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:
Aug. 20, 2013
Filed:
Jul. 19, 2010
Yuanqiang LI, Plainsboro, NJ (US);
Yongchi Tian, Princeton Junction, NJ (US);
Michael Dennis Romanelli, North Plainfield, NJ (US);
Yuanqiang Li, Plainsboro, NJ (US);
Yongchi Tian, Princeton Junction, NJ (US);
Michael Dennis Romanelli, North Plainfield, NJ (US);
Lightscape Materials, Inc., Princeton, NJ (US);
Abstract
Disclosed herein is a novel group of carbidonitride phosphors and light emitting devices which utilize these phosphors. In certain embodiments, the present invention is directed to a novel family of carbidonitride-based phosphors expressed as follows:CaAlSiNC:A;  (1)CaNaM(III)SiNC:A;  (2)M(II)M(I)M(III)SiNC:A;  (3)M(II)M(I)M(III)SiNCOH:A; and  (4)M(II)M(I)M(III)SiNCOH:A,  (4a)wherein 0<x<1, 0<y<1, 0≦z<1, 0≦v<1, 0<w<1, x+z<1, x>xy+z, and 0<x−xy−z<1, M(II) is at least one divalent cation, M(I) is at least one monovalent cation, M(III) is at least one trivalent cation, H is at least one monovalent anion, and A is a luminescence activator doped in the crystal structure.