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);
Chen-wen Fan, Sayre, PA (US);
Thomas M. Snyder, Laceyville, PA (US);
Inventors:
Gregory A. Marking, Sayre, PA (US);
Chen-Wen Fan, Sayre, PA (US);
Thomas M. Snyder, Laceyville, PA (US);
Assignee:
OSRAM Sylvania Inc., Danvers, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/55 (2006.01); C09K 11/77 (2006.01); C09K 11/63 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of producing a UV-emitting magnesium pentaborate phosphor is described. The method comprises combining a hydrated magnesium hexaborate with oxides of Y, Gd, Ce and Pr to form a mixture and firing the mixture in a slightly reducing atmosphere to form the phosphor. The hydrated magnesium hexaborate, which is preferably prepared as a precipitate, preferably has a formula MgBO.XHO where X is from 4 to 6.