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).
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Publication number: 20230127454Abstract: A recording apparatus includes a tank including a chamber configured to store liquid to be supplied to a recording head that ejects the liquid and a filling port from which the liquid is injected into the chamber, and an injection auxiliary member configured to assist injecting of the liquid into the chamber from the filling port, the injection auxiliary member including a first and a second flow channels each defined by a first or a second upper end portion that opens toward outside of the tank and a first or a second lower end portion that opens toward inside of the tank, wherein the second flow channel has an expansion portion arranged in a middle portion between the second upper end portion and the second lower end portion and configured to form a step to expand a cross-sectional area.Type: ApplicationFiled: December 20, 2022Publication date: April 27, 2023Inventors: Yusuke Naratani, Koya Iwakura, Hideaki Matsumura, Tetsu Hamano, Nobuhiro Toki, Daiju Takeda, Fumie Kameyama, Koki Shimada, Shota Asada, Ken Takenaga, Yusuke Tanaka, Yuta Araki, Taiji Maruyama, Atsushi Matsuyama, Kousuke Tanaka, Toshimitsu Takahashi, Nanae Uchinuno
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Patent number: 11633954Abstract: 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: GrantFiled: July 22, 2021Date of Patent: April 25, 2023Assignee: Canon Kabushiki KaishaInventors: 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
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Publication number: 20230114455Abstract: 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: ApplicationFiled: October 11, 2022Publication date: April 13, 2023Inventors: Yuta Araki, Kosuke Umehara, Koki Shimada
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Publication number: 20230094421Abstract: A recording apparatus includes a recording head having discharge orifices arranged on a discharge orifice surface, a cap, a wiper, and a moving unit that moves the wiper in a first direction. When the cap covers the discharge orifice surface, a first member is disposed at an inside wall of the cap at a position near a first side of a region having the discharge orifices, and a second member is disposed at another inside wall of the cap at a position near a second side of the region having the discharge orifices. The first side faces in a direction opposite to the first direction and the second side faces in the first direction. In a direction normal to the discharge orifice surface, a distance between the second member and the discharge orifice surface is smaller than a distance between the first member and the discharge orifice surface.Type: ApplicationFiled: September 22, 2022Publication date: March 30, 2023Inventors: Hideaki Matsumura, Koya Iwakura, Tetsu Hamano, Nobuhiro Toki, Fumie Kameyama, Koki Shimada, Shota Asada, Ken Takenaga, Yusuke Tanaka, Yuta Araki, Taiji Maruyama, Atsushi Matsuyama, Yusuke Naratani, Kousuke Tanaka, Shimpei Fujisaki, Hiromasa Tsutsumi
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Publication number: 20230077676Abstract: An inkjet recording apparatus includes a recording head including an ejection port surface and a nozzle cover, wherein the ejection port surface includes an array of a plurality of ejection ports through which ink is to be ejected, and wherein the nozzle cover protrudes downward with respect to the ejection port surface and is disposed on an outer side of the ejection port surface, a wiper unit capable of wiping the ejection port surface and the nozzle cover, and a moving mechanism configured to move the wiper unit relative to the ejection port surface, wherein the wiper unit has a notch at a position at which the notch faces a first step portion between the ejection port surface and the nozzle cover when the wiper unit performs wiping while the wiper unit is moved by the moving mechanism.Type: ApplicationFiled: November 16, 2022Publication date: March 16, 2023Inventor: Koki Shimada
