Patents by Inventor Koji Migita

Koji Migita 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: 11814255
    Abstract: A medium-transporting device includes: a medium-mounting section on which a medium is mounted; a feeding unit that includes a feeding roller and that is configured to be displaced between a contact posture and a separation posture; a first restricting member that is provided downstream of the feeding roller in the transport direction and that is configured to switch between a restriction posture in which the first restricting member restricts movement of the medium and a retreat posture in which the first restricting member permits the movement of the medium; a first motor configured to generate power for rotating the feeding roller; and a second motor configured to generate power for switching a posture of the first restricting member, in which an operation of rotating the feeding roller and an operation of switching the first restricting member from the restriction posture to the retreat posture are performed in parallel.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: November 14, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Koji Migita, Kazuya Yoshikaie, Hiromichi Kitsuki
  • Patent number: 11691832
    Abstract: A medium transport device includes a feeding unit that can be disposed at a contact position and a retracted position, a first restriction member that rotates between a restriction position and a release position, and a transport guide positioned on a side opposite to the feeding unit with a transport path interposed therebetween. When the first restriction member is positioned at the restriction position, the first restriction member maintains a state in which the feeding unit is positioned at the retracted position by the tip end contacting the feeding unit. When the first restriction member is positioned at the restriction position, the tip end thereof is positioned closer to the mounting portion side than the position of the rotation axis of the first restriction member in the transport direction.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: July 4, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Koji Migita, Seiji Kawabata
  • 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
  • Publication number: 20220394148
    Abstract: An image reading apparatus includes a platen on which a document is to be placed, an image sensor configured to read an image of the document on the platen, an opening/closing member configured to cover and uncover the platen, a document pressing layer disposed on a surface of the opening/closing member and configured to press the document on the plate when the opening/closing member covers the platen, elastic layers located between the document pressing layer and the opening/closing member and spaced apart from each other on a surface of the document pressing layer, and connection layers connecting the elastic layers to the opening/closing member. An area of the elastic layer is larger than an area of the connection layer.
    Type: Application
    Filed: August 11, 2022
    Publication date: December 8, 2022
    Inventors: Koji MIGITA, Yutaro KAJITANI, Masato OGAWA
  • Patent number: 11463601
    Abstract: An image reading apparatus includes a platen on which a document is to be placed, an image sensor configured to read an image of the document on the platen, an opening/closing member configured to cover and uncover the platen, a document pressing layer disposed on a surface of the opening/closing member and configured to press the document on the plate when the opening/closing member covers the platen, elastic layers located between the document pressing layer and the opening/closing member and spaced apart from each other on a surface of the document pressing layer, and connection layers connecting the elastic layers to the opening/closing member. An area of the elastic layer is larger than an area of the connection layer.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: October 4, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Koji Migita, Yutaro Kajitani, Masato Ogawa
  • Publication number: 20220144568
    Abstract: A medium-transporting device includes: a medium-mounting section on which a medium is mounted; a feeding unit that includes a feeding roller and that is configured to be displaced between a contact posture and a separation posture; a first restricting member that is provided downstream of the feeding roller in the transport direction and that is configured to switch between a restriction posture in which the first restricting member restricts movement of the medium and a retreat posture in which the first restricting member permits the movement of the medium; a first motor configured to generate power for rotating the feeding roller; and a second motor configured to generate power for switching a posture of the first restricting member, in which an operation of rotating the feeding roller and an operation of switching the first restricting member from the restriction posture to the retreat posture are performed in parallel.
    Type: Application
    Filed: November 8, 2021
    Publication date: May 12, 2022
    Inventors: Koji MIGITA, Kazuya YOSHIKAIE, Hiromichi KITSUKI
  • Patent number: 11214454
    Abstract: A medium feeding device includes a medium feeding mechanism switching between a first state in which the medium is fed from the feeding tray and a second state in which the medium is not fed from the feeding tray, a feeding roller rotationally driven in a forward rotation direction, and a separation roller that is rotationally driven in the reverse rotation direction when the feeding roller is rotationally driven in the forward rotation direction, wherein when the separation roller is rotationally driven in the forward rotation direction, the feeding roller is configured to be passively rotatable with respect to the separation roller, and wherein a rotation direction of the first motor when the cam member switches the medium feeding mechanism from the first state to the second state is the same as a rotation direction of the first motor when the separation roller rotates in the forward rotation direction.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: January 4, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Hiroyuki Tajima, Koji Migita
  • Publication number: 20210130119
    Abstract: A medium transport device includes a feeding unit that can be disposed at a contact position and a retracted position, a first restriction member that rotates between a restriction position and a release position, and a transport guide positioned on a side opposite to the feeding unit with a transport path interposed therebetween. When the first restriction member is positioned at the restriction position, the first restriction member maintains a state in which the feeding unit is positioned at the retracted position by the tip end contacting the feeding unit. When the first restriction member is positioned at the restriction position, the tip end thereof is positioned closer to the mounting portion side than the position of the rotation axis of the first restriction member in the transport direction.
