Patents by Inventor Kouhei Tokuda

Kouhei Tokuda 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: 20230356536
    Abstract: A printing apparatus includes a plurality of set units to set rolled print media, a conveyance unit to convey the print media, a printing unit, a detection unit, and display units. The printing unit prints an image on the print media conveyed by the conveyance unit. The detection unit detects whether any one of the print media is fed to a predetermined printable position at which printing is performable by the printing unit. Each display unit is provided on a different one of the plurality of set units and configured to indicate whether a print medium set in a corresponding set unit is being fed. When the printing unit performs printing on the print medium, each display unit indicates whether the print medium set in the corresponding set unit is being fed in accordance with a result of detection performed by the detection unit.
    Type: Application
    Filed: July 18, 2023
    Publication date: November 9, 2023
    Inventors: Kouhei Tokuda, Toshinobu Tokita, Hideyuki Nozawa, Yasuyuki Asai, Ryutaro Taira
  • Patent number: 11745521
    Abstract: A printing apparatus includes a plurality of set units to set rolled print media, a conveyance unit to convey the print media, a printing unit, a detection unit, and display units. The printing unit prints an image on the print media conveyed by the conveyance unit. The detection unit detects whether any one of the print media is fed to a predetermined printable position at which printing is performable by the printing unit. Each display unit is provided on a different one of the plurality of set units and configured to indicate whether a print medium set in a corresponding set unit is being fed. When the printing unit performs printing on the print medium, each display unit indicates whether the print medium set in the corresponding set unit is being fed in accordance with a result of detection performed by the detection unit.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: September 5, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kouhei Tokuda, Toshinobu Tokita, Hideyuki Nozawa, Yasuyuki Asai, Ryutaro Taira
  • Patent number: 11667140
    Abstract: A technique advantageous to stably holding a reading apparatus relative to a printing apparatus is provided. A printing system includes a recording apparatus and a reading apparatus. The recording apparatus includes a housing that incorporates a printing unit that performs printing on a recording medium. The housing includes a front surface portion having a discharge port for discharging the recording medium on which printing is performed, a back surface portion facing the front surface portion, and a side surface portion connecting the front surface portion with the back surface portion. The printing system includes a holding unit connected to the housing at least at one end, and holding the reading apparatus above the housing. The holding unit includes a first fixing member for fixing to the back surface portion, and a second fixing member for fixing to the side surface portion.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: June 6, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kouhei Tokuda, Hideyuki Nozawa
  • Patent number: 11667138
    Abstract: An apparatus includes a printing unit, a conveyance unit including first and second rotating members that nip and convey the sheet, and configured to hold the sheet by temporarily stopping the conveyance before completion of discharge of the sheet, a detection unit configured to detect a rotation of the first rotating member, a determination unit configured to determine whether the sheet has been pulled in a discharge direction based on a detection result of the detection unit in a case where the conveyance unit holds the sheet, and a control unit configured to, if the determination unit determines that the sheet has been pulled in the discharge direction, cause the conveyance unit to perform a discharging process of the sheet.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: June 6, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Daigo Kuronuma, Toshiaki Yamaguchi, Takuya Suto, Toshiro Sugiyama, Kouhei Tokuda, Kenji Shimamura, Ryo Harigae, Ryosuke Murata
  • Publication number: 20230166524
    Abstract: A liquid discharge apparatus includes a container, a passage, first and second cover portions, and a valve unit. Liquid is injected into the container through an injection portion and supplied from the container through the passage to the liquid discharge head. The first cover portion pivots on a first axis as a center between an open position to allow access to the injection portion and a close position to not allow access to the injection portion. The second cover portion pivots on a second axis intersecting the first axis and as a center between an open position of the second cover portion to expose the first cover portion and a close position of the second cover portion to cover the first cover portion. The valve unit switches to an open state to open the passage when the second cover portion pivots from the open position to the close position.
    Type: Application
    Filed: November 21, 2022
    Publication date: June 1, 2023
    Inventors: Masahito Yoshida, Kouhei Tokuda
  • Publication number: 20230116020
    Abstract: A printing apparatus includes a conveyance unit including a pair of rotation members that nip a roll sheet, and configured to convey the sheet by rotation of the pair of rotation members, a printing unit, and a control unit configured to, upon executing a new print job, cause the conveyance unit to perform a preparatory operation in which the sheet is conveyed in a forward direction and then conveyed in a reverse direction and stopped. If a predetermined condition is met after completion of a previous print job, the control unit causes the conveyance unit to perform the preparatory operation, and if the predetermined condition is not met after completion of a previous print job, the control unit does not cause the conveyance unit to perform the preparatory operation.
