Patents by Inventor Gakuro KANAZAWA

Gakuro KANAZAWA 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: 20240124254
    Abstract: An image recording apparatus, having a conveyer including a pair of conveyer rollers, a recorder, a first sensor, and a controller, is provided. The controller, after a part of an image is recorded on a sheet-formed medium, within a period between a point before the first sensor detects an upstream end of the sheet-formed medium and a point after the first sensor detects the upstream end of the sheet-formed medium, controls the conveyer to convey the sheet-formed medium in a plurality of segmented actions, corrects a conveyance amount to convey the sheet-formed medium after the first sensor detects the upstream end of the sheet-formed medium to a third conveyance amount, which is smaller than the conveyance amount, and after the sheet-formed medium is conveyed by the third conveyance amount, controls the recorder to record another part of the image on the sheet-formed medium.
    Type: Application
    Filed: October 13, 2023
    Publication date: April 18, 2024
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Gakuro KANAZAWA
  • Patent number: 11806991
    Abstract: An image forming apparatus includes a housing, a feeding tray inserted into and pulled out from the housing, an image forming unit, and first and second guide members. The feeding tray includes a first accommodation part in which a roll body having a configuration where a sheet-shaped medium is rolled in a roll shape is accommodated and a second accommodation part in which stacked sheet-shaped media are accommodated. The first guide member guides a sheet-shaped medium to a conveying path. The second guide member guides a roll medium unrolled from the roll body to the conveying path. The second guide member is movable between a guide position for guiding the roll medium to the conveying path, and a retreat position further distant from the first guide member than the guide position and where the second guide member does not interfere with a sheet-shaped medium accommodated in the second accommodation part.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: November 7, 2023
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Masatomo Yamaguchi, Satoshi Miyase, Yuya Tatematsu, Hideaki Yoshimune, Gakuro Kanazawa
  • Publication number: 20230348218
    Abstract: An image recording apparatus includes a conveyance mechanism conveying a sheet-shaped medium in a conveyance direction, a recorder recording an image on the conveyed sheet-shaped medium, and a controller. The conveyance mechanism selectively conveys a first sheet-shaped medium accommodated in a first accommodation part, and a second sheet-shaped medium accommodated in a second accommodation part and longer than the first sheet-shaped medium in the conveyance direction. The controller causes, based on a recording command, the conveyance mechanism to convey a sheet-shaped medium from one of the first and second accommodation parts, and causes the recorder to record an image on the sheet-shaped medium.
    Type: Application
    Filed: April 26, 2023
    Publication date: November 2, 2023
    Inventors: Yushi DEURA, Taisei OKUZONO, Haruka AZECHI, Yasuhiro NAKANO, Gakuro KANAZAWA, Yuki TSUJIMURA
  • Patent number: 11760592
    Abstract: A sheet feeding device includes: an accommodating unit having a placement surface on which the stack of sheets is mounted; an inclined member having an inclined surface inclined relative to the placement surface to extend in an inclined direction and a back surface opposite the inclined surface; a sheet pick-up unit for feeding an uppermost sheet in the stack of sheets toward the inclined member; and a sheet separating member provided on the inclined surface. The sheet separating member includes a plurality of separation pieces and a support portion those made of resin. The support portion supports the separation pieces at positions closer to the back surface than to the inclined surface so that the separation pieces are movable away from the placement surface in the inclined direction and toward the back surface in a normal direction of the inclined surface independently from one another.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: September 19, 2023
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tetsuo Asada, Tadanobu Chikamoto, Gakuro Kanazawa
  • Publication number: 20230271434
    Abstract: An image recording apparatus includes a first tray, a second tray overlapping the first tray in the first direction, a first roller configured to feed first sheet media in the first tray in a second direction, a second roller configured to feed second sheet media in the second tray in the second direction, a first separating member extending in a third direction intersecting both the first direction and the second direction, a second separating member extending in the third direction, and a recording unit. The second separating member is longer than the first separating member, and the second roller is positioned at the upstream side of the second tray with respect to the first roller in the second direction in a state where no sheet media are accommodated in the first tray and the second tray.
