Patents by Inventor Rie Takekoshi

Rie Takekoshi 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: 20240246343
    Abstract: It is intended to excellently maintain a discharge characteristic of a discharge head. A liquid discharge apparatus includes a discharge head including a nozzle for discharging liquid, a circulation unit capable of circulating liquid through a circulation flow path including the discharge head, a cap unit capable of capping a nozzle surface of the discharge head where the nozzle is formed, and a control unit for controlling the discharge head, the circulation unit, and the cap unit. In a case where anomaly is detected and the cap unit cannot cap the nozzle surface, the control unit causes the circulation unit to circulate liquid through the circulation flow path.
    Type: Application
    Filed: December 28, 2023
    Publication date: July 25, 2024
    Inventors: AKIHIRO TOMIDA, TOSHIMITSU DANZUKA, KEITA ISHIMI, TAKAO OGATA, RIE TAKEKOSHI, AKIKO AICHI
  • Publication number: 20240198682
    Abstract: A technology capable of efficiently using a wiping member is to be provided. A printing apparatus is equipped with: a printing unit configured with an ejection port surface on which an ejection port array with a plurality of ejection ports that ejects ink being arranged in an array is formed; a wiping unit configured with a wiping member for wiping a predetermined area including the ejection port array of the ejection port surface, so as to be capable of wiping the predetermined area by relative movement with the printing unit; an application unit configured to be capable of applying a wiping liquid for re-dispersing the ink; and a control unit configured to control the application of the wiping liquid, which is performed by the application unit to a wiping area that wipes the predetermined area, according to a adhesion amount of the ink adhering to the wiping member.
    Type: Application
    Filed: December 11, 2023
    Publication date: June 20, 2024
    Inventors: RIE TAKEKOSHI, TOSHIMITSU DANZUKA, AKIHIRO TOMIDA, KEITA ISHIMI, AKIKO AICHI, HIROTO KANGO
  • Publication number: 20240198680
    Abstract: A liquid ejection apparatus including: a liquid ejection head having first and second nozzle arrays that eject first and second liquids, respectively; first and second liquid supply channels which supply the first and second liquids inside first and second liquid containing units to the liquid ejection head, respectively; first and second pressurization units which pump the first and second liquids to the liquid ejection head through the first and second liquid supply channels; and a control unit configured, in a case of preparing for detaching the liquid ejection head, to control the first and second pressurization units to stop pumping, respectively, and to control the liquid ejection head to discharge the first and second liquids from the first and second nozzle arrays, respectively, while controlling amounts of the first and second liquids discharged from the first and second nozzle arrays, respectively, in the liquid discharge operation.
    Type: Application
    Filed: December 18, 2023
    Publication date: June 20, 2024
    Inventors: AKIKO AICHI, KEITA ISHIMI, RIE TAKEKOSHI, AKIHIRO TOMIDA, TOSHIMITSU DANZUKA, TAKAO OGATA
  • Publication number: 20240198664
    Abstract: A technology capable of detecting a state of application of a wiping liquid with high accuracy is to be provided. To a predetermined area of a wiping member that wipes an ink ejection port surface of a printing unit, a predetermined pattern is printed by the printing unit, and a wiping liquid for re-dispersing ink that has adhered to or solidified on the ejection port surface is applied by the application unit. Then, the concentration of ink on the predetermined area is detected by the detection unit.
    Type: Application
    Filed: December 11, 2023
    Publication date: June 20, 2024
    Inventors: KEITA ISHIMI, TOSHIMITSU DANZUKA, RIE TAKEKOSHI, TAKAO OGATA, AKIHIRO TOMIDA, AKIKO AICHI
  • Publication number: 20240198678
    Abstract: A printing apparatus includes: a supply unit configured to supply a cleaning liquid into the cap; a discharge unit configured to discharge the liquid from the cap; and a control unit configured to execute a discharge operation to cause the discharge unit to discharge an amount of the liquid smaller than a supply amount of the cleaning liquid supplied into the cap by the supply unit.
