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:
Dec. 07, 2010
Filed:
Feb. 13, 2008
Applicants:
Gregory A. Marking, Sayre, PA (US);
Thomas M. Snyder, Laceyville, PA (US);
Inventors:
Gregory A. Marking, Sayre, PA (US);
Thomas M. Snyder, Laceyville, PA (US);
Assignee:
Osram Sylvania Inc., Danvers, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/77 (2006.01); C09K 11/63 (2006.01); C09K 11/57 (2006.01); C09K 11/55 (2006.01); C09K 11/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is described a method of producing a red-emitting manganese and cerium co-activated gadolinium magnesium zinc pentaborate phosphor that comprises combining a hydrated hexaborate of zinc, magnesium, and manganese with oxides of Gd and Ce to form a mixture, and firing the mixture in a slightly reducing atmosphere to form the phosphor. Preferably, the hydrated hexaborate has an approximate composition represented by (Zn,Mg,Mn)BO.XHO, where X is 5.3 to 6.2.