    Type: Application
    Filed: February 24, 2023
    Publication date: August 31, 2023
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hikaru TAMURA, Kengo NODA, Gakuro KANAZAWA, Nao MORIMOTO, Yuya TATEMATSU
  • Publication number: 20230234381
    Abstract: An image recording apparatus includes a controller to calculate n that is a maximum natural number satisfying nX?X0, where X0 represents a width of a sheet medium, and X represents a longest one of respective lengths, in a width direction of the sheet medium, of a plurality of first images or a single second image based on image data. The plurality of first images are arranged along a longitudinal direction of the sheet medium. When the calculated n is equal to or more than two, the controller performs a juxtaposed image recording process to control a print engine in such a manner that two or more and n or less images, among the plurality of first images or among a plurality of divisional images into which the single second image is divided, are recorded to be arranged side by side along the width direction.
    Type: Application
    Filed: January 23, 2023
    Publication date: July 27, 2023
    Inventors: Yushi DEURA, Taisei OKUZONO, Haruka AZECHI, Yasuhiro NAKANO, Gakuro KANAZAWA, Yuki TSUJIMURA
  • Publication number: 20230202208
    Abstract: An image forming apparatus includes a controller that performs one or more times a first image forming process including performing image formation on a sheet medium, and conveying the sheet medium in a conveyance direction by rotating a first roller by a first number of rotations and rotating a second roller disposed downstream of the first roller in the conveyance direction by a second number of rotations smaller than the first number of rotations. When a count of times the first image forming process has been performed becomes a particular number of times, the controller performs a second image forming process including performing image formation on the sheet medium, and conveying the sheet medium by rotating the first roller by a third number of rotations smaller than the first number of rotations and rotating the second roller by the second number of rotations.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Inventors: Gakuro KANAZAWA, Taisei OKUZONO, Yushi DEURA, Yasuhiro NAKANO, Haruka AZECHI, Yuki TSUJIMURA
  • Publication number: 20230166499
    Abstract: A liquid ejection apparatus includes a medium container, a liquid ejection head, a mover, and a controller. The mover is configured to execute, among a first moving operation of moving a sheet-like medium and a second moving operation of moving the liquid ejection head, at least the first moving operation. The controller causes the liquid ejection head and the mover to alternately or simultaneously perform execution of the first moving operation and execution of ejection and second moving operations, and adjusts at least one selected from the group of an amount of liquid to be ejected, a time interval between the ejection operations when alternately performing execution of the first moving operation and execution of the ejection and second moving operations, and a moving speed of the medium when simultaneously executing the ejection operation and the first moving operation, according to medium information relating to curling of the medium.
    Type: Application
    Filed: November 7, 2022
    Publication date: June 1, 2023
    Inventors: Yasuhiro NAKANO, Taisei OKUZONO, Haruka AZECHI, Yushi DEURA, Gakuro KANAZAWA, Yuki TSUJIMURA
  • Patent number: 11518635
    Abstract: In a transport device, a cover defining a portion of a transport path is pivotable between a closed state and an open state. The cover is movable while in the closed state between a first position and a second position lower than the first position. An urging member urges the cover from the second position toward the first position. The cover includes a main body for guiding the sheet in the transport direction and an engagement portion engaged with a frame when the cover is at the first position to restrict pivoting of the cover from the first position to a third position at which the cover is in the open state. The engagement portion is disengaged from the frame when the cover is at the second position to allow pivoting of the cover from the second position to the third position.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: December 6, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tetsuo Asada, Asami Hashimoto, Gakuro Kanazawa, Yoichiro Nishimura
  • Publication number: 20220204297
    Abstract: A feed mechanism includes: a feed tray accommodating a roll body, a first sheet-shaped medium being rolled in a roll shape as the roll body, the feed tray including: a first accommodation portion accommodating the roll body; a pair of side walls respectively provided on both sides of the first accommodation portion in an axial direction of the roll body that is accommodated in the first accommodation portion; and a side guide disposed inside the pair of side walls.
