Patents by Inventor Daigo Kuronuma

Daigo Kuronuma 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: 12605938
    Abstract: A liquid supply apparatus includes a holding member configured to detachably hold a tray, on which a flexible container provided with a supply port for supplying a liquid to a printhead, is placed, a press member configured to press the container attached to the liquid supply apparatus, a movable member configured to move the press member to a first position where the press member presses the container and a second position where a press amount of the press member for the container is less than at the first position, a first spring having one end locked on the press member and the other end locked on the holding member, and a second spring having one end locked on the press member and the other end locked on the movable member.
    Type: Grant
    Filed: April 26, 2024
    Date of Patent: April 21, 2026
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masakazu Nagashima, Akira Fujikake, Ryohei Maruyama, Hiromasa Yoneyama, Daigo Kuronuma, Hideyuki Nozawa, Tomoyuki Nagase, Yuto Nitami, Kichinosuke Hirokawa, Kenta Iimura, Naoaki Wada
  • Publication number: 20260034793
    Abstract: A liquid supply apparatus includes a support unit configured to support a liquid container having flexibility, a channel forming unit configured to be connected to the liquid container supported by the support means, and form a channel through which liquid flows from the liquid container to a supply destination, and pressing unit configured to repeat a pressing operation and a pressing reduced operation with respect to the liquid container supported by support unit.
    Type: Application
    Filed: October 6, 2025
    Publication date: February 5, 2026
    Inventors: HIROMASA YONEYAMA, DAIGO KURONUMA, HIDEYUKI NOZAWA, TOMOYUKI NAGASE, NAOAKI WADA, MASAKAZU NAGASHIMA, RYOHEI MARUYAMA, KICHINOSUKE HIROKAWA, KENTA IIMURA, AKIRA FUJIKAKE, YUTO NITAMI, KENGO NIEDA
  • Publication number: 20250375968
    Abstract: A liquid storage apparatus includes a storage unit configured to extractably store a liquid container with flexibility, a path forming unit connected to the liquid container stored in the storage unit and configured to form a path configured to flow a liquid out of the liquid container, and a pressing unit configured to press the liquid container stored in the storage unit. The pressing unit is configured to perform a stirring operation of stirring the liquid stored in the liquid container by repeating pressing of the liquid container and reducing of the pressing, and a regulating operation of maintaining a state in which the liquid container is pressed and regulating extraction of the liquid container from the storage unit.
    Type: Application
    Filed: May 29, 2025
    Publication date: December 11, 2025
    Inventors: KENTA IIMURA, HIROMASA YONEYAMA, DAIGO KURONUMA, HIDEYUKI NOZAWA, TOMOYUKI NAGASE, YUTO NITAMI, AKIRA FUJIKAKE, RYOHEI MARUYAMA, MASAKAZU NAGASHIMA, KICHINOSUKE HIROKAWA, NAOAKI WADA
  • Publication number: 20250242616
    Abstract: A carriage apparatus includes a carriage configured to reciprocally move in a predetermined direction, a first motor arranged on a side of one end of a range of movement of the carriage and configured to drive the carriage, a second motor arranged on a side of the other end of the range of movement of the carriage, configured to drive the carriage, and having the same kind of driving characteristics as driving characteristics of the first motor, a detector for detecting a position of the carriage related to the predetermined direction, and a controller for controlling driving of the first motor and the second motor by feeding back a detection result detected by the detector.
    Type: Application
    Filed: March 14, 2025
    Publication date: July 31, 2025
    Inventors: Tomohito Abe, Ryutaro Takahashi, Naoaki Wada, Daigo Kuronuma, Kenta Iimura, Ryohei Maruyama, Masakazu Nagashima, Toshiaki Yamaguchi, Takahiro Daikoku
  • Publication number: 20250121597
    Abstract: A liquid discharge apparatus includes a cap configured to cap a discharge port surface of a discharge head that discharges a liquid, an absorbent member provided in the cap so as to face the discharge port surface, a supply unit configured to supply the liquid to the absorbent member via a supply port provided in the cap, and a discharge unit configured to discharge the liquid absorbed in the absorbent member via an outlet port provided in the cap. The supply port is provided at a position higher than the outlet port. The supply port is provided at a position equal to or higher than a surface of the absorbent member in a thickness direction of the absorbent member.
