Patents by Inventor Eiki YAMADA

Eiki YAMADA 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: 11866276
    Abstract: A medium conveying apparatus includes a main body, a placement board that is movably supported by the main body, an extension member that is movably supported by the placement board, a lever that is movably supported by the placement board, and a mechanism that moves the extension member to a contraction position when the lever is located at a protrusion position, and moves the extension member to an expansion position when the lever is located at a pushed position, wherein the lever is away from an abutting portion fixed to the main body when the placement board is located between a storage position and a midway position, and the lever comes into contact with the abutting portion and moves toward the pushed position when the placement board is located between a unfolding position and the midway position and when the placement board moves toward the unfolding position.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: January 9, 2024
    Assignee: PFU LIMITED
    Inventor: Eiki Yamada
  • Patent number: 11729332
    Abstract: An imaging device includes a light source unit located so as to be inclined with respect to a medium conveying surface or a medium placing surface. The light source unit includes a light emitting element, a light guide provided with the light emitting element on a first end surface side, to guide light emitted from the light emitting element in a predetermined direction, and emit the light toward the medium from an emitting surface extending in the predetermined direction, and a reflector located around the light guide other than the emitting surface. The light guide includes a light diffusing surface on an opposite side to the emitting surface. The reflector does not cover a second end surface opposite to the first end surface of the light guide. A medium side surface of the reflector is located so as to protrude from the second end surface of the light guide.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: August 15, 2023
    Assignee: PFU LIMITED
    Inventors: Eiki Yamada, Kengo Nakano
  • Publication number: 20220289506
    Abstract: A medium conveying apparatus includes a main body, a placement board that is movably supported by the main body, an extension member that is movably supported by the placement board, a lever that is movably supported by the placement board, and a mechanism that moves the extension member to a contraction position when the lever is located at a protrusion position, and moves the extension member to an expansion position when the lever is located at a pushed position, wherein the lever is away from an abutting portion fixed to the main body when the placement board is located between a storage position and a midway position, and the lever comes into contact with the abutting portion and moves toward the pushed position when the placement board is located between a unfolding position and the midway position and when the placement board moves toward the unfolding position.
    Type: Application
    Filed: January 4, 2022
    Publication date: September 15, 2022
    Inventor: Eiki YAMADA
  • Publication number: 20220166897
    Abstract: An imaging device includes a light source unit located so as to be inclined with respect to a medium conveying surface or a medium placing surface. The light source unit includes a light emitting element, a light guide provided with the light emitting element on a first end surface side, to guide light emitted from the light emitting element in a predetermined direction, and emit the light toward the medium from an emitting surface extending in the predetermined direction, and a reflector located around the light guide other than the emitting surface. The light guide includes a light diffusing surface on an opposite side to the emitting surface. The reflector does not cover a second end surface opposite to the first end surface of the light guide. A medium side surface of the reflector is located so as to protrude from the second end surface of the light guide.
    Type: Application
    Filed: September 13, 2021
    Publication date: May 26, 2022
    Inventors: Eiki Yamada, Kengo Nakano
  • Patent number: 10843890
    Abstract: A tray device includes a first tray including a first surface and an abutting portion, and a second tray including a second surface and an abutted portion. The second tray is configured to move with respect to the first tray. The abutting portion includes two abutting surfaces located obliquely with respect to an extending direction of the first surface. The abutted portion includes two abutted surfaces located obliquely with respect to an extending direction of the second surface. A difference between an angle formed by each of the two abutting surfaces and the extending direction of the first surface and an angle formed by each of the two abutted surfaces and the extending direction of the second surface is set larger than a maximum angular difference between the extending direction of the first surface and a movement direction in which the second tray moves with respect to the first tray.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: November 24, 2020
    Assignee: PFU LIMITED
    Inventors: Eiki Yamada, Masaya Takamori
  • Publication number: 20190270608
    Abstract: A tray device includes a first tray including a first surface and an abutting portion, and a second tray including a second surface and an abutted portion. The second tray is configured to move with respect to the first tray. The abutting portion includes two abutting surfaces located obliquely with respect to an extending direction of the first surface. The abutted portion includes two abutted surfaces located obliquely with respect to an extending direction of the second surface. A difference between an angle formed by each of the two abutting surfaces and the extending direction of the first surface and an angle formed by each of the two abutted surfaces and the extending direction of the second surface is set larger than a maximum angular difference between the extending direction of the first surface and a movement direction in which the second tray moves with respect to the first tray.
    Type: Application
    Filed: November 27, 2018
    Publication date: September 5, 2019
    Inventors: Eiki YAMADA, Masaya TAKAMORI