Patents by Inventor Hidetosi Yano

Hidetosi Yano 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).

  • Cleaning device, process cartridge, and image forming apparatus
    Patent number: 8027628
    Abstract: A blade, including: a cut surface provided by obliquely cutting a part of a tip surface to set an angle forming a tip ridge portion of the blade as an obtuse angle, wherein the tip ridge portion is configured to be pressed to a surface to be cleaned.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: September 27, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuhiko Watanabe, Masahiko Shakuto, Osamu Naruse, Hidetosi Yano
  • CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
    Publication number: 20080286020
    Abstract: A blade, including: a cut surface provided by obliquely cutting a part of a tip surface to set an angle forming a tip ridge portion of the blade as an obtuse angle, wherein the tip ridge portion is configured to be pressed to a surface to be cleaned.
    Type: Application
    Filed: July 23, 2008
    Publication date: November 20, 2008
    Inventors: Kazuhiko WATANABE, Masahiko Shakuto, Osamu Naruse, Hidetosi Yano
  • Cleaning device, process cartridge, and image forming apparatus that include a blade that is pressed against a surface of a rotating member at a surface pressure of 2.0 MPa or more
    Patent number: 7415238
    Abstract: A cleaning device cleans off a toner from a surface of a member rotating in a first direction. The cleaning device includes a blade made of an elastic material including a tip portion with a slanting portion that is pressed against the surface in a second direction counter to the first direction. A supporter supports the blade. An angle between the slanting portion and a longitudinal direction of the blade is obtuse. The slanting portion is pressed against the surface at a surface pressure of 2.0 MPa or more.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: August 19, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuhiko Watanabe, Masahiko Shakuto, Osamu Naruse, Hidetosi Yano
  • Cleaning device, process cartridge, and image forming apparatus
    Publication number: 20060099016
    Abstract: A cleaning device cleans off a toner from a surface of a member rotating in a first direction. The cleaning device includes a blade made of an elastic material including a tip portion with a slanting portion that is pressed against the surface in a second direction counter to the first direction. A supporter supports the blade. An angle between the slanting portion and a longitudinal direction of the blade is obtuse. The slanting portion is pressed against the surface at a surface pressure of 2.0 MPa or more.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 11, 2006
    Inventors: Kazuhiko Watanabe, Masahiko Shakuto, Osamu Naruse, Hidetosi Yano