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: 20250033361Abstract: To provide a printing apparatus capable of maintaining ejection performance without increasing the size of a recovery unit. The printing apparatus includes: a cap capable of covering an ejection port surface having an ejection port formed therein to eject a liquid; a cap holding portion that movably holds the cap between a position where the cap contacts the ejection port surface and a position where the cap does not contact the ejection port surface; a suction unit capable of sucking the liquid from the cap; a collection unit for collecting the liquid sucked by the suction unit; a first channel connecting the cap and the suction unit; and a second channel connecting the suction unit and the collection unit. In top view, a part of the first channel and a part of the second channel are disposed at positions overlapping with the cap holding portion.Type: ApplicationFiled: July 20, 2024Publication date: January 30, 2025Inventors: KOKI SHIMADA, FUMIE KAMEYAMA, YUSUKE TANAKA, TETSU HAMANO
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Publication number: 20250010625Abstract: An inkjet recording apparatus includes an ink tank including an ink storage chamber configured to store ink to be supplied to a recording head configured to discharge ink. An injection portion is provided through which ink is injected from an ink bottle into the ink storage chamber. An ink reception portion is configured to receive ink inside the injection portion. A communication portion is configured to communicate with the ink storage chamber inside the injection portion. A guide portion is configured to guide ink received by the ink reception portion to the communication portion.Type: ApplicationFiled: September 18, 2024Publication date: January 9, 2025Inventor: Koki Shimada
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Patent number: 12187042Abstract: 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: GrantFiled: October 11, 2023Date of Patent: January 7, 2025Assignee: Canon Kabushiki KaishaInventors: 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: 20250001760Abstract: A liquid discharge apparatus includes a suction unit configured to suction liquid from a discharge head configured to discharge liquid, and a tank that includes an introduction portion into which liquid suctioned by the suction unit is introduced, and is detachable from the liquid discharge apparatus, wherein the tank includes a retaining portion configured to retain liquid that has dripped from the introduction portion.Type: ApplicationFiled: June 24, 2024Publication date: January 2, 2025Inventors: YUSUKE TANAKA, KOKI SHIMADA, FUMIE KAMEYAMA, TETSU HAMANO
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Patent number: 12162286Abstract: 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: GrantFiled: September 22, 2022Date of Patent: December 10, 2024Assignee: Canon Kabushiki KaishaInventors: 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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Patent number: 12129568Abstract: A surface-treated steel sheet includes a steel sheet, and an Ni—Co—Fe alloy layer containing Ni, Co, and Fe on the steel sheet surface. In the thickness direction of the Ni—Co—Fe alloy layer, a Co concentration in the Ni—Co—Fe alloy layer is highest at a position which is on an outermost surface side of the Ni—Co—Fe alloy layer relative to a position where the Ni concentration is highest in the Ni—Co—Fe alloy layer, and which is between the outermost surface of the Ni—Co—Fe alloy layer and a depth of 100 nm from the outermost surface. In the Ni—Co—Fe alloy layer, an Ni-concentrated region in which the Ni concentration increases toward the outermost surface of the Ni—Co—Fe alloy layer is formed between the outermost surface of the Ni—Co—Fe alloy layer and the position where the Co concentration is highest.Type: GrantFiled: November 29, 2021Date of Patent: October 29, 2024Assignee: NIPPON STEEL CORPORATIONInventors: Yasuto Goto, Kosuke Kawamoto, Yuta Dairokuno, Yuji Kajii, Koki Shimada
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Patent number: 12122165Abstract: An inkjet recording apparatus includes an ink tank including an ink storage chamber configured to store ink to be supplied to a recording head configured to discharge ink. An injection portion is provided through which ink is injected from an ink bottle into the ink storage chamber. An ink reception portion is configured to receive ink inside the injection portion. A communication portion is configured to communicate with the ink storage chamber inside the injection portion. A guide portion is configured to guide ink received by the ink reception portion to the communication portion.Type: GrantFiled: July 19, 2023Date of Patent: October 22, 2024Assignee: CANON KABUSHIKI KAISHAInventor: Koki Shimada
