Patents by Inventor Akinori MUROMACHI

Akinori MUROMACHI 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).

  • Patent number: 11897255
    Abstract: A recording unit which is provided in a recording system includes a heat roller pair which contacts paper and performs drying of the paper after recording by a line head using heating and a control unit which controls operation of the heat roller pair, in which a heating region of the heat roller pair is divided into a plurality of subdivisions in a width direction which intersects the medium transport direction and the heat roller pair is configured to be capable of modifying a heating state for each subdivision region, and in which the control unit controls the heating state of each of the subdivision regions in the heat roller pair according to conditions when performing drying of the paper using the heat roller pair.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: February 13, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Nobuyuki Mizushima, Kazuyoshi Ohashi, Akinori Muromachi, Kohei Ueno
  • Patent number: 11661300
    Abstract: A medium transporting apparatus includes a mounting portion configured to mount a medium, and a pressing portion configured to switch between a first state for pressing the medium against the mounting portion and a second state for releasing the medium. The pressing portion takes the first state in waiting for the medium to the mounting portion, switches to the second state in response to the sent medium and returns to the first state after the medium is sent to the mounting portion. When the last medium is mounted on the mounting portion, a timing at which the pressing portion returns to the first state from the second state is delayed with respect to the timing of the return therebefore.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: May 30, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Nobuyuki Mizushima, Kazuyoshi Ohashi, Akinori Muromachi, Kohei Ueno
  • Patent number: 11633964
    Abstract: An intermediate unit includes a transportation path provided with a drying unit that accelerates the drying of the medium. The transportation path includes an inlet path, an outlet path, a first branch path, a second branch path, a first junction path, a second junction path, a switch-back type inversion path with a first inversion path and a second inversion path. The first branch path and the second branch path which branch off at a branch point from the inlet path. The first junction path and the second junction path and the outlet path join each other at a junction point. The first branch path and the first junction path and the first inversion path join each other at a first connection point. The second branch path and the second junction path and the second inversion path join each other at a second connection point.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: April 25, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Yutaro Harada, Kohei Ueno, Akinori Muromachi, Hidetoshi Kodama, Kazuyoshi Ohashi, Tsuyoshi Furumido, Hirohisa Adachi
  • Publication number: 20220105734
    Abstract: An intermediate unit includes a transportation path provided with a drying unit that accelerates the drying of the medium. The transportation path includes an inlet path, an outlet path, a first branch path, a second branch path, a first junction path, a second junction path, a switch-back type inversion path with a first inversion path and a second inversion path. The first branch path and the second branch path which branch off at a branch point from the inlet path. The first junction path and the second junction path and the outlet path join each other at a junction point. The first branch path and the first junction path and the first inversion path join each other at a first connection point. The second branch path and the second junction path and the second inversion path join each other at a second connection point.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 7, 2022
    Inventors: Yutaro HARADA, Kohei UENO, Akinori MUROMACHI, Hidetoshi KODAMA, Kazuyoshi OHASHI, Tsuyoshi FURUMIDO, Hirohisa ADACHI
  • Patent number: 11235594
    Abstract: An intermediate unit includes a transportation path along which a medium, on which printing has been performed by a printing unit that performs printing on the medium by using liquid, is transported to a post processing unit that performs post processing on the medium. The transportation path is provided with a drying unit that accelerates the drying of the medium. The drying unit is driven according to the printing data.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: February 1, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Yutaro Harada, Kohei Ueno, Akinori Muromachi, Hidetoshi Kodama, Kazuyoshi Ohashi, Tsuyoshi Furumido, Hirohisa Adachi
  • Publication number: 20210245526
