Patents by Inventor Hiroyuki Munetsugu
Hiroyuki Munetsugu 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: 20230185234Abstract: In a cartridge structure employing an inclinable coupling member engaging with a rotational force transmitting portion of an electrophotographic image forming apparatus, the coupling member is unable to engage with the rotational force transmitting portion of the electrophotographic image forming apparatus when the mounting and dismounting direction and the developing/spacing direction relative to the electrophotographic image forming apparatus of different from each other. Under the circumstances, a coupling lever contacting and retracting relative to the coupling member in interrelation with the mounting and dismounting operation of a developing cartridge B1, and a coupling spring for the coupling lever to apply an urging force to the coupling member are provided.Type: ApplicationFiled: February 7, 2023Publication date: June 15, 2023Inventors: Yosuke Kashiide, Masaaki Sato, Hiroyuki Munetsugu
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Publication number: 20230176503Abstract: A toner container includes a toner accommodating portion, a discharge portion, a shutter, a sealing member, and a guiding portion. In a case where a direction from the toner accommodating portion toward the discharge portion in a rotational axis direction is a first direction, where a direction opposite to the first direction is a second direction, and where an end portion of the sealing member on a downstream side of the first direction is a first end portion, a downstream end portion of the guiding portion is positioned downstream of the first end portion of the sealing member with respect to the first direction. The downstream end portion of the guiding portion overlaps with the sealing member as viewed in the rotational axis direction, and includes an inclined surface inclined so as to approach the contact surface of the seal member as it goes in the second direction.Type: ApplicationFiled: December 7, 2022Publication date: June 8, 2023Inventors: Yuichi Fukui, Goshi Ozaki, Mitsuhiro Sato, Tetsushi Uneme, Hiroyuki Munetsugu
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Patent number: 11662673Abstract: A toner container includes a toner accommodating body, a nozzle in fluid communication with the toner accommodating body, and a shutter configured to open and close the opening of the nozzle. A projection is positioned at an end portion of the toner container in a direction of the rotational axis, the projection having an inner peripheral surface facing towards the rotational axis.Type: GrantFiled: August 31, 2022Date of Patent: May 30, 2023Assignee: Canon Kabushiki KaishaInventors: Goshi Ozaki, Hiroyuki Munetsugu, Teruhiko Sasaki, Tachio Kawai, Akinobu Hirayama, Toshiki Fujino
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Patent number: 11662687Abstract: In a cartridge structure employing an inclinable coupling member engaging with a rotational force transmitting portion of an electrophotographic image forming apparatus, the coupling member is unable to engage with the rotational force transmitting portion of the electrophotographic image forming apparatus when the mounting and dismounting direction and the developing/spacing direction relative to the electrophotographic image forming apparatus of different from each other. Under the circumstances, a coupling lever contacting and retracting relative to the coupling member in interrelation with the mounting and dismounting operation of a developing cartridge B1, and a coupling spring for the coupling lever to apply an urging force to the coupling member are provided.Type: GrantFiled: February 7, 2022Date of Patent: May 30, 2023Assignee: Canon Kabushiki KaishaInventors: Yosuke Kashiide, Masaaki Sato, Hiroyuki Munetsugu
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Publication number: 20230152729Abstract: A container for accommodating a content of powder or a liquid includes an accommodating portion; an end portion including a rotatable member and a discharging portion which includes a discharge opening and a passage, wherein the end portion is on a side opposite from the accommodating portion with respect to a rotational axis direction; and a flange portion extending in a radial direction of a phantom circle about the rotational axis, wherein as viewed in the rotational axis direction, an outer edge of the flange portion includes an arcuate portion which is on an outermost side of the end portion with respect to the radial direction and which is formed along the phantom circle about the rotational axis and includes a connecting portion which connects a first point and a second point on the phantom circle and which is provided in a region inside the phantom circle.Type: ApplicationFiled: November 9, 2022Publication date: May 18, 2023Inventors: Shinjiro Toba, Hiroyuki Munetsugu, Mitsuhiro Sato
