Patents by Inventor Junichi Ushikubo

Junichi Ushikubo 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: 20120128391
    Abstract: A developer collection container includes: a container body capable of containing collected developer; a developer conveyance member extending into the developer collection container and configured to convey the developer into the container body; and a guide provided in the container body and supporting the developer conveyance member from below the developer conveyance member.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 24, 2012
    Applicant: OKI DATA CORPORATION
    Inventor: Junichi USHIKUBO
  • Publication number: 20120114392
    Abstract: A developer storage body includes a housing in which a developer is stored, a shutter portion mounted to the housing and having a hole portion through which the developer is replenished into the housing, and a cap portion covering the hole portion. The cap portion includes a structural portion that constitutes an enclosure body enclosing a hollow portion. The structural portion is formed of a first material. The cap portion further includes a seal portion that covers the structural portion to seal the hollow portion. The seal portion is formed of a second material having a lower flexural modulus than the first material.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 10, 2012
    Applicant: Oki Data Corporation
    Inventor: Junichi USHIKUBO
  • Patent number: 8131200
    Abstract: A cleaning device includes a cleaning member for removing developer attached to a developer attaching member; a rotation carrying member which is rotatably configured to carry the developer that is removed by the cleaning member; a housing member for housing the developer that is removed by the cleaning member and configured as a part of a developer housing part that surrounds the rotation carrying member; and an elastic member arranged to contact a periphery of the rotation carrying member.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: March 6, 2012
    Assignee: Oki Data Corporation
    Inventor: Junichi Ushikubo
  • Patent number: 8032038
    Abstract: A developing device includes a storage portion for retaining developer; a light guide member for forming a plurality of optical paths passing through the storage unit to detect an amount of the developer in the storage portion; a plurality of window members formed in a wall of the storage portion for passing the optical paths therethrough; a blocking member disposed to be movable for blocking the window members; and a drive unit for moving the blocking member. The blocking member is disposed on each of the optical paths. When the drive unit moves the blocking member, the blocking member periodically blocks and opens each of the optical paths in a specific cycle.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: October 4, 2011
    Assignee: Oki Data Corporation
    Inventor: Junichi Ushikubo
  • Patent number: 7668482
    Abstract: An image forming apparatus that is capable of solving the problem of abrasion or load caused by an unevenly installed cleaning member and capable of realizing excellent cleaning performance. A cleaning section in the image forming apparatus has a cleaning member in the shape of a board, which contacts the surface of the charging roller through it's a first surface, and a fixing member, which supports the cleaning member at least at an upstream side of a contact position between the charging roller and the cleaning member with respect to the rotation direction of the charging roller. The fixing member is formed so as to not contact the cleaning member in an area of a second surface which is opposite to the contact part of the charging roller and the cleaning member.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: February 23, 2010
    Assignee: Oki Data Corporation
    Inventor: Junichi Ushikubo
  • Publication number: 20090232559
    Abstract: A cleaning device includes a cleaning member for removing developer attached to a developer attaching member; a rotation carrying member which is rotatably configured to carry the developer that is removed by the cleaning member; a housing member for housing the developer that is removed by the cleaning member and configured as a part of a developer housing part that surrounds the rotation carrying member; and an elastic member arranged to contact a periphery of the rotation carrying member.
    Type: Application
    Filed: March 11, 2009
    Publication date: September 17, 2009
    Applicant: OKI Data Corporation
    Inventor: Junichi Ushikubo
  • Publication number: 20080286005
    Abstract: A developing device includes a storage portion for retaining developer; a light guide member for forming a plurality of optical paths passing through the storage unit to detect an amount of the developer in the storage portion; a plurality of window members formed in a wall of the storage portion for passing the optical paths therethrough; a blocking member disposed to be movable for blocking the window members; and a drive unit for moving the blocking member. The blocking member is disposed on each of the optical paths. When the drive unit moves the blocking member, the blocking member periodically blocks and opens each of the optical paths in a specific cycle.
    Type: Application
    Filed: May 8, 2008
    Publication date: November 20, 2008
    Inventor: Junichi Ushikubo
  • Publication number: 20070189800
    Abstract: An image forming apparatus is provided capable of solving such problem of abrasion or load caused by the unevenness of installation position of cleaning member and capable of realizing excellent cleaning performance. A cleaning section in the image forming apparatus has a cleaning member with board shape which contacts with the surface of the charging roller through it's a first surface; and a fixing member which supports the cleaning member at least at an upstream side than a contact position between the charging roller and the cleaning member with respect to the rotation direction of the charging roller, the fixing member is formed so as to not contact with the cleaning member in an area of a second surface which is opposite to the contact part of the charging roller and the cleaning member.
    Type: Application
    Filed: January 22, 2007
    Publication date: August 16, 2007
    Applicant: OKI DATA CORPORATION
    Inventor: Junichi USHIKUBO
  • Patent number: D674004
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: January 8, 2013
    Assignee: Oki Data Corporation
    Inventors: Tatsuhiko Shimomura, Osamu Teramura, Junichi Ushikubo
  • Patent number: D674005
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: January 8, 2013
    Assignee: Oki Data Corporation
    Inventors: Osamu Teramura, Tatsuhiko Shimomura, Junichi Ushikubo
  • Patent number: D674007
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: January 8, 2013
    Assignee: Oki Data Corporation
    Inventors: Junichi Ushikubo, Tatsuhiko Shimomura, Osamu Teramura