Patents by Inventor Tomoki Yamamuro

Tomoki Yamamuro 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: 11919300
    Abstract: An inkjet printing apparatus adopting short pulse heating is designed to output a uniform image without unevenness. To this end, in a serial inkjet printing apparatus, a print head is subjected to a short pulse heating treatment before each print scan is carried out. In a case where a print medium is a first print medium, the print head is heated to a first target temperature before carrying out each of the print scans. In a case where the print medium is a second print medium, the print head is heated to a second target temperature lower than the first target temperature before carrying out each of the print scans.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: March 5, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Kawafuji, Kazuhiko Sato, Kazuo Suzuki, Takeshi Murase, Hiroshi Taira, Tomoki Yamamuro, Sae Mogi, Masaki Nitta
  • Patent number: 11772380
    Abstract: The object of the present disclosure is to optimize the time necessary for filling and the ink consumption. One embodiment of the present disclosure is a printing apparatus having: a storage unit; a print head having an ejection port from which ink supplied from the storage unit is ejected; an ink supply path that connects the storage unit and the print head; a suction unit configured to perform suction at the ejection port; and a supply control unit configured to supply ink stored in the storage unit to the ink supply path and the print head by performing suction at the ejection port by the suction unit, and the printing apparatus has an acquisition unit configured to acquire information relating to ink discharge from the ink supply path and the supply control unit determines the number of times of suction by the suction unit based on the information.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: October 3, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuki Narumi, Masataka Kato, Toshimitsu Danzuka, Yasunori Fujimoto, Shin Genta, Tomoki Yamamuro, Hiroto Kango, Kazuhiko Sato, Kazuo Suzuki
  • Publication number: 20230202193
    Abstract: An object is to provide a technique of calculating an ejection amount of a ink in accordance with a printing head. A printing apparatus includes: a printing head including an ejection port array in which multiple ejection ports to eject a ink are arrayed; a conveyer unit configured to convey a printing medium in a conveyance direction; and a controller unit configured to control the printing head. The controller unit executes processing to obtain the printing dot number based on printing data and processing to calculate an amount of the ink used in a case of performing printing based on the printing data by using different calculation methods between a case where a first printing mode is set and a case where a second printing mode is set based on the printing dot number and an ejection amount conversion factor corresponding to a temperature of the printing head.
    Type: Application
    Filed: December 19, 2022
    Publication date: June 29, 2023
    Inventors: TOMOKI YAMAMURO, KAZUHIKO SATO, KAZUO SUZUKI, TAKESHI MURASE, HIROSHI TAIRA, HIROSHI KAWAFUJI, SAE MOGI, MASAKI NITTA
  • 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: 11623453
    Abstract: To provide a liquid storage container equipped with a plug member that can prevent leakage of a liquid from the liquid storage container and can be opened without causing scatter of the liquid, and a liquid ejection apparatus equipped with the liquid storage container. For the purpose, at least one of a connection part of the convex part with the cover part and an apical part of the convex part most apart from the connection part is provided offset from the centroid of the cover part, seen from a direction orthogonal to an opening surface of a supply port in a state that the plug member is mounted on a supply port of the liquid storage container.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: April 11, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Norihiro Ikebe, Takeho Miyashita, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
  • 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
  • Patent number: 11390096
    Abstract: An ejection apparatus includes a platen for supporting a recording medium, an absorber provided in the platen for absorbing liquid, an ejection unit for ejecting a plurality of types of ink including a first liquid containing a component to be deposited when the first liquid is ejected onto the absorber, and a second liquid different from the first liquid for suppressing deposition of the first liquid, a detection unit for detecting a state of a predetermined region of the absorber, and a control unit for controlling the detection unit to detect the state, and controlling the ejection unit to eject the second liquid to the predetermined region based on a result of the detection. When the first liquid is ejected to the predetermined region, the second liquid is ejected to the predetermined region after the ejection of the first liquid is finished, without using the result of the detection.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: July 19, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoki Yamamuro, Kazuo Suzuki, Toshimitsu Danzuka, Yasunori Fujimoto, Masataka Kato, Kazuki Narumi, Hiroto Kango, Kazuhiko Sato
  • Publication number: 20220126584
    Abstract: The object of the present disclosure is to optimize the time necessary for filling and the ink consumption. One embodiment of the present disclosure is a printing apparatus having: a storage unit; a print head having an ejection port from which ink supplied from the storage unit is ejected; an ink supply path that connects the storage unit and the print head; a suction unit configured to perform suction at the ejection port; and a supply control unit configured to supply ink stored in the storage unit to the ink supply path and the print head by performing suction at the ejection port by the suction unit, and the printing apparatus has an acquisition unit configured to acquire information relating to ink discharge from the ink supply path and the supply control unit determines the number of times of suction by the suction unit based on the information.
