Patents by Inventor Kouyou Tamura

Kouyou Tamura 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).

  • Patent number: 11643292
    Abstract: A sheet feeding device includes a sheet feeding portion, a side end regulating portion, a feeding portion, first and second feeding roller pairs, an abutment member, an obliquely feeding roller pair, and first and second contact-and-separation mechanisms. Feeding of a long sheet is stopped after the sheet is fed to an upstream side of the second feeding roller pair by the feeding portion, and then is resumed in a state in which the first feeding roller pair is changed from a separated state to a feedable state and in a state in which the obliquely feeding roller pair is put in a separated state, and then the sheet is fed to the second feeding roller pair. A short sheet fed by the first feeding roller pair is obliquely fed by the obliquely feeding roller pair and then is fed to the second feeding roller pair.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: May 9, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Nakagawa, Isao Kannari, Hiroshi Saito, Keitaro Taoka, Hajime Sekiguchi, Kouyou Tamura, So Matsumoto
  • Patent number: 11487234
    Abstract: A sheet accommodating apparatus includes an apparatus body, a first cassette to be drawn out in a draw-out direction with respect to the apparatus body, a second cassette disposed adjacent to the first cassette in a vertical direction, a holder member attached to the apparatus body, and a first light emitting member and a second light emitting member that are supported by the holder member. The first cassette includes a first accommodating container and a first cover. The second cassette includes a second accommodating container and a second cover. The first cover has a first hole in a position opposing the first light emitting member such that the light emitted from the first light emitting member passes therethrough. The second cover has a second hole provided in a position opposing the second light emitting member such that the light emitted from the second light emitting member passes therethrough.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: November 1, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Keitaro Taoka, Misaki Shiozawa, Hajime Sekiguchi, Isao Kannari, Hiroyuki Nakagawa, Kouyou Tamura
  • Patent number: 11360425
    Abstract: An image forming apparatus includes a cassette, an image forming unit configured to form an image on a sheet fed from the cassette a set position, a guide rail configured to draw out the cassette from the set position, and a movable stopper unit that regulates a movement of the cassette in a draw-out direction by abutting with the cassette while the cassette is drawn out from the set position along the guide rail. The movable stopper unit includes a regulating portion movable between a regulating position where the regulating portion regulates a movement of the cassette within a moving trajectory of the cassette in moving in the draw-out direction and a retracting position where the regulating portion is located outside of the moving trajectory and does not regulate the movement of the cassette, and an urging portion configured to urge the regulating portion to the regulating position.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: June 14, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Isao Kannari, Hajime Sekiguchi, Keitaro Taoka, Hiroyuki Nakagawa, Misaki Shiozawa, Kouyou Tamura
  • Publication number: 20210382429
    Abstract: A sheet accommodating apparatus includes a first cassette provided so as to be drawn out in a draw-out direction, a second cassette disposed adjacent to the first cassette in a vertical direction, one holder member, and a first light emitting member and a second light emitting member that are supported by the holder member. The first cassette includes a first accommodating container and a first cover. The second cassette includes a second accommodating container and a second cover. The first cover has a first hole provided in a position opposing the first light emitting member in the draw-out direction such that the light emitted from the first light emitting member passes therethrough. The second cover has a second hole provided in a position opposing the second light emitting member in the draw-out direction such that the light emitted from the second light emitting member passes therethrough.
    Type: Application
    Filed: May 14, 2021
    Publication date: December 9, 2021
    Inventors: Keitaro Taoka, Misaki Shiozawa, Hajime Sekiguchi, Isao Kannari, Hiroyuki Nakagawa, Kouyou Tamura
  • Publication number: 20210373485
    Abstract: An image forming apparatus includes a cassette, an image forming unit configured to form an image on a sheet fed from the cassette a set position, a guide rail configured to draw out the cassette from the set position, and a movable stopper unit that regulates a movement of the cassette in a draw-out direction by abutting with the cassette while the cassette is drawn out from the set position along the guide rail. The movable stopper unit includes a regulating portion movable between a regulating position where the regulating portion regulates a movement of the cassette within a moving trajectory of the cassette in moving in the draw-out direction and a retracting position where the regulating portion is located outside of the moving trajectory and does not regulate the movement of the cassette, and an urging portion configured to urge the regulating portion to the regulating position.
    Type: Application
    Filed: May 12, 2021
    Publication date: December 2, 2021
    Inventors: Isao KANNARI, Hajime SEKIGUCHI, Keitaro TAOKA, Hiroyuki NAKAGAWA, Misaki SHIOZAWA, Kouyou TAMURA
  • Publication number: 20210300702
    Abstract: A sheet feeding device includes a sheet feeding portion, a side end regulating portion, a feeding portion, first and second feeding roller pairs, an abutment member, an obliquely feeding roller pair, and first and second contact-and-separation mechanisms. Feeding of a long sheet is stopped after the sheet is fed to an upstream side of the second feeding roller pair by the feeding portion, and then is resumed in a state in which the first feeding roller pair is changed from a separated state to a feedable state and in a state in which the obliquely feeding roller pair is put in a separated state, and then the sheet is fed to the second feeding roller pair. A short sheet fed by the first feeding roller pair is obliquely fed by the obliquely feeding roller pair and then is fed to the second feeding roller pair.
    Type: Application
    Filed: March 12, 2021
    Publication date: September 30, 2021
    Inventors: Hiroyuki Nakagawa, Isao Kannari, HIroshi Saito, Keitaro Taoka, Hajime Sekiguchi, Kouyou Tamura, So Matsumoto
  • Patent number: 11059686
    Abstract: An image forming apparatus includes a side regulating plate provided in a sheet feeding cassette and a regulating surface to regulate an end position of a sheet stored in the sheet feeding cassette. A first arm connected with a first connector of the side regulating plate and a second arm connected with a second connector of the side regulating plate pivot on an axis extending in the gravity direction, wherein the second connector is different from the first connector in terms of a feeding direction. A first fixing part fixes the first arm to the sheet feeding cassette, and a second fixing part fixes the second arm to the sheet feeding cassette, wherein the first arm intersects with the second arm when viewed in the gravity direction when the side regulating plate is located in at least a part of a movable range of the side regulating plate.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: July 13, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kouyou Tamura, Hajime Sekiguchi, Keitaro Taoka
  • Publication number: 20200339367
    Abstract: A sheet storage apparatus includes: a storage portion configured to store a sheet and to be inserted into and drawn out of an apparatus body along a first direction; a regulation member configured to be movable in the first direction with respect to the storage portion and including a regulating surface configured to regulate an end position in the first direction of the sheet stored in the storage portion; a first arm and a second arm each pivotably connected with the regulation member; and a fixing portion configured to fix the first and second arms to the storage portion. A position of a first connecting portion where the first arm is connected with the regulation member is different from a position of a second connecting portion where the second arm is connected with the regulation member in terms of a second direction intersecting with the first direction.
    Type: Application
    Filed: April 6, 2020
    Publication date: October 29, 2020
    Inventors: Kouyou Tamura, Hajime Sekiguchi, Keitaro Taoka