Patents by Inventor Steven Ruiter

Steven Ruiter 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).

  • Color display device with deflection means and a co-operating pair of means for influencing the distance between electron beams
    Patent number: 6452346
    Abstract: A color cathode ray tube has quadrupole elements which increase and decrease the distance between the electron beams as a function of the deflection. Two co-operating elements have their windings connected in series with each other to minimize dissipation in the driving circuits. One driving circuit provides a common current which flows through both quadrupole elements, while another driving circuit provides a difference current to a node between the quadrupole elements.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: September 17, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Albertus Aemilius Seyno Sluyterman, Steven Ruiter