    Type: Application
    Filed: January 6, 2022
    Publication date: April 28, 2022
    Inventors: Kazuki Narumi, Masataka Kato, Toshimitsu Danzuka, Yasunori Fujimoto, Shin Genta, Tomoki Yamamuro, Hiroto Kango, Kazuhiko Sato, Kazuo Suzuki
  • Publication number: 20220048295
    Abstract: To provide a liquid storage container equipped with a plug member that can prevent leakage of a liquid from the liquid storage container and can be opened without causing scatter of the liquid, and a liquid ejection apparatus equipped with the liquid storage container. For the purpose, at least one of a connection part of the convex part with the cover part and an apical part of the convex part most apart from the connection part is provided offset from the centroid of the cover part, seen from a direction orthogonal to an opening surface of a supply port in a state that the plug member is mounted on a supply port of the liquid storage container.
    Type: Application
    Filed: November 1, 2021
    Publication date: February 17, 2022
    Inventors: Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Norihiro Ikebe, Takeho Miyashita, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
  • Patent number: 11247471
    Abstract: The object of the present disclosure is to optimize the time necessary for filling and the ink consumption. One embodiment of the present disclosure is a printing apparatus having: a storage unit; a print head having an ejection port from which ink supplied from the storage unit is ejected; an ink supply path that connects the storage unit and the print head; a suction unit configured to perform suction at the ejection port; and a supply control unit configured to supply ink stored in the storage unit to the ink supply path and the print head by performing suction at the ejection port by the suction unit, and the printing apparatus has an acquisition unit configured to acquire information relating to ink discharge from the ink supply path and the supply control unit determines the number of times of suction by the suction unit based on the information.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: February 15, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuki Narumi, Masataka Kato, Toshimitsu Danzuka, Yasunori Fujimoto, Shin Genta, Tomoki Yamamuro, Hiroto Kango, Kazuhiko Sato, Kazuo Suzuki
  • 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
  • Patent number: 11198309
    Abstract: A recording apparatus discharges an ink in a first color to a position at which an accumulated state on an ink absorber is to be detected. After that, a light is emitted onto the position from a light emitting unit, and reflected light is received by a light receiving unit.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: December 14, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoki Yamamuro, Toshimitsu Danzuka, Yasunori Fujimoto, Masataka Kato, Kazuki Narumi, Shin Genta, Kazuhiko Sato, Kazuo Suzuki, Hiroto Kango
  • Patent number: 11192383
    Abstract: To provide a liquid storage container equipped with a plug member that can prevent leakage of a liquid from the liquid storage container and can be opened without causing scatter of the liquid, and a liquid ejection apparatus equipped with the liquid storage container. For the purpose, at least one of a connection part of the convex part with the cover part and an apical part of the convex part most apart from the connection part is provided offset from the centroid of the cover part, seen from a direction orthogonal to an opening surface of a supply port in a state that the plug member is mounted on a supply port of the liquid storage container.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: December 7, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Norihiro Ikebe, Takeho Miyashita, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
  • Publication number: 20210300031
    Abstract: An inkjet printing apparatus adopting short pulse heating is designed to output a uniform image without unevenness. To this end, in a serial inkjet printing apparatus, a print head is subjected to a short pulse heating treatment before each print scan is carried out. In a case where a print medium is a first print medium, the print head is heated to a first target temperature before carrying out each of the print scans. In a case where the print medium is a second print medium, the print head is heated to a second target temperature lower than the first target temperature before carrying out each of the print scans.