    Type: Application
    Filed: October 11, 2024
    Publication date: April 17, 2025
    Inventors: DAIGO KURONUMA, TOMOYUKI NAGASE, RYOSUKE ARAKI
  • Patent number: 12220925
    Abstract: A recording apparatus includes a carriage, a tank, a flow passage, and a valve. The carriage includes a recording head that ejects liquid contained in the tank and supplied from the flow passage. The flow passage includes (i) a fixed flow passage connected to the tank without following a movement of the carriage, (ii) a first flow passage that follows the movement of the carriage and is branched off from the fixed flow passage and connected to the recording head, and (iii) a second flow passage that follows the movement of the carriage and is branched off from the fixed flow passage and connected to the recording head. The valve is provided in one of the first and second flow passages and limits a flow of liquid from the tank to the recording head and allows liquid to flow from the recording head to the tank.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: February 11, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryohei Maruyama, Kenta Iimura, Daigo Kuronuma, Takaya Sato, Tomohito Abe, Naoaki Wada, Masakazu Nagashima, Toshiaki Yamaguchi, Ryutaro Takahashi
  • Publication number: 20240359478
    Abstract: A liquid storage apparatus includes storage portions arranged in a first direction, each storage portion configured to store a liquid container for storing a liquid, status display units, each status display unit corresponding to one of the storage portions and configured to display a status of the liquid container, and type display units, each type display unit corresponding to one of the storage portions and configured to display a type of liquid assigned to the storage portion. Each storage portion and the corresponding status display unit are arranged so as to be aligned in a second direction that intersects the first direction. The storage portion and the corresponding type display unit are arranged so as to be aligned in the second direction. The type display unit is arranged on a side of the status display unit with respect to the storage portion.
    Type: Application
    Filed: April 26, 2024
    Publication date: October 31, 2024
    Inventors: HIROMASA YONEYAMA, KENTA IIMURA, RYOHEI MARUYAMA, DAIGO KURONUMA, MASAKAZU NAGASHIMA, NAOAKI WADA, KICHINOSUKE HIROKAWA, YUTO NITAMI, AKIRA FUJIKAKE, TOMOYUKI NAGASE, HIDEYUKI NOZAWA
  • Publication number: 20240359476
    Abstract: A liquid supply apparatus configured to supply a liquid to a printing unit, comprising a tray on which a flexible retaining container that retains a liquid is configured to be placed, and a tray holder configured to hold the tray so as to allow insertion of the tray in a first direction, wherein the retaining container includes a supply port configured to supply a liquid to the printing unit and an inlet coupled to the supply port and configured to take in a liquid into the retaining container, and the tray is provided with a concave shape overlapping the inlet from a viewpoint in an up-down direction in a state in which the tray is inserted in the tray holder.
    Type: Application
    Filed: April 23, 2024
    Publication date: October 31, 2024
    Inventors: NAOAKI WADA, TOMOYUKI NAGASE, MASAKAZU NAGASHIMA, HIDEYUKI NOZAWA, DAIGO KURONUMA, HIROMASA YONEYAMA, RYOHEI MARUYAMA, AKIRA FUJIKAKE, KICHINOSUKE HIROKAWA, KENTA IIMURA, YUTO NITAMI
  • Publication number: 20240359475
    Abstract: A liquid supply apparatus configured to supply a liquid to a printing unit, comprising a tray holder configured to hold a tray on which a flexible retaining container configured to retain a liquid is placed, the tray holder allowing insertion of the tray in a first direction, wherein the retaining container has a foldable gusset portion, and the tray holder is provided with a folding unit configured to fold the gusset portion in a state in which the tray is held by the tray holder.
    Type: Application
    Filed: April 23, 2024
    Publication date: October 31, 2024
    Inventors: AKIRA FUJIKAKE, HIROMASA YONEYAMA, DAIGO KURONUMA, HIDEYUKI NOZAWA, TOMOYUKI NAGASE, YUTO NITAMI, RYOHEI MARUYAMA, MASAKAZU NAGASHIMA, KICHINOSUKE HIROKAWA, KENTA IIMURA, NAOAKI WADA
  • Publication number: 20240359477
    Abstract: A liquid supply apparatus includes a holding member configured to detachably hold a tray on which a flexible container provided with a supply port for supplying a liquid to a printhead is placed; a press member configured to press the container attached to the liquid supply apparatus; a movable member configured to move the press member to a first position where the press member presses the container and a second position where a press amount of the press member for the container is smaller than at the first position; a first spring having one end locked on the press member and the other end locked on the holding member; and a second spring having one end locked on the press member and the other end locked on the movable member.
