Patents by Inventor Kohei Koguchi

Kohei Koguchi 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).

  • Publication number: 20240152073
    Abstract: An image forming apparatus includes a developing device including a developing roller and a storage frame including a storage portion configured to store toner, a body frame with an opening, a toner cartridge which is configured to store the toner, which is attachable to and detachable from the developing device through the opening, which is movable to an attached position and a retracted position, and which is configured to supply the toner to the storage portion in a state in which the toner cartridge is at the attached position, and a moving device configured to move the toner cartridge from the attached position to the retracted position. The toner cartridge is configured such that at least part of the toner cartridge projects outside the body frame in a state in which the toner cartridge is at the retracted position.
    Type: Application
    Filed: November 6, 2023
    Publication date: May 9, 2024
    Inventors: Jumpei Nitta, Tomoya Tateishi, Osamu Sasaoka, Kohei Koguchi, Shuma Hiasa, Tachio Kawai
  • Publication number: 20240152074
    Abstract: An image forming apparatus includes a rotary including a first developing roller, a second developing roller, a first storage frame, and a second storage frame, a body frame with an opening, a first toner cartridge, a second toner cartridge, a first support member which is configured to support the first toner cartridge, and a second support member which is configured to support the second toner cartridge. The first support member is movable with respect to the first storage frame such that the first toner cartridge moves from the first attached position to the first retracted position. The second support member is movable with respect to the second storage frame such that the second toner cartridge moves from the second attached position to the second retracted position.
    Type: Application
    Filed: November 7, 2023
    Publication date: May 9, 2024
    Inventors: Jumpei Nitta, Tomoya Tateishi, Osamu Sasaoka, Kohei Koguchi, Shuma Hiasa, Tachio Kawai, Kenji Watanabe
  • Publication number: 20240152083
    Abstract: An image forming apparatus includes a rotary configured to rotate and including a developing roller and a storage frame including a storage portion configured to store toner, a body frame with an opening, a toner cartridge which is attachable to and detachable from the rotary through the opening, which is movable to an attached position and a retracted position, a moving device configured to move the toner cartridge from the attached position to the retracted position, and an opening/closing member provided to be movable between a closed position and an open position. The opening/closing member is configured to move from the closed position to the open position in an interconnected manner with movement of the toner cartridge from the attached position to the retracted position by the moving device.
    Type: Application
    Filed: November 7, 2023
    Publication date: May 9, 2024
    Inventors: Jumpei Nitta, Tomoya Tateishi, Osamu Sasaoka, Kohei Koguchi, Shuma Hiasa
  • Publication number: 20240152091
    Abstract: An image forming apparatus includes a developing device including a developing roller and a storage frame including a storage portion, a body frame with an opening, a toner cartridge which is configured to store the toner, which is attachable to and detachable from the developing device through the opening, which is movable to an attached position and a retracted position where the toner cartridge is retracted from the attached position, with respect to the storage frame, and which is configured to supply the toner to the storage portion in a state in which the toner cartridge is at the attached position, a moving device configured to move the toner cartridge from the attached position to the retracted position and move the toner cartridge from the retracted position to the attached position, and a driving device including a drive source and configured to drive the moving device.
    Type: Application
    Filed: November 7, 2023
    Publication date: May 9, 2024
    Inventors: Jumpei Nitta, Tomoya Tateishi, Osamu Sasaoka, Kohei Koguchi, Shuma Hiasa
  • Publication number: 20240019804
    Abstract: An image forming apparatus includes an image bearing member, a developer bearing member, a discharge unit, a stacking tray including a stacking surface on which the recording material is stacked, a replenishment port, a cover capable of moving between a closed position where the cover covers the replenishment port and constitutes at least part of the stacking surface and an open position where the cover exposes the replenishment port, and an information display unit for displaying information about a procedure for replenishing the developing container with the developer from the replenishment container.
    Type: Application
    Filed: September 7, 2023
    Publication date: January 18, 2024
    Inventors: Katsuhiko Oba, Kohei Koguchi, Isao Koishi
  • Publication number: 20240004339
    Abstract: An image forming apparatus configured to form an image on a sheet, the image forming apparatus includes an apparatus body, and a detachable unit. The detachable unit includes a first positioned portion and a second positioned portion. The apparatus body includes a frame member having a first positioning portion and a second positioning portion which respectively engage with the first positioned and second positioned portion, so that the detachable unit is positioned with respect to frame member in the attaching direction and the first direction. The second positioning portion is arranged closer to a center portion of the detachable unit in the second direction than the first positioning portion.