    Type: Application
    Filed: December 13, 2022
    Publication date: April 13, 2023
    Inventors: Takuya Suto, Toshiro Sugiyama, Ryosuke Murata, Daigo Kuronuma, Kenji Shimamura, Ryo Harigae, Toshiaki Yamaguchi, Kouhei Tokuda
  • Patent number: 11560000
    Abstract: A printing apparatus includes a conveyance unit including a pair of rotation members that nip a roll sheet, and configured to convey the sheet by rotation of the pair of rotation members, a printing unit, and a control unit configured to, upon executing a new print job, cause the conveyance unit to perform a preparatory operation in which the sheet is conveyed in a forward direction and then conveyed in a reverse direction and stopped. If a predetermined condition is met after completion of a previous print job, the control unit causes the conveyance unit to perform the preparatory operation, and if the predetermined condition is not met after completion of a previous print job, the control unit does not cause the conveyance unit to perform the preparatory operation.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: January 24, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takuya Suto, Toshiro Sugiyama, Ryosuke Murata, Daigo Kuronuma, Kenji Shimamura, Ryo Harigae, Toshiaki Yamaguchi, Kouhei Tokuda
  • Publication number: 20220063306
    Abstract: A printing apparatus includes a plurality of set units to set rolled print media, a conveyance unit to convey the print media, a printing unit, a detection unit, and display units. The printing unit prints an image on the print media conveyed by the conveyance unit. The detection unit detects whether any one of the print media is fed to a predetermined printable position at which printing is performable by the printing unit. Each display unit is provided on a different one of the plurality of set units and configured to indicate whether a print medium set in a corresponding set unit is being fed. When the printing unit performs printing on the print medium, each display unit indicates whether the print medium set in the corresponding set unit is being fed in accordance with a result of detection performed by the detection unit.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 3, 2022
    Inventors: Kouhei Tokuda, Toshinobu Tokita, Hideyuki Nozawa, Yasuyuki Asai, Ryutaro Taira
  • Publication number: 20210276348
    Abstract: A printing apparatus includes a conveyance unit including a pair of rotation members that nip a roll sheet, and configured to convey the sheet by rotation of the pair of rotation members, a printing unit, and a control unit configured to, upon executing a new print job, cause the conveyance unit to perform a preparatory operation in which the sheet is conveyed in a forward direction and then conveyed in a reverse direction and stopped. If a predetermined condition is met after completion of a previous print job, the control unit causes the conveyance unit to perform the preparatory operation, and if the predetermined condition is not met after completion of a previous print job, the control unit does not cause the conveyance unit to perform the preparatory operation.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 9, 2021
    Inventors: Takuya Suto, Toshiro Sugiyama, Ryosuke Murata, Daigo Kuronuma, Kenji Shimamura, Ryo Harigae, Toshiaki Yamaguchi, Kouhei Tokuda
  • Publication number: 20210276350
    Abstract: A printing apparatus comprises: a conveyance unit configured to convey a sheet to a printing unit configured to perform printing; a control unit configured to cause the conveyance unit to hold the sheet onto which printing was performed by the printing unit; and a receiving unit configured to receive an ejection instruction for instructing to eject the sheet, wherein the control unit, in a case where the receiving unit receives the ejection instruction, controls the conveyance unit to eject the sheet to outside of the apparatus after a predetermined time has elapsed.
    Type: Application
    Filed: March 2, 2021
    Publication date: September 9, 2021
    Inventors: Ryosuke Murata, Takuya Suto, Toshiro Sugiyama, Daigo Kuronuma, Kenji Shimamura, Ryo Harigae, Toshiaki Yamaguchi, Kouhei Tokuda
  • Publication number: 20210276349
    Abstract: An apparatus includes a printing unit, a conveyance unit including first and second rotating members that nip and convey the sheet, and configured to hold the sheet by temporarily stopping the conveyance before completion of discharge of the sheet, a detection unit configured to detect a rotation of the first rotating member, a determination unit configured to determine whether the sheet has been pulled in a discharge direction based on a detection result of the detection unit in a case where the conveyance unit holds the sheet, and a control unit configured to, if the determination unit determines that the sheet has been pulled in the discharge direction, cause the conveyance unit to perform a discharging process of the sheet.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 9, 2021
    Inventors: Daigo Kuronuma, Toshiaki Yamaguchi, Takuya Suto, Toshiro Sugiyama, Kouhei Tokuda, Kenji Shimamura, Ryo Harigae, Ryosuke Murata
  • Publication number: 20200307288
    Abstract: A technique advantageous to stably holding a reading apparatus relative to a printing apparatus is provided. A printing system includes a recording apparatus and a reading apparatus. The recording apparatus includes a housing that incorporates a printing unit that performs printing on a recording medium. The housing includes a front surface portion having a discharge port for discharging the recording medium on which printing is performed, a back surface portion facing the front surface portion, and a side surface portion connecting the front surface portion with the back surface portion. The printing system includes a holding unit connected to the housing at least at one end, and holding the reading apparatus above the housing. The holding unit includes a first fixing member for fixing to the back surface portion, and a second fixing member for fixing to the side surface portion.
