Phosphor, producing method thereof, and light-emitting device employing the phosphor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 14, 2020
Grant Date -
Nov 23, 2017
app pub date -
Jul 26, 2017
filing date -
Feb 12, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Embodiments of the present invention provide a phosphor improved in the emission intensity maintenance ratio without impairing the emission intensity and further a light-emitting device employing that phosphor. The phosphor is activated by manganese and has a basic structure comprising at least one element selected from the group consisting of potassium, sodium and calcium; at least one element selected from the group consisting of silicon and titanium; and fluorine. In an IR absorption spectrum of the phosphor, the intensity ratio of the peak in 3570 to 3610 cm−1 to that in 1200 to 1240 cm−1 is 0.1 or less.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully