Patent · US Active

Color stable red-emitting phosphors

US9698314B2 · kind B2 · utility

20Cited by

20References

9Claims

0Family size

Assignee

General Electric Company · US

Inventors

James Edward Murphy · Niskayuna, US
Anant Achyut Setlur · Niskayuna, US
Florencio Garcia · Schenectady, US
Robert Joseph Lyons · Niskayuna, US
Ashfaqul Islam Chowdhury · Broadview Heights, US
Nagaveni Karkada · Bengaluru, IN
Prasanth Kumar Nammalwar · Savanuru, IN

Key dates

Filing date	Mar 13, 2014
Grant date	Jul 4, 2017
Priority date	—
Expiry date	Mar 13, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A process for synthesizing a color stable Mn4+ doped phosphor includes contacting a precursor of formula I, in gaseous form at an elevated temperature with a fluorine-containing oxidizing agent to form the color stable Mn4+ doped phosphorAx[MFy]:Mn4+ Iwherein

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.