    Type: Application
    Filed: March 15, 2021
    Publication date: September 30, 2021
    Inventors: Hiroshi Kawafuji, Kazuhiko Sato, Kazuo Suzuki, Takeshi Murase, Hiroshi Taira, Tomoki Yamamuro, Sae Mogi, Masaki Nitta
  • Patent number: 11077670
    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: Grant
    Filed: January 22, 2019
    Date of Patent: August 3, 2021
    Assignee: Canon Kabushiki Kaisha
    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: 20210221138
    Abstract: A wiping device includes a cleaning member and a control unit. The cleaning member performs wiping operation to wipe an ejection port surface of a recording head. The recording head includes the ejection port surface on which an ejection port, for ejecting ink containing particles of a coloring material, is formed. The control unit controls the cleaning member to perform the wiping operation in a state where particles are imparted to a surface of the cleaning member. The imparted particles are different in type from the coloring material particles and each imparted particle has a particle diameter greater than a diameter of each of the coloring material particles.
    Type: Application
    Filed: January 6, 2021
    Publication date: July 22, 2021
    Inventors: Shin Genta, Toshimitsu Danzuka, Masataka Kato, Kazuki Narumi, Tomoki Yamamuro, Hiroto Kango, Kazuhiko Sato, Kazuo Suzuki
  • Publication number: 20210155002
    Abstract: An ejection apparatus includes a platen for supporting a recording medium, an absorber provided in the platen for absorbing liquid, an ejection unit for ejecting a plurality of types of ink including a first liquid containing a component to be deposited when the first liquid is ejected onto the absorber, and a second liquid different from the first liquid for suppressing deposition of the first liquid, a detection unit for detecting a state of a predetermined region of the absorber, and a control unit for controlling the detection unit to detect the state, and controlling the ejection unit to eject the second liquid to the predetermined region based on a result of the detection. When the first liquid is ejected to the predetermined region, the second liquid is ejected to the predetermined region after the ejection of the first liquid is finished, without using the result of the detection.
    Type: Application
    Filed: November 12, 2020
    Publication date: May 27, 2021
    Inventors: Tomoki Yamamuro, Kazuo Suzuki, Toshimitsu Danzuka, Yasunori Fujimoto, Masataka Kato, Kazuki Narumi, Hiroto Kango, Kazuhiko Sato
  • Publication number: 20210031547
    Abstract: An inkjet printing apparatus, comprising a printing head, a carriage having the printing head, a first roller pair disposed upstream of the printing head and configured to nip and convey a printing medium, a second roller pair disposed downstream of the printing head and configured to nip and convey a printing medium, a first ink receiver disposed inside a printing region and configured to receive an ink from the printing head, and a second ink receiver disposed outside the printing region and configured to receive an ink from the printing head, wherein the printing head performs preliminary discharge on the first ink receiver in a first nip state, and performs preliminary discharge on the second ink receiver in a second nip state.
    Type: Application
    Filed: July 23, 2020
    Publication date: February 4, 2021
    Inventors: Masataka Kato, Kazuhiko Sato, Kazuo Suzuki, Toshimitsu Danzuka, Yasunori Fujimoto, Shin Genta, Kazuki Narumi, Tomoki Yamamuro, Hiroto Kango
  • Patent number: 10882346
    Abstract: An ink jet recording apparatus of a line-recording-head type includes one or more recording heads using the same ink and performs recording of an image by conveying a recording medium using multiple passes through a recording region of the recording head while the recording medium is repeatedly conveyed backward and forward to speed up recording and improve image quality. A recording head is controlled to provide that an amount of ink applied to a recording medium in a case where the recording medium is conveyed at a first speed is smaller than an amount of ink applied to the recording medium in a case where the recording medium is conveyed at a second speed higher than the first speed in both of a case where the recording medium is accelerated and a case where the recording medium is decelerated.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: January 5, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Taira, Kazuhiko Sato, Kazuo Suzuki, Mitsutoshi Nagamura, Satoshi Azuma, Tomoki Yamamuro, Shingo Nishioka