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Patent number: 11535035Abstract: A recording apparatus includes a tank including a chamber configured to store liquid to be supplied to a recording head that ejects the liquid and a filling port from which the liquid is injected into the chamber, and an injection auxiliary member configured to assist injecting of the liquid into the chamber from the filling port, the injection auxiliary member including a first and a second flow channels each defined by a first or a second upper end portion that opens toward outside of the tank and a first or a second lower end portion that opens toward inside of the tank, wherein the second flow channel has an expansion portion arranged in a middle portion between the second upper end portion and the second lower end portion and configured to form a step to expand a cross-sectional area.Type: GrantFiled: July 29, 2021Date of Patent: December 27, 2022Assignee: Canon Kabushiki KaishaInventors: Yusuke Naratani, Koya Iwakura, Hideaki Matsumura, Tetsu Hamano, Nobuhiro Toki, Daiju Takeda, Fumie Kameyama, Koki Shimada, Shota Asada, Ken Takenaga, Yusuke Tanaka, Yuta Araki, Taiji Maruyama, Atsushi Matsuyama, Kousuke Tanaka, Toshimitsu Takahashi, Nanae Uchinuno
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Patent number: 11491796Abstract: 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: GrantFiled: March 30, 2020Date of Patent: November 8, 2022Assignee: Canon Kabushiki KaishaInventors: Yuta Araki, Kosuke Umehara, Koki Shimada
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Publication number: 20220111648Abstract: A recording apparatus includes a platen that supports a recording medium and is provided at a position facing a recording head, a holding container, detachably attached to the recording apparatus, that holds an absorber for absorbing and holding liquid discharged from the recording head, and a path member that is at least partly disposed under the platen and forms a path in which liquid flows, wherein the path member has a protrusion part configured to contact the absorber in a state where the holding container is attached to the recording apparatus.Type: ApplicationFiled: October 4, 2021Publication date: April 14, 2022Inventors: Atsushi Matsuyama, Koya Iwakura, Hideaki Matsumura, Tetsu Hamano, Nobuhiro Toki, Daiju Takeda, Fumie Kameyama, Koki Shimada, Shota Asada, Ken Takenaga, Yusuke Tanaka, Yuta Araki, Taiji Maruyama, Yusuke Naratani, Kousuke Tanaka
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Publication number: 20220111656Abstract: A liquid discharge apparatus includes a discharging unit configured to be capable of discharging a plurality of kinds of liquids onto a medium, and a waste liquid tank including a storage part configured to store a waste liquid of the liquid. The waste liquid tank includes a first inflow port and a second inflow port from which the waste liquid flows into the storage part, and a restriction portion located between the first inflow port and the second inflow port, and configured to restrict movement of the waste liquid in the storage part.Type: ApplicationFiled: September 30, 2021Publication date: April 14, 2022Inventors: Ken Takenaga, Koya Iwakura, Hideaki Matsumura, Tetsu Hamano, Nobuhiro Toki, Daiju Takeda, Fumie Kameyama, Koki Shimada, Shota Asada, Yusuke Tanaka, Yuta Araki, Taiji Maruyama, Atsushi Matsuyama, Yusuke Naratani, Kousuke Tanaka
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Publication number: 20220111652Abstract: A liquid discharge apparatus includes a first absorbent member extending in a discharge region to which a discharge unit capable of discharging a liquid onto a medium discharges liquid, and configured to be capable of accepting the liquid discharged from the discharge unit, a second absorbent member arranged spaced apart from the first absorbent member to accept liquid flowed out from the first absorbent member when the liquid discharge apparatus is inclined from a posture for use of the liquid discharge to a predetermined direction, and a positioning portion configured to position the second absorbent member at a position spaced apart from the first absorbent member.Type: ApplicationFiled: October 8, 2021Publication date: April 14, 2022Inventors: Yuta Araki, Koya lwakura, Hideaki Matsumura, Tetsu Hamano, Nobuhiro Toki, Daiju Takeda, Fumie Kameyama, Koki Shimada, Shota Asada, Ken Takenaga, Yusuke Tanaka, Taiji Maruyama, Atsushi Matsuyama, Yusuke Naratani, Kousuke Tanaka
