Patents by Inventor Yoko Nakamura

Yoko Nakamura 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).

  • Color adjustment apparatus for color copying machine
    Patent number: 5012299
    Abstract: A color adjustment apparatus for a color picture image reproducing machine, the apparatus includes a color chart for visually representing all real colors in terms of color elements of saturation and hue, and a touch-key for inputting color adjustment data to the color copying machine, the color adjustment data relates to one of the colors corresponding to a pressed point on the color chart.
    Type: Grant
    Filed: October 12, 1988
    Date of Patent: April 30, 1991
    Assignee: Ricoh Company, Ltd.
    Inventors: Tadahide Sawamura, Yoko Nakamura, Fumiyo Kojima
  • Copying machine having a bar code reader
    Patent number: 4876571
    Abstract: A copying machine including a sheet in which bar codes corresponding to various copying modes are printed, a bar code reader for reading the bar codes from the sheet, a decoding section for decoding signals transmitted from the bar code reader and a control section for setting a copying mode based on data derived from the decoding section.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: October 24, 1989
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoko Nakamura, Fumiyo Kojima, Hirobumi Yoshino
  • Toner tank
    Patent number: D308073
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: May 22, 1990
    Assignee: Ricoh Company, Ltd.
    Inventor: Yoko Nakamura
  • Electrostatic copying machine
    Patent number: D318485
    Type: Grant
    Filed: January 12, 1989
    Date of Patent: July 23, 1991
    Assignee: Ricoh Company, Ltd.
    Inventors: Koji Hikawa, Yoko Nakamura, Yuji Suzuki