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:
Oct. 19, 2010
Filed:
Aug. 08, 2008
Joerg Freudenberger, Kalchreuth, DE;
Sven Fritzler, Erlangen, DE;
Manfred Fuchs, Nuremberg, DE;
Detlef Mattern, Erlangen, DE;
Peter Roehrer, Uttenreuth, DE;
Peter Schardt, Hoechstadt A.D. Aisch, DE;
Joerg Freudenberger, Kalchreuth, DE;
Sven Fritzler, Erlangen, DE;
Manfred Fuchs, Nuremberg, DE;
Detlef Mattern, Erlangen, DE;
Peter Roehrer, Uttenreuth, DE;
Peter Schardt, Hoechstadt A.D. Aisch, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A cathode has an emission layer that thermionically emits electrons upon exposure with a laser beam. The material of the emission layer has a product of density (ρ), measured in heat capacity (C), measured in and heat conductivity (λ), measured in that is, at room temperature, maximally 500,000 Such a cathode has an improved thermionic emission of electrons.