Patents by Inventor Kensuke Tamai

Kensuke Tamai 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: 10525746
    Abstract: A recording apparatus includes a paper discharging tray constituted of a first tray and a second tray which are capable of being displaced along a medium discharging direction, the paper discharging tray can be stored in the recording apparatus, a motor which drives the paper discharging tray and a transmission unit which transmits power of the motor to the paper discharging tray includes a first gear which comes into contact with the first tray and transmits the power of the motor to the first tray and a second gear which comes into contact with the second tray and transmits the power of the motor to the second tray.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: January 7, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Satoshi Yoshino, Kensuke Tamai, Eiji Taketsugu, Hitoshi Igarashi
  • Patent number: 10375260
    Abstract: There is provided an image reading device including a power transmission unit that transmits power of a driving source to a transportation roller and a discharging roller, in which the power transmission unit is configured to include a first gear group that constitutes a first power transmission route and a second gear group that constitutes a second power transmission route and that is configured to include a smaller number of gears than the first gear group, the second gear group includes a transportation roller driving gear and is disposed inside a curved inversion route as seen from an axial direction of a rotation shaft, and at least a portion of the transportation roller driving gear is positioned inside a medium transportation region in a width direction of a medium.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: August 6, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Kohei Kozaki, Shintaro Miyamoto, Kensuke Tamai
  • Patent number: 10328730
    Abstract: A recording apparatus includes a housing which configures at least a portion of an outside of an apparatus main body which is provided with a recorder which performs recording on a medium, a lid body which opens and closes at least a portion of a top portion of the apparatus main body and is capable of tilting, and a tilting shaft of the lid body, in which the tilting shaft is capable of being displaced in a direction intersecting an axial line direction of the tilting shaft, and in which the lid body is capable of tilting from a closed state in which a gap between the housing and an end portion of an opposite side from a free end side is filled to an opened state by the displacement of the tilting shaft.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: June 25, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Kenichi Shirota, Yoshiyuki Okazawa, Tetsuya Tamura, Kensuke Tamai, Shintaro Miyamoto
  • Patent number: 10248070
    Abstract: There is provided a transportation apparatus in which a first transportation unit, which transports a paper sheet from a mounting portion, starts transportation of a next paper sheet at a time when a specific time has elapsed after the second transportation unit, which is positioned on a downstream side of the first transportation unit, starts to transport a paper sheet so that an inter-sheet distance between a preceding paper sheet and a following paper sheet becomes optimal.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: April 2, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Yohei Nunokawa, Yasuhiko Yoshihisa, Takayuki Tanaka, Kohei Kozaki, Kensuke Tamai
  • Patent number: 10222734
    Abstract: A moving-side roller reliably separates from a stationary-side roller so as to enable appropriate document transport. An image reading apparatus causes a roller support member supporting the moving-side roller to come into contact with the stationary-side roller. A contact state and a separation state can be switched. The image reading apparatus includes an external force providing portion to exert a third external force on the roller support member in a direction for restraining warping that is generated in the roller support member by a first external force that a cam exerts on the roller support member and by a second external force that an urging device exerts on the roller support member.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: March 5, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Kohei Kozaki, Kensuke Tamai, Shinji Kanemaru, Hitoshi Igarashi
  • Publication number: 20190016138
    Abstract: A recording apparatus includes an electric field forming section including a conductive member and configured to form an electric field, and the conductive member includes at least one first portion and a second portion, each of the at least one first portion being disposed at a position being nearer the recording head than a position of the second portion and included in a corresponding one of at least one liquid discarding region each of which, in an execution of borderless recording, is used for the ejection of the liquid onto an outside of a corresponding one of at least one edge whose position corresponds to each of at least one predetermined size of a medium, the second portion being disposed in a recording region other than the at least one liquid discarding region.
    Type: Application
    Filed: July 9, 2018
    Publication date: January 17, 2019
    Inventors: Tatsuya ITO, Satoshi YOSHINO, Makoto SATO, Kensuke TAMAI
  • Publication number: 20180316810
    Abstract: There is provided an image reading device including a power transmission unit that transmits power of a driving source to a transportation roller and a discharging roller, in which the power transmission unit is configured to include a first gear group that constitutes a first power transmission route and a second gear group that constitutes a second power transmission route and that is configured to include a smaller number of gears than the first gear group, the second gear group includes a transportation roller driving gear and is disposed inside a curved inversion route as seen from an axial direction of a rotation shaft, and at least a portion of the transportation roller driving gear is positioned inside a medium transportation region in a width direction of a medium.