    Type: Application
    Filed: December 28, 2021
    Publication date: June 30, 2022
    Inventors: Kengo Noda, Gakuro Kanazawa, Satoshi Miyase, Yuki Tsujimura
  • Publication number: 20220203716
    Abstract: An image forming apparatus includes: a feed tray accommodating a roll body, a first sheet-shaped medium being rolled in a roll shape as the roll body; and a feed roller configured to apply a conveying force to the first sheet-shaped medium unrolled from the roll body and to feed the first sheet-shaped medium from the feed tray. The feed tray includes: a first accommodation portion accommodating the roll body; a second accommodation portion accommodating a plurality of second sheet-shaped media stacked in a first direction; and a path member located between the first accommodation portion and the feed roller. The path member includes a partition member partitioning the second sheet-shaped medium accommodated in the second accommodation portion and the first sheet-shaped medium unrolled from the roll body in the first direction.
    Type: Application
    Filed: December 28, 2021
    Publication date: June 30, 2022
    Inventors: Kengo Noda, Gakuro Kanazawa, Satoshi Miyase
  • Publication number: 20220203710
    Abstract: An image forming apparatus includes a housing, a feeding tray inserted into and pulled out from the housing, an image forming unit, and first and second guide members. The feeding tray includes a first accommodation part in which a roll body having a configuration where a sheet-shaped medium is rolled in a roll shape is accommodated and a second accommodation part in which stacked sheet-shaped media are accommodated. The first guide member guides a sheet-shaped medium to a conveying path. The second guide member guides a roll medium unrolled from the roll body to the conveying path. The second guide member is movable between a guide position for guiding the roll medium to the conveying path, and a retreat position further distant from the first guide member than the guide position and where the second guide member does not interfere with a sheet-shaped medium accommodated in the second accommodation part.
    Type: Application
    Filed: December 28, 2021
    Publication date: June 30, 2022
    Inventors: Masatomo Yamaguchi, Satoshi Miyase, Yuya Tatematsu, Hideaki Yoshimune, Gakuro Kanazawa
  • Publication number: 20220204290
    Abstract: An image forming apparatus includes: a housing; a feed tray insertable into and removable from the housing and accommodating a sheet-shaped medium; a feed roller feeding the sheet-shaped medium; an image forming device; and a movement mechanism. The feed tray includes: a first accommodation portion accommodating a roll body, a first sheet-shaped medium being rolled in a roll shape as the roll body; and a second accommodation portion accommodating a second sheet-shaped medium which is shorter than the first sheet-shaped medium. The movement mechanism moves to a first position where the feed roller contacts the first sheet-shaped medium unrolled from the roll body accommodated in the first accommodation portion and a second position where the feed roller contacts the second sheet-shaped medium accommodated in the second accommodation portion.
    Type: Application
    Filed: December 28, 2021
    Publication date: June 30, 2022
    Inventors: Yuya Tatematsu, Masatomo Yamaguchi, Satoshi Miyase, Kengo Noda, Gakuro Kanazawa, Nao Morimoto
  • Patent number: 11352226
    Abstract: A sheet feed device includes a housing, a tray, a feed roller, an arm, a pad, and a protruding portion. The housing has a sheet conveyance path. The tray includes a bottom plate having a sheet support surface that supports a sheet. The sheet conveyance path extends upward from the sheet support surface. The feed roller rotates about a rotational axis and feeds the sheet supported on the sheet support surface in a first direction. The arm rotatably supports the feed roller. The arm swingably moves about an axis parallel to the rotational axis of the feed roller. The pad is disposed on the bottom plate. The pad has a higher friction coefficient than a friction coefficient of the sheet support surface. The protruding portion protrudes upward from the sheet support surface at a position shifted from the pad in a second direction opposite from the first direction.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: June 7, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yoichiro Nishimura, Asami Hashimoto, Gakuro Kanazawa, Tetsuo Asada
  • Patent number: 11345171
    Abstract: An image recording apparatus having a recorder, a first driving device, a second driving device, a driving-force transmission device, a sensor, a memory, and a controller to conduct a conveying process and a recording process alternately and repetitively, is provided. In the conveying process, on condition that a rotationally driven amount of the first driving device exceeded a target rotation amount, the controller conducts feedback control on the first driving device to rotate reversely. On condition that the first driving device was rotationally driven reversely under the feedback control, the controller stores a maximum value and a stopping value in the memory, determines a correction value, and determines a post-correction rotation amount based on the target rotation amount and an amount corresponding to the correction value, and in the conveying process, the controller drives the first driving device rotationally by the post-correction rotation amount.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: May 31, 2022
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yuta Arakawa, Gakuro Kanazawa
  • Publication number: 20210395028
    Abstract: A sheet feeding device includes: an accommodating unit having a placement surface on which the stack of sheets is mounted; an inclined member having an inclined surface inclined relative to the placement surface to extend in an inclined direction and a back surface opposite the inclined surface; a sheet pick-up unit for feeding an uppermost sheet in the stack of sheets toward the inclined member; and a sheet separating member provided on the inclined surface. The sheet separating member includes a plurality of separation pieces and a support portion those made of resin. The support portion supports the separation pieces at positions closer to the back surface than to the inclined surface so that the separation pieces are movable away from the placement surface in the inclined direction and toward the back surface in a normal direction of the inclined surface independently from one another.