    Type: Application
    Filed: April 26, 2024
    Publication date: October 31, 2024
    Inventors: MASAKAZU NAGASHIMA, AKIRA FUJIKAKE, RYOHEI MARUYAMA, HIROMASA YONEYAMA, DAIGO KURONUMA, HIDEYUKI NOZAWA, TOMOYUKI NAGASE, YUTO NITAMI, KICHINOSUKE HIROKAWA, KENTA IIMURA, NAOAKI WADA
  • Patent number: 12077006
    Abstract: The carriage apparatus includes a carriage configured to reciprocally move in a first direction, a first motor arranged on a side of one end of a range of movement of the carriage and configured to drive the carriage, a second motor arranged on a side of the other end of the range of movement of the carriage and configured to drive the carriage, a carriage belt suspended between the first motor and the second motor, attached with the carriage, and configured to move the carriage in the first direction, and a support portion configured to mount the second motor so that the second motor is displaceable in the first direction with respect to the first motor.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: September 3, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryutaro Takahashi, Daigo Kuronuma, Naoaki Wada, Tomohito Abe, Kenta Iimura, Ryohei Maruyama, Masakazu Nagashima, Toshiaki Yamaguchi
  • Patent number: 12070952
    Abstract: A recording apparatus includes a carriage, a tank, and a flow passage. The carriage includes a liquid ejecting recording head and reciprocates in first and second directions. The flow passage supplies liquid from the tank to the recording head, and includes a fixed flow passage, a first flow passage, and a second flow passage. The fixed flow passage is connected to the tank and does not to follow a movement of the carriage. The first flow passage is branched off from the fixed flow passage, is connected to the recording head in the first direction, and follows the carriage movement. The second flow passage is branched off from the fixed flow passage, is connected to the recording head in the second direction, and follows the carriage movement. After the carriage moves in the first direction, stops, and moves in the second direction, liquid is sucked from the recording head.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: August 27, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takaya Sato, Ryohei Maruyama, Daigo Kuronuma, Kenta Iimura, Tomohito Abe, Naoaki Wada, Masakazu Nagashima, Toshiaki Yamaguchi, Ryutaro Takahashi
  • Patent number: 12030309
    Abstract: A printing apparatus includes a carriage mounted with a printing unit configured to perform printing on a print medium, a first motor used to move the carriage, a second motor used together with the first motor to move the carriage, and a control unit configured to control the first motor and the second motor. When moving the carriage, the control unit controls the first motor with a first control amount and controls the second motor with a second control amount. The first control amount and the second control amount are different from each other, and a ratio therebetween is a predetermined ratio.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: July 9, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoaki Wada, Daigo Kuronuma, Masakazu Nagashima, Tomohito Abe, Ryohei Maruyama, Kenta Iimura, Hiromasa Yoneyama, Kichinosuke Hirokawa, Akira Fujikake, Toshiaki Yamaguchi, Hideyuki Nozawa
  • Patent number: 11999175
    Abstract: A printing apparatus includes a carriage mounted with a printing unit, a belt, a first motor configured to drive the belt at one end in a widthwise direction, a second motor configured to drive the belt at the other end in the widthwise direction, and a control unit configured to control the first motor and the second motor. The control unit performs first control by driving the first motor in which the carriage moves from a state in which the carriage is stopped. In the control, the second motor is controlled from a first state in which its torque is lower than that of the first motor to a second state in which its torque is higher than that in the first state.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: June 4, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohito Abe, Kenta Iimura, Kichinosuke Hirokawa, Akira Fujikake, Toshiaki Yamaguchi, Daigo Kuronuma, Masakazu Nagashima, Naoaki Wada, Ryohei Maruyama, Hideyuki Nozawa, Hiromasa Yoneyama
  • Patent number: 11987045
    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: December 13, 2022
    Date of Patent: May 21, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takuya Suto, Toshiro Sugiyama, Ryosuke Murata, Daigo Kuronuma, Kenji Shimamura, Ryo Harigae, Toshiaki Yamaguchi, Kouhei Tokuda
  • Patent number: 11987046
    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. 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: Grant
    Filed: March 2, 2021
    Date of Patent: May 21, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryosuke Murata, Takuya Suto, Toshiro Sugiyama, Daigo Kuronuma, Kenji Shimamura, Ryo Harigae, Toshiaki Yamaguchi, Kouhei Tokuda
  • Patent number: 11945235
    Abstract: There is provided a printing apparatus which includes the following: A printhead including a plurality of nozzles that discharge ink to a print medium. A first detection unit that detects a distance between the printhead and a platen. An adjustment unit that adjusts the distance between the printhead and the platen. An acquisition unit that acquires difference information concerning a difference of a distance between the platen and each of the nozzle on an upstream side and the nozzle on a downstream side in a conveyance direction of the print medium. The adjustment unit adjusts the distance based on a detection result of the first detection unit and the difference information acquired by the acquisition unit.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: April 2, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohito Abe, Daigo Kuronuma, Ryutaro Takahashi, Naoaki Wada, Noriyuki Aoki, Ryohei Maruyama, Masakazu Nagashima, Toshiaki Yamaguchi
  • Patent number: 11926152
    Abstract: A printing apparatus includes a carriage mounted with a printing unit; a first motor configured to move the carriage in a predetermined direction; a second motor configured to move the carriage in the predetermined direction; and a control unit. The control unit executes a first mode in which, when causing the printing unit to perform printing under a first printing condition, the first motor is driven in a first direction and the second motor is driven in the first direction, and a second mode in which, when causing the printing unit to perform printing under a second printing condition different from the first printing condition, the first motor is driven in the first direction and the second motor is driven in the first direction while changing an output ratio between the first motor and the second motor.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: March 12, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryohei Maruyama, Daigo Kuronuma, Masakazu Nagashima, Tomohito Abe, Kenta Iimura, Hiromasa Yoneyama, Naoaki Wada, Kichinosuke Hirokawa, Akira Fujikake, Toshiaki Yamaguchi, 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: 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