Patents by Inventor Maris Andris Sturans

Maris Andris Sturans 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).

  • Particle beam system with dynamic focusing
    Patent number: 6130432
    Abstract: A magnetic lens having a lens bore for the passage of a particle beam includes a dynamic focus coil that is positioned outside the lens bore and within the pole piece that shapes the lens field, so that the magnetic flux lines from the dynamic focus coil all end on the pole pieces of the lens and the shape of the lens field between the pole pieces has its magnitude changed by the current passing through the dynamic focus coil, but the field shape is not changed, thus changing the focal plane of the beam without moving the beam transversely with respect to the system axis.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: October 10, 2000
    Assignee: International Business Machines Corporation
    Inventors: Hans C. Pfeiffer, Joseph J. Senesi, Maris Andris Sturans