    Type: Application
    Filed: September 18, 2023
    Publication date: January 4, 2024
    Inventors: Kei HAYASHIDA, Kohei KOGUCHI
  • Patent number: 11852999
    Abstract: An image forming apparatus includes a first metal plate provided with a through hole; a second metal plate provided opposed to the first plate; a third metal plate provided between the first plate and the second plate; and a fixing member fixing the first plate and the third metal plate to each other. The fixing member has a first surface and a second surface extending in a direction crossing the first surface. The third metal plate extends outward in a direction in which the first plate and the second plate opposes to each other, and the third metal plate is provided with a first projection penetrating the through hole, and wherein the first projection is fixed on the first surface. The first plate is fixed on the second surface of the fixing member.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: December 26, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoichiro Iizuka, Kohei Koguchi, Masatoshi Yamashita
  • Patent number: 11815844
    Abstract: An image forming apparatus configured to form an image on a sheet, the image forming apparatus includes an apparatus body, and a detachable unit. The detachable unit includes a first positioned portion and a second positioned portion. The apparatus body includes a frame member having a first positioning portion and a second positioning portion which respectively engage with the first positioned and second positioned portion, so that the detachable unit is positioned with respect to frame member in the attaching direction and the first direction. The second positioning portion is arranged closer to a center portion of the detachable unit in the second direction than the first positioning portion.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: November 14, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kei Hayashida, Kohei Koguchi
  • Patent number: 11796947
    Abstract: An image forming apparatus includes an image bearing member, a developer bearing member, a discharge unit, a stacking tray including a stacking surface on which the recording material is stacked, a replenishment port, a cover capable of moving between a closed position where the cover covers the replenishment port and constitutes at least part of the stacking surface and an open position where the cover exposes the replenishment port, and an information display unit for displaying information about a procedure for replenishing the developing container with the developer from the replenishment container.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: October 24, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuhiko Oba, Kohei Koguchi, Isao Koishi
  • Publication number: 20230324843
    Abstract: An image forming apparatus according to the present invention includes an optical box, a housing having a discharge opening, a cover provided downstream of the optical box in a discharge direction in which a recording material is discharged through the discharge opening and forming a part of the housing, and a circuit board, wherein the circuit board includes a plurality of electronic components and a wiring board configured to electrically connect the plurality of electronic components, the circuit board is disposed in such a direction that a surface of the wiring board on which the plurality of electronic components is mounted intersects the discharge direction, and the wiring board is provided between the cover and the optical box in the discharge direction, and wherein, when viewed in a vertical direction, the optical box and the plurality of electronic components partially overlap each other.
    Type: Application
    Filed: June 13, 2023
    Publication date: October 12, 2023
    Inventors: Yuichiro Okawa, Kohei Koguchi
  • Patent number: 11762322
    Abstract: An image forming apparatus according to the present invention includes an optical box, a housing having a discharge opening, a cover provided downstream of the optical box in a discharge direction in which a recording material is discharged through the discharge opening and forming a part of the housing, and a circuit board, wherein the circuit board includes a plurality of electronic components and a wiring board configured to electrically connect the plurality of electronic components, the circuit board is disposed in such a direction that a surface of the wiring board on which the plurality of electronic components is mounted intersects the discharge direction, and the wiring board is provided between the cover and the optical box in the discharge direction, and wherein, when viewed in a vertical direction, the optical box and the plurality of electronic components partially overlap each other.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: September 19, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuichiro Okawa, Kohei Koguchi
  • Patent number: 11754946
    Abstract: An image forming apparatus includes an attachment portion to which to attach a supply container for supplying a developer, a housing including a discharge portion for discharging a sheet in a discharging direction, a discharge tray including a first stack portion for stacking the sheet thereon, in which the first stack portion is configured to be movable between a closed position and an opened position, a top portion fixed to the housing, and a display portion and an operation portion arranged on the top portion. The top portion includes a first region, a first extension portion, and a second extension portion. As viewed along a vertical direction, the first extension portion and the second extension portion extend from the first region in the discharging direction, and at least a part of the first stack portion is located between the first extension portion and the second extension portion.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: September 12, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kohei Koguchi, Isao Koishi, Katsuhiko Oba
  • Patent number: 11720045
    Abstract: An image forming apparatus according to the present invention includes an optical box, a housing having a discharge opening, a cover provided downstream of the optical box in a discharge direction in which a recording material is discharged through the discharge opening and forming a part of the housing, and a circuit board, wherein the circuit board includes a plurality of electronic components and a wiring board configured to electrically connect the plurality of electronic components, the circuit board is disposed in such a direction that a surface of the wiring board on which the plurality of electronic components is mounted intersects the discharge direction, and the wiring board is provided between the cover and the optical box in the discharge direction, and wherein, when viewed in a vertical direction, the optical box and the plurality of electronic components partially overlap each other.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: August 8, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuichiro Okawa, Kohei Koguchi
  • Publication number: 20230168624
    Abstract: An image forming apparatus includes an image bearing member, a frame member including a support surface and made of metal, an exposure unit disposed such that an emission direction in which the light is emitted to the image bearing member is inclined with respect to the support surface, a support member made of metal and configured to support the exposure unit that is in an inclined posture with respect to the support surface, and a positioning member made of resin and configured to be in contact with the exposure unit and position the exposure unit. The support surface of the frame member is in contact with at least one of the support member or the positioning member, and wherein the exposure unit is configured to be attached to the frame member via the support member and the positioning member.
