Patents by Inventor Tomoya OKI

Tomoya OKI 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: 11809098
    Abstract: A cleaning device includes a cleaning member that removes toner from a surface of an image holder by bringing an upper end portion into contact with the surface from a downstream side in a rotation direction of the image holder, a housing that supports the cleaning member and that stores the toner removed from the surface of the image holder by the cleaning member, and a transport member that is provided in the housing and that transports the toner stored in the housing to an outside of the housing at the same height as a contact portion of the cleaning member that comes into contact with the surface of the image holder or at a position above the contact portion.
    Type: Grant
    Filed: September 4, 2022
    Date of Patent: November 7, 2023
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Akira Shimodaira, Tomoya Oki, Naoya Mitamura
  • Publication number: 20230305446
    Abstract: A cleaning device includes a cleaning member that removes toner from a surface of an image holder by bringing an upper end portion into contact with the surface from a downstream side in a rotation direction of the image holder, a housing that supports the cleaning member and that stores the toner removed from the surface of the image holder by the cleaning member, and a transport member that is provided in the housing and that transports the toner stored in the housing to an outside of the housing at the same height as a contact portion of the cleaning member that comes into contact with the surface of the image holder or at a position above the contact portion.
    Type: Application
    Filed: September 4, 2022
    Publication date: September 28, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Akira SHIMODAIRA, Tomoya OKI, Naoya MITAMURA
  • Patent number: 10901347
    Abstract: An intermediate transfer device includes: an endless belt that circulates, receives transfer of a toner image at a first transfer position, and holds the toner image until the toner image reaches a second transfer position at which the toner image is transferred to a transfer receiver; a first cleaning unit that is disposed downstream of the second transfer position and upstream of the first transfer position in a circulation direction of the belt and removes residual toner from the belt after transfer; and a second cleaning unit that is disposed downstream of the first cleaning unit and upstream of the first transfer position in the circulation direction and removes residues from the belt after removal by the first cleaning unit, in which the second cleaning unit includes: a contact cleaning part that extends in a width direction intersecting the circulation direction and is in contact with the belt; and a support guide receiving part that supports the contact cleaning part, and receives a guide for attachme
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: January 26, 2021
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yukihiro Ichiki, Sota Hara, Tomoya Oki
  • Publication number: 20190056677
    Abstract: An image forming apparatus includes an image carrier that holds an electrostatic latent image and a toner image while rotating, a charger that charges the image carrier, an exposure unit that radiates light onto the image carrier to form an electrostatic latent image, a developing unit that develops the electrostatic latent image with toner, a transfer unit that transfers a toner image onto a sheet, a fixing unit that fixes the toner image onto the sheet, a charging-bias power supply that applies charging bias to the charger, a transfer-bias power supply that applies reverse transfer bias to the transfer unit, and a controller that causes the charging-bias power supply to apply the charging bias to the charger, the transfer-bias power supply to apply the reverse transfer bias to the transfer unit, and the exposure unit to radiate the light onto a region of the image carrier.
    Type: Application
    Filed: April 9, 2018
    Publication date: February 21, 2019
    Applicant: FUJI XEROX CO.,LTD.
    Inventors: Tomoya OKI, Hirofumi IIDA
  • Patent number: 9632444
    Abstract: A charging unit includes: a charging member that contacts with an image holding body holding an image and charges a surface of the image holding body; a support member that supports the charging member; and a pressing member that has plural springs that expand and contract in a direction from the support member to the image holding body, and pushes the support member toward the image holding body, and at least two of the plural springs of the pressing member are formed by a single metal wire.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: April 25, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Mikio Yamaguchi, Yosuke Ninomiya, Tomoya Oki, Hiroshi Nishikawa
  • Publication number: 20170090326
    Abstract: A charging unit includes: a charging member that contacts with an image holding body holding an image and charges a surface of the image holding body; a support member that supports the charging member; and a pressing member that has plural springs that expand and contract in a direction from the support member to the image holding body, and pushes the support member toward the image holding body, and at least two of the plural springs of the pressing member are formed by a single metal wire.
    Type: Application
    Filed: January 8, 2016
    Publication date: March 30, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Mikio YAMAGUCHI, Yosuke NINOMIYA, Tomoya OKI, Hiroshi NISHIKAWA
  • Patent number: 9377722
    Abstract: A destaticizing device includes: a first destaticizing member that is disposed at a downstream side in a conveyance direction of a medium relatively to a transfer area where an image held in a surface of an image holder is transferred to the medium, the first destaticizing member being grounded and destaticizing the medium; and a second destaticizing member that is disposed adjacent to the first destaticizing member with respect to the conveyance direction of the medium, the second destaticizing member being grounded and destaticizing the medium.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: June 28, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Makoto Kanai, Wataru Yamada, Kanji Shintaku, Tomoya Oki
  • Publication number: 20160124352
    Abstract: A destaticizing device includes: a first destaticizing member that is disposed at a downstream side in a conveyance direction of a medium relatively to a transfer area where an image held in a surface of an image holder is transferred to the medium, the first destaticizing member being grounded and destaticizing the medium; and a second destaticizing member that is disposed adjacent to the first destaticizing member with respect to the conveyance direction of the medium, the second destaticizing member being grounded and destaticizing the medium.
    Type: Application
    Filed: April 22, 2015
    Publication date: May 5, 2016
    Inventors: Makoto KANAI, Wataru YAMADA, Kanji SHINTAKU, Tomoya OKI