Patents by Inventor Tetsuo Asada

Tetsuo Asada 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: 11890862
    Abstract: An image recording device is provided, having a recording unit configured to record an image on a sheet, and a tray disposed below the recording unit. The tray includes a sheet holding surface configured to hold the sheet. Additionally, the image recording device includes a sheet feeder disposed between the recording unit and the tray. The sheet feeder includes a roller for feeding the sheet from the tray. The roller is configured to move between a first roller position in which the roller contacts the sheet holding surface of the tray and a second roller position in which the roller is separated from the sheet holding surface. A return guide, disposed between the recording unit and the sheet feeder, defines a second conveying path to guide the sheet having an image recorded on one side thereof back to the feed guide. The return guide has a first opening configured to accommodate the roller of the sheet feeder when the roller is in the second roller position.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: February 6, 2024
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tetsuo Asada, Hirotaka Aoki, Satoru Nakakita, Shota Iijima, Kenji Samoto, Yuji Koga
  • 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
  • Patent number: 11644120
    Abstract: A fluidic device includes a casing in which a fluid passage is disposed and which has an outer surface including a detection target surface (bottom surface) that is to contact a detection part of a sensor so that at least one of a temperature and a vibration of the fluidic device is detected; and a plug detachably disposed on the casing and configured to cover the detection target surface (bottom surface).
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: May 9, 2023
    Assignee: TLV CO., LTD.
    Inventor: Tetsuo Asada
  • 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
  • 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
  • Publication number: 20220040995
    Abstract: An image recording device is provided, having a recording unit configured to record an image on a sheet, and a tray disposed below the recording unit. The tray includes a sheet holding surface configured to hold the sheet. Additionally, the image recording device includes a sheet feeder disposed between the recording unit and the tray. The sheet feeder includes a roller for feeding the sheet from the tray. The roller is configured to move between a first roller position in which the roller contacts the sheet holding surface of the tray and a second roller position in which the roller is separated from the sheet holding surface. A return guide, disposed between the recording unit and the sheet feeder, defines a second conveying path to guide the sheet having an image recorded on one side thereof back to the feed guide. The return guide has a first opening configured to accommodate the roller of the sheet feeder when the roller is in the second roller position.
    Type: Application
    Filed: July 20, 2021
    Publication date: February 10, 2022
    Inventors: Tetsuo ASADA, Hirotaka AOKI, Satoru NAKAKITA, Shota IIJIMA, Kenji SAMOTO, Yuji KOGA
  • 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
  • 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: 11148439
    Abstract: A first feeder contacts a first surface of a first sheet held in a first tray and feeds the first sheet toward a recording unit. A second feeder contacts a first surface of a second sheet held in a second tray and feeds the second sheet toward the recording unit. An inner member is disposed above a standing plate. An outer member comprises an upstream portion opposing the standing plate, and a downstream portion opposing the inner member. The inner member guides the first surface of the first sheet and the first surface of the second sheet. The standing plate guides the first surface of the second sheet. The upstream portion of the outer member guides a second surface of the second sheet, and the downstream portion guides a second surface of the first sheet and the second surface of the second sheet. The standing plate moves relative to the outer member.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: October 19, 2021
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tetsuo Asada, Kensuke Hirate, Yoshiyuki Washino
  • Patent number: 11077678
    Abstract: An image recording device is provided, having a recording unit configured to record an image on a sheet, and a tray disposed below the recording unit. The tray includes a sheet holding surface configured to hold the sheet. Additionally, the image recording device includes a sheet feeder disposed between the recording unit and the tray. The sheet feeder includes a roller for feeding the sheet from the tray. The roller is configured to move between a first roller position in which the roller contacts the sheet holding surface of the tray and a second roller position in which the roller is separated from the sheet holding surface. A return guide, disposed between the recording unit and the sheet feeder, defines a second conveying path to guide the sheet having an image recorded on one side thereof back to the feed guide. The return guide has a first opening configured to accommodate the roller of the sheet feeder when the roller is in the second roller position.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: August 3, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tetsuo Asada, Hirotaka Aoki, Satoru Nakakita, Shota Iijima, Kenji Samoto, Yuji Koga
  • Patent number: 11065891
    Abstract: An image reading device includes a tray unit, a recording unit disposed above the tray unit, an outer guide defining a curved path extending from the tray unit to the recording unit, a sheet feeder configured to feed a sheet from the tray unit to the curved path, and a return guide disposed between the recording unit and the tray unit. The return guide pivots about a shaft and guides the sheet having an image recorded thereon back to the curved path. The tray unit includes at least one supporting portion. The return guide includes at least one supported portion. The at least one supporting portion of the tray unit engages the at least one supported portion of the return guide such that the return guide takes a guiding position in which the return guide defines a return path extending to the curved path.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: July 20, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tetsuo Asada, Hirotaka Aoki, Satoru Nakakita, Shota Iijima
  • 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: 20200398591
    Abstract: An image reading device includes a tray unit, a recording unit disposed above the tray unit, an outer guide defining a curved path extending from the tray unit to the recording unit, a sheet feeder configured to feed a sheet from the tray unit to the curved path, and a return guide disposed between the recording unit and the tray unit. The return guide pivots about a shaft and guides the sheet having an image recorded thereon back to the curved path. The tray unit includes at least one supporting portion. The return guide includes at least one supported portion. The at least one supporting portion of the tray unit engages the at least one supported portion of the return guide such that the return guide takes a guiding position in which the return guide defines a return path extending to the curved path.
