Patents by Inventor Koki SHIMADA

Koki SHIMADA 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: 20260192569
    Abstract: Disclosed is a recording apparatus including a tank configured to store liquid to be supplied to a recording head that ejects the liquid, the tank including an inlet port for liquid injection; a cap unit including a shaft portion and a cap configured to turn about the shaft portion between a first position at which the cap caps the inlet port and a second position at which the cap does not cap the inlet port, the shaft portion being provided to a housing that encloses the tank; and a biasing unit configured to bias the cap unit in a direction to move the cap apart from the inlet port, wherein the cap unit does not move at the second position while being biased by the biasing unit.
    Type: Application
    Filed: February 26, 2026
    Publication date: July 9, 2026
    Inventors: TSUYOSHI SAEKI, HIDEAKI MATSUMURA, YURI MORI, KEN TAKENAGA, SHOTA ASADA, KOKI SHIMADA, DAIJU TAKEDA, HIROMASA TSUTSUMI, MINEYOSHI TOMIE
  • Publication number: 20260184079
    Abstract: A waste ink tank including a container portion that is substantially box-shaped and is provided with an insertion port, into which a discharge member discharging waste ink can be inserted and pulled out from, and a shielding portion movable between a shielding position where the insertion port is shielded and an open position where the insertion port is opened. The insertion port is provided on a side surface of the box-shaped container portion.
    Type: Application
    Filed: February 19, 2026
    Publication date: July 2, 2026
    Inventors: KOKI SHIMADA, TOSHIAKI SOMANO, YUTA ARAKI, KAORI KATAYAMA, YUSUKE TANAKA, TETSU HAMANO, ERIKA IYAMA, FUMIE KAMEYAMA, NOBUHIRO TOKI, YASUYUKI TAKANAKA, DAIJU TAKEDA
  • Patent number: 12643329
    Abstract: Disclosed is a recording apparatus including a tank configured to store liquid to be supplied to a recording head that ejects the liquid, the tank including an inlet port for liquid injection; a cap unit including a shaft portion and a cap configured to turn about the shaft portion between a first position at which the cap caps the inlet port and a second position at which the cap does not cap the inlet port, the shaft portion being provided to a housing that encloses the tank; and a biasing unit configured to bias the cap unit in a direction to move the cap apart from the inlet port, wherein the cap unit does not move at the second position while being biased by the biasing unit.
    Type: Grant
    Filed: September 28, 2023
    Date of Patent: June 2, 2026
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsuyoshi Saeki, Hideaki Matsumura, Yuri Mori, Ken Takenaga, Shota Asada, Koki Shimada, Daiju Takeda, Hiromasa Tsutsumi, Mineyoshi Tomie
  • Patent number: 12617211
    Abstract: Disclosed is a recording apparatus including a tank configured to store liquid to be supplied to a recording head that ejects the liquid, the tank including an inlet port for liquid injection; a cap unit including a shaft portion and a cap configured to turn about the shaft portion between a first position at which the cap caps the inlet port and a second position at which the cap does not cap the inlet port, the shaft portion being provided to a housing that encloses the tank; and a biasing unit configured to bias the cap unit in a direction to move the cap apart from the inlet port, wherein the cap unit does not move at the second position while being biased by the biasing unit.
    Type: Grant
    Filed: September 28, 2023
    Date of Patent: May 5, 2026
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsuyoshi Saeki, Hideaki Matsumura, Yuri Mori, Ken Takenaga, Shota Asada, Koki Shimada, Daiju Takeda, Hiromasa Tsutsumi, Mineyoshi Tomie
  • Patent number: 12576645
    Abstract: A waste ink tank including a container portion that is substantially box-shaped and is provided with an insertion port, into which a discharge member discharging waste ink can be inserted and pulled out from, and a shielding portion movable between a shielding position where the insertion port is shielded and an open position where the insertion port is opened. The insertion port is provided on a side surface of the box-shaped container portion.
    Type: Grant
    Filed: September 11, 2023
    Date of Patent: March 17, 2026
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koki Shimada, Toshiaki Somano, Yuta Araki, Kaori Katayama, Yusuke Tanaka, Tetsu Hamano, Erika Iyama, Fumie Kameyama, Nobuhiro Toki, Yasuyuki Takanaka, Daiju Takeda
  • Publication number: 20260034792
    Abstract: An inkjet printing apparatus includes an ink tank that contains an ink to be supplied to a printing head that ejects the ink, the ink being injected from an ink bottle. The inkjet printing apparatus further includes an injection assistance member including a first passage and a second passage. The first passage is defined by a first upper end portion opening toward the outside of the ink tank and a first lower end portion opening toward the inside of the ink tank. The second passage is defined by a second upper end portion opening toward the outside of the ink tank and projecting upward less than the first upper end portion and a second lower end portion opening toward the inside of the ink tank and larger than the first lower end portion in terms of a distance from the bottom surface of the ink tank.