    Type: Application
    Filed: June 7, 2021
    Publication date: December 23, 2021
    Inventors: Tetsuo ASADA, Tadanobu CHIKAMOTO, Gakuro KANAZAWA
  • Publication number: 20210379910
    Abstract: An image recording apparatus having a recorder, a first driving device, a second driving device, a driving-force transmission device, a sensor, a memory, and a controller to conduct a conveying process and a recording process alternately and repetitively, is provided. In the conveying process, on condition that a rotationally driven amount of the first driving device exceeded a target rotation amount, the controller conducts feedback control on the first driving device to rotate reversely. On condition that the first driving device was rotationally driven reversely under the feedback control, the controller stores a maximum value and a stopping value in the memory, determines a correction value, and determines a post-correction rotation amount based on the target rotation amount and an amount corresponding to the correction value, and in the conveying process, the controller drives the first driving device rotationally by the post-correction rotation amount.
    Type: Application
    Filed: March 22, 2021
    Publication date: December 9, 2021
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Yuta ARAKAWA, Gakuro KANAZAWA
  • Patent number: 11186455
    Abstract: A housing is formed with a first opening and a sheet conveyance path. A tray is inserted into the housing through the first opening in a first direction and pulled out in a second direction opposite from the first direction. The tray supports a sheet. The tray includes a bottom plate, a front plate, and a cover. The bottom plate supports a sheet. The front plate protrudes upward from an end portion of the bottom plate in the second direction. The cover is configured to move between a first position at which the cover closes a second opening and a second position at which the cover opens the second opening. The second opening is defined by an end of a top plate in the second direction and an upper end of the front plate, the top plate covering an upper side of a space that accommodates a sheet.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: November 30, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tetsuo Asada, Yoichiro Nishimura, Asami Hashimoto, Gakuro Kanazawa
  • Patent number: 10967656
    Abstract: A front plate is rotatably supported at an end portion of a tray in a pulling direction. The front plate rotatably moves between: a first position at which the front plate extends diagonally upward in the pulling direction from a first end portion at which a rotational axis is located toward a second end portion opposite the first end portion; and a second position at which the second end portion of the front plate is located at a position that is higher than the second end portion at the first position and that is shifted in an insertion direction from the second end portion at the first position. The front plate includes a grip and a surface. The surface of the front plate faces in the pulling direction and downward in a state where the front plate is located at the first position, wherein the surface surrounds the grip.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: April 6, 2021
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tetsuo Asada, Yoichiro Nishimura, Asami Hashimoto, Gakuro Kanazawa
  • Publication number: 20200307929
    Abstract: A sheet feed device includes a housing, a tray, a feed roller, an arm, a pad, and a protruding portion. The housing has a sheet conveyance path. The tray includes a bottom plate having a sheet support surface that supports a sheet. The sheet conveyance path extends upward from the sheet support surface. The feed roller rotates about a rotational axis and feeds the sheet supported on the sheet support surface in a first direction. The arm rotatably supports the feed roller. The arm swingably moves about an axis parallel to the rotational axis of the feed roller. The pad is disposed on the bottom plate. The pad has a higher friction coefficient than a friction coefficient of the sheet support surface. The protruding portion protrudes upward from the sheet support surface at a position shifted from the pad in a second direction opposite from the first direction.
    Type: Application
    Filed: January 22, 2020
    Publication date: October 1, 2020
    Inventors: Yoichiro NISHIMURA, Asami HASHIMOTO, Gakuro KANAZAWA, Tetsuo ASADA