    Type: Application
    Filed: November 17, 2023
    Publication date: June 20, 2024
    Inventors: AKIKO AICHI, TOSHIMITSU DANZUKA, RIE TAKEKOSHI, AKIHIRO TOMIDA, KEITA ISHIMI, HIROTO KANGO
  • Publication number: 20240165954
    Abstract: A printing apparatus includes: a carriage configured to cause a printing head to scan, the printing head having a nozzle configured to eject a liquid; a first cap disposed at one end of a range in which the carriage moves and configured to cap the nozzle; a second cap disposed at the other end of the range in which the carriage moves and configured to cap the nozzle; and a control unit configured to be capable of executing a first control in which the nozzle is capped by the first cap and a second control in which the nozzle is capped by the second cap, in a case where the carriage has anomalously stopped during printing using the printing head.
    Type: Application
    Filed: November 17, 2023
    Publication date: May 23, 2024
    Inventors: HIROTO KANGO, TOSHIMITSU DANZUKA, RIE TAKEKOSHI, AKIHIRO TOMIDA, KEITA ISHIMI, AKIKO AICHI
  • Publication number: 20240010002
    Abstract: It is characterized by: a print head configured to eject ink, which has flowed from a first-channel into a pressure-chamber, from a nozzle by driving an ejection energy generating element installed in the pressure-chamber; a circulation-pump configured to circulate the ink in a circulation channel including the first-channel, the pressure-chamber, and a second-channel that flows the ink inside the pressure-chamber to the outside of the pressure-chamber; a wiping unit configured with a cleaning member that can wipe an ejection port surface of an ejection port and a winding member that winds the cleaning member; and a control unit configured to control a cleaning operation in which the wiping unit wipes the ejection port surface, so that, in a case where the cleaning operation is performed after the circulation-pump is stopped, the cleaning operation is changed based on an elapsed time from the time the circulation-pump stopped driving.
    Type: Application
    Filed: June 23, 2023
    Publication date: January 11, 2024
    Inventors: RIE TAKEKOSHI, TOSHIMITSU DANZUKA, AKIHIRO TOMIDA, AKIKO AICHI, KEITA ISHIMI, HIROTO KANGO, TAKU YOKOZAWA, KAZUO SUZUKI
  • Publication number: 20240001678
    Abstract: A printing apparatus includes: an ejection unit configured to perform a print operation of forming an image on a print medium by ejecting liquid from an ejection port by using drive of an ejection energy generation element provided in a pressure chamber, the liquid flowing into the pressure chamber from a first flow passage; a circulation unit configured to circulate the liquid in a circulation flow passage including the first flow passage, the pressure chamber, and a second flow passage configured to allow the liquid in the pressure chamber to flow to an outside of the pressure chamber; a recovery unit configured to perform a recovery operation of the ejection unit; and a control unit configured to stop the circulation unit before completion of the print operation by the ejection unit in the case where the recovery operation is to be performed after the print operation.
    Type: Application
    Filed: June 29, 2023
    Publication date: January 4, 2024
    Inventors: AKIHIRO TOMIDA, KEITA ISHIMI, HIROTO KANGO, KAZUO SUZUKI, TAKU YOKOZAWA, RIE TAKEKOSHI, TOSHIMITSU DANZUKA, AKIKO AICHI
  • Publication number: 20230136284
    Abstract: A recording apparatus includes a recording unit, a scanning unit configured to perform relative scanning by moving the recording unit and a recording medium relative to each other at least once with respect to a unit region on the recording medium, a recovery unit configured to perform a recovery operation for maintaining or recovering a recording performance of the recording unit for application of a recording material, and a control unit configured to control the recovery unit, wherein the control unit acquires recording mode information about recording of an image to be performed on a recording medium for (n+1)-th page (n being a natural number) and determines, based on the acquired recording mode information, whether to perform an inter-page recovery operation at timing after recording of an image on a recording medium for n-th page ends and before recording of an image on a recording medium for (n+1)-th page starts.