    Abstract: A recording unit which is provided in a recording system includes a heat roller pair which contacts paper and performs drying of the paper after recording by a line head using heating and a control unit which controls operation of the heat roller pair, in which a heating region of the heat roller pair is divided into a plurality of subdivisions in a width direction which intersects the medium transport direction and the heat roller pair is configured to be capable of modifying a heating state for each subdivision region, and in which the control unit controls the heating state of each of the subdivision regions in the heat roller pair according to conditions when performing drying of the paper using the heat roller pair.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 12, 2021
    Inventors: Nobuyuki MIZUSHIMA, Kazuyoshi OHASHI, Akinori MUROMACHI, Kohei UENO
  • Patent number: 11052663
    Abstract: A recording apparatus includes a transport belt that transports a medium by attracting the medium onto an outer peripheral surface of the transport belt and circulating, a recording portion that performs recording on the medium transported by the transport belt, a cleaning portion that cleans the outer peripheral surface, and a controller that controls a driving of components. The controller perform a cleaning operation that cleans the outer peripheral surface by moving both the cleaning portion and the transport belt in a state in which the cleaning portion is in contact with the outer peripheral surface of the transport belt, and a dew condensation suppressing operation that increases a temperature of the outer peripheral surface by stopping the cleaning portion and moving the transport belt in a state in which the cleaning portion is in contact with the outer peripheral surface of the transport belt.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: July 6, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Akinori Muromachi, Takamasa Ikagawa
  • Patent number: 11040551
    Abstract: A recording unit which is provided in a recording system includes a heat roller pair which contacts paper and performs drying of the paper after recording by a line head using heating and a control unit which controls operation of the heat roller pair, in which a heating region of the heat roller pair is divided into a plurality of subdivisions in a width direction which intersects the medium transport direction and the heat roller pair is configured to be capable of modifying a heating state for each subdivision region, and in which the control unit controls the heating state of each of the subdivision regions in the heat roller pair according to conditions when performing drying of the paper using the heat roller pair.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: June 22, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Nobuyuki Mizushima, Kazuyoshi Ohashi, Akinori Muromachi, Kohei Ueno
  • Publication number: 20210094786
    Abstract: A medium transporting apparatus includes a mounting portion configured to mount a medium, and a pressing portion configured to switch between a first state for pressing the medium against the mounting portion and a second state for releasing the medium. The pressing portion takes the first state in waiting for the medium to the mounting portion, switches to the second state in response to the sent medium and returns to the first state after the medium is sent to the mounting portion. When the last medium is mounted on the mounting portion, a timing at which the pressing portion returns to the first state from the second state is delayed with respect to the timing of the return therebefore.
    Type: Application
    Filed: September 24, 2020
    Publication date: April 1, 2021
    Inventors: Nobuyuki MIZUSHIMA, Kazuyoshi OHASHI, Akinori MUROMACHI, Kohei UENO
  • Patent number: 10882341
    Abstract: A recording apparatus includes a recording head that performs recording on a medium, a transport belt that has an clinging surface that cling the medium, and transports the medium to a position facing the recording head, a first charging unit that is in contact with the transport belt to frictionally charge the clinging surface, and a second charging unit that applies a voltage to the transport belt to charge the clinging surface, in which a control unit, which switches between charging of the clinging surface by the first charging unit and charging of the clinging surface by the second charging unit, switches between the charging of the clinging surface by the first charging unit and the charging of the clinging surface by the second charging unit, according to a state of a surface of the medium, which is in contact with the clinging surface.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: January 5, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Takamasa Ikagawa, Yuichi Segawa, Akinori Muromachi, Yoshikazu Koike
  • Publication number: 20200376858
    Abstract: An intermediate unit includes a transportation path along which a medium, on which printing has been performed by a printing unit that performs printing on the medium by using liquid, is transported to a post processing unit that performs post processing on the medium. The transportation path is provided with a drying unit that accelerates the drying of the medium. The drying unit is driven according to the printing data.
