Patents by Inventor Tadashi Fujitsu

Tadashi Fujitsu 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).

  • Display managing arrangement with a display memory divided into a matrix of memory blocks, each serving as a unit for display management
    Patent number: 4920504
    Abstract: In a display managing arrangement comprising a display memory and a display memory controller for accessing the display memory to display a selected area of an image datum with the selected area scrolled on the image datum or otherwise subjected to management, the display memory is divided into memory blocks arranged as an N-row M-column matrix. Each memory block is for use as a unit of the management and is divisible into memory elements arranged as an n-row m-column matrix.
    Type: Grant
    Filed: September 17, 1986
    Date of Patent: April 24, 1990
    Assignee: NEC Corporation
    Inventors: Hachiro Sawada, Tadashi Fujitsu, Ken-ichi Takahashi, Hideaki Honma