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Publication number: 20230143399Abstract: An image forming system includes a toner container and an image forming apparatus, the toner container including a first toner containing portion, a container base portion having a discharge port for discharging toner, and a container shutter that is moved between open and closed positions and includes an engaged portion, wherein the image forming apparatus includes a main body base portion that detachably attaches the toner container and has a receiving port for receiving the toner and, a second toner containing portion, a movable member that is moved between first and second positions and includes an engaging portion that engages with the engaged portion, a regulating member that is moved between a regulation position and a regulation release position, and an urging member that urges the movable member to move from the first position to the second position when the regulating member is located at the regulation release position.Type: ApplicationFiled: January 4, 2023Publication date: May 11, 2023Inventors: Hiroyuki Munetsugu, Shohei Katsuya
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Patent number: 11640127Abstract: A toner container includes a toner accommodating body, a nozzle in fluid communication with the toner accommodating body, and a shutter configured to open and close the opening of the nozzle. A projection is positioned at an end portion of the toner container in a direction of the rotational axis, the projection having an inner peripheral surface facing towards the rotational axis.Type: GrantFiled: August 31, 2022Date of Patent: May 2, 2023Assignee: Canon Kabushiki KaishaInventors: Goshi Ozaki, Hiroyuki Munetsugu, Teruhiko Sasaki, Tachio Kawai, Akinobu Hirayama, Toshiki Fujino
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Patent number: 11630416Abstract: In a cartridge structure employing an inclinable coupling member engaging with a rotational force transmitting portion of an electrophotographic image forming apparatus, the coupling member is unable to engage with the rotational force transmitting portion of the electrophotographic image forming apparatus when the mounting and dismounting direction and the developing/spacing direction relative to the electrophotographic image forming apparatus of different from each other. Under the circumstances, a coupling lever contacting and retracting relative to the coupling member in interrelation with the mounting and dismounting operation of a developing cartridge B1, and a coupling spring for the coupling lever to apply an urging force to the coupling member are provided.Type: GrantFiled: February 7, 2022Date of Patent: April 18, 2023Assignee: Canon Kabushiki KaishaInventors: Yosuke Kashiide, Masaaki Sato, Hiroyuki Munetsugu
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Publication number: 20230096202Abstract: A toner container includes a toner storage unit, a container base portion including a discharge port provided on an outer surface of the container base portion, the outer surface extending in a first direction, the discharge port communicating with the toner storage unit, and a container shutter configured to be rotatable about a rotation axis extending in a direction along the first direction between a shielding position and an open position. The container base portion includes an engaging portion configured to be engaged with an engaged portion of the image forming apparatus so that rotation of the container base portion with respect to the image forming apparatus about the rotation axis is restricted. At least a part of the engaging portion of the container base portion is exposed from the container shutter in a case where the container shutter is in the shielding position.Type: ApplicationFiled: December 2, 2022Publication date: March 30, 2023Inventors: Masaaki Sato, Hiroyuki Munetsugu, Isao Koishi, Hiroshi Takarada, Shoei Katsuya, Shunsuke Hijinkata, Goshi Ozaki, Mitsuhiro Sato
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Publication number: 20230096298Abstract: A container for accommodating a content of powder or a liquid includes an accommodating portion for accommodating the content; a top end portion including a discharging portion and a shielding member, wherein the discharging portion includes a discharge opening for discharging the content to an outside of the container and a passage for permitting passing of the content toward the discharge opening, and the shielding member shields the discharge opening; and a cap detachably mounted to the top end portion, wherein the cap includes a main body portion covering at least a part of the top end portion and a fixing portion fixed to the top end portion and connected to the main body portion, and wherein the main body portion of the cap is separated from the fixing portion by being rotated about a rotational axis thereof relative to the top end portion.Type: ApplicationFiled: September 19, 2022Publication date: March 30, 2023Inventors: Mitsuhiro Sato, Yukio Kubo, Hiroyuki Munetsugu, Takashi Kimura, Yuko Harada
