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. 12, 2014
Filed:
Jan. 13, 2012
Alan Thomas, Yardley, PA (US);
Yuanqiang LI, Plainsboro, NJ (US);
Yongchi Tian, Princeton Junction, NJ (US);
Alan Thomas, Yardley, PA (US);
Yuanqiang Li, Plainsboro, NJ (US);
Yongchi Tian, Princeton Junction, NJ (US);
Lightscape Materials, Inc., Princeton, NJ (US);
Abstract
Disclosed herein is a novel group of carbonitride and carbidonitride phosphors and light emitting devices which utilize these phosphors. In certain embodiments, the inventive phosphors are expressed as follows:CaSiCAlNOEu  (1)M(II)SiCM(III)NOH:A  (2)MSiCM(III)NOH:A  (3)CaSiAlNCO:Eu  (4)M(II)SiM(III)NCOH:A  (5)MSiM(III)NCOH:A  (6)wherein v is the valence number of M, 0≦m<5, 0≦n≦3, 0≦x<4, and 0≦y<1, M is at least one cation, M(II) is at least one divalent cation, M(III) is at least one trivalent cation, H is at least one monovalent anion, and A is a luminescence activator.