Patents by Inventor Tomohito Abe

Tomohito Abe 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: 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
  • Publication number: 20230241905
    Abstract: A printing apparatus that includes a holding unit configured to hold a roll sheet performs supplying the sheet by rotating the roll sheet held by the holding unit; nipping and conveying the supplied sheet; performing printing on the conveyed sheet; detecting occurrence of a print medium jam of the sheet; and, if the printing apparatus has detected a print medium jam of the sheet, performing a control process of supplying the sheet in a state in which the conveying is stopped.
    Type: Application
    Filed: January 31, 2023
    Publication date: August 3, 2023
    Inventors: Yoshiaki Suzuki, Hiromasa Yoneyama, Ryohei Maruyama, Itaru Wada, Tomohito Abe, Tsutomu Obata, Noriyuki Aoki, Yasuyuki Asai
  • Patent number: 11712910
    Abstract: A printing apparatus, comprising a conveyance unit for conveying a sheet, a carriage mounted with a printhead and configured to scan the printhead in a sheet widthwise direction, a platen arranged so as to face the printhead, a detection unit mounted on the carriage and configured to detect a distance to a sheet, a support portion, for supporting a sheet from below, arranged on a downstream side of the carriage in a conveyance direction, movable between a first position at which the support portion forms a conveyance surface for a sheet and a second position at which the support portion protrudes above the conveyance surface, and a determination unit configured to determine, based on a detection result of the detection unit, whether the support portion is at the first position or the second position.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: August 1, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohito Abe, Yasuyuki Asai, Hiromasa Yoneyama, Ryohei Maruyama, Itaru Wada, Yoshiaki Suzuki, Tsutomu Obata, Noriyuki Aoki
  • Patent number: 11679606
    Abstract: There is provided with printing apparatus. A printing unit prints an image on a printing medium and is able to move. A cutter unit is able to connect with or separate from the printing unit, and, by following a movement of the printing unit, cuts the printing medium. A control unit, in a case where a predetermined condition is satisfied after the printing medium is cut by the cutter unit, causes the printing unit to perform printing on a succeeding printing medium, while moving the printing unit in a state in which the cutter unit is connected with the printing unit.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: June 20, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiromasa Yoneyama, Yasuyuki Asai, Ryohei Maruyama, Itaru Wada, Yoshiaki Suzuki, Tomohito Abe, Tsutomu Obata, Noriyuki Aoki
  • Publication number: 20230098088
    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: Application
    Filed: December 5, 2022
    Publication date: March 30, 2023
    Inventors: Tomohito Abe, Daigo Kuronuma, Ryutaro Takahashi, Naoaki Wada, Noriyuki Aoki, Ryohei Maruyama, Masakazu Nagashima, Toshiaki Yamaguchi
  • Patent number: 11590777
    Abstract: A printing apparatus that includes a holding unit configured to hold a roll sheet performs supplying the sheet by rotating the roll sheet held by the holding unit; nipping and conveying the supplied sheet; performing printing on the conveyed sheet; detecting occurrence of a print medium jam of the sheet; and, if the printing apparatus has detected a print medium jam of the sheet, performing a control process of supplying the sheet in a state in which the conveying is stopped.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: February 28, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiaki Suzuki, Hiromasa Yoneyama, Ryohei Maruyama, Itaru Wada, Tomohito Abe, Tsutomu Obata, Noriyuki Aoki, Yasuyuki Asai
  • Patent number: 11541674
    Abstract: A printing apparatus includes a conveyance unit configured to be able to convey a roll sheet that is wound in a rolled shape and a cut sheet that is not wound in a rolled shape to a printing unit configured to print an image; a receiving unit detachably attached to the apparatus, the receiving unit being configured to receive the cut sheet onto which printing has been performed by the printing unit; a detection unit configured to detect whether the receiving unit is attached to the apparatus; and a holding unit configured to, in a case where the detection unit detects that the receiving unit is not attached to the apparatus, nip to hold the cut sheet onto which printing has been performed by the printing unit.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: January 3, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Itaru Wada, Yasuyuki Asai, Hiromasa Yoneyama, Ryohei Maruyama, Yoshiaki Suzuki, Tomohito Abe, Tsutomu Obata, Noriyuki Aoki
  • Patent number: 11524512
    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: June 15, 2021
    Date of Patent: December 13, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohito Abe, Daigo Kuronuma, Ryutaro Takahashi, Naoaki Wada, Noriyuki Aoki, Ryohei Maruyama, Masakazu Nagashima, Toshiaki Yamaguchi
  • Publication number: 20220388318
    Abstract: A printing apparatus includes a conveyance unit configured to be able to convey a roll sheet that is wound in a rolled shape and a cut sheet that is not wound in a rolled shape to a printing unit configured to print an image, a receiving unit detachably attached to the apparatus, the receiving unit being configured to receive the cut sheet onto which printing has been performed by the printing unit; a detection unit configured to detect whether the receiving unit is attached to the apparatus; and a holding unit configured to, in a case where the detection unit detects that the receiving unit is not attached to the apparatus, nip to hold the cut sheet onto which printing has been performed by the printing unit.