    Type: Application
    Filed: August 20, 2020
    Publication date: December 3, 2020
    Inventors: Yutaro HARADA, Kohei UENO, Akinori MUROMACHI, Hidetoshi KODAMA, Kazuyoshi OHASHI, Tsuyoshi FURUMIDO, Hirohisa ADACHI
  • Patent number: 10787005
    Abstract: There is provided an intermediate unit including a transportation path along which a medium, on which printing has been performed by a printing unit that performs printing on the medium by using liquid, is transported to a post processing unit that performs post processing on the medium. The transportation path includes first and second inversion paths in which the medium is inverted upside down, respectively, the second inversion path being provided with a decurling unit that corrects curl of the medium, the first inversion path being not provided with the decurling unit, the first and second inversion paths being selectively used to invert the medium upside down according to printing data for the medium.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: September 29, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Yutaro Harada, Kohei Ueno, Akinori Muromachi, Hidetoshi Kodama, Kazuyoshi Ohashi, Tsuyoshi Furumido, Hirohisa Adachi
  • Publication number: 20200122470
    Abstract: A recording apparatus includes a transport belt that transports a medium by attracting the medium onto an outer peripheral surface of the transport belt and circulating, a recording portion that performs recording on the medium transported by the transport belt, a cleaning portion that cleans the outer peripheral surface, and a controller that controls a driving of components. The controller perform a cleaning operation that cleans the outer peripheral surface by moving both the cleaning portion and the transport belt in a state in which the cleaning portion is in contact with the outer peripheral surface of the transport belt, and a dew condensation suppressing operation that increases a temperature of the outer peripheral surface by stopping the cleaning portion and moving the transport belt in a state in which the cleaning portion is in contact with the outer peripheral surface of the transport belt.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 23, 2020
    Inventors: Akinori MUROMACHI, Takamasa IKAGAWA
  • Publication number: 20200001624
    Abstract: A recording apparatus includes a recording head that performs recording on a medium, a transport belt that has an clinging surface that cling the medium, and transports the medium to a position facing the recording head, a first charging unit that is in contact with the transport belt to frictionally charge the clinging surface, and a second charging unit that applies a voltage to the transport belt to charge the clinging surface, in which a control unit, which switches between charging of the clinging surface by the first charging unit and charging of the clinging surface by the second charging unit, switches between the charging of the clinging surface by the first charging unit and the charging of the clinging surface by the second charging unit, according to a state of a surface of the medium, which is in contact with the clinging surface.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 2, 2020
    Inventors: Takamasa IKAGAWA, Yuichi SEGAWA, Akinori MUROMACHI, Yoshikazu KOIKE
  • Publication number: 20190337309
    Abstract: There is provided an intermediate unit including a transportation path along which a medium, on which printing has been performed by a printing unit that performs printing on the medium by using liquid, is transported to a post processing unit that performs post processing on the medium. The transportation path includes first and second inversion paths in which the medium is inverted upside down, respectively, the second inversion path being provided with a decurling unit that corrects curl of the medium, the first inversion path being not provided with the decurling unit, the first and second inversion paths being selectively used to invert the medium upside down according to printing data for the medium.
    Type: Application
    Filed: July 22, 2019
    Publication date: November 7, 2019
    Inventors: Yutaro HARADA, Kohei UENO, Akinori MUROMACHI, Hidetoshi KODAMA, Kazuyoshi OHASHI, Tsuyoshi FURUMIDO, Hirohisa ADACHI
  • Patent number: 10399364
    Abstract: There is provided an intermediate unit including a transportation path along which a paper sheet, on which printing has been performed by a printing unit that performs printing on the paper sheet as a medium by using liquid, can be transported to a post processing unit that performs post processing on the paper sheet, in which the transportation path is provided with a drying unit that accelerates the drying of the paper sheet.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: September 3, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Yutaro Harada, Kohei Ueno, Akinori Muromachi, Hidetoshi Kodama, Kazuyoshi Ohashi, Tsuyoshi Furumido, Hirohisa Adachi
  • Publication number: 20190193426
    Abstract: A recording unit which is provided in a recording system includes a heat roller pair which contacts paper and performs drying of the paper after recording by a line head using heating and a control unit which controls operation of the heat roller pair, in which a heating region of the heat roller pair is divided into a plurality of subdivisions in a width direction which intersects the medium transport direction and the heat roller pair is configured to be capable of modifying a heating state for each subdivision region, and in which the control unit controls the heating state of each of the subdivision regions in the heat roller pair according to conditions when performing drying of the paper using the heat roller pair.
    Type: Application
    Filed: December 26, 2018
    Publication date: June 27, 2019
    Inventors: Nobuyuki MIZUSHIMA, Kazuyoshi OHASHI, Akinori MUROMACHI, Kohei UENO
  • Patent number: 10245860
    Abstract: A medium, of which skew is appropriately corrected, is fed from an intermediate unit to a post processing unit so as to suppress an adverse effect of the skew of the medium in the post processing unit.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: April 2, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Hidetoshi Kodama, Kazuyoshi Ohashi, Hirohisa Adachi, Akinori Muromachi
  • Patent number: 10155377
    Abstract: The present invention relates to a print system, such as an ink jet printer, which performs printing on a medium, such as a sheet that is transported.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: December 18, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Hidetoshi Kodama, Akinori Muromachi
  • Publication number: 20180194130
    Abstract: The present invention relates to a print system, such as an ink jet printer, which performs printing on a medium, such as a sheet that is transported.
    Type: Application
    Filed: March 9, 2018
    Publication date: July 12, 2018
    Inventors: Hidetoshi KODAMA, Akinori MUROMACHI