    Type: Application
    Filed: December 30, 2022
    Publication date: May 4, 2023
    Inventors: Toshimitsu Danzuka, Masataka Kato, Hiroto Kango, Rie Takekoshi, Akihiro Tomida, Tomoki Yamamuro, Keita Ishimi, Kazuki Narumi, Taku Yokozawa, Kazuo Suzuki, Kazuhiko Sato
  • Patent number: 11560003
    Abstract: A recording apparatus includes a recording unit, a scanning unit configured to perform relative scanning by moving the recording unit and a recording medium relative to each other at least once with respect to a unit region on the recording medium, a recovery unit configured to perform a recovery operation for maintaining or recovering a recording performance of the recording unit for application of a recording material, and a control unit configured to control the recovery unit, wherein the control unit acquires recording mode information about recording of an image to be performed on a recording medium for (n+1)-th page (n being a natural number) and determines, based on the acquired recording mode information, whether to perform an inter-page recovery operation at timing after recording of an image on a recording medium for n-th page ends and before recording of an image on a recording medium for (n+1)-th page starts.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: January 24, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshimitsu Danzuka, Masataka Kato, Hiroto Kango, Rie Takekoshi, Akihiro Tomida, Tomoki Yamamuro, Keita Ishimi, Kazuki Narumi, Taku Yokozawa, Kazuo Suzuki, Kazuhiko Sato
  • Publication number: 20220388321
    Abstract: A printing apparatus comprises a carriage including a print head that discharges ink, the carriage reciprocally moving relative to a print medium, a wiping unit configured to wipe a discharge port surface, and a control unit configured to control a movement operation of the carriage and a wiping operation of the wiping unit such that when a deceleration when stopping the carriage is a first deceleration, a time from when the carriage stops to when the wiping unit starts wiping is set to a first time, and when the deceleration when stopping the carriage is a second deceleration lower than the first deceleration, the time from when the carriage stops to when the wiping unit starts wiping is set to a second time shorter than the first time.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 8, 2022
    Inventors: Rie Takekoshi, Hiroto Kango, Kazuhiko Sato, Kazuo Suzuki, Toshimitsu Danzuka, Masataka Kato, Shin Genta, Kazuki Narumi, Tomoki Yamamuro, Takaaki Shima, Keita Ishimi
  • Publication number: 20220324233
    Abstract: A printing apparatus includes a maintenance unit that can wipe a discharge port surface of a printing unit provided with a first discharge port array to discharge an ink and a second discharge port array to discharge a reaction liquid that reacts with the ink, by using a wiping member provided with a property to absorb the ink and the reaction liquid. In the wiping member, a first wiping portion to wipe the first discharge port array and a second wiping portion to wipe the second discharge port array are located in different positions in a first direction being a direction of relative movement of the printing unit and the maintenance unit.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 13, 2022
    Inventors: Masaya Uetsuki, Keita Ishimi, Rie Takekoshi
  • Publication number: 20220305792
    Abstract: A technique for suppressing ejection failure at an ejection port, which is caused by reaction of reaction liquid and ink during a wiping operation, is to be provided. Before the ejection port surface, on which the first ejection port array that is capable of ejecting the ink and the second ejection port array that is capable of ejecting the reaction liquid which reacts with the ink are formed, is wiped by the maintenance unit that is capable of receiving the ink and the reaction liquid, ink that does not contribute to printing is ejected to an area of the maintenance unit between an area abutted by the first ejection port array during the wiping and an area abutted by the second ejection port array during the wiping.
    Type: Application
    Filed: March 16, 2022
    Publication date: September 29, 2022
    Inventors: Yosuke Ishii, Rie Takekoshi, Keita Ishimi
  • Publication number: 20220016917
    Abstract: A recording apparatus includes a recording unit, a scanning unit configured to perform relative scanning by moving the recording unit and a recording medium relative to each other at least once with respect to a unit region on the recording medium, a recovery unit configured to perform a recovery operation for maintaining or recovering a recording performance of the recording unit for application of a recording material, and a control unit configured to control the recovery unit, wherein the control unit acquires recording mode information about recording of an image to be performed on a recording medium for (n+1)-th page (n being a natural number) and determines, based on the acquired recording mode information, whether to perform an inter-page recovery operation at timing after recording of an image on a recording medium for n-th page ends and before recording of an image on a recording medium for (n+1)-th page starts.
