Patents by Inventor Robert W. Ayers

Robert W. Ayers 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).

  • Electromagnetic gray scale printer
    Patent number: 5038158
    Abstract: A gray scale image poster printer reproduces a digitally stored bit map image on a printer using an electrostatic and magnetic toner to generate gray scale images by expanding each line of the original stored image into a plurality of subpixels along the horizontal scanning lines and by synchronizing the printing of the subpixel lines with a changing magnetic field that changes the amount of toner deposited in each subpixel.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: August 6, 1991
    Assignee: Applied Resources, Inc.
    Inventors: Robert W. Ayers, Richard M. Kerbel