    Type: Application
    Filed: November 9, 2022
    Publication date: June 1, 2023
    Inventors: Kei Hayashida, Kohei Koguchi, Masaki Tanaka
  • Publication number: 20230023209
    Abstract: An image forming apparatus includes a first metal plate provided with a through hole; a second metal plate provided opposed to the first plate; a third metal plate provided between the first plate and the second plate; and a fixing member fixing the first plate and the third metal plate to each other. The fixing member has a first surface and a second surface extending in a direction crossing the first surface. The third metal plate extends outward in a direction in which the first plate and the second plate opposes to each other, and the third metal plate is provided with a first projection penetrating the through hole, and wherein the first projection is fixed on the first surface. The first plate is fixed on the second surface of the fixing member.
    Type: Application
    Filed: October 4, 2022
    Publication date: January 26, 2023
    Inventors: Yoichiro IIZUKA, Kohei KOGUCHI, Masatoshi YAMASHITA
  • Publication number: 20230019464
    Abstract: An image forming apparatus includes an attachment portion to which to attach a supply container for supplying a developer, a housing including a discharge portion for discharging a sheet in a discharging direction, a discharge tray including a first stack portion for stacking the sheet thereon, in which the first stack portion is configured to be movable between a closed position and an opened position, a top portion fixed to the housing, and a display portion and an operation portion arranged on the top portion. The top portion includes a first region, a first extension portion, and a second extension portion. As viewed along a vertical direction, the first extension portion and the second extension portion extend from the first region in the discharging direction, and at least a part of the first stack portion is located between the first extension portion and the second extension portion.
    Type: Application
    Filed: September 21, 2022
    Publication date: January 19, 2023
    Inventors: Kohei Koguchi, Isao Koishi, Katsuhiko Oba
  • Publication number: 20220382200
    Abstract: An image forming apparatus includes an image bearing member, a developer bearing member, a discharge unit, a stacking tray including a stacking surface on which the recording material is stacked, a replenishment port, a cover capable of moving between a closed position where the cover covers the replenishment port and constitutes at least part of the stacking surface and an open position where the cover exposes the replenishment port, and an information display unit for displaying information about a procedure for replenishing the developing container with the developer from the replenishment container.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 1, 2022
    Inventors: Katsuhiko Oba, Kohei Koguchi, Isao Koishi
  • Publication number: 20220373962
    Abstract: An image forming apparatus configured to form an image on a sheet, the image forming apparatus includes an apparatus body, and a detachable unit. The detachable unit includes a first positioned portion and a second positioned portion. The apparatus body includes a frame member having a first positioning portion and a second positioning portion which respectively engage with the first positioned and second positioned portion, so that the detachable unit is positioned with respect to frame member in the attaching direction and the first direction. The second positioning portion is arranged closer to a center portion of the detachable unit in the second direction than the first positioning portion.
    Type: Application
    Filed: May 17, 2022
    Publication date: November 24, 2022
    Inventors: Kei Hayashida, Kohei Koguchi
  • Patent number: 11493875
    Abstract: An image forming apparatus includes a first metal plate provided with a through hole; a second metal plate provided opposed to the first plate; a third metal plate provided between the first plate and the second plate; and a fixing member fixing the first plate and the third metal plate to each other. The fixing member has a first surface and a second surface extending in a direction crossing the first surface. The third metal plate extends outward in a direction in which the first plate and the second plate opposes to each other, and the third metal plate is provided with a first projection penetrating the through hole, and wherein the first projection is fixed on the first surface. The first plate is fixed on the second surface of the fixing member.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: November 8, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoichiro Iizuka, Kohei Koguchi, Masatoshi Yamashita
  • Patent number: 11474452
    Abstract: An image forming apparatus includes an attachment portion to which to attach a supply container for supplying a developer, a housing including a discharge portion for discharging a sheet in a discharging direction, a discharge tray including a first stack portion for stacking the sheet thereon, in which the first stack portion is configured to be movable between a closed position and an opened position, a top portion fixed to the housing, and a display portion and an operation portion arranged on the top portion. The top portion includes a first region, a first extension portion, and a second extension portion. As viewed along a vertical direction, the first extension portion and the second extension portion extend from the first region in the discharging direction, and at least a part of the first stack portion is located between the first extension portion and the second extension portion.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: October 18, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kohei Koguchi, Isao Koishi, Katsuhiko Oba