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Publication number: 20220111650Abstract: A recording apparatus includes a recovery unit, a retaining container, and a first portion. The recovery unit performs recovery operation to recover a recording head to eject liquid. The retaining container is removably installed in the recording apparatus and retains liquid discharged from the recovery unit. The first portion comes in contact with a second portion on the retaining container. To put the retaining container into a restricted state in which movement of the retaining container in a first direction is restricted, the first portion comes in contact with the second portion in a middle of removal of the retaining container in the first direction from an installed state in which the retaining container is installed in the recording apparatus.Type: ApplicationFiled: October 1, 2021Publication date: April 14, 2022Inventors: Yusuke Tanaka, Koya Iwakura, Hideaki Matsumura, Tetsu Hamano, Nobuhiro Toki, Daiju Takeda, Fumie Kameyama, Koki Shimada, Shota Asada, Ken Takenaga, Yuta Araki, Taiji Maruyama, Atsushi Matsuyama, Yusuke Naratani, Kousuke Tanaka
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Publication number: 20220088948Abstract: An inkjet recording apparatus configured to perform recording operation by ejecting ink at least from a first recording head, includes an ink tank configured to contain the ink to be supplied to the first recording head, a tube configured to connect the first recording head and the ink tank, and a carriage including a first mounting portion on which the first recording head is mounted, a second mounting portion on which a second recording head is detachably mounted, and a contact portion electrically connected to the second recording head, and configured to reciprocate. A protection member protecting the contact portion can be detachably mounted on the second mounting portion.Type: ApplicationFiled: December 2, 2021Publication date: March 24, 2022Inventors: Yusuke Tanaka, Koki Shimada, Masateru Komori, Yuta Araki
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Publication number: 20220032629Abstract: 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: ApplicationFiled: July 22, 2021Publication date: February 3, 2022Inventors: 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
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Publication number: 20220032633Abstract: A printing apparatus includes a liquid storing container including a storage chamber configured to store a liquid supplied to a printing unit that prints an image by discharging the liquid, an outlet portion of the liquid, and a channel configured to connect the storage chamber and the outlet portion. The liquid storing container includes a first side portion on a side of a print region where printing is executed by the printing unit, and a second side portion on an opposite side of the first side portion, and the channel is formed in the second side portion.Type: ApplicationFiled: July 14, 2021Publication date: February 3, 2022Inventors: Koki SHIMADA, Nobuhiro TOKI, Daiju TAKEDA, Fumie KAMEYAMA, Shota ASADA, Ken TAKENAGA, Yusuke TANAKA, Yuta ARAKI, Taiji MARUYAMA, Atsushi MATSUYAMA, Yusuke NARATANI, Kousuke TANAKA, Koya IWAKURA, Hideaki MATSUMURA, Tetsu HAMANO
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Publication number: 20220032636Abstract: Provided is an image recording apparatus including: a carriage configured to support a recording head that ejects a liquid to a recording medium and configured to perform reciprocating motion in the scanning direction; a liquid containing portion configured to contain liquid; a tube configured to connect the recording head and the liquid containing portion to supply liquid from the liquid containing portion to the recording head, the tube including a first section that extends in the scanning direction and a second section that extends in the scanning direction above the first section; and a support portion configured to support the first section and be secured to an apparatus main body, and in the support portion, a rotating member is provided below the second section at a position facing the second section.Type: ApplicationFiled: July 26, 2021Publication date: February 3, 2022Inventors: Kousuke Tanaka, Koya Iwakura, Hideaki Matsumura, Tetsu Hamano, Nobuhiro Toki, Daiju Takeda, Fumie Kameyama, Koki Shimada, Shota Asada, Ken Takenaga, Yusuke Tanaka, Yuta Araki, Taiji Maruyama, Atsushi Matsuyama, Yusuke Naratani
