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| Number | Title | Issue Date |
| 8187495 | Light emitting device A light emitting device is provided. The light emitting device includes a light emitting element that emits ultraviolet light or short-wavelength visible light; and at least one phosphor that is excited by the ultraviolet light or short-wavelength visible light to e... | 05/29/2012 |
| 8178000 | Deep red phosphor and method of manufacturing the same Disclosed is a deep red phosphor (600 nm to 670 nm) of Mn activity having a chemical formula of (k-x)MgOxAF2GeO2:yMn4+ where k is a real number between 2.8 and 5.0, x is a real number between 0.1 and 0.7, y is a real number between 0... | 05/15/2012 |
| 8168086 | Inorganic luminescent phosphor materials for lighting A light emitting device comprising a light producing element configured to generate ultraviolet light having a wavelength of from about 250 nm to about 400 nm and a self-activating phosphor comprising an ordered oxyfluoride compound is provided. The nitrogen-free or... | 05/01/2012 |
| 8168085 | White light phosphors for fluorescent lighting Materials suitable for use in highly energy-efficient production of white light through photo-luminescence, such as in light emitting devices, are generally provided. A composition comprising a compound having the formula: Sr3-vAvMO4-x | 05/01/2012 |
| 8142684 | Method of manufacturing blue silicate phosphor, and blue silicate phosphor and light-emitting device The present invention provides a method of manufacturing a blue silicate phosphor having high luminance and a chromaticity y comparable to or lower than that of BAM:Eu. The present invention is a method of manufacturing a blue silicate phosphor represented by the ge... | 03/27/2012 |
| 8137586 | Phosphor blend for a compact fluorescent lamp and lamp containing same A phosphor blend for a compact fluorescent lamp is described wherein the phosphor blend comprises a green-emitting Tb3+ phosphor, a Y2O3:Eu3+ phosphor, a Sr6BP5O20:Eu2+ phosphor,... | 03/20/2012 |
| 8066908 | Production of light from sol-gel derived thin films made with lanthanide doped nanoparticles, and preparation thereof A method of preparing a lanthanide-doped nanoparticle sol-gel matrix film having a high signal to noise ratio is provided. The sol-gels are also provided. A method of preparing light emitting sol-gel films made with lanthanide doped nanoparticles, for the production... | 11/29/2011 |
| 8057706 | Moisture-resistant phosphor and associated method A phosphor material contains encapsulated particles of manganese (Mn4+) doped fluoride phosphor. A method of encapsulating such particles is also provided. Each particle is encapsulated with a layer of a manganese-free fluoride phosphor. The use of such a... | 11/15/2011 |
| 7955524 | Phosphor, its preparation method and light emitting devices using the same A phosphor can be excited by UV, purple or blue light LED, its preparation method, and light emitting devices incorporating the same. The phosphor contains rare earth, silicon, alkaline-earth metal, halogen, and oxygen, as well as aluminum or gallium. Its General fo... | 06/07/2011 |
| 7938984 | Coating compositions, process and luminescent coated articles The invention is directed to a composition having a carrier matrix, and a particulate luminescent composition dispersed therein, the particulate luminescent composition comprising a rare-earth-doped solid-state solution of alkaline earth fluorides represented by the... | 05/10/2011 |
| 7901593 | Rare-earth doped fluorides and process for preparing The present invention is directed to rare-earth doped solid state solutions of alkaline earth fluorides having novel luminescence properties, and to a process for preparing them. The invention is useful as identifying markers on articles. Other uses include phosphor... | 03/08/2011 |
| 7771619 | Optically transparent nanocomposite materials Optically transparent composite materials in which solid solution inorganic nanoparticles are dispersed in a host matrix inert thereto, wherein the nanoparticles are doped with one or more active ions at a level up to about 60 mole % and consist of particles having ... | 08/10/2010 |
| 7700003 | Composition, article, and method A method is provided that includes heating a powder to a temperature that is below the melting point of the scintillator composition but is sufficiently high to form a coherent mass. The powder includes a scintillator composition. The coherent mass is polycrystallin... | 04/20/2010 |
