Patents by Inventor Seiji Tezuka

Seiji Tezuka 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: 20240083701
    Abstract: An image reading device includes an inner roller and an outer roller in a curved path, and a path forming member that forms an outer side of a first path portion when a path portion extending downstream in a conveying direction from a nip position between the inner roller and the outer roller in the curved path is defined as the first path portion, wherein a support portion that supports a trailing end of a medium is provided on a lateral side of the outer roller in a swing member that rotatably supports the outer roller, and the support portion protrudes further inward of the curved path than the path forming member in the first path portion.
    Type: Application
    Filed: September 7, 2023
    Publication date: March 14, 2024
    Inventor: Seiji TEZUKA
  • Publication number: 20230319210
    Abstract: A scanner includes a reading unit that reads an image of a paper, a medium feeding portion that is capable of selecting a first feeding mode in which a separation feeding for separately feeding a paper bundle in which a plurality of sheets of paper is overlapped with each other is performed and a second feeding mode in which a non-separation feeding for collectively feeding the paper bundle without separating is performed, and a pair of first transporting rollers and a pair of second transporting rollers that transport the paper fed by the medium feeding portion, in a case in which the medium feeding portion feeds the paper in the second feeding mode, a first driven roller and a second driven roller respectively constituting the pair of first transporting rollers and the pair of second transporting rollers are driven in a rotation direction where the paper is transported.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 5, 2023
    Inventors: Seiji Tezuka, Noriyuki Koyanagi, Naoki Sakamoto
  • Patent number: 11711478
    Abstract: A scanner includes a reading unit that reads an image of a paper, a medium feeding portion that is capable of selecting a first feeding mode in which a separation feeding for separately feeding a paper bundle in which a plurality of sheets of paper is overlapped with each other is performed and a second feeding mode in which a non-separation feeding for collectively feeding the paper bundle without separating is performed, and a pair of first transporting rollers and a pair of second transporting rollers that transport the paper fed by the medium feeding portion, in a case in which the medium feeding portion feeds the paper in the second feeding mode, a first driven roller and a second driven roller respectively constituting the pair of first transporting rollers and the pair of second transporting rollers are driven in a rotation direction where the paper is transported.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: July 25, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Seiji Tezuka, Noriyuki Koyanagi, Naoki Sakamoto
  • Publication number: 20220411215
    Abstract: A document transporting device includes a main body unit that forms an inner side of an inverting path, a cover unit that exposes a portion of the inverting path, a movable unit, a transport roller, a driven roller, and a roller supporting unit that forms an outer side of the inverting path. By receiving a force from the cover unit, the roller supporting unit rotates in a direction in which the driven roller moves away from the transport roller. By receiving a force from the roller supporting unit, the movable unit rotates in a direction in which the movable unit retreats from the main body unit.
    Type: Application
    Filed: June 27, 2022
    Publication date: December 29, 2022
    Inventors: Seiji TEZUKA, Koji MIGITA
  • Patent number: 11381695
    Abstract: A scanner includes a reading section configured to read a medium being transported, a discharge roller pair configured to nip the medium read in the reading section by a first roller and a second roller and discharge the medium, and a rib disposed in a position overlapping the discharge roller pair in a medium transport direction, the rib protruding from the first roller side toward the second roller side out of the first roller and the second roller, the rib including a first rib disposed on one side in a width direction intersecting the medium transport direction with respect to the discharge roller pair and a second rib disposed on the opposite side of the first rib in the width direction with respect to the discharge roller pair.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: July 5, 2022
    Assignee: Seiko Epson Corporation
    Inventor: Seiji Tezuka
  • Publication number: 20220210289
    Abstract: A scanner includes a reading unit that reads an image of a paper, a medium feeding portion that is capable of selecting a first feeding mode in which a separation feeding for separately feeding a paper bundle in which a plurality of sheets of paper is overlapped with each other is performed and a second feeding mode in which a non-separation feeding for collectively feeding the paper bundle without separating is performed, and a pair of first transporting rollers and a pair of second transporting rollers that transport the paper fed by the medium feeding portion, in a case in which the medium feeding portion feeds the paper in the second feeding mode, a first driven roller and a second driven roller respectively constituting the pair of first transporting rollers and the pair of second transporting rollers are driven in a rotation direction where the paper is transported.