    Type: Application
    Filed: March 16, 2020
    Publication date: October 1, 2020
    Inventors: Kouhei Tokuda, Hideyuki Nozawa
  • Patent number: 10745225
    Abstract: A printing apparatus has a conveyance roller and a driven roller disposed upstream of a print head in the first direction, a platen facing the print head and supporting the print medium, a producing unit producing a holding force for holding the print medium at the platen. A conveyance operation includes a first conveyance operation in which the print medium is conveyed without any release from between the conveyance roller and the driven roller and a second conveyance operation in which the print medium is released from between the conveyance roller and the driven roller. A rotation amount of the conveyance roller during the second conveyance operation is increased than that during the first conveyance operation.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: August 18, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takakazu Ohashi, Kouhei Tokuda
  • Publication number: 20190232689
    Abstract: A printing apparatus has a conveyance roller and a driven roller disposed upstream of a print head in the first direction, a platen facing the print head and supporting the print medium, a producing unit producing a holding force for holding the print medium at the platen. A conveyance operation includes a first conveyance operation in which the print medium is conveyed without any release from between the conveyance roller and the driven roller and a second conveyance operation in which the print medium is released from between the conveyance roller and the driven roller. A rotation amount of the conveyance roller during the second conveyance operation is increased than that during the first conveyance operation.
    Type: Application
    Filed: January 8, 2019
    Publication date: August 1, 2019
    Inventors: Takakazu Ohashi, Kouhei Tokuda
  • Patent number: 9981475
    Abstract: An ink supply apparatus includes a first ink tank, a second ink tank, a first flow path configured to connect the first ink tank and the second ink tank, a volume change unit disposed on the first flow path, configured to be able to change an internal volume of its own, and allow ink to flow thereinto from the first flow path when the internal volume is expanded and to flow out to the first flow path when the internal volume is reduced, a first opening and closing unit disposed between the first ink tank and the volume change unit, and a second opening and closing unit disposed between the second ink tank and the volume change unit.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: May 29, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeru Watanabe, Kouhei Tokuda, Tsutomu Obata, Hiroyuki Matsunaka, Naoaki Wada, Eiichi Adachi, Noriyuki Aoki, Toshiro Sugiyama, Ryohei Maruyama, Ryuichi Kato
  • Patent number: 9902160
    Abstract: A supply apparatus includes a holder for a liquid container, a link coupled to the holder, an operation handle rotatably coupled to the link, an engaging portion and a rotation restriction unit. The operation handle operate connection and disconnection of the liquid container to and from a supplying portion by rotation with respect to the link. The engaging portion maintains a connection state between the supplying portion and the liquid container by engaging with the operation handle. The unit can restrict rotation of the operation handle when the engaging portion and the operation handle are in a disengaged state.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: February 27, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toshiro Sugiyama, Noriyuki Aoki, Shigeru Watanabe, Tsutomu Obata, Naoaki Wada, Ryohei Maruyama, Ryuichi Kato, Kouhei Tokuda
  • Patent number: 9862191
    Abstract: Provided is a liquid holding container in which waste liquid leakage is not caused even when the container is turned upside down. For this purpose, a surface of an absorber facing the rear face of a cover part is disposed apart from the cover part so as to form a space between the cover part and the absorber of a waste liquid holding container.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: January 9, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryohei Maruyama, Noriyuki Aoki, Shigeru Watanabe, Toshiro Sugiyama, Tsutomu Obata, Naoaki Wada, Ryuichi Kato, Kouhei Tokuda
  • Patent number: 9855758
    Abstract: There is provided a print device including a wet liquid supply unit corresponding to a wider environmental range, with a simple and inexpensive configuration. Therefore, a valve that can change the volume is provided in a flow passage between an intermediate tank and a storing unit that stores liquid and that supplies the liquid to the intermediate tank.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: January 2, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tsutomu Obata, Noriyuki Aoki, Shigeru Watanabe, Toshiro Sugiyama, Naoaki Wada, Ryohei Maruyama, Ryuichi Kato, Kouhei Tokuda
  • Publication number: 20170090400
    Abstract: Provided is a liquid holding container in which waste liquid leakage is not caused even when the container is turned upside down. For this purpose, a surface of an absorber facing the rear face of a cover part is disposed apart from the cover part so as to form a space between the cover part and the absorber of a waste liquid holding container.
    Type: Application
    Filed: September 21, 2016
    Publication date: March 30, 2017
    Inventors: Ryohei Maruyama, Noriyuki Aoki, Shigeru Watanabe, Toshiro Sugiyama, Tsutomu Obata, Naoaki Wada, Ryuichi Kato, Kouhei Tokuda
  • Publication number: 20170087854
    Abstract: A supply apparatus includes a holder for a liquid container, a link coupled to the holder, an operation handle rotatably coupled to the link, an engaging portion and a rotation restriction unit. The operation handle operate connection and disconnection of the liquid container to and from a supplying portion by rotation with respect to the link. The engaging portion maintains a connection state between the supplying portion and the liquid container by engaging with the operation handle. The unit can restrict rotation of the operation handle when the engaging portion and the operation handle are in a disengaged state.
    Type: Application
    Filed: September 15, 2016
    Publication date: March 30, 2017
    Inventors: Toshiro Sugiyama, Noriyuki Aoki, Shigeru Watanabe, Tsutomu Obata, Naoaki Wada, Ryohei Maruyama, Ryuichi Kato, Kouhei Tokuda