Patents by Inventor Tsuguhiro Yoshida

Tsuguhiro Yoshida 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).

  • Image forming apparatus comprising a charging unit including plural conductive fibers
    Patent number: 8532531
    Abstract: A charging member that charges residual toner on an intermediate transfer belt is a charging brush constituted by conductive fibers including an electric insulating portion and an electric conductive portion. Part of the outer circumferential surface of each conductive fiber is the conductive portion.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: September 10, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaru Shimura, Masahiro Suzuki, Tsuguhiro Yoshida, Akihiko Uchiyama, Michio Uchida
  • IMAGE FORMING APPARATUS
    Publication number: 20130064583
    Abstract: An image forming apparatus, which is configured to form an image on a sheet, includes an image forming unit configured to form an unfixed toner image on the sheet, and a fixing unit configured to fix the unfixed toner image to the sheet by heating the sheet bearing the unfixed toner image while conveying the sheet by a fixing nip portion. The image forming apparatus can perform a cleaning mode for cleaning the fixing unit by conveying a sheet with an unfixed toner image for cleaning formed thereon by the fixing nip portion. At a time of the cleaning mode, the image forming unit forms the unfixed toner image for cleaning on a sheet surface opposite from a sheet surface where the unfixed toner image is formed at a time of image formation.
    Type: Application
    Filed: August 17, 2012
    Publication date: March 14, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tsuguhiro Yoshida, Akihiko Uchiyama, Hiroyuki Munetsugu, Takaaki Akamatsu, Toshihiko Takayama, Yuya Kojima
  • IMAGE FORMING APPARATUS
    Publication number: 20110150532
    Abstract: A charging member that charges residual toner on an intermediate transfer belt is a charging brush constituted by conductive fibers including an electric insulating portion and an electric conductive portion. Part of the outer circumferential surface of each conductive fiber is the conductive portion.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 23, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masaru Shimura, Masahiro Suzuki, Tsuguhiro Yoshida, Akihiko Uchiyama, Michio Uchida