    Type: Application
    Filed: March 15, 2022
    Publication date: June 30, 2022
    Inventors: Seiji Tezuka, Noriyuki Koyanagi, Naoki Sakamoto
  • Patent number: 11343397
    Abstract: An image reading apparatus includes a support section in contact with a mounting surface on which the apparatus is mounted, an apparatus body including a reader, the apparatus body, and a position holding section. The position of the apparatus body can be switched between a first position in which the apparatus body is not in use and a second position in which the apparatus body reads a document using the reader, and in which a projected area of the apparatus body on the mounting surface is larger than that in the first position, and the center of gravity of the apparatus body is lower than or equal to a rotation axis center of the apparatus body in a vertical direction viewed in a rotation axis direction of the apparatus body when the apparatus body is in the first position or in the second position.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: May 24, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Seiji Tezuka, Keiichiro Fukumasu, Hidenori Harada, Tomoyuki Mokuo
  • Patent number: 11310388
    Abstract: A scanner includes a reading unit that reads an image of a paper, a medium feeding portion that is capable of selecting a first feeding mode in which a separation feeding for separately feeding a paper bundle in which a plurality of sheets of paper is overlapped with each other is performed and a second feeding mode in which a non-separation feeding for collectively feeding the paper bundle without separating is performed, and a pair of first transporting rollers and a pair of second transporting rollers that transport the paper fed by the medium feeding portion, in a case in which the medium feeding portion feeds the paper in the second feeding mode, a first driven roller and a second driven roller respectively constituting the pair of first transporting rollers and the pair of second transporting rollers are driven in a rotation direction where the paper is transported.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: April 19, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Seiji Tezuka, Noriyuki Koyanagi, Naoki Sakamoto
  • Patent number: 11303775
    Abstract: A scanner includes a reading unit that reads an image of a paper, a medium feeding portion that is capable of selecting a first feeding mode in which a separation feeding for separately feeding a paper bundle in which a plurality of sheets of paper is overlapped with each other is performed and a second feeding mode in which a non-separation feeding for collectively feeding the paper bundle without separating is performed, and a pair of first transporting rollers and a pair of second transporting rollers that transport the paper fed by the medium feeding portion, in a case in which the medium feeding portion feeds the paper in the second feeding mode, a first driven roller and a second driven roller respectively constituting the pair of first transporting rollers and the pair of second transporting rollers are driven in a rotation direction where the paper is transported.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: April 12, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Seiji Tezuka, Noriyuki Koyanagi, Naoki Sakamoto
  • Publication number: 20210243316
    Abstract: An image reading apparatus includes a support section in contact with a mounting surface on which the apparatus is mounted, an apparatus body including a reader, the apparatus body, and a position holding section. The position of the apparatus body can be switched between a first position in which the apparatus body is not in use and a second position in which the apparatus body reads a document using the reader, and in which a projected area of the apparatus body on the mounting surface is larger than that in the first position, and the center of gravity of the apparatus body is lower than or equal to a rotation axis center of the apparatus body in a vertical direction viewed in a rotation axis direction of the apparatus body when the apparatus body is in the first position or in the second position.
    Type: Application
    Filed: February 1, 2021
    Publication date: August 5, 2021
    Inventors: Seiji TEZUKA, Keiichiro FUKUMASU, Hidenori HARADA, Tomoyuki MOKUO
  • Patent number: 11039033
    Abstract: A scanner includes a reading unit that reads an image of a paper, a medium feeding portion that is capable of selecting a first feeding mode in which a separation feeding for separately feeding a paper bundle in which a plurality of sheets of paper is overlapped with each other is performed and a second feeding mode in which a non-separation feeding for collectively feeding the paper bundle without separating is performed, and a pair of first transporting rollers and a pair of second transporting rollers that transport the paper fed by the medium feeding portion, in a case in which the medium feeding portion feeds the paper in the second feeding mode, a first driven roller and a second driven roller respectively constituting the pair of first transporting rollers and the pair of second transporting rollers are driven in a rotation direction where the paper is transported.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: June 15, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Seiji Tezuka, Noriyuki Koyanagi, Naoki Sakamoto
  • Publication number: 20210084186
    Abstract: A scanner includes a reading unit that reads an image of a paper, a medium feeding portion that is capable of selecting a first feeding mode in which a separation feeding for separately feeding a paper bundle in which a plurality of sheets of paper is overlapped with each other is performed and a second feeding mode in which a non-separation feeding for collectively feeding the paper bundle without separating is performed, and a pair of first transporting rollers and a pair of second transporting rollers that transport the paper fed by the medium feeding portion, in a case in which the medium feeding portion feeds the paper in the second feeding mode, a first driven roller and a second driven roller respectively constituting the pair of first transporting rollers and the pair of second transporting rollers are driven in a rotation direction where the paper is transported.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Seiji TEZUKA, Noriyuki Koyanagi, Naoki Sakamoto
  • Publication number: 20210084187
    Abstract: A scanner includes a reading unit that reads an image of a paper, a medium feeding portion that is capable of selecting a first feeding mode in which a separation feeding for separately feeding a paper bundle in which a plurality of sheets of paper is overlapped with each other is performed and a second feeding mode in which a non-separation feeding for collectively feeding the paper bundle without separating is performed, and a pair of first transporting rollers and a pair of second transporting rollers that transport the paper fed by the medium feeding portion, in a case in which the medium feeding portion feeds the paper in the second feeding mode, a first driven roller and a second driven roller respectively constituting the pair of first transporting rollers and the pair of second transporting rollers are driven in a rotation direction where the paper is transported.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Seiji Tezuka, Noriyuki Koyanagi, Naoki Sakamoto
  • Publication number: 20200186665
    Abstract: A scanner includes a reading unit that reads an image of a paper, a medium feeding portion that is capable of selecting a first feeding mode in which a separation feeding for separately feeding a paper bundle in which a plurality of sheets of paper is overlapped with each other is performed and a second feeding mode in which a non-separation feeding for collectively feeding the paper bundle without separating is performed, and a pair of first transporting rollers and a pair of second transporting rollers that transport the paper fed by the medium feeding portion, in a case in which the medium feeding portion feeds the paper in the second feeding mode, a first driven roller and a second driven roller respectively constituting the pair of first transporting rollers and the pair of second transporting rollers are driven in a rotation direction where the paper is transported.