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Publication number: 20220032632Abstract: A recording apparatus includes a tank including a chamber configured to store liquid to be supplied to a recording head that ejects the liquid and a filling port from which the liquid is injected into the chamber, and an injection auxiliary member configured to assist injecting of the liquid into the chamber from the filling port, the injection auxiliary member including a first and a second flow channels each defined by a first or a second upper end portion that opens toward outside of the tank and a first or a second lower end portion that opens toward inside of the tank, wherein the second flow channel has an expansion portion arranged in a middle portion between the second upper end portion and the second lower end portion and configured to form a step to expand a cross-sectional area.Type: ApplicationFiled: July 29, 2021Publication date: February 3, 2022Inventors: Yusuke Naratani, Koya Iwakura, Hideaki Matsumura, Tetsu Hamano, Nobuhiro Toki, Daiju Takeda, Fumie Kameyama, Koki Shimada, Shota Asada, Ken Takenaga, Yusuke Tanaka, Yuta Araki, Taiji Maruyama, Atsushi Matsuyama, Kousuke Tanaka, Toshimitsu Takahashi, Nanae Uchinuno
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Publication number: 20220016891Abstract: 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: ApplicationFiled: September 29, 2021Publication date: January 20, 2022Inventors: Koki Shimada, Hideaki Matsumura, Masaya Shimmachi, Yukimichi Kimura, Junichi Kubokawa, Takahiro Kiuchi, Yusuke Tanaka, Kyohei Sato
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Publication number: 20220009244Abstract: A print head includes a nozzle array comprising a plurality of nozzles, and a negative pressure generating portion configured to apply a negative pressure to the nozzle array. A tank includes a storage portion and an air communication port. A tube connects the print head and the tank and supply the liquid from the tank to the print head. A highest position of a liquid level in the tank in the vertical direction is higher than a position of the nozzle array, and an absolute value of a water head difference caused by a difference between the highest position of the liquid level in the tank and the position of the nozzle array is not larger than an absolute value of a negative pressure generated by the negative pressure generating portion.Type: ApplicationFiled: June 24, 2021Publication date: January 13, 2022Inventors: Hideaki Matsumura, Daiju Takeda, Tetsu Hamano, Nobuhiro Toki, Fumie Kameyama, Koki Shimada, Shota Asada, Ken Takenaga, Yusuke Tanaka, Yuta Araki, Taiji Maruyama, Atsushi Matsuyama, Yusuke Naratani, Kousuke Tanaka, Koya Iwakura
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Patent number: 11214086Abstract: An inkjet recording apparatus configured to perform recording operation by ejecting ink at least from a first recording head, includes an ink tank configured to contain the ink to be supplied to the first recording head, a tube configured to connect the first recording head and the ink tank, and a carriage including a first mounting portion on which the first recording head is mounted, a second mounting portion on which a second recording head is detachably mounted, and a contact portion electrically connected to the second recording head, and configured to reciprocate. A protection member protecting the contact portion can be detachably mounted on the second mounting portion.Type: GrantFiled: March 27, 2020Date of Patent: January 4, 2022Assignee: Canon Kabushiki KaishaInventors: Yusuke Tanaka, Koki Shimada, Masateru Komori, Yuta Araki
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Patent number: RE49336Abstract: The printing apparatus of the present invention includes: a print head; and a liquid storage container in which a liquid storage chamber that stores a liquid to be supplied to the print head, an atmosphere communication chamber that communicates with the atmosphere, and a communication flow path that causes the liquid storage chamber and the atmosphere communication chamber to communicate are formed integrally. The liquid storage container can take a first posture in which the atmosphere communication chamber is located under the liquid storage chamber in the direction of gravity and a second posture in which the atmosphere communication chamber and the liquid storage chamber are located side by side in the horizontal direction. In the case where the liquid storage container is in the second posture, the liquid injection portion and the communication flow path are located on the upper side of the liquid storage container.Type: GrantFiled: December 27, 2019Date of Patent: December 20, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Yukimichi Kimura, Takahiro Kiuchi, Junichi Kubokawa, Kyohei Sato, Koki Shimada, Masaya Shimmachi, Yusuke Tanaka, Hideaki Matsumura, Keiichiro Tsukuda, Tatsuo Nanjo