    Type: Application
    Filed: April 24, 2018
    Publication date: November 1, 2018
    Inventors: Kohei KOZAKI, Shintaro MIYAMOTO, Kensuke TAMAI
  • Publication number: 20180272763
    Abstract: A recording apparatus includes a paper discharging tray constituted of a first tray and a second tray which are capable of being displaced along a medium discharging direction, the paper discharging tray can be stored in the recording apparatus, a motor which drives the paper discharging tray and a transmission unit which transmits power of the motor to the paper discharging tray includes a first gear which comes into contact with the first tray and transmits the power of the motor to the first tray and a second gear which comes into contact with the second tray and transmits the power of the motor to the second tray.
    Type: Application
    Filed: March 7, 2018
    Publication date: September 27, 2018
    Inventors: Satoshi YOSHINO, Kensuke TAMAI, Eiji TAKETSUGU, Hitoshi IGARASHI
  • Patent number: 9986116
    Abstract: An image scanning apparatus includes a document table that forms a document mounting surface, a cover body that covers and uncovers the document table, and a hinge mechanism which has an angle retainer that retains an opening angle of the cover body and which allows the cover body to be lifted up and down. The hinge mechanism includes a case that is inserted into an insertion portion provided in the document table so that the case is displaceable in lift up/down directions of the cover body. The case includes an arm portion which extends in a direction that includes a lift up/down direction component and which is elastically deformable in a direction that intersects the lift up/down directions. The arm portion elastically contacts a contact portion provided in the insertion portion so that the cover body is retained in position in the lift up/down directions.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: May 29, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiyuki Okazawa, Kensuke Tamai, Hitoshi Igarashi
  • Patent number: 9948799
    Abstract: An image reading apparatus includes a medium reading unit that extends in a main scanning direction and reads an image of a medium while moving in a sub-scanning direction which is a direction crossing the main scanning direction; a signal transmission cable that is a flexible cable having a curved section and connected to the medium reading unit and that deforms following a movement of the medium reading unit; a power supply that supplies power to the medium reading unit; and a housing that accommodates the medium reading unit and the power supply. At least a portion of an insertion/extraction space for inserting/extracting a plug of a power cable from outside the housing to the power supply and at least a portion of an area where the signal transmission cable deforms following the movement of the medium reading unit overlap in a height direction of the medium reading unit.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: April 17, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Kohei Kozaki, Kensuke Tamai
  • Publication number: 20180004144
    Abstract: A moving-side roller reliably separates from a stationary-side roller so as to enable appropriate document transport. An image reading apparatus causes a roller support member supporting the moving-side roller to come into contact with the stationary-side roller. A contact state and a separation state can be switched. The image reading apparatus includes an external force providing portion to exert a third external force on the roller support member in a direction for restraining warping that is generated in the roller support member by a first external force that a cam exerts on the roller support member and by a second external force that an urging device exerts on the roller support member.
    Type: Application
    Filed: June 23, 2017
    Publication date: January 4, 2018
    Inventors: Kohei KOZAKI, Kensuke TAMAI, Shinji KANEMARU, Hitoshi IGARASHI
  • Publication number: 20170361634
    Abstract: A recording apparatus includes a housing which configures at least a portion of an outside of an apparatus main body which is provided with a recorder which performs recording on a medium, a lid body which opens and closes at least a portion of a top portion of the apparatus main body and is capable of tilting, and a tilting shaft of the lid body, in which the tilting shaft is capable of being displaced in a direction intersecting an axial line direction of the tilting shaft, and in which the lid body is capable of tilting from a closed state in which a gap between the housing and an end portion of an opposite side from a free end side is filled to an opened state by the displacement of the tilting shaft.
    Type: Application
    Filed: June 16, 2017
    Publication date: December 21, 2017
    Inventors: Kenichi SHIROTA, Yoshiyuki OKAZAWA, Tetsuya TAMURA, Kensuke TAMAI, Shintaro MIYAMOTO
  • Patent number: 9751341
    Abstract: A recording apparatus includes a recording head, a medium support portion which supports, at a support surface, a recording medium in a recording region by the recording head, and a base portion to which the medium support portion is attached in a state of being movable in a direction toward the support surface while being biased in a direction intersecting the support surface.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: September 5, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Satoshi Yoshino, Kensuke Tamai
  • Publication number: 20170227908
    Abstract: There is provided a transportation apparatus in which a first transportation unit, which transports a paper sheet from a mounting portion, starts transportation of a next paper sheet at a time when a specific time has elapsed after the second transportation unit, which is positioned on a downstream side of the first transportation unit, starts to transport a paper sheet so that an inter-sheet distance between a preceding paper sheet and a following paper sheet becomes optimal.
