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:
Mar. 16, 2010
Filed:
Feb. 20, 2004
Bert Braune, Wenzenbach, DE;
Torsten Fries, Stadtbergen, DE;
Rainer Schirmer, Türkheim, DE;
Martin Zachau, Geltendorf, DE;
Franz Zwaschka, Ismaning, DE;
Bert Braune, Wenzenbach, DE;
Torsten Fries, Stadtbergen, DE;
Rainer Schirmer, Türkheim, DE;
Martin Zachau, Geltendorf, DE;
Franz Zwaschka, Ismaning, DE;
OSRAM Gesellschaft mit beschränkter Haftung, München, DE;
Osram Opto Semiconductors GmbH, Regensburg, DE;
Abstract
A coated phosphor, formed by a powder of individual grains of a phosphor as base material, the grains being coated with a coating material. The layer comprises a plurality of individual layers and is particulate in form, the individual primary particles of the layer being at least 5 nm in size. The mean layer thickness is at least 20 nm.