| 7651633 | Nanophosphors for large area radiation detectors Nanophosphor compositions were prepared. The compositions can be used for radiation detection. ... | 01/26/2010 |
| 7648649 | Red line emitting phosphors for use in led applications Light emitting devices including backlights having a light source and a phosphor material including a complex fluoride phosphor activated with Mn4+ which may include at least one of (A) A2[MF5]:Mn4+; where A is selected fr... | 01/19/2010 |
| 7641815 | Luminescent materials that emit light in the visible range or the near infrared range Luminescent materials and the use of such materials in anti-counterfeiting, inventory, photovoltaic, and other applications are described herein. In one embodiment, a luminescent material has the formula: [AaBbXxX′x′Xâ... | 01/05/2010 |
| 7625503 | Rare-earth doped fluorides and process for preparing The invention is directed a composition represented by the chemical formula EuxA1−xF2+x−2yOy wherein A is alkaline earth, 0.002≦x≦0.20, and 0≦y≦x; the composition exhibiting a luminescence spectrum characterize... | 12/01/2009 |
| 7625502 | Nano-scale metal halide scintillation materials and methods for making same Crystalline scintillator materials comprising nano-scale particles of metal halides are provided. The nano-scale particles are less than 100 nm in size. Methods are provided for preparing the particles. In these methods, ionic liquids are used in place of water to a... | 12/01/2009 |
| 7608201 | Scintillator material based on rare earth with a reduced nuclear background Inorganic scintillator material of formula AnLnpX(3p+n) in which has a very low nuclear background noise and is particularly suitable as a detector scintillator for coating weight or thickness measurements, in the fields of nuclear m... | 10/27/2009 |
| 7497973 | Red line emitting phosphor materials for use in LED applications Light emitting devices including a light source and a phosphor material including a complex fluoride phosphor activated with Mn4+ which may comprise at least one of (1) A2[MF6]:Mn4+, where A is selected from Li, Na, K, Rb,... | 03/03/2009 |
| 7422705 | Preparation method of rare earth activated alkaline earth metal fluorohalide stimulable phosphor precursor, rare earth activated alkaline earth metal fluorohalide stimulable phosphor and radiographic image conversion panel A preparation method of a precursor of a rare earth activated alkaline earth metal fluorohalide stimulable phosphor is disclosed, comprising (A) adding an aqueous solution of an inorganic fluoride into a mother liquor containing a barium halide to form a reaction mi... | 09/09/2008 |
| 7422703 | Nanometer-sized up-converting phosphor fluoride particles and process of preparation Nanometer-scaled up-converting fluoride phosphor particles and processes of making them are disclosed. In the process, an aqueous solution consisting of soluble salts of rare-earth metal ions at a molar ratio of (yttrium, lanthanum or gadolinium): ytterbium:(erbium,... | 09/09/2008 |
| 7297294 | Method of preparing storage phosphors from dedicated precursors A method for producing CsX:Eu stimulable phosphors and screens or panels provided with said phosphors as powder phosphors or vapor deposited needle-shaped phosphors suitable for use in image forming methods for recording and reproducing images of objects made by hig... | 11/20/2007 |
| 7276182 | Method of preparing storage phosphors from dedicated precursors In a method for producing CsX:Eu stimulable phosphors and screens or panels provided with said phosphors as powder phosphors or vapor deposited needle-shaped phosphors suitable for use in image forming methods for recording and reproducing images of objects made by ... | 10/02/2007 |
| 7270773 | Quantum-splitting fluoride-based phosphors, method of producing, and radiation sources incorporating same A quantum-splitting fluoride-based phosphor comprises gadolinium, at least a first alkali metal, and a rare-earth metal activator. The phosphor is made in a solid-state method without using HF gas. The phosphor can be used alone or in conjunction with other phosphor... | 09/18/2007 |
| 7208103 | Quantum-splitting fluoride-based phosphors, method of producing, and devices incorporating the same A quantum-splitting phosphor has a formula of ADF5:Pr3+, wherein A is at least one alkaline-earth metal and D is at least one Group-IIIB metal. The phosphor is made in a solid-state method without using hazardous HF gas. The phosphor can be use... | 04/24/2007 |