    Type: Application
    Filed: January 23, 2017
    Publication date: August 10, 2017
    Inventors: Yohei NUNOKAWA, Yasuhiko YOSHIHISA, Takayuki TANAKA, Kohei KOZAKI, Kensuke TAMAI
  • Publication number: 20170155782
    Abstract: An image scanning apparatus includes a document table that forms a document mounting surface, a cover body that covers and uncovers the document table, and a hinge mechanism which has an angle retainer that retains an opening angle of the cover body and which allows the cover body to be lifted up and down. The hinge mechanism includes a case that is inserted into an insertion portion provided in the document table so that the case is displaceable in lift up/down directions of the cover body. The case includes an arm portion which extends in a direction that includes a lift up/down direction component and which is elastically deformable in a direction that intersects the lift up/down directions. The arm portion elastically contacts a contact portion provided in the insertion portion so that the cover body is retained in position in the lift up/down directions.
    Type: Application
    Filed: November 30, 2016
    Publication date: June 1, 2017
    Inventors: Yoshiyuki OKAZAWA, Kensuke TAMAI, Hitoshi IGARASHI
  • Publication number: 20170142270
    Abstract: An image reading apparatus includes a medium reading unit that extends in a main scanning direction and reads an image of a medium while moving in a sub-scanning direction which is a direction crossing the main scanning direction; a signal transmission cable that is a flexible cable having a curved section and connected to the medium reading unit and that deforms following a movement of the medium reading unit; a power supply that supplies power to the medium reading unit; and a housing that accommodates the medium reading unit and the power supply. At least a portion of an insertion/extraction space for inserting/extracting a plug of a power cable from outside the housing to the power supply and at least a portion of an area where the signal transmission cable deforms following the movement of the medium reading unit overlap in a height direction of the medium reading unit.
    Type: Application
    Filed: November 15, 2016
    Publication date: May 18, 2017
    Inventors: Kohei KOZAKI, Kensuke TAMAI
  • Patent number: 9332143
    Abstract: An image reading apparatus includes an image reading unit that is reciprocally movable in a predetermined direction; a guide member that supports the image reading unit and guides the image reading unit in the predetermined direction; a first cable that is fixed to the image reading unit at one end of the first cable and is deformable in accordance with a movement of the image reading unit; and a second cable that is fixed to the image reading unit at one end of the second cable and is deformable in accordance with the movement of the image reading unit, wherein the first cable and the second cable are provided such that a rotation moment of the image reading unit generated by a reaction force of the first cable and a rotation moment of the image reading unit generated by a reaction force of the second cable cancel each other out.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: May 3, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Kensuke Tamai
  • Publication number: 20160014289
    Abstract: An image reading apparatus includes an image reading unit that is reciprocally movable in a predetermined direction; a guide member that supports the image reading unit and guides the image reading unit in the predetermined direction; a first cable that is fixed to the image reading unit at one end of the first cable and is deformable in accordance with a movement of the image reading unit; and a second cable that is fixed to the image reading unit at one end of the second cable and is deformable in accordance with the movement of the image reading unit, wherein the first cable and the second cable are provided such that a rotation moment of the image reading unit generated by a reaction force of the first cable and a rotation moment of the image reading unit generated by a reaction force of the second cable cancel each other out.
    Type: Application
    Filed: July 9, 2015
    Publication date: January 14, 2016
    Inventor: Kensuke TAMAI
  • Patent number: 9227804
    Abstract: A recording apparatus includes: a recording section that performs recording on a recording medium; a driving roller disposed in a transportation path; a plurality of driven rollers driven to rotate by abutting against the driving roller, and biased to the driving roller; and a frame defining positions of the driven rollers. A biasing member that biases driven rollers applies a biasing force including a first direction component that is in the transportation direction to the frame in a state of being mounted thereon. At least a part of the driven rollers are disposed by being deviated in the position thereof in a second direction opposite to the first direction in a state where the biasing member is not mounted thereon.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: January 5, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Kensuke Tamai, Hidefumi Minemura
  • Patent number: 9180694
    Abstract: A recording apparatus includes a recording head that performs recording on a recording medium, a medium support member that is disposed at a position where the medium support member can face the recording head and supports the recording medium, and a reinforcing member that is attached below the medium support member and has a greater rigidity than the medium support member. The medium support member includes a rigidity reduction unit that reduces the rigidity of the medium support member in a direction intersecting a transport direction of the recording medium.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: November 10, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Satoshi Yoshino, Kensuke Tamai