    Type: Application
    Filed: October 14, 2025
    Publication date: February 5, 2026
    Inventors: Yuta Araki, Kosuke Umehara, Koki Shimada
  • Publication number: 20250388022
    Abstract: A recording apparatus includes a conveyance unit that conveys a recording medium in a first direction toward a recording head for ejecting a liquid, a tank including a containing chamber containing the liquid to be supplied to the recording head, and an injection port through which the liquid is injected into the containing chamber, the tank being disposed downstream of the conveyance unit in the first direction, a rotatable lever that holds a tank cap for closing the injection port, and a cover that rotates about a rotation shaft between an open position for exposing the lever and a closed position for covering the lever, the rotation shaft being disposed upstream of the conveyance unit in the first direction. The cover includes a sliding portion that is provided on a surface facing the lever and comes into contact with the lever while the cover is rotating toward the closed position.
    Type: Application
    Filed: August 29, 2025
    Publication date: December 25, 2025
    Inventors: Taiji Maruyama, Koya Iwakura, Hideaki Matsumura, Tetsu Hamano, Nobuhiro Toki, Daiju Takeda, Fumie Kameyama, Koki Shimada, Shota Asada, Ken Takenaga, Yusuke Tanaka, Yuta Araki, Atsushi Matsuyama, Yusuke Naratani, Kousuke Tanaka
  • Publication number: 20250367934
    Abstract: A printing apparatus including a printhead for printing by discharging ink, comprising an output unit for outputting waste ink discharged from the printhead, and a container which can inserted in or removed from an apparatus main body, the container being connected to the output unit and receiving the waste ink output from the output unit in a state where the container is inserted into the apparatus main body, the output unit including a channel portion for deriving the waste ink, the channel portion engaging with the container to position the container inserted into the apparatus main body, and the channel portion being configured to not to come into surface contact with the container at the time of insertion or removal of the container.
    Type: Application
    Filed: May 28, 2025
    Publication date: December 4, 2025
    Inventors: NOBUHIRO TOKI, ERIKA IYAMA, YUSUKE TANAKA, HIROMASA TSUTSUMI, YUSUKE NARATANI, KOKI SHIMADA, FUMIE KAMEYAMA, MOTONORI HITOMI, TAIJI MARUYAMA, HIDEAKI MATSUMURA
  • Publication number: 20250367936
    Abstract: A printing apparatus includes a liquid container. The liquid container includes a storage portion configured to store a liquid to be supplied to a discharge head that discharges the liquid, a first channel configured to be inserted into a replenishing bottle, which is configured to replenish the liquid to the storage portion, and to communicate with the replenishing bottle, and a second channel between the first channel and the storage portion, the second channel including, at an end portion on a side of the first channel, a first shape portion having a sectional shape common to a part of a sectional shape of the first channel.
    Type: Application
    Filed: August 12, 2025
    Publication date: December 4, 2025
    Inventors: KOKI SHIMADA, HIDEAKI MATSUMURA, YURI MORI, TSUYOSHI SAEKI, KEN TAKENAGA, DAIJU TAKEDA, SHOTA ASADA, HIROMASA TSUTSUMI, MINEYOSHI TOMIE, TAKAO KAWAI, MEGUMI UETA, ERIKA IYAMA
  • Publication number: 20250360720
    Abstract: A printing apparatus includes a support member configured to support a printhead that performs printing by discharging ink to a print medium, a connecting member including a connecting portion connected to an ink introduction portion of the printhead and through which the ink introduction portion communicates with an ink supply passage via the connecting portion, a rotation member configured to hold the connecting member such that a posture of the connecting member is changeable, and configured to be supported by the support member to be rotatable between a connecting position at which the ink introduction portion and the connecting portion are connected and a connection releasing position at which the ink introduction portion and the connecting portion are not connected, and a biasing portion configured to bias the connecting member to a first posture with respect to the rotation member.
