Patents by Inventor Kohji Hikawa

Kohji Hikawa 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
    Patent number: 7349131
    Abstract: An image forming apparatus receives image data from a plurality of external input means and forms an image on a sheet of paper based on the image data. In the image forming apparatus, an operation part for a user to perform an input/output operation is provided in the front side of the housing formed with a stage. Additionally, an extended housing is provided on the housing so that the top of the extended housing is higher than the location of the operation part. Further, a light emitting part for indicating the operational status of the image forming apparatus is provided on the extended housing.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: March 25, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Kanae Amemiya, Kohji Hikawa, Shohji Asanuma
  • Super imposed image display color selection system and method
    Patent number: 7324118
    Abstract: An optimal pen color is automatically selected for a given background color based upon a predetermined relative distance in the Munsell color-order system. The predetermined distance is defined in terms of saturation, hue and or lightness. In general, sufficient visual distinction is observed when the color representations of the pen and the background are separated by the predetermined relative distance in the Munsell color-order system.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: January 29, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Susumu Fujioka, Kunikazu Tsuda, Kohji Hikawa
  • Super imposed image display color selection system and method
    Patent number: 7071950
    Abstract: An optimal pen color is automatically selected for a given background color based upon a predetermined relative distance in the Munsell color-order system. The predetermined distance is defined in terms of saturation, hue and or lightness. In general, sufficient visual distinction is observed when the color representations of the pen and the background are separated by the predetermined relative distance in the Munsell color-order system.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: July 4, 2006
    Assignee: Ricoh Co., Ltd.
    Inventors: Susumu Fujioka, Kunikazu Tsuda, Kohji Hikawa
  • Super imposed image display color selection system and method
    Publication number: 20050156943
    Abstract: An optimal pen color is automatically selected for a given background color based upon a predetermined relative distance in the Munsell color-order system. The predetermined distance is defined in terms of saturation, hue and or lightness. In general, sufficient visual distinction is observed when the color representations of the pen and the background are separated by the predetermined relative distance in the Munsell color-order system.
    Type: Application
    Filed: March 14, 2005
    Publication date: July 21, 2005
    Inventors: Susumu Fujioka, Kunikazu Tsuda, Kohji Hikawa
  • Image forming apparatus
    Publication number: 20030030847
    Abstract: An image forming apparatus receives image data from a plurality of external input means and forms an image on a sheet of paper based on the image data. In the image forming apparatus, an operation part for a user to perform an input/output operation is provided in the front side of the housing formed with a stage. Additionally, an extended housing is provided on the housing so that the top of the extended housing is higher than the location of the operation part. Further, a light emitting part for indicating the operational status of the image forming apparatus is provided on the extended housing.
    Type: Application
    Filed: August 2, 2002
    Publication date: February 13, 2003
    Inventors: Kanae Amemiya, Kohji Hikawa, Shohji Asanuma
  • Super imposed image display color selection system and method
    Publication number: 20020051155
    Abstract: An optimal pen color is automatically selected for a given background color based upon a predetermined relative distance in the Munsell color-order system. The predetermined distance is defined in terms of saturation, hue and or lightness. In general, sufficient visual distinction is observed when the color representations of the pen and the background are separated by the predetermined relative distance in the Munsell color-order system.
    Type: Application
    Filed: August 31, 2001
    Publication date: May 2, 2002
    Inventors: Susumu Fujioka, Kunikazu Tsuda, Kohji Hikawa
  • Facsimile transmitter-receiver
    Patent number: D465224
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: November 5, 2002
    Assignee: Ricoh Company, Ltd.
    Inventors: Kanae Amemiya, Kohji Hikawa, Masaaki Kabumoto