Patents by Inventor Keizo Yasuda

Keizo Yasuda 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).

  • Print/copy control system including a processing unit with a display unit for displaying a listing of advice information for comparison
    Patent number: 8705058
    Abstract: A print/copy control system including a processing unit which includes a first unit that receives a set of print/copy conditions selected by a user, a second unit that receives a standard set of print/copy conditions of an image forming device designated by the user, a third unit that receives other selectable sets of print/copy conditions of the image forming device, and a display unit that displays a listing of each of the standard set of print/copy conditions of the image forming device, the set of print/copy conditions selected by the user, and the other selectable sets of print/copy conditions of the image forming device for comparison.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: April 22, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Keizo Yasuda
  • Image forming apparatus, fixing unit, and image forming method with improved heating mechanism
    Patent number: 8131198
    Abstract: An image forming apparatus includes an image forming mechanism to form a toner image on a recording medium according to image data and a fixing mechanism to fix the toner image on the recording medium. The fixing mechanism includes a fixing member and an external heater. The fixing member applies heat to the recording medium having the toner image. The external heater heats the fixing member and is formed in a shape corresponding to a surface of the fixing member. The external heater is disposed as if to engage and yet be spaced apart from the fixing member by a distance which is variable according to movement of the external heater.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: March 6, 2012
    Assignee: Ricoh Co., Ltd.
    Inventors: Kenji Ishii, Keizo Yasuda, Akiyasu Amita, Kenichi Hasegawa, Yasuhiro Kohira, Yasutada Tsukioka, Masaya Shitami, Satoshi Ueno
  • PRINT/COPY CONTROL SYSTEM
    Publication number: 20110317196
    Abstract: A print/copy control system including a processing unit which includes a first unit that receives a set of print/copy conditions selected by a user, a second unit that receives a standard set of print/copy conditions of an image forming device designated by the user, a third unit that receives other selectable sets of print/copy conditions of the image forming device, and a display unit that displays a listing of each of the standard set of print/copy conditions of the image forming device, the set of print/copy conditions selected by the user, and the other selectable sets of print/copy conditions of the image forming device for comparison.
    Type: Application
    Filed: June 27, 2011
    Publication date: December 29, 2011
    Applicant: RICOH COMPANY, LTD.
    Inventor: Keizo YASUDA
  • Image forming apparatus, fixing unit, and image forming method with improved heating mechanism
    Publication number: 20070014600
    Abstract: An image forming apparatus includes an image forming mechanism to form a toner image on a recording medium according to image data and a fixing mechanism to fix the toner image on the recording medium. The fixing mechanism includes a fixing member and an external heater. The fixing member applies heat to the recording medium having the toner image. The external heater heats the fixing member and is formed in a shape corresponding to a surface of the fixing member. The external heater is disposed as if to engage and yet be spaced apart from the fixing member by a distance which is variable according to movement of the external heater.
    Type: Application
    Filed: July 13, 2006
    Publication date: January 18, 2007
    Inventors: Kenji Ishii, Keizo Yasuda, Akiyasu Amita, Kenichi Hasegawa, Yasuhiro Kohira, Yasutada Tsukioki, Maseya Shitami, Setoshi Ueno
  • Image forming apparatus capable of erasing an image recorded in a sheet
    Patent number: 5400123
    Abstract: An image forming apparatus has an erasing device therein which automatically erases an image formed on a sheet by a recording agent implemented by a decolorizable coloring agent, e.g., toner. The erasing device emits light having a wavelength range of 820 nm or so while generating heat and may be constituted by a halogen lamp. As a result, the sheet is regenerated and can be repetitively used.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: March 21, 1995
    Assignee: Ricoh Company, Ltd.
    Inventors: Masumi Sato, Keizo Yasuda, Motokazu Yasui, Kenichi Hasegawa, Eiji Sawamura, Masahiko Sato, Yasuhisa Kato, Masano Ehara