    Type: Application
    Filed: August 12, 2025
    Publication date: November 27, 2025
    Inventors: HIROMASA TSUTSUMI, HIDEAKI MATSUMURA, TSUYOSHI SAEKI, YURI MORI, KOKI SHIMADA, SHOTA ASADA, KEN TAKENAGA, DAIJU TAKEDA, MINEYOSHI TOMIE
  • Patent number: 12466190
    Abstract: An inkjet printing apparatus includes an ink tank that contains an ink to be supplied to a printing head that ejects the ink, the ink being injected from an ink bottle. The inkjet printing apparatus further includes an injection assistance member including a first passage and a second passage. The first passage is defined by a first upper end portion opening toward the outside of the ink tank and a first lower end portion opening toward the inside of the ink tank. The second passage is defined by a second upper end portion opening toward the outside of the ink tank and projecting upward less than the first upper end portion and a second lower end portion opening toward the inside of the ink tank and larger than the first lower end portion in terms of a distance from the bottom surface of the ink tank.
    Type: Grant
    Filed: November 16, 2023
    Date of Patent: November 11, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuta Araki, Kosuke Umehara, Koki Shimada
  • Publication number: 20250340062
    Abstract: A liquid discharge apparatus includes a liquid container and an operating member. The liquid container is configured to introduce liquid from a liquid introducing portion to an inside. The operating member is configured to rotate around a rotation shaft in a first direction from a first position for covering the liquid introducing portion to move to a second position for exposing the liquid introducing portion, and rotate in a second direction opposite to the first direction from the second position to move to the first position. The operating member includes a plug member and a covering portion. The plug member is retained to the operating member by a retaining member and configured to plug the liquid introducing portion at the first position. The covering portion is configured to cover the plug member in a direction intersecting with the first direction.
    Type: Application
    Filed: July 10, 2025
    Publication date: November 6, 2025
    Inventors: DAIJU TAKEDA, YURI MORI, TSUYOSHI SAEKI, HIDEAKI MATSUMURA, HIROMASA TSUTSUMI, SHOTA ASADA, KOKI SHIMADA, KEN TAKENAGA, MINEYOSHI TOMIE
  • Publication number: 20250319702
    Abstract: An ink tank that enables to check whether a cover of an ink tank is normally bonded to the ink tank includes a first chamber having a supply port for supplying ink to a printing head that ejects ink, a second chamber having an external air introduction port capable of introducing external air, a partition wall configured to separate the first chamber and the second chamber, a communication path provided in the partition wall and configured to place the first chamber and the second chamber in communication with each other, a first cover member configured to cover an opening of the first chamber without extending over an opening of the second chamber, and a second cover member configured to cover the opening of the second chamber without extending over the opening of the first chamber.
    Type: Application
    Filed: June 25, 2025
    Publication date: October 16, 2025
    Inventors: Koki Shimada, Hideaki Matsumura, Masaya Shimmachi, Yukimichi Kimura, Junichi Kubokawa, Takahiro Kiuchi, Yusuke Tanaka, Kyohei Sato
  • Publication number: 20250313008
    Abstract: A liquid ejection apparatus includes a first liquid storage container, a second liquid storage container, a first terminal member, a second terminal member, and a circuit board. The first liquid storage container stores liquid to be supplied to a liquid ejection head that ejects the liquid to an ejection medium. The second liquid storage container is arranged side by side in a first direction with respect to the first liquid storage container. The first terminal member comes into contact with the liquid stored within the first liquid storage container. The second terminal member comes into contact with liquid stored within the second liquid storage container. The circuit board comes into contact with the first terminal member and the second terminal member and relatively moves in the first direction with respect to the first liquid storage container.
    Type: Application
    Filed: June 18, 2025
    Publication date: October 9, 2025
    Inventors: HIDEAKI MATSUMURA, TSUYOSHI SAEKI, YURI MORI, KEN TAKENAGA, SHOTA ASADA, KOKI SHIMADA, DAIJU TAKEDA, HIROMASA TSUTSUMI, MINEYOSHI TOMIE
  • Patent number: 12427778
    Abstract: A recording apparatus includes a conveyance unit that conveys a recording medium in a first direction toward a recording head for ejecting a liquid, a tank including a containing chamber containing the liquid to be supplied to the recording head, and an injection port through which the liquid is injected into the containing chamber, the tank being disposed downstream of the conveyance unit in the first direction, a rotatable lever that holds a tank cap for closing the injection port, and a cover that rotates about a rotation shaft between an open position for exposing the lever and a closed position for covering the lever, the rotation shaft being disposed upstream of the conveyance unit in the first direction. The cover includes a sliding portion that is provided on a surface facing the lever and comes into contact with the lever while the cover is rotating toward the closed position.