    Type: Application
    Filed: June 1, 2020
    Publication date: December 24, 2020
    Inventors: Tetsuo ASADA, Hirotaka AOKI, Satoru NAKAKITA, Shota IIJIMA
  • Publication number: 20200331277
    Abstract: A first feeder contacts a first surface of a first sheet held in a first tray and feeds the first sheet toward a recording unit. A second feeder contacts a first surface of a second sheet held in a second tray and feeds the second sheet toward the recording unit. An inner member is disposed above a standing plate. An outer member comprises an upstream portion opposing the standing plate, and a downstream portion opposing the inner member. The inner member guides the first surface of the first sheet and the first surface of the second sheet. The standing plate guides the first surface of the second sheet. The upstream portion of the outer member guides a second surface of the second sheet, and the downstream portion guides a second surface of the first sheet and the second surface of the second sheet. The standing plate moves relative to the outer member.
    Type: Application
    Filed: March 5, 2020
    Publication date: October 22, 2020
    Inventors: Tetsuo ASADA, Kensuke HIRATE, Yoshiyuki WASHINO
  • 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
  • Publication number: 20200299085
    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: Application
    Filed: March 17, 2020
    Publication date: September 24, 2020
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tetsuo ASADA, Asami HASHIMOTO, Gakuro KANAZAWA, Yoichiro NISHIMURA
  • Publication number: 20200172355
    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: Application
    Filed: November 19, 2019
    Publication date: June 4, 2020
    Inventors: Tetsuo ASADA, Yoichiro NISHIMURA, Asami HASHIMOTO, Gakuro KANAZAWA
  • Publication number: 20200171859
    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: Application
    Filed: November 18, 2019
    Publication date: June 4, 2020
    Inventors: Tetsuo ASADA, Yoichiro NISHIMURA, Asami HASHIMOTO, Gakuro KANAZAWA
  • Patent number: 10668746
    Abstract: An image reading device includes a tray unit, a recording unit disposed above the tray unit, an outer guide defining a curved path extending from the tray unit to the recording unit, a sheet feeder configured to feed a sheet from the tray unit to the curved path, and a return guide disposed between the recording unit and the tray unit. The return guide pivots about a shaft and guides the sheet having an image recorded thereon back to the curved path. The tray unit includes at least one supporting portion. The return guide includes at least one supported portion. The at least one supporting portion of the tray unit engages the at least one supported portion of the return guide such that the return guide takes a guiding position in which the return guide defines a return path extending to the curved path.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: June 2, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tetsuo Asada, Hirotaka Aoki, Satoru Nakakita, Shota Iijima
  • Publication number: 20200108634
    Abstract: An image recording device is provided, having a recording unit configured to record an image on a sheet, and a tray disposed below the recording unit. The tray includes a sheet holding surface configured to hold the sheet. Additionally, the image recording device includes a sheet feeder disposed between the recording unit and the tray. The sheet feeder includes a roller for feeding the sheet from the tray. The roller is configured to move between a first roller position in which the roller contacts the sheet holding surface of the tray and a second roller position in which the roller is separated from the sheet holding surface. A return guide, disposed between the recording unit and the sheet feeder, defines a second conveying path to guide the sheet having an image recorded on one side thereof back to the feed guide. The return guide has a first opening configured to accommodate the roller of the sheet feeder when the roller is in the second roller position.
    Type: Application
    Filed: August 19, 2019
    Publication date: April 9, 2020
    Inventors: Tetsuo ASADA, Hirotaka AOKI, Satoru NAKAKITA, Shota IIJIMA, Kenji SAMOTO, Yuji KOGA