Patents by Inventor Yumi Mukoyama
Yumi Mukoyama 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: 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: 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: 20230202191Abstract: An inkjet printing apparatus includes a tank in which ink is contained; a print head for ejecting ink supplied from the tank to perform print operation; a supply flow path for supplying ink from the tank to the print head; a collection flow path for collecting ink from the print head to the tank; and a pump provided in the supply flow path or the collection flow path. The pump is driven, during print operation, at a first speed to circulate ink within a circulation path including the tank, the supply flow path, the print head, and the collection flow path, and the pump is driven, from a start of the ink circulation until a lapse of predetermined time period, at a second speed which is faster than the first speed.Type: ApplicationFiled: February 22, 2023Publication date: June 29, 2023Inventors: Junya Kosuge, Yumi Mukoyama, Toshiaki Tokisawa, Tsuyoshi Saeki, Takashi Abe
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Patent number: 11618264Abstract: An inkjet printing apparatus includes a tank in which ink is contained; a print head for ejecting ink supplied from the tank to perform print operation; a supply flow path for supplying ink from the tank to the print head; a collection flow path for collecting ink from the print head to the tank; and a pump provided in the supply flow path or the collection flow path. The pump is driven, during print operation, at a first speed to circulate ink within a circulation path including the tank, the supply flow path, the print head, and the collection flow path, and the pump is driven, from a start of the ink circulation until a lapse of predetermined time period, at a second speed which is faster than the first speed.Type: GrantFiled: March 2, 2021Date of Patent: April 4, 2023Assignee: Canon Kabushiki KaishaInventors: Junya Kosuge, Yumi Mukoyama, Toshiaki Tokisawa, Tsuyoshi Saeki, Takashi Abe
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Publication number: 20230081423Abstract: According to an aspect of the present invention, an inkjet printing apparatus includes a print head having an ejection opening surface on which ejection openings for ejecting ink are formed, a tank storing ink to be supplied to the print head, a supply flow path for supplying the ink from the tank to the print head, a collection flow path for collecting the ink from the print head to the tank, a supply pump provided in the supply flow path to supply the ink from the tank to the print head, a tank decompression pump which decompresses the inside of the tank, and a control unit which controls to drive the supply pump and the tank decompression pump to fill the collection flow path with ink.Type: ApplicationFiled: September 19, 2022Publication date: March 16, 2023Inventors: Toshiaki Tokisawa, Yumi Mukoyama, Kyoshiro Okude, Takashi Abe, Takahiro Kiuchi
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Patent number: 11577522Abstract: According to an aspect of the present invention, an inkjet printing apparatus includes a print head having an ejection opening surface on which ejection openings for ejecting ink are formed, a tank storing ink to be supplied to the print head, a supply flow path for supplying the ink from the tank to the print head, a collection flow path for collecting the ink from the print head to the tank, a supply pump provided in the supply flow path to supply the ink from the tank to the print head, a tank decompression pump which decompresses the inside of the tank, and a control unit which controls to drive the supply pump and the tank decompression pump to fill the collection flow path with ink.Type: GrantFiled: July 22, 2020Date of Patent: February 14, 2023Assignee: Canon Kabushiki KaishaInventors: Toshiaki Tokisawa, Yumi Mukoyama, Kyoshiro Okude, Takashi Abe, Takahiro Kiuchi
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Patent number: 11460794Abstract: An image recording apparatus includes a stacking portion on which a recording medium is stacked; a recording portion for recording an image on the recording medium; a heating portion for heating the recording medium recorded by the recording portion; a discharge portion for discharging the recording medium recorded by the recording portion; a first path for conveying the recording medium in order of the stacking portion, the recording portion, the heating portion, and the discharge portion; a second path branching off from the first path between the recording portion and the heating portion, and merging with the first path downstream of the heating portion; and a third path for connecting the second path and a part of the first path between the stacking portion and the recording portion, and inverting a recording surface of the recording medium.Type: GrantFiled: June 2, 2021Date of Patent: October 4, 2022Assignee: Canon Kabushiki KaishaInventors: Yumi Mukoyama, Tetsuya Ishikawa, Tsuyoshi Saeki, Yoshiyuki Kurita, Takashi Abe
