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).

  • 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
  • Patent number: 10843474
    Abstract: A liquid container unit includes: a liquid container including: a plurality of liquid storage portions; and a plurality of injection ports which are provided to the respective plurality of liquid storage portions, and are configured to enable injection of liquid into the plurality of liquid storage portions; and an injection port cover which is provided to the liquid container so as to be rotatable and is configured to cover the plurality of injection ports so as to be openable and closable, the injection port cover including a plurality of stopper members configured to close the plurality of injection ports when the injection port cover is closed.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: November 24, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Arai, Tomoki Yamamuro, Tatsuaki Orihara, Takeho Miyashita, Kazuya Yoshii, Norihiro Ikebe, Akira Shiba, Ryo Shimamura, Masatoshi Ohira, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
  • Publication number: 20200338893
    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: April 22, 2020
    Publication date: October 29, 2020
    Inventors: Kazuki Narumi, Masataka Kato, Toshimitsu Danzuka, Yasunori Fujimoto, Shin Genta, Tomoki Yamamuro, Hiroto Kango, Kazuhiko Sato, Kazuo Suzuki
  • Publication number: 20200198359
    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: March 4, 2020
    Publication date: June 25, 2020
    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: 20200164664
    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: Application
    Filed: November 14, 2019
    Publication date: May 28, 2020
    Inventors: Tomoki Yamamuro, Toshimitsu Danzuka, Yasunori Fujimoto, Masataka Kato, Kazuki Narumi, Shin Genta, Kazuhiko Sato, Kazuo Suzuki, Hiroto Kango
  • Publication number: 20200114666
    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: Application
    Filed: September 27, 2019
    Publication date: April 16, 2020
    Inventors: Hiroshi Taira, Kazuhiko Sato, Kazuo Suzuki, Mitsutoshi Nagamura, Satoshi Azuma, Tomoki Yamamuro, Shingo Nishioka
  • Patent number: 10618300
    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: August 30, 2018
    Date of Patent: April 14, 2020
    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: 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: 10611162
    Abstract: There are provided a liquid container including a plug member which prevents leakage of a liquid from the liquid container and can be opened without scattering the liquid and a liquid ejection apparatus including the liquid container. For that purpose, a projecting portion in the plug member is provided below a center part of the plug member in a gravity direction in an attitude at the time of use of the liquid ejection apparatus.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: April 7, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Norihiro Ikebe, Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Takeho Miyashita, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
  • Patent number: 10538092
    Abstract: A liquid supplying mechanism includes: a tank including a liquid storage section configured to store a liquid, and a liquid injection port configured to inject the liquid into the liquid storage section; and a bottle configured to replenish the liquid into the tank. The bottle includes: a bottle section configured to store the liquid; and a protruding section, which protrudes from the bottle section, and is insertable into the liquid injection port so as to inject, into the liquid storage section, the liquid stored in the bottle section. The liquid injection port includes: a protruding section insertion portion into which the protruding section of the bottle is insertable; and a protruding section fixing portion, which is engageable with the protruding section of the bottle, to thereby be capable of fixing the bottle to the tank.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: January 21, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeho Miyashita, Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Norihiro Ikebe, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
  • Patent number: 10493749
    Abstract: A printing apparatus includes a printing head configured to eject a first ink and a second ink, wherein the second ink generates less deposition than the first ink, an ink absorber configured to absorb the ink ejected from the printing head, a detection unit configured to detect a state of the ink absorber through an optical method, and a control unit configured to cause the printing head to eject the second ink to the ink absorber based on a detection result of the detection unit.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: December 3, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoki Yamamuro, Atsushi Arai, Masaya Uetsuki, Toshimitsu Danzuka, Kazuo Suzuki, Yoshinori Nakagawa, Masataka Kato, Tsuyoshi Ibe, Shin Genta, Tatsuaki Orihara
  • Publication number: 20190344577
    Abstract: A liquid supplying mechanism includes: a tank including a liquid storage section configured to store a liquid, and a liquid injection port configured to inject the liquid into the liquid storage section; and a bottle configured to replenish the liquid into the tank. The bottle includes: a bottle section configured to store the liquid; and a protruding section, which protrudes from the bottle section, and is insertable into the liquid injection port so as to inject, into the liquid storage section, the liquid stored in the bottle section. The liquid injection port includes: a protruding section insertion portion into which the protruding section of the bottle is insertable; and a protruding section fixing portion, which is engageable with the protruding section of the bottle, to thereby be capable of fixing the bottle to the tank.
