kazutaka Sueshige, Teruhiko Sasaki, Tsukasa Abe, Osamu Anan
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Patent number: 11378909Abstract: An image forming unit to be attached to an apparatus body of an image forming apparatus includes a first cartridge including a driven portion configured to rotate on a first rotational axis; and a second cartridge configured separable from the first cartridge. The second cartridge includes an input portion configured to receive driving force from the apparatus body; and a drive transmission portion configured to rotate on a second rotational axis and to transmit the driving force to the driven portion.Type: GrantFiled: March 15, 2021Date of Patent: July 5, 2022Assignee: Canon Kabushiki KaishaInventors: Kazutaka Sueshige, Tatsuro Harada, Takayuki Yada, Akinobu Hirayama
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Patent number: 11372365Abstract: A developing cartridge includes a developing frame body rotatably supporting a developing roller. A first end member is attached to the first end of the developing frame and a second end member is attached to the second end of the developing frame body. The first end member and the second end member are rotatable independently of each other and relative to the developing frame body about a rotational axis common to the first end member and the second end member, and with rotation of the developing frame body relative to the first end member and the second end member, the developing roller moves from a first position to a second position in a direction that crosses a position of an axis of the developing roller when the developing roller is in the first position.Type: GrantFiled: May 10, 2021Date of Patent: June 28, 2022Assignee: Canon Kabushiki KaishaInventors: Masato Tanabe, Kazutaka Sueshige, Teruhiko Sasaki, Tsukasa Abe, Osamu Anan
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Publication number: 20220113648Abstract: A movable member includes a frame, a mounting portion, a rotatable image bearing member, a charging member, and a cleaning member. The cleaning member includes a base portion including a first surface positioned on one side of the frame, a second surface positioned on the other side of the frame, and a third surface, and includes a projected portion. The projected portion includes a first side surface positioned on the aforementioned the other side and a second side surface positioned on the aforementioned one side. The first side surface is positioned between the first surface and the second surface. The first side surface constitutes an end surface of the projected portion on the aforementioned the other side with respect to the axial direction, and the second side surface constitutes an end surface of the projected portion on the aforementioned one side with respect to the axial direction.Type: ApplicationFiled: September 15, 2021Publication date: April 14, 2022Inventors: Kazutaka Sueshige, Daisuke Abe
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Patent number: 11249437Abstract: A developing cartridge includes a frame rotatably supporting a developing roller. The developing cartridge also includes a first supporting member attached to a first end of the frame, with the first supporting member being movable relative to the frame. The developing cartridge further includes a second supporting member attached to a second end of the frame, with the second supporting member being movable relative to the frame and the first supporting member.Type: GrantFiled: July 2, 2020Date of Patent: February 15, 2022Assignee: Canon Kabushiki KaishaInventors: Masato Tanabe, Kazutaka Sueshige, Teruhiko Sasaki, Tsukasa Abe, Osamu Anan
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Publication number: 20210263463Abstract: Disclosed is a developing apparatus including: a developer bearing member that bears a developer; a developing frame body that rotatably supports the developer bearing member; a one-end side end member that supports one-end side in an axis direction of the developer bearing member of the developing frame body; and another-end side end member that supports the other-end side in the axis direction of the developer bearing member of the developing frame body. Each of the one-end side end member and the other-end side end member is independently movable with respect to the developing frame body.Type: ApplicationFiled: May 10, 2021Publication date: August 26, 2021Inventors: Masato Tanabe, Kazutaka Sueshige, Teruhiko Sasaki, Tsukasa Abe, Osamu Anan
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Publication number: 20210216034Abstract: An image forming unit to be attached to an apparatus body of an image forming apparatus includes a first cartridge including a driven portion configured to rotate on a first rotational axis; and a second cartridge configured separable from the first cartridge. The second cartridge includes an input portion configured to receive driving force from the apparatus body; and a drive transmission portion configured to rotate on a second rotational axis and to transmit the driving force to the driven portion.Type: ApplicationFiled: March 15, 2021Publication date: July 15, 2021Inventors: Kazutaka Sueshige, Tatsuro Harada, Takayuki Yada, Akinobu Hirayama
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Publication number: 20210141332Abstract: A second unit includes a restricted portion that comes into contact with a restricting portion provided to a body of an apparatus, the restricted portion coming into contact with the restricting portion, in order to restrict the movement of a developer carrier in a direction to make contact with an image carrier, when a developing cartridge has not reached a predetermined attachment position, and not coming into contact with the restricting portion when the developing cartridge is in the predetermined attachment position.Type: ApplicationFiled: January 19, 2021Publication date: May 13, 2021Inventors: Osamu Anan, Masato Tanabe, Tsukasa Abe, Kazutaka Sueshige