Patents by Inventor Kohei Ueno

Kohei Ueno 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).

  • Publication number: 20260217033
    Abstract: A liquid ejection apparatus includes: a liquid ejection unit configured to eject a liquid onto a medium; a collection unit configured to collect, as a waste liquid, the liquid ejected from the liquid ejection unit; a mounting portion where a waste liquid container configured to contain the waste liquid collected by the collection unit is attachable and detachable; a waste liquid flow path configured to allow the waste liquid to flow into the waste liquid container; and a control unit configured to control the delivery of the waste liquid into the waste liquid container. The liquid ejection unit is configured to eject a recording liquid for recording on the medium, a treatment liquid that is a liquid having reactivity with the recording liquid and performs a treatment on the medium, and a cleaning liquid for cleaning the liquid ejection unit.
    Type: Application
    Filed: January 27, 2026
    Publication date: July 30, 2026
    Inventors: Kazuyoshi OHASHI, Shintaro KOMURO, Kohei UENO, Yusuke KOMIYAMA
  • Publication number: 20260217020
    Abstract: A liquid ejection apparatus includes a liquid ejection unit, a flow path that allows a liquid to flow from a plurality of liquid containers to the liquid ejection unit, and a control unit. The flow path includes a plurality of supply flow paths that supply the liquid from the liquid containers, a common flow path that is coupled to at least one of the plurality of supply flow paths and allows the liquid to flow to the liquid ejection unit, and a switching unit that switches the supply flow path coupled to the common flow path, and the plurality of supply flow paths include a first supply flow path that supplies the liquid from a first liquid container, a second supply flow path that supplies the liquid from a second liquid container, and a third supply flow path that supplies the liquid from a third liquid container.
    Type: Application
    Filed: January 26, 2026
    Publication date: July 30, 2026
    Inventors: Kohei UENO, Shintaro KOMURO, Kazuyoshi OHASHI
  • Publication number: 20250355391
    Abstract: An image forming apparatus includes an image bearing member, an image forming unit, a transfer unit, a conveyance unit, a width position detection unit, and a control unit. The width position detection unit detects a width position of a sheet in a sheet width direction. The control unit acquires a first width position of a first sheet based on a detection result of the width position detection unit, and adjust a width position of an image to be transferred to a second sheet subsequent to the first sheet on the image bearing member based on the first width position, where the first width position is a width position of the first sheet at a first conveyance direction position that is a position of the first sheet located in a central region among three regions into which the first sheet is equally divided in a sheet conveyance direction.
    Type: Application
    Filed: May 13, 2025
    Publication date: November 20, 2025
    Inventors: KOHEI UENO, KOHEI DENO, YUKINOJO TODA
  • Publication number: 20250326235
    Abstract: A liquid ejection apparatus includes a first liquid ejector configured to eject a pretreatment liquid as a liquid for pretreatment onto a medium, a second liquid ejector configured to eject a recording liquid as a liquid for recording onto the medium onto which the liquid is ejected by the first liquid ejector, and a controller configured to control the first liquid ejector and the second liquid ejector, wherein one surface of the medium is defined as a first surface and another surface of the medium is defined as a second surface, the controller is configured to perform an adjustment of the ejection of the pretreatment liquid to suppress a difference in liquid absorption between the first surface and the second surface based on recording data.
    Type: Application
    Filed: April 21, 2025
    Publication date: October 23, 2025
    Inventors: Shintaro KOMURO, Kazuyoshi OHASHI, Kohei UENO
  • Publication number: 20250303725
    Abstract: A liquid ejection device includes a liquid ejection section configured to eject liquid onto a medium; a mount section on which is mounted a liquid container containing the liquid ejected from the liquid ejection section; and a control section configured to perform various controls, wherein the mount section is configured to alternatively have mounted thereon, as the liquid container, a recording liquid container containing a recording liquid for performing recording on the medium and, as the liquid container, a processing liquid container containing a processing liquid for performing processing on the medium and the mount section is configured to switch under the control of the control section between a recording liquid state in which the recording liquid container is mountable and in which the processing liquid container is not mountable and a processing liquid state in which the recording liquid container is not mountable and in which the processing liquid container is mountable.
    Type: Application
    Filed: March 25, 2025
    Publication date: October 2, 2025
    Inventors: Kohei UENO, Shintaro KOMURO, Kazuyoshi OHASHI
  • Publication number: 20250303722
    Abstract: A liquid ejection device includes a liquid ejection section configured to eject liquid onto a medium, a mount section on which is mounted a liquid container containing the liquid ejected from the liquid ejection section, and a flow path through which the liquid contained in the liquid container flows until the liquid is ejected from the liquid ejection section, wherein the mount section is configured to alternatively mount a recording liquid container as a liquid container containing a recording liquid for performing recording on the medium and a processing liquid container as a liquid container containing a processing liquid for performing processing on the medium and the flow path is cleanable.
