Patents by Inventor Yoshua Sheinman

Yoshua Sheinman 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).

  • Continuous ink jet printing apparatus and method including self-testing for printing errors
    Patent number: 6003980
    Abstract: A method and apparatus for sensing improper operation of an ink jet printer having a plurality of nozzles each emitting, towards a substrate, a series of ink drops broken-off from a continuous ink jet filament, and selectively charging and deflecting said drops according to a pattern of marks to be printed by a respective nozzle on the substrate by: controlling the plurality of nozzles to print test marks on a test strip including a plurality of marks for each nozzle produced by a series of drops from the nozzle while at different charge levels: sensing the test marks for each nozzle; analyzing the test marks for all the nozzles for proper operation of the ink jet printer; and producing an output signal indicating errors in the operation of the printer.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: December 21, 1999
    Assignee: Jemtex Ink Jet Printing Ltd.
    Inventors: Yoshua Sheinman, Meyer Weksler