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. 14, 2014
Filed:
Nov. 02, 2009
Holger Winkler, Darmstadt, DE;
Ralf Petry, Griesheim, DE;
Thomas Vosgroene, Ober-Ramstadt, DE;
Thomas Juestel, Witten, DE;
Arturas Kastelnikovas, Steinfurt, DE;
Dominik Uhlich, Steinfurt, DE;
Holger Winkler, Darmstadt, DE;
Ralf Petry, Griesheim, DE;
Thomas Vosgroene, Ober-Ramstadt, DE;
Thomas Juestel, Witten, DE;
Arturas Kastelnikovas, Steinfurt, DE;
Dominik Uhlich, Steinfurt, DE;
MERCK PATENT GmbH, Darmstadt, DE;
Abstract
The invention relates to compounds of the formula (I): (Ca,Sr,Ba)MeSiN:Eu, where Me═Mn, Mg, Be, Ni, Coand/or Ru; x=0.005 to 0.20; and y<1, and/or of the formula (II): (Ca,Sr,Ba)SiMaN:Eu, where Ma═Hf, Thand/or Zr; x=0.005 to 0.20; and z<1, and to a process for the preparation of these compounds, and to the use as phosphors and conversion phosphors for conversion of the blue or near-UV emission from an LED.