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Publication number: 20230066319Abstract: A cartridge for an image forming apparatus includes: a process unit to be used to form an image; a first member including a first resin material; a second member including a second resin material having higher flame retardant capability than the first resin material; and an electrode member including a contact section configured to be supplied with power from an apparatus main body of the image forming apparatus. The electrode member is configured to electrically connect the apparatus main body to the process unit. The second resin material of the second member has a greater density than the first resin material of the first member. The contact section is located in the vicinity of the first and second members and is closer to the second member than to the first member.Type: ApplicationFiled: November 7, 2022Publication date: March 2, 2023Inventors: Yuichi Sakakibara, Yosuke Kashiide, Hiroyuki Munetsugu, Yuko Harada, Goshi Ozaki, Masanari Morioka, Naoki Hayashi, Hideki Kakuta, Hiroki Shimizu, Teruhiko Sasaki, Tachio Kawai, Takatoshi Hamada
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Patent number: 11592766Abstract: A toner container includes a toner accommodating body and a nozzle including an opening configured to form a part of a discharge passageway through which toner may be discharged to outside of the toner container. A shutter is configured to open and close the opening of the nozzle, with the shutter being rotatable about a rotational axis between a first position in which the shutter closes the opening of the nozzle and a second position in which an opening of the shutter aligns with the opening of the nozzle to form the discharge passageway. A projection is positioned at an end portion of the toner container, with the projection including a first surface, a second surface, and a third surface.Type: GrantFiled: August 31, 2022Date of Patent: February 28, 2023Assignee: Canon Kabushiki KaishaInventors: Goshi Ozaki, Hiroyuki Munetsugu, Teruhiko Sasaki, Tachio Kawai, Akinobu Hirayama, Toshiki Fujino
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Publication number: 20230048810Abstract: An attached portion of an image forming apparatus includes a rotating member of which at least a part is exposed outside the image forming apparatus when the developer container is attached, and a rotation restricting mechanism that is movable between a restricting position to restrict rotation of the rotating member and an allowable position to allow rotation of the rotating member, and includes a restricting member that is at the restricting position when the developer container is not attached. The developer container is attached to the attached portion so that the discharging portion engaging portion and the shutter engaging portions are engaged with the frame engaged portions and the rotating member engaged portions respectively when the container shutter is in the close state, and the restricting member moves from the restricting position to the allowable position when the developer container is attached to the attached portion.Type: ApplicationFiled: November 3, 2022Publication date: February 16, 2023Inventors: Kazuaki Nogami, Takeo Kawanami, Akinori Mitsumata, Hiroyuki Munetsugu, Goshi Ozaki
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Publication number: 20230031856Abstract: A process cartridge detachably mountable to a main assembly of an image forming apparatus, the process cartridge includes a photosensitive drum unit including a photosensitive drum, and a first and second positioning portions Configured to position the photosensitive drum unit relative to the main assembly; and a developing unit connected with the photosensitive drum unit, the developing unit including a developing roller, a storing means having a contact surface electrically connectable with a main assembly contact of the main assembly to communicate with the main assembly. As seen in an axial direction of the photosensitive drum, a first line segment connecting the first positioning portion and the second positioning portion with each other and a first linear line passing through the contact surface and perpendicular to the contact surface crosses with each other.Type: ApplicationFiled: October 13, 2022Publication date: February 2, 2023Inventors: Hiroyuki Munetsugu, Ryota Shibuya, Goshi Ozaki
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Patent number: 11567445Abstract: A process cartridge detachably mountable to a main assembly of an image forming apparatus, the process cartridge includes a photosensitive drum unit including a photosensitive drum, and a first and second positioning portions Configured to position the photosensitive drum unit relative to the main assembly; and a developing unit connected with the photosensitive drum unit, the developing unit including a developing roller, a storing means having a contact surface electrically connectable with a main assembly contact of the main assembly to communicate with the main assembly. As seen in an axial direction of the photosensitive drum, a first line segment connecting the first positioning portion and the second positioning portion with each other and a first linear line passing through the contact surface and perpendicular to the contact surface crosses with each other.Type: GrantFiled: December 26, 2019Date of Patent: January 31, 2023Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Munetsugu, Ryota Shibuya, Goshi Ozaki
