US5582768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphor and method of making same
Assignee: Global Tungsten and Powders LLC
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Filing: 1995-10-24
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Granted: 1996-12-10
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Expires: 2015-10-24
Abstract
Abstract Electroluminescent phosphors having substantially increased luminance and maintenance over that of prior art electroluminescent phosphors may be made by (1) doping an inorganic intercalation compound having an atomic structure interspersed with vacant spaces, with selected activator ions capable of luminescent emission, and (2) introducing organic monomers or other conductive material into the vacant spaces of the atomic structure of the doped inorganic intercalation compound. The organic monomers may be polymerized in situ to form conductive polymers therein.
Inventors
- 👤 Vaddi B. Reddy
- 👤 Ronald E. Karam
- 👤 Shellie K. Northrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:19
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/59; C09K11/592; C09K11/02; C09K11/025; C09K11/0805; C09K11/61; C09K11/611; C09K11/64; C09K11/646; C09K11/67; C09K11/671; H; H05; H05B; H05B33/00; H05B33/12; H05B33/14
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
18 words
A green-emitting titanium-activated fluorophlogopite phosphor having the general formula KMg 3 (Si 3 Al)O 10 F 2 :Ti.
Claim 2
Dependent Claim
18 words
A green-emitting titanium-activated fluorophlogopite phosphor having the general formula KMg 3 (Si 3 Al)O 10 F 2 :Ti.
Claim 3
Dependent Claim
30 words
A green-emitting titanium-activated fluorophlogopite phosphor according to claim 1 wherein said phosphor is activated by titanium in an amount of up to about 0.125 mole per mole of fluorophlogopite phosphor.
Claim 4
Dependent Claim
27 words
A green-emitting titanium-activated fluorophlogopite phosphor according to claim 1 wherein said phosphor is activated by titanium in an amount of 0.03 mole per mole of fluorophlogopite phosphor.
Claim 5
Dependent Claim
18 words
A red-emitting manganese-activated fluorophlogopite phosphor having the general formula KMg 3 (Si 3 Al)O 10 F 2 :Mn.
Claim 6
Dependent Claim
18 words
A red-emitting manganese-activated fluorophlogopite phosphor having the general formula KMg 3 (Si 3 Al)O 10 F 2 :Mn.
Claim 7
Dependent Claim
30 words
A red-emitting manganese-activated fluorophlogopite phosphor according to claim 4 wherein said phosphor is activated by manganese in an amount of up to about 0.10 mole per mole of fluorophlogopite phosphor.
Claim 8
Dependent Claim
27 words
A red-emitting manganese-activated fluorophlogopite phosphor according to claim 4 wherein said phosphor is activated by manganese in an amount of 0.04 mole per mole of fluorophlogopite phosphor.
Claim 9
Dependent Claim
18 words
A green-emitting terbium-activated fluorophlogopite phosphor having the general formula KMg 3 (Si 3 Al)O 10 F 2 :Tb.
Claim 10
Dependent Claim
18 words
A green-emitting terbium-activated fluorophlogopite phosphor having the general formula KMg 3 (Si 3 Al)O 10 F 2 :Tb.
Claim 11
Dependent Claim
30 words
A green-emitting terbium-activated fluorophlogopite phosphor according to claim 7 wherein said phosphor is activated by terbium in an amount of up to about 0.05 mole per mole of fluorophlogopite phosphor.
Claim 12
Dependent Claim
27 words
A green-emitting terbium-activated fluorophlogopite phosphor according to claim 7 wherein said phosphor is activated by terbium in an amount of 0.01 mole per mole of fluorophlogopite phosphor.
Claim 13
Dependent Claim
23 words
A blue-emitting titanium-activated crystalline alpha zirconium phosphate phosphor having the general formula Zr 1-x Ti x (HPO 4 ) 2 .H 2 O.
Claim 14
Dependent Claim
23 words
A blue-emitting titanium-activated crystalline alpha zirconium phosphate phosphor having the general formula Zr 1-x Ti x (HPO 4 ) 2 .H 2 O.
Claim 15
Dependent Claim
19 words
A blue-emitting titanium-activated crystalline alpha zirconium phosphate phosphor according to claim 10 wherein x is from 0.02 to 0.08.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-12-10 | 2000-06-10 | 2000-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-10 | 2004-06-10 | 2004-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-10 | 2008-06-10 | 2008-12-10 | $7700.00 | Window Closed / Lapsed |