Patents by Inventor Thomas Nataniel Tombs

Thomas Nataniel Tombs 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).

  • Apparatus and method of transfering toner using non-marking toner and marking toner
    Patent number: 5794111
    Abstract: A method and apparatus which forms a desired toner image on a receiver are disclosed. The method comprises transferring marking toner particles from an intermediate transfer member to a receiver in the presence of an electric field which urges the marking toner particles toward said receiver. When transferring the marking toner particles to the intermediate transfer member, the surface of the intermediate transfer member contacts non-marking toner particles in some areas which receive marking toner. The marking toner comprises toner particles having transfer assisting particles adhering to the surfaces of the toner particles, said transfer assisting particles having a number average diameter of less than 0.4 .mu.m.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: August 11, 1998
    Assignee: Eastman Kodak Company
    Inventors: Thomas Nataniel Tombs, John Walter May, Earl Gregory Gomes