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Publication number: 20230017354Abstract: A toner container includes a toner accommodating body and a nozzle including an opening configured to form a part of a discharge passageway through which toner may be discharged to outside of the toner container. A shutter is configured to open and close the opening of the nozzle, with the shutter being rotatable about a rotational axis between a first position in which the shutter closes the opening of the nozzle and a second position in which an opening of the shutter aligns with the opening of the nozzle to form the discharge passageway. A projection is positioned at an end portion of the toner container, with the projection including a first surface, a second surface, and a third surface.Type: ApplicationFiled: August 31, 2022Publication date: January 19, 2023Inventors: Goshi Ozaki, Hiroyuki Munetsugu, Teruhiko Sasaki, Tachio Kawai, Akinobu Hirayama, Toshiki Fujino
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Patent number: 11556080Abstract: An image forming system includes a toner container and an image forming apparatus, the toner container including a first toner containing portion, a container base portion having a discharge port for discharging toner, and a container shutter that is moved between open and closed positions and includes an engaged portion, wherein the image forming apparatus includes a main body base portion that detachably attaches the toner container and has a receiving port for receiving the toner and, a second toner containing portion, a movable member that is moved between first and second positions and includes an engaging portion that engages with the engaged portion, a regulating member that is moved between a regulation position and a regulation release position, and an urging member that urges the movable member to move from the first position to the second position when the regulating member is located at the regulation release position.Type: GrantFiled: November 24, 2021Date of Patent: January 17, 2023Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Munetsugu, Shohei Katsuya
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Publication number: 20220413414Abstract: A toner container includes a toner accommodating body, a nozzle in fluid communication with the toner accommodating body, and a shutter configured to open and close the opening of the nozzle. A projection is positioned at an end portion of the toner container in a direction of the rotational axis, the projection having an inner peripheral surface facing towards the rotational axis.Type: ApplicationFiled: August 31, 2022Publication date: December 29, 2022Inventors: Goshi Ozaki, Hiroyuki Munetsugu, Teruhiko Sasaki, Tachio Kawai, Akinobu Hirayama, Toshiki Fujino
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Publication number: 20220404738Abstract: An image forming apparatus to which a toner container is detachably mountable includes a mounting portion to which the toner container is detachably mountable and which includes a receiving port for receiving toner supplied from the toner container, a passage for permitting passing of the toner received through the receiving port and provided with a through hole, and a filter portion provided so as to cover the through hole and for permitting passing of air; and an accommodating portion configured to accommodate the toner received through the receiving port. At least a part of the through hole overlaps with the receiving port as viewed in a horizontal direction perpendicular to a direction of gravitation.Type: ApplicationFiled: August 29, 2022Publication date: December 22, 2022Inventors: Shinjiro Toba, Hiroshi Takarada, Hiroyuki Munetsugu, Goshi Ozaki, Sohta Sugimoto, Mitsuhiro Sato, Shinichi Nishida, Yuichi Fukui, Yukio Kubo
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Patent number: 11526099Abstract: An attached portion of an image forming apparatus includes a rotating member of which at least a part is exposed outside the image forming apparatus when the developer container is attached, and a rotation restricting mechanism that is movable between a restricting position to restrict rotation of the rotating member and an allowable position to allow rotation of the rotating member, and includes a restricting member that is at the restricting position when the developer container is not attached. The developer container is attached to the attached portion so that the discharging portion engaging portion and the shutter engaging portions are engaged with the frame engaged portions and the rotating member engaged portions respectively when the container shutter is in the close state, and the restricting member moves from the restricting position to the allowable position when the developer container is attached to the attached portion.Type: GrantFiled: December 22, 2021Date of Patent: December 13, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Kazuaki Nogami, Takeo Kawanami, Akinori Mitsumata, Hiroyuki Munetsugu, Goshi Ozaki