| 7153450 | Method and apparatus for preparing rare earth-activated barium fluorohalide based phosphor The present invention provides a method and apparatus for preparing a rare earth-activated barium fluorohalide based phosphor, in which atmospheric states during calcining and during cooling can be optimally adjusted and a cooling rate can be selected in a wide rang... | 12/26/2006 |
| 7037446 | Radiation image storage panel In a radiation image storage panel composed of a phosphor layer produced by vapor phase deposition, the phosphor layer is composed of an europium activated cesium halide stimulable phosphor and exhibits an ultraviolet light-excited emission spectrum satisfying the c... | 05/02/2006 |
| 7005084 | Thermoluminescent detector of LiF containing Mg, Cu, Na and Si as dopants and its preparation The disclosure concerns a pellet type LiF element for a thermoluminescent dosimetry (TLD) and its preparation. More particularly, the disclosure concerns the pellet type LiF element for a thermoluminescent dosimetry (TLD) which includes 0.35˜0.12% by mole of Mg sou... | 02/28/2006 |
| 6827878 | Spherical particles of rare earth activated barium fluoride halide phosphor precursor Spherical particles of a rare earth activated barium fluoride halide phosphor precursor having the formula(I): Ba1-aMIIaFX:yMI,zLn  (I) [in which MII is Ca or Sr; MI is Li, Na,... | 12/07/2004 |
| 6802991 | Method for preparing a CsX photostimulable phosphor and phosphor screens therefrom A CsX:Eu phosphor produced by heating a cesium halide with a Europium compound containing one or more halides selected from the group consisting of F, Cl, Br and I. Preferably the Europium compound is selected from the group consisting of EuX′2, and EuX... | 10/12/2004 |
| 6730243 | Cesium halide storage phosphor with narrow emission spectrum upon UV-excitation A CsBr:Eu phosphor showing a narrow emission spectrum upon UV-excitation and panels including such a phosphor are disclosed. Also methods for preparing such a phosphor have been described. ... | 05/04/2004 |
| 6706211 | Process for producing inorganic fine grains, inorganic fine grains, rare earth element-activated barium fluorohalide fluorescent substance, and radiation image conversion panel A process for producing inorganic fine grains in a definite form having a small grain size, the inorganic fine grains obtained by this process, a rare earth element-activated barium fluorohalide fluorescent substance made using the grains, and a radiation image conv... | 03/16/2004 |
| 6702959 | Long life, white light emitting electroluminescent phosphor A long-life, white-emitting phosphor blend is provided which comprises about 75 wt. % of a first electroluminescent phosphor having an x color coordinate of about 0.530 and a y color coordinate of about 0.455; about 10 wt. % of a second electroluminescent... | 03/09/2004 |
| 6699406 | Rare earth doped host materials A rare earth element doped composition having a dopant concentration of up to about 60 mole percent of one or more rare earth elements selected from Tb, Dy, Ho, Er, Tm, Yb and Lu, wherein the composition is optically transparent to wavelengths at which ex... | 03/02/2004 |
| 6695980 | Compressed fluid formulation containing electroluminescent material An imaging composition comprises a mixture of a fluid and a functional material; wherein the fluid is compressed and the functional material is an electroluminescent material which is dissolved, dispersed and/or solubilized in the compressed fluid; and wh... | 02/24/2004 |
| 6666993 | Single component calcium halophosphate phosphor A single-component calcium halophosphate (ARTIC BRITE) Phosphor and a low pressure discharge lamp utilizing such a phosphor is provided having a lamp envelope having an inner surface, means within the lamp envelope for generating ultraviolet radiation; an... | 12/23/2003 |
| 6666991 | Fluorescent or phosphorescent composition A fluorescent or luminous composition, comprising a multilayered film-coated powder having at least two coating films on a base particle, and a fluorescent or luminous substance; the composition, wherein at least one layer of the coating films contains th... | 12/23/2003 |
| 6660185 | Photoluminescent phosphor powders, methods for making phosphor powders and devices incorporating same Photoluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the economic... | 12/09/2003 |
| 6641858 | Phosphor layer for radiation image conversion panel A method of preparing a phosphor layer coating solution of a radiation image conversion panel is provided, in which, at least a phosphor, a binder, a cross-linking agent which cross-links the binder by being heated, and a solvent are constituent component... | 11/04/2003 |
