Patents by Inventor Akiko Aichi

Akiko Aichi 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: 10611156
    Abstract: An inkjet recording apparatus according to the present disclosure executes a first wiping operation in a case where the count value counted by the count unit is higher than a first threshold value while the recording operation is being performed and execute a second wiping operation when the recording operation completes in a case where the count value counted by the count unit is higher than a second threshold value. The inkjet recording apparatus also executes the second wiping operation when the first wiping operation has been performed while the recording operation is being performed.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: April 7, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroshi Taira, Toshimitsu Danzuka, Taku Yokozawa, Noboru Kunimine, Akiko Aichi, Kazuki Narumi, Tomoki Yamamuro, Kazuhiko Sato, Kazuo Suzuki
  • Patent number: 10479090
    Abstract: An inkjet recording apparatus includes a recording unit, a first ink storage unit, a second ink storage unit, a discharge unit, a first detection unit configured to detect that an amount of the ink stored in the first ink storage unit is below a first predetermined amount, and a second detection unit configured to detect that an amount of the ink stored in the second ink storage unit is below a second predetermined amount. The inkjet recording apparatus further includes a control unit configured to control the discharge operation after the detection by the first detection unit and the detection by the second detection unit based on a detection timing of the first detection unit and a detection timing of the second detection unit.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: November 19, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshimitsu Danzuka, Taku Yokozawa, Masataka Kato, Akiko Aichi, Shin Genta, Kazuki Narumi
  • Publication number: 20190232671
    Abstract: According to an embodiment of this invention, an apparatus comprises: a detachable inktank containing ink; a subtank containing the ink supplied from the inktank; a printhead configured to discharge the ink supplied from the subtank; an ink supply path connecting the subtank to the printhead; a valve arranged on the ink supply path; a supply unit configured to supply the ink from the inktank to the subtank by repeatedly opening and closing the valve; a suction unit configured to suck the ink from the printhead; and a control unit configured to control, when the inktank is attached, the supply unit to operate for a predetermined number of times to supply the ink from the inktank to the subtank, and to subsequently control the suction unit to operate to supply the ink from the subtank to the printhead.
    Type: Application
    Filed: January 22, 2019
    Publication date: August 1, 2019
    Inventors: Toshimitsu Danzuka, Naoaki Wada, Kazuki Narumi, Tomoki Yamamuro, Hiroshi Taira, Akiko Aichi, Noboru Kunimine, Taku Yokozawa, Kazuo Suzuki, Kazuhiko Sato, Masataka Kato, Shin Genta, Hiroto Kango
  • Publication number: 20180370239
    Abstract: An inkjet recording apparatus according to the present disclosure executes a first wiping operation in a case where the count value counted by the count unit is higher than a first threshold value while the recording operation is being performed and execute a second wiping operation when the recording operation completes in a case where the count value counted by the count unit is higher than a second threshold value. The inkjet recording apparatus also executes the second wiping operation when the first wiping operation has been performed while the recording operation is being performed.
    Type: Application
    Filed: June 18, 2018
    Publication date: December 27, 2018
    Inventors: Hiroshi Taira, Toshimitsu Danzuka, Taku Yokozawa, Noboru Kunimine, Akiko Aichi, Kazuki Narumi, Tomoki Yamamuro, Kazuhiko Sato, Kazuo Suzuki
  • Publication number: 20180257380
    Abstract: An inkjet recording apparatus includes a recording unit, a first ink storage unit, a second ink storage unit, a discharge unit, a first detection unit configured to detect that an amount of the ink stored in the first ink storage unit is below a first predetermined amount, and a second detection unit configured to detect that an amount of the ink stored in the second ink storage unit is below a second predetermined amount. The inkjet recording apparatus further includes a control unit configured to control the discharge operation after the detection by the first detection unit and the detection by the second detection unit based on a detection timing of the first detection unit and a detection timing of the second detection unit.
    Type: Application
    Filed: March 6, 2018
    Publication date: September 13, 2018
    Inventors: Toshimitsu Danzuka, Taku Yokozawa, Masataka Kato, Akiko Aichi, Shin Genta, Kazuki Narumi
  • Patent number: 9545791
    Abstract: When the head temperature Tfinish, which is the head temperature at the time of completion of a preceding scan, is higher than the stable ejection temperature Tstable, the target temperature is made a temperature that is only a temperature value ?T lower than the head temperature Tfinish. On the other hand, when Tfinish, the head temperature at the time of print completion, is lower than the stable ejection temperature Tstable, the target temperature is made a temperature that is only a temperature value ?T higher than the head temperature Tfinish. Because of this it is possible to inhibit head temperature rise in the case where an image with a high print density is printed.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: January 17, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kenichi Oonuki, Hidehiko Kanda, Akiko Aichi, Hirokazu Yoshikawa, Hiroshi Taira