    Type: Application
    Filed: July 12, 2021
    Publication date: January 20, 2022
    Inventors: Toshimitsu Danzuka, Masataka Kato, Hiroto Kango, Rie Takekoshi, Akihiro Tomida, Tomoki Yamamuro, Keita Ishimi, Kazuki Narumi, Taku Yokozawa, Kazuo Suzuki, Kazuhiko Sato
  • Publication number: 20210237477
    Abstract: A printing apparatus includes a conveyance unit, a printing unit, and a heating unit that heats a print medium. The conveyance unit conveys the print medium such that the printing unit can print an image onto a second print region at a printing position when the heating unit can heat a first print region at a heating position. If the ink amount applied to the first print region is a first amount, an image is printed onto the second print region in a first mode. If the applied ink amount is a second amount larger than the first amount, an image is printed onto the second print region in a second mode. A time for which the first print region passes through the heating position in the second mode is longer than a time for which the first print region passes through the heating position in the first mode.
    Type: Application
    Filed: January 29, 2021
    Publication date: August 5, 2021
    Inventors: Rie Takekoshi, Takayuki Ushiyama, Keita Ishimi, Tatsuo Shimmoto, Masaya Uetsuki
  • Patent number: 10717296
    Abstract: A printing apparatus applies liquids so that a reaction liquid and a clear emulsion liquid are mainly applied in a first scanning stage; a coloring material liquid is mainly applied in an intermediate scanning stage; and the clear emulsion liquid is mainly applied in a last scanning stage.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: July 21, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takayuki Ushiyama, Keita Ishimi, Rie Takekoshi, Tatsuo Shimmoto, Masaya Uetsuki
  • Patent number: 10688820
    Abstract: A printing apparatus is operable to eject a plurality of inks having different functions onto any one of a plurality of types of printing medium. The plurality of inks include a first ink containing a coloring material, and a second ink containing a polymer emulsion and substantially no coloring material. The plurality of types of printing medium includes a first printing medium and a second printing medium less permeable to liquid than the first printing medium. When the first printing medium is printed, the first ink is used without using the second ink, and when the second printing medium is printed, both the first and the second ink are used.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: June 23, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takayuki Ushiyama, Keita Ishimi, Rie Takekoshi, Tatsuo Shimmoto, Masaya Uetsuki
  • Patent number: 10501652
    Abstract: An ink set including a first ink containing a pigment and a water-soluble resin having an anionic group, a second ink containing substantially no pigment and a reactive component, and a third ink containing a polymer emulsion and a water-soluble resin having an anionic group. The pKa of the reactive component is lower than the pKa of the anionic group of the water-soluble resin in the first ink and higher than the pKa of the anionic group of the water-soluble resin in the third ink.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: December 10, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keita Ishimi, Rie Takekoshi, Tatsuo Shimmoto, Takayuki Ushiyama
  • Publication number: 20190092038
    Abstract: A printing apparatus applies liquids so that a reaction liquid and a clear emulsion liquid are mainly applied in a first scanning stage; a coloring material liquid is mainly applied in an intermediate scanning stage; and the clear emulsion liquid is mainly applied in a last scanning stage
    Type: Application
    Filed: September 19, 2018
    Publication date: March 28, 2019
    Inventors: Takayuki Ushiyama, Keita Ishimi, Rie Takekoshi, Tatsuo Shimmoto, Masaya Uetsuki
  • Patent number: 10189269
    Abstract: A recording apparatus discharges both high-permeability black ink and low-permeability black ink to a boundary between a color area and a black area.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: January 29, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Ayumi Yasuda, Junichi Saito, Noboru Kunimine, Takumi Kaneko, Rie Takekoshi, Takayuki Ushiyama, Tatsuo Shimmoto, Keita Ishimi