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Patent number: 12036796Abstract: 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: GrantFiled: September 30, 2021Date of Patent: July 16, 2024Assignee: Canon Kabushiki KaishaInventors: 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: 20240183013Abstract: A surface-treated steel sheet is provided that has excellent strength even when the surface-treated steel sheet is provided with a Ni—Co—Fe alloy layer. A surface-treated steel sheet of the present disclosure includes a steel sheet, and a Ni—Co—Fe alloy layer on a steel sheet surface. The steel sheet has a microstructure containing: ferrite, and one or more kinds selected from the group consisting of cementite, pearlite, and bainite having an area fraction of 1.2 to 5.0% in total. The Ni—Co—Fe alloy layer contains Ni, Co and Fe.Type: ApplicationFiled: March 31, 2022Publication date: June 6, 2024Applicant: NIPPON STEEL CORPORATIONInventors: Kosuke KAWAMOTO, Yasuto GOTO, Masaharu OKA, Yuta DAIROKUNO, Yuji KAJII, Koki SHIMADA
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Publication number: 20240109331Abstract: 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: ApplicationFiled: September 28, 2023Publication date: April 4, 2024Inventors: TSUYOSHI SAEKI, HIDEAKI MATSUMURA, YURI MORI, KEN TAKENAGA, SHOTA ASADA, KOKI SHIMADA, DAIJU TAKEDA, HIROMASA TSUTSUMI, MINEYOSHI TOMIE
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Publication number: 20240109332Abstract: 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: December 26, 2023Publication date: April 4, 2024Inventors: 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: 20240092084Abstract: A technique capable of certainly suppressing adhesion of waste ink to hands, clothes, and the like during replacement of a waste ink tank is provided. There are included a container portion provided with an insertion port which a discharge member discharging waste ink can be inserted into 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.Type: ApplicationFiled: September 11, 2023Publication date: March 21, 2024Inventors: KOKI SHIMADA, TOSHIAKI SOMANO, YUTA ARAKI, KAORI KATAYAMA, YUSUKE TANAKA, TETSU HAMANO, ERIKA IYAMA, FUMIE KAMEYAMA, NOBUHIRO TOKI, YASUYUKI TAKANAKA, DAIJU TAKEDA
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Patent number: 11932021Abstract: 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: December 20, 2022Date of Patent: March 19, 2024Assignee: 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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Publication number: 20240083175Abstract: 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: ApplicationFiled: April 26, 2023Publication date: March 14, 2024Inventors: HIROMASA TSUTSUMI, HIDEAKI MATSUMURA, TSUYOSHI SAEKI, YURI MORI, KOKI SHIMADA, SHOTA ASADA, KEN TAKENAGA, DAIJU TAKEDA, MINEYOSHI TOMIE
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Publication number: 20240083174Abstract: 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: November 16, 2023Publication date: March 14, 2024Inventors: Yuta Araki, Kosuke Umehara, Koki Shimada
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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: 20240042769Abstract: 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: October 11, 2023Publication date: February 8, 2024Inventors: 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: 20230405995Abstract: 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: ApplicationFiled: June 1, 2023Publication date: December 21, 2023Inventors: KOKI SHIMADA, HIDEAKI MATSUMURA, YURI MORI, TSUYOSHI SAEKI, KEN TAKENAGA, DAIJU TAKEDA, SHOTA ASADA, HIROMASA TSUTSUMI, MINEYOSHI TOMIE, TAKAO KAWAI, MEGUMI UETA, ERIKA IYAMA
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Publication number: 20230407509Abstract: A surface-treated steel sheet of the present disclosure includes a steel sheet, and an alloy layer containing Ni and Co on a surface of the steel sheet. A surface roughness Ra1 of the surface of the alloy layer over a sampling length of 5.0 mm in the width direction of the steel sheet is 2.0 ?m or less. Ra2 that denotes the arithmetic mean height of a roughness curve of the surface of the alloy layer over a sampling length of 10 ?m in the width direction of the steel sheet is 20 nm or less, and RSm that denotes the mean length of roughness curve elements over the sampling length of 10 ?m in the width direction of the steel sheet is 700 nm or more, Ra2 and RSm being measured using an atomic force microscope.Type: ApplicationFiled: November 29, 2021Publication date: December 21, 2023Applicant: NIPPON STEEL CORPORATIONInventors: Kosuke KAWAMOTO, Yasuto GOTO, Yuta DAIROKUNO, Koki SHIMADA
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Publication number: 20230407510Abstract: A surface-treated steel sheet includes a steel sheet, and an Ni—Co—Fe alloy layer containing Ni, Co, and Fe on the steel sheet surface. In the thickness direction of the Ni—Co—Fe alloy layer, a Co concentration in the Ni—Co—Fe alloy layer is highest at a position which is on an outermost surface side of the Ni—Co—Fe alloy layer relative to a position where the Ni concentration is highest in the Ni—Co—Fe alloy layer, and which is between the outermost surface of the Ni—Co—Fe alloy layer and a depth of 100 nm from the outermost surface. In the Ni—Co—Fe alloy layer, an Ni-concentrated region in which the Ni concentration increases toward the outermost surface of the Ni—Co—Fe alloy layer is formed between the outermost surface of the Ni—Co—Fe alloy layer and the position where the Co concentration is highest.Type: ApplicationFiled: November 29, 2021Publication date: December 21, 2023Applicant: NIPPON STEEL CORPORATIONInventors: Yasuto GOTO, Kosuke KAWAMOTO, Yuta DAIROKUNO, Yuji KAJII, Koki SHIMADA