Patents by Inventor Junichi Kubokawa
Junichi Kubokawa 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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Patent number: 11912036Abstract: 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: GrantFiled: September 29, 2021Date of Patent: February 27, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Koki Shimada, Hideaki Matsumura, Masaya Shimmachi, Yukimichi Kimura, Junichi Kubokawa, Takahiro Kiuchi, Yusuke Tanaka, Kyohei Sato
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Publication number: 20230382673Abstract: A printing apparatus includes a printing unit, and first, second, and third conveyance paths. The printing unit performs printing at a printing position on a print medium conveyed in a conveyance direction. The first conveyance path causes the print medium to pass through the printing position of the printing unit. The second conveyance path reverses obverse and reverse surfaces of the print medium, and the third conveyance path reverses obverse and reverse surfaces of the print medium. The second conveyance path branches from the first conveyance path at a first branching point on a downstream side of the printing position in the conveyance direction and merges into the first conveyance path on an upstream side of the printing position. The third conveyance path branches from a second branching point on the second conveyance path and merges into the first conveyance path on the upstream side of the printing position.Type: ApplicationFiled: May 8, 2023Publication date: November 30, 2023Inventors: MOTOYUKI TAGUCHI, MASAAKI MATSUURA, NORIYUKI SUGIYAMA, JUNICHI KUBOKAWA, YASUNORI MATSUMOTO, YUMI MUKOYAMA, TAKAHIRO KIUCHI, KYOSUKE KAMISHIMA, HARUO UCHIDA, KEISEI HAKAMATA, TAKAAKI ISHIDA, SHOICHI KAN
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Publication number: 20230364927Abstract: A printing apparatus includes a supply unit, a supply path, first and second conveyance paths, a printing unit, and an inversion roller. The first conveyance path conveys, to a first direction, a print medium. The printing unit prints an image on the two surface of the print medium. The inversion roller inverts a conveyance direction of the print medium and conveys the print medium in a second direction. The second conveyance path conveys the print medium conveyed in the second direction to the first conveyance path while inverting the print medium. When performing printing on both sides of print media, the print media are convey such that a first print medium supplied from the second conveyance path and a second print medium supplied from the supply path overlap in the first conveyance path.Type: ApplicationFiled: April 27, 2023Publication date: November 16, 2023Inventors: MASAAKI MATSUURA, HARUO UCHIDA, SHOICHI KAN, TAKAAKI ISHIDA, KEISEI HAKAMATA, NORIYUKI SUGIYAMA, MOTOYUKI TAGUCHI, TAKAHIRO KIUCHI, YASUNORI MATSUMOTO, YUMI MUKOYAMA, JUNICHI KUBOKAWA, KYOSUKE KAMISHIMA
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Publication number: 20230339244Abstract: A printing apparatus includes a first conveyance path, a conveyance roller, a printing unit, a reverse roller provided at a position on a downstream side of the printing unit in a first direction, a second conveyance path configured to reverse the front and back of the print medium, and a control unit. In a case where a first print medium on which printing has been performed first is conveyed in a second direction via the second conveyance path, the control unit controls the conveyance roller and the reverse roller, such that a trailing edge of the first print medium in the second direction passes through the reverse roller before a second print medium conveyed by the conveyance roller subsequent to the first print medium reaches the reverse roller.Type: ApplicationFiled: April 25, 2023Publication date: October 26, 2023Inventors: JUNICHI KUBOKAWA, MASAAKI MATSUURA, HARUO UCHIDA, SHOICHI KAN, TAKAAKI ISHIDA, KEISEI HAKAMATA, NORIYUKI SUGIYAMA, MOTOYUKI TAGUCHI, TAKAHIRO KIUCHI, YASUNORI MATSUMOTO, YUMI MUKOYAMA, KYOSUKE KAMISHIMA
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Publication number: 20230311521Abstract: 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: June 12, 2023Publication date: October 5, 2023Inventors: Koki Shimada, Hideaki Matsumura, Masaya Shimmachi, Yukimichi Kimura, Junichi Kubokawa, Takahiro Kiuchi, Yusuke Tanaka, Kyohei Sato
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Publication number: 20230302831Abstract: A recording apparatus to record an image on a sheet includes a roller pair and a switching unit. The roller pair sandwiches the sheet between the roller pair to convey the sheet. The switching unit switches between a first state in which the roller pair sandwiches the sheet and a second state in which rollers of the roller pair are separated from each other. The switching unit includes a first movable member that is moved in a first direction so that the first state is switched to the second state, and includes a second movable member that is moved in a second direction different from the first direction so that the first state is switched to the second state.Type: ApplicationFiled: March 2, 2023Publication date: September 28, 2023Inventors: YUMI MUKOYAMA, MASAAKI MATSUURA, Noriyuki Sugiyama, MOTOYUKI TAGUCHI, JUNICHI KUBOKAWA, YASUNORI MATSUMOTO, KYOSUKE KAMISHIMA, TAKAHIRO KIUCHI, KEISEI HAKAMATA, HARUO UCHIDA, SHOICHI KAN, TAKAAKI ISHIDA
