Patents by Inventor Daisuke Haruyama

Daisuke Haruyama 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: 7672615
    Abstract: An image forming apparatus, includes: an intermediate transfer type image forming unit that primarily transfers a toner image formed on an electrophotographic photosensitive member to an intermediate transfer member and then secondarily transfers the toner image from the intermediate transfer member to a printing medium; and a control unit that controls a moving speed ratio ?V represented by Expression 1 depending on a usage history of the electrophotographic photosensitive member, ? ? ? v ? [ % ] = ? v 2 - v 1 ? v 1 × 100 ( 1 ) where V1 is a moving speed [mm/s] of a surface of the electrophotographic photosensitive member; and V2 is a moving speed [mm/s] of a surface of the intermediate transfer member in a moving direction of the surface of the electrophotographic photosensitive member, wherein the electrophotographic photosensitive member comprises a surface layer containing a curable resin on a surface facing to the intermediate transfer member.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: March 2, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Daisuke Haruyama, Yasuhiro Oda
  • Publication number: 20080273897
    Abstract: An electrophotographic photoreceptor includes a conductive support; a photosensitive layer; and a surface protective layer as an outermost layer of the electrophotographic photoreceptor, wherein the electrophotographic photoreceptor satisfies following formulas (a) and (b): 3.6?(A+B)/C×100?6 ??(a) B?0.3 ??(b) wherein A (?m) represents a ten-point-averaged surface roughness RZJIS94 of the conductive support, B (?m) represents a ten-point-averaged surface roughness RZJIS94 of the surface protective layer, and C (%) represents a reflectivity of the surface protective layer against the conductive support.
    Type: Application
    Filed: March 25, 2008
    Publication date: November 6, 2008
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tetsuya Ezumi, Masayuki Nishikawa, Daisuke Haruyama, Hirofumi Nakamura, Kazuyuki Nakamura
  • Publication number: 20080159761
    Abstract: An image forming apparatus, includes: an intermediate transfer type image forming unit that primarily transfers a toner image formed on an electrophotographic photosensitive member to an intermediate transfer member and then secondarily transfers the toner image from the intermediate transfer member to a printing medium; and a control unit that controls a moving speed ratio ?V represented by Expression 1 depending on a usage history of the electrophotographic photosensitive member, ? ? ? v ? [ % ] = ? v 2 - v 1 ? v 1 × 100 ( 1 ) where V1 is a moving speed [mm/s] of a surface of the electrophotographic photosensitive member; and V2 is a moving speed [mm/s] of a surface of the intermediate transfer member in a moving direction of the surface of the electrophotographic photosensitive member, wherein the electrophotographic photosensitive member comprises a surface layer containing a curable resin on a surface facing to the intermediate transfer member.
    Type: Application
    Filed: May 2, 2007
    Publication date: July 3, 2008
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Daisuke Haruyama, Yasuhiro Oda