    Type: Grant
    Filed: November 13, 2023
    Date of Patent: September 30, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Taiji Maruyama, Koya Iwakura, Hideaki Matsumura, Tetsu Hamano, Nobuhiro Toki, Daiju Takeda, Fumie Kameyama, Koki Shimada, Shota Asada, Ken Takenaga, Yusuke Tanaka, Yuta Araki, Atsushi Matsuyama, Yusuke Naratani, Kousuke Tanaka
  • Patent number: 12420554
    Abstract: A printing apparatus includes a liquid container. The liquid container includes a storage portion configured to store a liquid to be supplied to a discharge head that discharges the liquid, a first channel configured to be inserted into a replenishing bottle, which is configured to replenish the liquid to the storage portion, and to communicate with the replenishing bottle, and a second channel between the first channel and the storage portion, the second channel including, at an end portion on a side of the first channel, a first shape portion having a sectional shape common to a part of a sectional shape of the first channel.
    Type: Grant
    Filed: June 1, 2023
    Date of Patent: September 23, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koki Shimada, Hideaki Matsumura, Yuri Mori, Tsuyoshi Saeki, Ken Takenaga, Daiju Takeda, Shota Asada, Hiromasa Tsutsumi, Mineyoshi Tomie, Takao Kawai, Megumi Ueta, Erika Iyama
  • Patent number: 12397557
    Abstract: A printing apparatus includes a support member configured to support a printhead that performs printing by discharging ink to a print medium, a connecting member including a connecting portion connected to an ink introduction portion of the printhead and through which the ink introduction portion communicates with an ink supply passage via the connecting portion, a rotation member configured to hold the connecting member such that a posture of the connecting member is changeable, and configured to be supported by the support member to be rotatable between a connecting position at which the ink introduction portion and the connecting portion are connected and a connection releasing position at which the ink introduction portion and the connecting portion are not connected, and a biasing portion configured to bias the connecting member to a first posture with respect to the rotation member.
    Type: Grant
    Filed: April 26, 2023
    Date of Patent: August 26, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiromasa Tsutsumi, Hideaki Matsumura, Tsuyoshi Saeki, Yuri Mori, Koki Shimada, Shota Asada, Ken Takenaga, Daiju Takeda, Mineyoshi Tomie
  • Patent number: 12384164
    Abstract: A liquid discharge apparatus includes a liquid container and an operating member. The liquid container is configured to introduce liquid from a liquid introducing portion to an inside. The operating member is configured to rotate around a rotation shaft in a first direction from a first position for covering the liquid introducing portion to move to a second position for exposing the liquid introducing portion, and rotate in a second direction opposite to the first direction from the second position to move to the first position. The operating member includes a plug member and a covering portion. The plug member is retained to the operating member by a retaining member and configured to plug the liquid introducing portion at the first position. The covering portion is configured to cover the plug member in a direction intersecting with the first direction.
    Type: Grant
    Filed: March 3, 2023
    Date of Patent: August 12, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Daiju Takeda, Yuri Mori, Tsuyoshi Saeki, Hideaki Matsumura, Hiromasa Tsutsumi, Shota Asada, Koki Shimada, Ken Takenaga, Mineyoshi Tomie
  • Patent number: 12365183
    Abstract: An ink tank that enables to check whether a cover of an ink tank is normally bonded to the ink tank includes a first chamber having a supply port for supplying ink to a printing head that ejects ink, a second chamber having an external air introduction port capable of introducing external air, a partition wall configured to separate the first chamber and the second chamber, a communication path provided in the partition wall and configured to place the first chamber and the second chamber in communication with each other, a first cover member configured to cover an opening of the first chamber without extending over an opening of the second chamber, and a second cover member configured to cover the opening of the second chamber without extending over the opening of the first chamber.
    Type: Grant
    Filed: June 12, 2023
    Date of Patent: July 22, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koki Shimada, Hideaki Matsumura, Masaya Shimmachi, Yukimichi Kimura, Junichi Kubokawa, Takahiro Kiuchi, Yusuke Tanaka, Kyohei Sato
  • Patent number: RE50645
    Abstract: There is provided an ink jet recording apparatus capable of preventing a user from erroneously performing an opening and closing operation of a valve in the supply of ink to a recording head from an ink tank.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: October 21, 2025
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideaki Matsumura, Koki Shimada, Yusuke Tanaka, Takahiro Kiuchi, Masaya Shimmachi, Yukimichi Kimura, Junichi Kubokawa, Kyohei Sato