    Type: Application
    Filed: August 16, 2022
    Publication date: December 8, 2022
    Inventors: Itaru Wada, Yasuyuki Asai, Hiromasa Yoneyama, Ryohei Maruyama, Yoshiaki Suzuki, Tomohito Abe, Tsutomu Obata, Noriyuki Aoki
  • Publication number: 20220363081
    Abstract: A printing apparatus include a carriage mounted with a printing unit, a belt, a first motor configured to drive the belt at one end in the 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 first control, an output of the second motor is controlled from a first state lower than an output of the first motor to a second state higher than the first state.
    Type: Application
    Filed: May 12, 2022
    Publication date: November 17, 2022
    Inventors: Tomohito Abe, Kenta Imura, Kichinosuke Hirokawa, Akira Fujikake, Toshiaki Yamaguchi, Daigo Kuronuma, Masakazu Nagashima, Naoaki Wada, Ryohei Maruyama, Hideyuki Nozawa, Hiromasa Yoneyama
  • Publication number: 20220363079
    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: Application
    Filed: May 12, 2022
    Publication date: November 17, 2022
    Inventors: Naoaki Wada, Daigo Kuronuma, Masakazu Nagashima, Tomohito Abe, Ryohel Maruyama, Kenta limura, Hiromasa Yoneyama, Kichinosuke Hirokawa, Akira Fujikake, Toshiaki Yamaguchi, Hideyuki Nozawa
  • Publication number: 20220363078
    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 configure 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 a second 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 second direction while changing an output ratio between the first motor and the second motor.
    Type: Application
    Filed: May 12, 2022
    Publication date: November 17, 2022
    Inventors: Ryohei Maruyama, Daigo Kuronuma, Masakazu Nagashima, Tomohito Abe, Kenta limura, Hiromasa Yoneyama, Naoaki Wada, Kichinosuke Hirokawa, Akira Fujikake, Toshiaki Yamaguchi, Hideyuki Nozawa
  • Patent number: 11376875
    Abstract: A printing apparatus including: a carriage having a print head and configured to be movable in an intersecting direction; a slitter unit configured to be movable in the intersecting direction and cut a roll sheet in a conveyance direction; a detection sensor mounted on the carriage and configured to detect a cut portion of the roll sheet that has been cut by the slitter unit; and a control unit configured to control the carriage to move after controlling the slitter unit to move and cut the roll sheet, so that the cut portion made by the slitter unit is detected by the detection sensor, and configured to control a moving distance of the carriage or the slitter, based on a first moving distance by which the slitter unit has moved and a second moving distance of the carriage at a timing where the detection sensor detects the cut portion.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: July 5, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Daigo Kuronuma, Ryutaro Takahashi, Naoaki Wada, Tomohito Abe, Noriyuki Aoki, Ryohei Maruyama, Masakazu Nagashima, Toshiaki Yamaguchi
  • Publication number: 20220097427
    Abstract: A carriage apparatus characterized by comprising 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 has the same kind of driving characteristics as driving characteristics of the first motor, detection means for detecting a position of the carriage related to the predetermined direction, and control means for controlling driving of the first motor and the second motor by feeding back a detection result detected by the detection means.
    Type: Application
    Filed: September 29, 2021
    Publication date: March 31, 2022
    Inventors: Tomohito Abe, Ryutaro Takahashi, Naoaki Wada, Daigo Kuronuma, Kenta Iimura, Ryohei Maruyama, Masakazu Nagashima, Toshiaki Yamaguchi, Takahiro Daikoku
  • Publication number: 20220097429
    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: Application
    Filed: September 29, 2021
    Publication date: March 31, 2022
    Inventors: Ryutaro Takahashi, Daigo Kuronuma, Naoaki Wada, Tomohito Abe, Kenta limura, Ryohei Maruyama, Masakazu Nagashima, Toshiaki Yamaguchi
  • Publication number: 20220097405
    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: Application
    Filed: September 28, 2021
    Publication date: March 31, 2022
    Inventors: Ryohei Maruyama, Kenta Iimura, Daigo Kuronuma, Takaya Sato, Tomohito Abe, Naoaki Wada, Masakazu Nagashima, Toshiaki Yamaguchi, Ryutaro Takahashi
  • Publication number: 20220097390
    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: Application
    Filed: September 28, 2021
    Publication date: March 31, 2022
    Inventors: Takaya Sato, Ryohei Maruyama, Daigo Kuronuma, Kenta Iimura, Tomohito Abe, Naoaki Wada, Masakazu Nagashima, Toshiaki Yamaguchi, Ryutaro Takahashi
  • Publication number: 20210394539
    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: Application
    Filed: June 15, 2021
    Publication date: December 23, 2021
    Inventors: Tomohito Abe, Daigo Kuronuma, Ryutaro Takahashi, Naoaki Wada, Noriyuki Aoki, Ryohei Maruyama, Masakazu Nagashima, Toshiaki Yamaguchi
  • Patent number: 11198302
    Abstract: An object of the present invention is to provide an ink jet printing apparatus that can reduce the time for the initial installment. In the present invention, in the initial installation, once an ink tank is attached to a printing apparatus main body, a notification unit makes a notification prompting attaching of a printing head during an operation of supplying ink from the ink tank to a reservoir tank.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: December 14, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoaki Wada, Noriyuki Aoki, Tomohito Abe, Daigo Kuronuma, Ryutaro Takahashi, Masakazu Nagashima, Ryohei Maruyama, Toshiaki Yamaguchi