    Type: Application
    Filed: October 28, 2020
    Publication date: May 6, 2021
    Inventors: Koji MIGITA, Seiji KAWABATA
  • Publication number: 20210014378
    Abstract: An image reading apparatus includes a platen on which a document is to be placed, an image sensor configured to read an image of the document on the platen, an opening/closing member configured to cover and uncover the platen, a document pressing layer disposed on a surface of the opening/closing member and configured to press the document on the plate when the opening/closing member covers the platen, elastic layers located between the document pressing layer and the opening/closing member and spaced apart from each other on a surface of the document pressing layer, and connection layers connecting the elastic layers to the opening/closing member. An area of the elastic layer is larger than an area of the connection layer.
    Type: Application
    Filed: July 9, 2020
    Publication date: January 14, 2021
    Inventors: Koji MIGITA, Yutaro KAJITANI, Masato OGAWA
  • Publication number: 20200039771
    Abstract: A medium feeding device includes a medium feeding mechanism switching between a first state in which the medium is fed from the feeding tray and a second state in which the medium is not fed from the feeding tray, a feeding roller rotationally driven in a forward rotation direction, and a separation roller that is rotationally driven in the reverse rotation direction when the feeding roller is rotationally driven in the forward rotation direction, wherein when the separation roller is rotationally driven in the forward rotation direction, the feeding roller is configured to be passively rotatable with respect to the separation roller, and wherein a rotation direction of the first motor when the cam member switches the medium feeding mechanism from the first state to the second state is the same as a rotation direction of the first motor when the separation roller rotates in the forward rotation direction.
    Type: Application
    Filed: July 26, 2019
    Publication date: February 6, 2020
    Inventors: Hiroyuki TAJIMA, Koji MIGITA
  • Publication number: 20200039775
    Abstract: A medium feeding apparatus includes a curved path that is a medium feeding path formed between a first pair of feeding rollers and a second pair of feeding rollers. The medium is transported along the curved path while being curved downward. The medium feeding apparatus further includes an accommodating portion formed outside a curve of the curved path and configured to accommodate a deformed part of the medium at the curved path. The first pair of feeding rollers is provided at a center area in a medium width direction intersecting with a medium feeding direction. The accommodating portion has a pushing member configured to push the deformed part of the medium upstream in the medium feeding direction.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 6, 2020
    Inventors: Masahiro ISONO, Keiichiro FUKUMASU, Koji MIGITA
  • Patent number: 10409686
    Abstract: An apparatus includes first and second circuits that transmit and receive information to and from each other through first paths, where each of the first and second circuits includes second paths respectively coupled to the first paths, and matrix switches that are provided across the second paths and switch a transmission path of information transmitted to any one of the second paths. Upon detecting an error in the second paths, the apparatus conducts a loop-back test in which each matrix switch is switched to a loop-back state in which information to be transmitted to the second path in which the error has been detected, is looped back. Upon detecting an error in the loop-back test, the apparatus switches the matrix switches to a bypass state in which the second path in which the error is detected is bypassed to another one of the second paths to continue the loop-back test.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: September 10, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Masazumi Maeda, Koji Migita
  • Patent number: 10214035
    Abstract: Provided are a recording apparatus, when a medium is discharged from a recording apparatus main body, which can achieve both of appropriate mounting of a medium in which the leading edge thereof is curled on a medium receiving tray, and reduction of damage to a medium when mediums of different sizes are mixed on the medium receiving tray.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: February 26, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Ue, Koji Migita, Satoshi Iwaya, Yasushi Akatsuka, Hiroshi Shiohara
  • Patent number: 10120327
    Abstract: A recording apparatus includes a recording mechanism unit, an opening/closing unit that is rotatably coupled to the recording mechanism unit in an upper portion of the recording mechanism unit, an operation unit which is arranged to face a circumferential edge of the opening/closing unit and is able to have a coupling state in which the operation unit and the opening/closing unit are coupled together and a released state in which the coupling state is released, a cable that connects a control unit with the operation unit, and a support means which is provided in the recording mechanism unit and which supports the operation unit that is in the released state and is connected to the control unit by the cable in a state in which a distance between the operation unit and the circumferential edge of the opening/closing unit is greater than that in the coupling state.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: November 6, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Shiohara, Satoshi Iwaya, Koji Migita, Hiroyuki Yoda
  • Publication number: 20180147864
    Abstract: Provided are a recording apparatus, when a medium is discharged from a recording apparatus main body, which can achieve both of appropriate mounting of a medium in which the leading edge thereof is curled on a medium receiving tray, and reduction of damage to a medium when mediums of different sizes are mixed on the medium receiving tray.
