Patents by Inventor Ranjan Krishnachandra Badheka

Ranjan Krishnachandra Badheka 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).

  • Magnetic immersion lense with detection arrangement
    Patent number: 6664544
    Abstract: A magnetic immersion lens has inner and outer pole-pieces arranged symmetrically about a longitudinal axis X-X of the lens, the inner pole piece having a through-bore and the lens producing a magnetic imaging field for directing along the through-bore secondary electrons emitted from a specimen positioned in front of the inner pole-piece. The lens has an axially-symmetric detection arrangement located within the through-bore.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: December 16, 2003
    Assignee: Shimadzu Research Laboratory (Europe) Ltd.
    Inventors: Takao Marui, Ranjan Krishnachandra Badheka, Frank Henry Read