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:
Apr. 26, 2016
Filed:
Aug. 25, 2014
General Electric Company, Schenectady, NY (US);
Alok Mani Srivastava, Niskayuna, NY (US);
Holly Ann Comanzo, Niskayuna, NY (US);
William Winder Beers, Chesterland, OH (US);
Samuel Joseph Camardello, Albany, NY (US);
Digamber Gurudas Porob, Karnataka, IN;
William Erwin Cohen, Solon, OH (US);
GENERAL ELECTRIC COMAPNY, Schenectady, NY (US);
Abstract
Processes for producing particles of rare earth-containing phosphor materials, in which the particles have a core-shell structure and the shell has a lower rare earth content than the core. Such a process may include contacting a core particle with a precursor comprising Na(La,Ce,Tb)POto form a mixture, and then heating the mixture to a temperature sufficient to decompose the Na(La,Ce,Tb)POto evolve and melt an NaPOflux and initiate deposition of a (La,Ce,Tb)POshell on each core particle in the presence of the molten NaPOflux.