    Type: Application
    Filed: February 18, 2020
    Publication date: June 11, 2020
    Inventors: Seiji TEZUKA, Noriyuki Koyanagi, Naoki Sakamoto
  • Patent number: 10602012
    Abstract: A scanner includes a reading unit that reads an image of a paper, a medium feeding portion that is capable of selecting a first feeding mode in which a separation feeding for separately feeding a paper bundle in which a plurality of sheets of paper is overlapped with each other is performed and a second feeding mode in which a non-separation feeding for collectively feeding the paper bundle without separating is performed, and a pair of first transporting rollers and a pair of second transporting rollers that transport the paper fed by the medium feeding portion, in a case in which the medium feeding portion feeds the paper in the second feeding mode, a first driven roller and a second driven roller respectively constituting the pair of first transporting rollers and the pair of second transporting rollers are driven in a rotation direction where the paper is transported.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: March 24, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Seiji Tezuka, Noriyuki Koyanagi, Naoki Sakamoto
  • Publication number: 20200045194
    Abstract: A scanner includes a reading section configured to read a medium being transported, a discharge roller pair configured to nip the medium read in the reading section by a first roller and a second roller and discharge the medium, and a rib disposed in a position overlapping the discharge roller pair in a medium transport direction, the rib protruding from the first roller side toward the second roller side out of the first roller and the second roller, the rib including a first rib disposed on one side in a width direction intersecting the medium transport direction with respect to the discharge roller pair and a second rib disposed on the opposite side of the first rib in the width direction with respect to the discharge roller pair.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 6, 2020
    Inventor: Seiji TEZUKA
  • Publication number: 20190098163
    Abstract: A scanner includes a reading unit that reads an image of a paper, a medium feeding portion that is capable of selecting a first feeding mode in which a separation feeding for separately feeding a paper bundle in which a plurality of sheets of paper is overlapped with each other is performed and a second feeding mode in which a non-separation feeding for collectively feeding the paper bundle without separating is performed, and a pair of first transporting rollers and a pair of second transporting rollers that transport the paper fed by the medium feeding portion, in a case in which the medium feeding portion feeds the paper in the second feeding mode, a first driven roller and a second driven roller respectively constituting the pair of first transporting rollers and the pair of second transporting rollers are driven in a rotation direction where the paper is transported.
    Type: Application
    Filed: September 27, 2018
    Publication date: March 28, 2019
    Inventors: Seiji TEZUKA, Noriyuki KOYANAGI, Naoki SAKAMOTO
  • Patent number: 10110760
    Abstract: A medium feeding device includes a housing, a medium feeding portion that is provided in an inner portion of the housing and delivers sheets of paper, a medium mounting member on which a medium is mounted, and a wireless communication portion that performs wireless communication with another communication terminal, in which the wireless communication portion is provided in the medium mounting member.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: October 23, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Seiji Tezuka
  • Publication number: 20170279982
    Abstract: A medium feeding device includes a housing, a medium feeding portion that is provided in an inner portion of the housing and delivers sheets of paper, a medium mounting member on which a medium is mounted, and a wireless communication portion that performs wireless communication with another communication terminal, in which the wireless communication portion is provided in the medium mounting member.
    Type: Application
    Filed: March 7, 2017
    Publication date: September 28, 2017
    Inventor: Seiji TEZUKA
  • Patent number: 9199478
    Abstract: A liquid ejection apparatus includes a cover unit that is movable relative to a housing, an ink tank provided outside the housing in a state containing ink, a ink supplying tube in which ink can flow so that ink is supplied from the ink tank to the liquid ejection head, and an insertion hole that allows the ink supplying tube to be inserted into the housing, wherein the housing is formed by a housing portion in which a container that houses a stacker is formed to protrude, and a housing portion which has an operation panel having an inclined surface which protrudes at a position above the container, and the insertion hole is provided on at least one of the housing and the cover unit.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: December 1, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Yuto Suzuki, Nobuhisa Nomoto, Masaki Shimomura, Nobutaka Suzuki, Seiji Tezuka