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Patent number: 11415914Abstract: An image recording apparatus includes a first path for conveying a recording medium in order of a stacking portion on which the recording medium is stacked, a recording portion for recording an image on the recording medium, a heating portion for heating the image, and a discharge portion for discharging the recording medium; a second path branching off from the first path at a first branch part between the recording portion and the heating portion, and for discharging the recording medium to the discharge portion without passing through the heating portion; and a third path branching off from the first path at a second branch part between the recording portion and the first branch part, and for conveying the recording medium, the recording surface of which is inverted, toward a location between the stacking portion and the recording portion in the first path.Type: GrantFiled: June 2, 2021Date of Patent: August 16, 2022Assignee: Canon Kabushiki KaishaInventors: Tsuyoshi Saeki, Tetsuya Ishikawa, Yoshiyuki Kurita, Takashi Abe, Yumi Mukoyama
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Publication number: 20210382423Abstract: An image recording apparatus includes a stacking portion on which a recording medium is stacked; a recording portion for recording an image on the recording medium; a heating portion for heating the recording medium recorded by the recording portion; a discharge portion for discharging the recording medium recorded by the recording portion; a first path for conveying the recording medium in order of the stacking portion, the recording portion, the heating portion, and the discharge portion; a second path branching off from the first path between the recording portion and the heating portion, and merging with the first path downstream of the heating portion; and a third path for connecting the second path and a part of the first path between the stacking portion and the recording portion, and inverting a recording surface of the recording medium.Type: ApplicationFiled: June 2, 2021Publication date: December 9, 2021Inventors: Yumi Mukoyama, Tetsuya Ishikawa, Tsuyoshi Saeki, Yoshiyuki Kurita, Takashi Abe
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Publication number: 20210379909Abstract: An image recording apparatus includes a recording portion that records an image on a recording medium, a heating portion that heats the recording medium on which recording has been performed by the recording portion, a discharge portion that discharges the recording medium on which recording has been performed by the recording portion, a first conveying path for conveying the recording medium from the recording portion to the discharge portion via the heating portion, and a second conveying path for conveying the recording medium from the recording portion to the discharge portion without passing through the heating portion. In a first section in which the heating portion is disposed on the first conveying path, the recording medium is guided in a direction substantially perpendicular to an installation face of the image recording apparatus. The second conveying path has a second section that is parallel to the first section.Type: ApplicationFiled: June 2, 2021Publication date: December 9, 2021Inventors: Takashi Abe, Tetsuya Ishikawa, Tsuyoshi Saeki, Yoshiyuki Kurita, Yumi Mukoyama
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Publication number: 20210382420Abstract: An image recording apparatus includes: a first path for conveying a recording medium in order of a stacking portion on which the recording medium is stacked, a recording portion for recording an image on the recording medium, a heating portion for recording the image, and a discharge portion for discharging the recording medium; a second path branching off from the first path at a first branch part between the recording portion and the heating portion, and for discharging the recording medium to the discharge portion without passing through the heating portion; and a third path branching off from the first path at a second branch part between the recording portion and the first branch part, and for conveying the recording medium, the recording surface of which is inverted, toward between the stacking portion and the recording portion in the first path.Type: ApplicationFiled: June 2, 2021Publication date: December 9, 2021Inventors: Tsuyoshi Saeki, Tetsuya Ishikawa, Yoshiyuki Kurita, Takashi Abe, Yumi Mukoyama
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Publication number: 20210178777Abstract: An inkjet printing apparatus includes a tank in which ink is contained; a print head for ejecting ink supplied from the tank to perform print operation; a supply flow path for supplying ink from the tank to the print head; a collection flow path for collecting ink from the print head to the tank; and a pump provided in the supply flow path or the collection flow path. The pump is driven, during print operation, at a first speed to circulate ink within a circulation path including the tank, the supply flow path, the print head, and the collection flow path, and the pump is driven, from a start of the ink circulation until a lapse of predetermined time period, at a second speed which is faster than the first speed.Type: ApplicationFiled: March 2, 2021Publication date: June 17, 2021Inventors: Junya Kosuge, Yumi Mukoyama, Toshiaki Tokisawa, Tsuyoshi Saeki, Takashi Abe