    Type: Application
    Filed: November 7, 2017
    Publication date: May 31, 2018
    Inventors: Hiroshi UE, Koji MIGITA, Satoshi IWAYA, Yasushi AKATSUKA, Hiroshi SHIOHARA
  • Publication number: 20180137008
    Abstract: An apparatus includes first and second circuits that transmit and receive information to and from each other through first paths, where each of the first and second circuits includes second paths respectively coupled to the first paths, and matrix switches that are provided across the second paths and switch a transmission path of information transmitted to any one of the second paths. Upon detecting an error in the second paths, the apparatus conducts a loop-back test in which each matrix switch is switched to a loop-back state in which information to be transmitted to the second path in which the error has been detected, is looped back. Upon detecting an error in the loop-back test, the apparatus switches the matrix switches to a bypass state in which the second path in which the error is detected is bypassed to another one of the second paths to continue the loop-back test.
    Type: Application
    Filed: October 25, 2017
    Publication date: May 17, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Masazumi Maeda, Koji Migita
  • Patent number: 9834019
    Abstract: A recording apparatus includes: a recording mechanism unit; an opening/closing unit that opens and closes the top portion of the recording mechanism unit; and a support member that holds the opening/closing unit in an opening state. The support member includes a first link portion that is rotatably connected to the opening/closing unit, a second link portion that is rotatably connected to the first link portion and that is rotatably connected to the recording mechanism unit, a first locking mechanism that holds the opening/closing unit in the opening state at a first angle, and a second locking mechanism that does not hold the opening/closing unit in the opening state at a second angle which is smaller than the first angle.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: December 5, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Koji Migita, Masaki Shimomura, Toshihiro Imae
  • Publication number: 20170190193
    Abstract: A recording apparatus includes: a recording mechanism unit; an opening/closing unit that opens and closes the top portion of the recording mechanism unit; and a support member that holds the opening/closing unit in an opening state. The support member includes a first link portion that is rotatably connected to the opening/closing unit, a second link portion that is rotatably connected to the first link portion and that is rotatably connected to the recording mechanism unit, a first locking mechanism that holds the opening/closing unit in the opening state at a first angle, and a second locking mechanism that does not hold the opening/closing unit in the opening state at a second angle which is smaller than the first angle.
    Type: Application
    Filed: December 21, 2016
    Publication date: July 6, 2017
    Inventors: Koji MIGITA, Masaki SHIMOMURA, Toshihiro IMAE
  • Publication number: 20170192385
    Abstract: A recording apparatus includes a recording mechanism unit, an opening/closing unit that is rotatably coupled to the recording mechanism unit in an upper portion of the recording mechanism unit, an operation unit which is arranged to face a circumferential edge of the opening/closing unit and is able to have a coupling state in which the operation unit and the opening/closing unit are coupled together and a released state in which the coupling state is released, a cable that connects a control unit with the operation unit, and a support means which is provided in the recording mechanism unit and which supports the operation unit that is in the released state and is connected to the control unit by the cable in a state in which a distance between the operation unit and the circumferential edge of the opening/closing unit is greater than that in the coupling state.
    Type: Application
    Filed: December 29, 2016
    Publication date: July 6, 2017
    Inventors: Hiroshi SHIOHARA, Satoshi IWAYA, Koji MIGITA, Hiroyuki YODA
  • Patent number: 9160327
    Abstract: A semiconductor device including an input terminal to receive an input signal and an output terminal to output an output signal includes delay elements connected in series with the input terminal and each to assign the delay to the input signal input from the input terminal, selectors connected to output sides of the delay elements and each to select one of output signals of the delay elements based on a selection signal for selecting the one of the output signals of the delay elements to return the selected one of the output signals to the output terminal, and delay circuits disposed corresponding to the selectors and each to cause switching of the selection signal input into a corresponding one of the selectors to occur after switching of a signal level of the input signal input into the corresponding one of the selectors serving as a signal turning point.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: October 13, 2015
    Assignee: FUJITSU LIMITED
    Inventors: Masaki Fujioka, Koji Migita, Kazumasa Kubotera, Yasutaka Kanayama