    Type: Application
    Filed: July 23, 2019
    Publication date: November 14, 2019
    Inventors: Takeho Miyashita, Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Norihiro Ikebe, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
  • Publication number: 20190337296
    Abstract: A liquid container unit includes: a liquid container including: a plurality of liquid storage portions; and a plurality of injection ports which are provided to the respective plurality of liquid storage portions, and are configured to enable injection of liquid into the plurality of liquid storage portions; and an injection port cover which is provided to the liquid container so as to be rotatable and is configured to cover the plurality of injection ports so as to be openable and closable, the injection port cover including a plurality of stopper members configured to close the plurality of injection ports when the injection port cover is closed.
    Type: Application
    Filed: July 17, 2019
    Publication date: November 7, 2019
    Inventors: Atsushi Arai, Tomoki Yamamuro, Tatsuaki Orihara, Takeho Miyashita, Kazuya Yoshii, Norihiro Ikebe, Akira Shiba, Ryo Shimamura, Masatoshi Ohira, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
  • Patent number: 10427412
    Abstract: An object is to provide a liquid ejecting apparatus that enables a liquid storage container to be properly and easily refilled with a liquid from a liquid refilling container without causing color mixture in the liquid storage container. The liquid ejecting apparatus includes liquid storage containers each configured to feed the liquid to a liquid ejecting portion and liquid refilling containers each configured to refill the liquid storage container with the liquid. A first fitting unit is provided around a liquid injection port in each of the liquid storage containers. A second fitting unit is provided around a liquid pour-out port in each of the liquid refilling containers. The second fitting unit is fitted to the first fitting unit to enable the liquid to be delivered from the liquid pour-out port to the liquid injection port.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: October 1, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kyoshiro Okude, Masateru Komori, Masato Koshimizu, Tsuyoshi Saeki, Yukimichi Kimura, Masahiro Kawanishi, Masaaki Matsuura, Katsuyuki Yokoi, Akira Shiba, Ryo Shimamura, Kazuya Yoshii, Norihiro Ikebe, Takeho Miyashita, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
  • Patent number: 10399346
    Abstract: A liquid container unit includes: a liquid container including: a plurality of liquid storage portions; and a plurality of injection ports which are provided to the respective plurality of liquid storage portions, and are configured to enable injection of liquid into the plurality of liquid storage portions; and an injection port cover which is provided to the liquid container so as to be rotatable and is configured to cover the plurality of injection ports so as to be openable and closable, the injection port cover including a plurality of stopper members configured to close the plurality of injection ports when the injection port cover is closed.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: September 3, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Atsushi Arai, Tomoki Yamamuro, Tatsuaki Orihara, Takeho Miyashita, Kazuya Yoshii, Norihiro Ikebe, Akira Shiba, Ryo Shimamura, Masatoshi Ohira, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
  • Patent number: 10399347
    Abstract: A liquid supplying mechanism includes: a tank including a liquid storage section configured to store a liquid, and a liquid injection port configured to inject the liquid into the liquid storage section; and a bottle configured to replenish the liquid into the tank. The bottle includes: a bottle section configured to store the liquid; and a protruding section, which protrudes from the bottle section, and is insertable into the liquid injection port so as to inject, into the liquid storage section, the liquid stored in the bottle section. The liquid injection port includes: a protruding section insertion portion into which the protruding section of the bottle is insertable; and a protruding section fixing portion, which is engageable with the protruding section of the bottle, to thereby be capable of fixing the bottle to the tank.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: September 3, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takeho Miyashita, Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Norihiro Ikebe, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
  • Patent number: 10369797
    Abstract: Provided is an inkjet printing apparatus capable of performing preliminary discharge without the influence of mist while suppressing degradation in throughput regardless of a preliminary discharge time. Specifically, an inkjet printing apparatus that performs a wiping operation on a nozzle arrangement surface provided with nozzles discharging an ink in a print head includes a wiping determination unit that determines whether to perform the wiping operation before preliminary discharge based on the amount of the preliminary discharge to be performed.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: August 6, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shin Genta, Masaya Uetsuki, Toshimitsu Danzuka, Kazuo Suzuki, Yoshinori Nakagawa, Masataka Kato, Tsuyoshi Ibe, Tomoki Yamamuro
  • 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
  • Patent number: 10350893
    Abstract: An inkjet printing apparatus includes a head, a platen, a platen absorbent that temporarily stores ink ejected from the head, a waste ink storage container that stores the ink discharged from the platen absorbent, and an estimation unit that, in a case where the platen is divided into a plurality of regions in a direction intersecting a conveyance direction of the printing medium, estimates an amount of ink stored in the waste ink storage container based on a position of a region to which the ink is ejected by the head and an amount of ink ejected to the region.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: July 16, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshinori Nakagawa, Atsushi Arai, Masaya Uetsuki, Toshimitsu Danzuka, Kazuo Suzuki, Masataka Kato, Tsuyoshi Ibe, Shin Genta, Tatsuaki Orihara, Tomoki Yamamuro