    Type: Application
    Filed: March 24, 2025
    Publication date: October 2, 2025
    Inventors: Kazuyoshi OHASHI, Shintaro KOMURO, Kohei UENO
  • Patent number: 12344494
    Abstract: A processing system includes a stacker on which at least one medium recorded with an image is stacked, a holding unit configured to hold the medium, a processing path extending from the stacker to the holding unit, a pick roller configured to transport the medium from the stacker to the processing path, a reading unit configured to read the medium transported through the processing path, and a control unit configured to store indication data indicating an index of whether to transport a medium to the holding unit, wherein, when receiving a processing instruction from a user, the control unit is configured to cause the pick roller to transport a medium from the stacker to the processing path, and determine whether to transport the medium to the holding unit, based on read data and the indication data, the read data being acquired by reading the medium by the reading unit.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: July 1, 2025
    Assignee: Seiko Epson Corporation
    Inventors: Hirohisa Kodaira, Chiaki Shimada, Kohei Ueno
  • Publication number: 20250206012
    Abstract: The moistening device 40 includes a transport section, a spray section 42, and a movement section 46. The moistening device 40 moistens the medium M by spraying the moistening liquid HL thereon. The transport section transports the medium M along the transport direction Y1. The spray section 42 sprays the moistening liquid HL on the medium M transported by the transport section. The movement section 46 moves the spray section 42.
    Type: Application
    Filed: December 23, 2024
    Publication date: June 26, 2025
    Inventors: Yutaro HARADA, Kohei UENO, Hirohisa KODAIRA
  • Patent number: 12212721
    Abstract: A post-processing unit includes a punch unit that punches a paper on which recording is performed by a recording unit that discharges ink, and a controller that controls a punching operation of the punch unit. The controller sets at least one of the number of punching and a punching speed per paper in the punch unit based on setting information of at least one of recording information and environmental information in the recording unit.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: January 28, 2025
    Assignee: Seiko Epson Corporation
    Inventors: Namiki Hashiguchi, Kohei Ueno, Hirohisa Kodaira, Toshikazu Kotaka
  • Patent number: 12194731
    Abstract: A medium drying device includes a transport roller pair as a transport unit that transports a medium and a heat roller pair as one heating unit that heats the medium transported by the transport roller pair and is provided in a transport direction of the medium, in which the medium is configured to be transported to a heating area by the heat roller pair a plurality of times.
    Type: Grant
    Filed: May 16, 2023
    Date of Patent: January 14, 2025
    Assignee: Seiko Epson Corporation
    Inventors: Yutaro Harada, Kohei Ueno, Nobuyuki Mizushima, Shunpei Yamaguchi
  • Publication number: 20240391717
    Abstract: A medium conveying apparatus includes a housing in which a paper feeding port is provided, a paper feeding roller configured to convey paper through the paper feeding port, a drive shaft to which the paper feeding roller is attached, the drive shaft extending in a ±Y direction intersecting a conveying direction of the paper, and an elastic roller attached to the drive shaft and configured to prevent sound occurring on the inside of the housing from leaking to the outside of the housing through the paper feeding port. The elastic roller comes into contact with the paper conveyed by the paper feeding roller and removes electric charges of the paper.
    Type: Application
    Filed: May 20, 2024
    Publication date: November 28, 2024
    Inventors: Yuto SUZUKI, Kohei UENO
  • Publication number: 20240308806
    Abstract: A medium transportation device for transporting a medium. The medium transportation device including a first transportation roller pair that nips and transports the medium with a first uneven roller of which a surface coming into contact with the medium is provided with protrusions and recesses and a first facing roller that faces the first uneven roller. A second transportation roller pair is positioned downstream of the first transportation roller pair in a medium transportation direction and nips and transports the medium with a second uneven roller of which a surface coming into contact with the medium is provided with protrusions and recesses and a second facing roller that faces the second uneven roller. The first uneven roller comes into contact with a first surface and the second uneven roller comes into contact with a second surface.
    Type: Application
    Filed: March 14, 2024
    Publication date: September 19, 2024
    Inventors: Kohei UENO, Hirohisa KODAIRA
  • Publication number: 20240308799
    Abstract: Provided is an uneven roller of which a surface coming into contact with a medium is provided with a plurality of protrusions and recesses, the uneven roller including a shaft portion, a reference portion mounted on the shaft portion, a ring portion that is positioned closer to a side, to which a first direction along an axial direction of the shaft portion extends, than the reference portion is and that is mounted on the shaft portion, and a restriction portion that is positioned closer to the side, to which the first direction extends, than the ring portion is and that is mounted on the shaft portion to restrict movement of the ring portion in the first direction. The ring portion is composed of a plurality of uneven rings disposed along the axial direction, the uneven ring including a plurality of protrusion portions disposed along a circumferential direction.