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Publication number: 20230294426Abstract: A printing apparatus includes a supply unit configured to supply a print medium, an intermediate roller configured to transport the print medium, a transport roller configured to transport the print medium, a printing unit configured to print an image on the print medium, a reversing path configured to return, to the intermediate roller, the print medium which has been reversed front to back, and a control unit capable of first control for causing a second print medium supplied from the supply unit to overlap a first print medium being printed onto by the printing unit, and second control for causing a second print medium transported from the reversing path to overlap the first print medium being printed onto by the printing unit.Type: ApplicationFiled: March 16, 2023Publication date: September 21, 2023Inventors: Noriyuki Sugiyama, MOTOYUKI TAGUCHI, Junichi Kubokawa, YASUNORI MATSUMOTO, YUMI MUKOYAMA, MASAAKI MATSUURA, TAKAHIRO KIUCHI, KEISEI HAKAMATA, Haruo Uchida, Shoichi Kan, TAKAAKI ISHIDA, KYOSUKE KAMISHIMA
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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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Patent number: 11167556Abstract: 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: GrantFiled: March 29, 2019Date of Patent: November 9, 2021Assignee: Canon Kabushiki KaishaInventors: Koki Shimada, Hideaki Matsumura, Masaya Shimmachi, Yukimichi Kimura, Junichi Kubokawa, Takahiro Kiuchi, Yusuke Tanaka, Kyohei Sato
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Patent number: 10625514Abstract: 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: GrantFiled: October 9, 2018Date of Patent: April 21, 2020Assignee: Canon Kabushiki KaishaInventors: Hideaki Matsumura, Koki Shimada, Yusuke Tanaka, Takahiro Kiuchi, Masaya Shimmachi, Yukimichi Kimura, Junichi Kubokawa, Kyohei Sato
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Publication number: 20190283437Abstract: 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: March 29, 2019Publication date: September 19, 2019Inventors: Koki Shimada, Hideaki Matsumura, Masaya Shimmachi, Yukimichi Kimura, Junichi Kubokawa, Takahiro Kiuchi, Yusuke Tanaka, Kyohei Sato
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Patent number: 10272688Abstract: 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: GrantFiled: October 27, 2016Date of Patent: April 30, 2019Assignee: Canon Kabushiki KaishaInventors: Koki Shimada, Hideaki Matsumura, Masaya Shimmachi, Yukimichi Kimura, Junichi Kubokawa, Takahiro Kiuchi, Yusuke Tanaka, Kyohei Sato
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Publication number: 20190039383Abstract: 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: ApplicationFiled: October 9, 2018Publication date: February 7, 2019Inventors: Hideaki Matsumura, Koki Shimada, Yusuke Tanaka, Takahiro Kiuchi, Masaya Shimmachi, Yukimichi Kimura, Junichi Kubokawa, Kyohei Sato
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Patent number: 10131154Abstract: 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: GrantFiled: October 26, 2016Date of Patent: November 20, 2018Assignee: Canon Kabushiki KaishaInventors: Hideaki Matsumura, Koki Shimada, Yusuke Tanaka, Takahiro Kiuchi, Masaya Shimmachi, Yukimichi Kimura, Junichi Kubokawa, Kyohei Sato
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Patent number: 10118396Abstract: 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: July 6, 2017Date of Patent: November 6, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Yukimichi Kimura, Takahiro Kiuchi, Junichi Kubokawa, Kyohei Sato, Koki Shimada, Masaya Shimmachi, Yusuke Tanaka, Hideaki Matsumura, Keiichiro Tsukuda, Tatsuo Nanjo
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Patent number: 10086617Abstract: The printing apparatus according to the present invention includes a carriage, a supply tube, a head set cover that moves to a first orientation at which the printing head is fixed to the carriage and a second orientation at which the printing head is attachable to or detachable from the carriage, and a joint unit that moves to a first position connected to the printing head and a second position separated from the printing head, wherein the joint unit does not move to the first position from the second position when the head set cover moves to the first orientation from the second orientation, and moves to the second position from the first position in cooperation with movement of the head set cover when the head set cover moves to the second orientation from the first orientation.Type: GrantFiled: October 27, 2016Date of Patent: October 2, 2018Assignee: Canon Kabushiki KaishaInventors: Masaya Shimmachi, Junichi Kubokawa, Hideaki Matsumura, Yukimichi Kimura, Takahiro Kiuchi, Koki Shimada, Yusuke Tanaka, Kyohei Sato
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Publication number: 20170305163Abstract: 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: ApplicationFiled: July 6, 2017Publication date: October 26, 2017Inventors: Yukimichi Kimura, Takahiro Kiuchi, Junichi Kubokawa, Kyohei Sato, Koki Shimada, Masaya Shimmachi, Yusuke Tanaka, Hideaki Matsumura, Keiichiro Tsukuda, Tatsuo Nanjo
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Patent number: 9738081Abstract: 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: October 18, 2016Date of Patent: August 22, 2017Assignee: CANON KABUSHIKI KAISHAInventors: Yukimichi Kimura, Takahiro Kiuchi, Junichi Kubokawa, Kyohei Sato, Koki Shimada, Masaya Shimmachi, Yusuke Tanaka, Hideaki Matsumura, Keiichiro Tsukuda, Tatsuo Nanjo
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Publication number: 20170120609Abstract: 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: ApplicationFiled: October 18, 2016Publication date: May 4, 2017Inventors: Yukimichi Kimura, Takahiro Kiuchi, Junichi Kubokawa, Kyohei Sato, Koki Shimada, Masaya Shimmachi, Yusuke Tanaka, Hideaki Matsumura, Keiichiro Tsukuda, Tatsuo Nanjo
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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