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Patent number: 11007786Abstract: An inkjet printing apparatus performs: a first operation for pulling out ink in a flow path of the ejection opening up to the collection flow path into the first tank by operating the tank vacuum pump with the supply valve being closed and a second operation for pulling out ink in a flow path of the first tank up to the ejection opening by operating the cap vacuum pump with the collection valve being closed and the atmosphere release valve being opened.Type: GrantFiled: September 26, 2019Date of Patent: May 18, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Toshiaki Tokisawa, Tsuyoshi Saeki, Takashi Abe, Yumi Mukoyama, Ryoma Arai
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Patent number: 10994551Abstract: An object of the present invention is to prevent a sub tank the does not need replenishment from being replenished with ink. The present invention is a printing apparatus that includes: a print head; a sub tank; a main tank; a supply valve; an atmosphere release valve; and one pump, and performs a replenishment operation to replenish the sub tank with ink from the main tank by driving the pump in a state where the atmosphere release valve is closed and the supply valve is open, wherein a second ink, and a third ink, and in a case where replenishment of a first ink and the third ink is necessary and replenishment of the second ink is not necessary, the atmosphere release valve is opened after the supply valve of the first ink is closed and before the supply valve of the second ink is opened.Type: GrantFiled: February 28, 2019Date of Patent: May 4, 2021Assignee: Canon Kabushiki KaishaInventors: Toshiaki Tokisawa, Kyoshiro Okude, Yumi Mukoyama, Ryoma Arai
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Patent number: 10960678Abstract: An inkjet printing apparatus includes a tank in which ink is contained; a print head for ejecting ink supplied from the tank to perform print operation; a supply flow path for supplying ink from the tank to the print head; a collection flow path for collecting ink from the print head to the tank; and a pump provided in the supply flow path or the collection flow path. The pump is driven, during print operation, at a first speed to circulate ink within a circulation path including the tank, the supply flow path, the print head, and the collection flow path, and the pump is driven, from a start of the ink circulation until a lapse of predetermined time period, at a second speed which is faster than the first speed.Type: GrantFiled: March 10, 2020Date of Patent: March 30, 2021Assignee: Canon Kabushiki KaishaInventors: Junya Kosuge, Yumi Mukoyama, Toshiaki Tokisawa, Tsuyoshi Saeki, Takashi Abe
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Publication number: 20200346468Abstract: According to an aspect of the present invention, an inkjet printing apparatus includes a print head having an ejection opening surface on which ejection openings for ejecting ink are formed, a tank storing ink to be supplied to the print head, a supply flow path for supplying the ink from the tank to the print head, a collection flow path for collecting the ink from the print head to the tank, a supply pump provided in the supply flow path to supply the ink from the tank to the print head, a tank decompression pump which decompresses the inside of the tank, and a control unit which controls to drive the supply pump and the tank decompression pump to fill the collection flow path with ink.Type: ApplicationFiled: July 22, 2020Publication date: November 5, 2020Inventors: Toshiaki Tokisawa, Yumi Mukoyama, Kyoshiro Okude, Takashi Abe, Takahiro Kiuchi
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Patent number: 10780703Abstract: A channel control apparatus includes: a diaphragm portion displaceable between an opening position to open a channel and a closing position to close the channel; an abutment portion for moving in a first direction and a second direction opposite to the first direction by a driving source; and a gripping member that has an inclined surface portion for abutting against the abutment portion and grips the diaphragm portion, wherein when the abutment portion moves in the first direction, the gripping member displaces the diaphragm portion to the opening position by the abutment portion abutting against the inclined surface portion, and wherein when the abutment portion moves in the second direction, the gripping member displaces the diaphragm portion to the closing position by the abutment portion being separated from the inclined surface portion.Type: GrantFiled: September 16, 2019Date of Patent: September 22, 2020Assignee: Canon Kabushiki KaishaInventors: Takashi Abe, Tsuyoshi Saeki, Toshiaki Tokisawa, Ryoma Arai, Yumi Mukoyama