The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 2007
Filed:
Jul. 17, 2002
Applicants:
James Denning Smith, Albany, OR (US);
Paul Benning, Corvallis, OR (US);
Inventors:
James Denning Smith, Albany, OR (US);
Paul Benning, Corvallis, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
An emitter has a dielectric layer formed on a conductor, with a thin metal layer over the dielectric. A plurality of conducting centers is in the dielectric layer to allow electrons to pass through the dielectric from the conductor to the thin metal layer via quantum tunneling.