    Type: Application
    Filed: March 14, 2024
    Publication date: September 19, 2024
    Inventors: Kohei UENO, Hirohisa KODAIRA
  • Publication number: 20240308798
    Abstract: Provided is a medium transportation device including an uneven roller of which a surface coming into contact with a medium is provided with a plurality of protrusions and recesses, a facing roller nipping the medium together with the uneven roller, and a claw portion guiding the medium to be separated from the uneven roller. A non-uneven region in which the protrusions and recesses are not formed along a circumferential direction is formed at a portion of the uneven roller in an axial direction and the claw portion faces and the non-uneven region.
    Type: Application
    Filed: March 14, 2024
    Publication date: September 19, 2024
    Inventors: Hirohisa KODAIRA, Kohei UENO
  • Publication number: 20240308807
    Abstract: Provided is a medium transportation device transporting a medium onto which liquid is discharged, the medium transportation device including a transportation roller pair that nips and transports the medium. The transportation roller pair includes a first uneven roller of which a surface coming into contact with the medium is provided with protrusions and recesses and a second uneven roller that is a roller disposed to face the first uneven roller and of which a surface coming into contact with the medium is provided with protrusions and recesses and a protrusion portion of one of the first uneven roller and the second uneven roller faces a recess portion of another of the first uneven roller and the second uneven roller.
    Type: Application
    Filed: March 14, 2024
    Publication date: September 19, 2024
    Inventors: Hirohisa KODAIRA, Kohei UENO
  • Publication number: 20240239120
    Abstract: A recording device includes a conveyance belt that adsorbs and conveys a medium using charge, a recording unit that performs recording on the medium conveyed by the conveyance belt, a determination unit that determines whether or not the medium is jammed, and a peeling unit that peels off the medium from the conveyance belt by blowing air. When there is a medium staying on the conveyance belt at the time of occurrence of the jam, the peeling unit peels off the medium from the conveyance belt by blowing air toward an acute angled gap in a state in which the acute angled gap is formed between the conveyance belt and the medium.
    Type: Application
    Filed: January 14, 2024
    Publication date: July 18, 2024
    Inventors: Kohei UENO, Kazuhisa KAWAKAMI, Kazuyoshi OHASHI
  • Publication number: 20240228210
    Abstract: A medium transport device 29, a liquid ejection device 13, and a post-process device 15 include a recording path 38; a first transport path 40 arranged downstream of the recording path 38; an inversion path 39 arranged downstream of the recording path 38; a first branch section 51; and a blower section 50 configured to transport the medium 19 to either the first transport path 40 or the inversion path 39, wherein when a medium 19 that is transported first is defined as a first medium and a medium 19 that is transported subsequently to the first medium is defined as a second medium, in a case where the blower section 50 switches a transport destination between the first medium and the second medium, the blower section 50 starts the switching operation while the first medium is passing through the first branch section 51.
    Type: Application
    Filed: January 8, 2024
    Publication date: July 11, 2024
    Inventors: Yoshikazu KOIKE, Kazuhisa KAWAKAMI, Kazuyoshi OHASHI, Kohei UENO
  • 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: 11897159
    Abstract: A post-processing apparatus includes a transport path having a first path member and a second path member, a punching member disposed on the transport path to perform punching on the medium. The transport path includes a first transport path disposed downstream of the punching member in a transport direction and a second transport path continuously extending downstream of the first transport path in the transport path, the second transport path having a curved shape to hold the medium in a curved state, the first path member in the second transport path forms an outer side of the curved shape and is disposed at a position further separated from the first surface than the first path member in the first transport path, and an upstream end in the transport direction of the medium in the curved state is moved from the first transport path to the second transport path.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: February 13, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Kohei Ueno, Chiaki Shimada, Kazuhisa Kawakami
  • Patent number: 11888033
    Abstract: A nitride compound semiconductor having a low resistivity that is conventionally difficult to be manufactured is provided. Since the nitride compound semiconductor exhibits a high electron mobility, a high-performance semiconductor device may be configured. The present invention may provide, at a high productivity, a group 13 nitride semiconductor of an n-type conductivity that may be formed as a film on a substrate having a large area size and has a mobility of 70 to 140 cm2/(V·s) by a pulsed sputtering method performed in a process atmosphere at room temperature to 700° C.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: January 30, 2024
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hiroshi Fujioka, Kohei Ueno