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:
Sep. 23, 2008
Filed:
Jul. 05, 2005
Applicants:
Yongchi Tian, Princeton Jct., NJ (US);
Perry Niel Yocom, Washington Crossing, PA (US);
Gerard Frederickson, Yardley, PA (US);
Liyou Yang, Plainsboro, NJ (US);
Inventors:
Yongchi Tian, Princeton Jct., NJ (US);
Perry Niel Yocom, Washington Crossing, PA (US);
Gerard Frederickson, Yardley, PA (US);
Liyou Yang, Plainsboro, NJ (US);
Assignee:
Sarnoff Corporation, Princeton, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/56 (2006.01); C09K 11/55 (2006.01); C09K 11/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided among other things is a phosphor of the formulaSrCaGaS:Eu:xGaS  (I)wherein x is 0 to about 0.2 (or about 0.0001 to about 0.2), wherein x3 is 0.0001 to 1, and wherein a minor part of the europium component is substituted with praseodymium in an efficiency enhancing amount.