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| Number | Title | Issue Date |
| 7803287 | Phosphor material of phosphate compound The present invention is a yellow-green phosphor material with a high luminescence intensity. The present invention is suitable for excitation by ultraviolet or blue light. The phosphor material is made of a phosphate compound with a chemical formula of LiZn1-x... | 09/28/2010 |
| 7625504 | Light phosphor with zeolitic structure The present invention is related to a phosphor that can be excited by UV light between 375 to 400 nm to emit white light, which is intrinsically produced by emitting blue light with yellow light simultaneously. This compound is synthesized from organic amine, metal ... | 12/01/2009 |
| 7572392 | Scintillating compositions for detecting neutrons and methods of making the same Solid-state scintillating compositions for detecting neutrons comprise a Li4Zn(PO4)2 host lattice. Methods of making scintillating compositions comprise: dissolving a lithium-6 precursor and a zinc precursor in a solvent to form a so... | 08/11/2009 |
| 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 |
| 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 |
| 6692660 | High luminescence phosphor particles and related particle compositions Methods for producing metal/metalloid oxide particles comprise rare earth metals herein include reacting a reactant stream in a gas flow. The reactant stream includes a rare earth metal precursor and an oxygen source. A collection of particles comprising ... | 02/17/2004 |
| 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 |
| 6656859 | Tellurite glasses and optical components A family of tellurite glasses and optical components for telecommunication systems, the glasses consisting essentially of, as calculated in cation percent, 65-97% TeO2, and at least one additional oxide of an element having a valence greater th... | 12/02/2003 |
| 6627113 | Phosphor consisting of hollow particles, phosphor slurry, phosphor beads for analysis using tracer technique and their production processes A phosphor consisting of hollow particles, each hollow particle having an outer shell and a space in the inside of said outer shell.... | 09/30/2003 |
| 6572784 | Luminescent pigments and foils with color-shifting properties Interference pigment flakes and foils are provided which have luminescent and color-shifting properties. The pigment flakes can have a symmetrical coating structure on opposing sides of a core layer, can have an asymmetrical coating structure with all of ... | 06/03/2003 |
| 6565770 | Color-shifting pigments and foils with luminescent coatings Interference pigment flakes and foils are provided which have luminescent and color-shifting properties. A luminescent material coating structure is provided which partially covers or encapsulates a color-shifting pigment flake, or covers the outer surfac... | 05/20/2003 |
| 6562260 | Recovery of electroluminescsent phosphor from encapsulated material A method of recovering a base phosphor from encapsulated phosphors, which comprises the steps of selecting a recovery vessel including a magnetic stir bar; adding to the recovery vessel, deionized water, a first batch of concentrated hydrochloric acid and... | 05/13/2003 |
| 6525460 | Very high color rendition fluorescent lamps A high color-rendering fluorescent lamp comprising a phosphor layer wherein the phosphors are selected such that the general color rendering index, Ra is greater than 96 or 97 or 98 at color temperatures of 2700 K to 6600 K, and all the special... | 02/25/2003 |
| 6517741 | Color display screen with color pigment A color display screen comprises a red phosphor and a color pigment having a general formula selected from the group consisting of: A1-x A'x BO2-x N1+x, where 0 | 02/11/2003 |
| 6458512 | Oxynitride encapsulated electroluminescent phosphor particles Encapsulated electroluminescent phosphor particles and a method of making same. Each electroluminescent phosphor particle is encapsulated by a substantially transparent metal oxynitride coating. The coating provides the phosphor particle with reduced sens... | 10/01/2002 |
| 6416688 | High luminance blue color fluorescent substance for low-voltage and manufacturing method of the same Disclosed is a low-voltage blue color fluorescent substance which is doped with 0.5 to 3 weight % of P, and a manufacturing method of the same. The above blue color fluorescent substance is manufactured by mixing phosphoric compound as flux with a mixture... | 07/09/2002 |
| 6402985 | Method for preparing efficient low voltage phosphors and products produced thereby Doped phosphors (e.g., metal orthosilicates) are made by adding solid particulate precursor to a solution of an alkoxide precursor and a dopant precursor before hydrolysis is allowed to occur. The mixture is then allowed to hydrolyze, resulting in a sol-g... | 06/11/2002 |
| 6395196 | Process for producing electroluminescent phosphor with extended half-life An electroluminescent phosphor with an extended half-life is created by means of the present invention by taking an amount of a phosphor and treating it with antimony comprising the steps of placing an amount of antimony in an inert reaction vessel, placi... | 05/28/2002 |
| 6352950 | Tellurite glasses and optical components A family of alkali-tungsten-tellurite glasses that consist essentially of, as calculated in mole percent, 10-90% TeO2, at least 5% W03 and at least 0.5% R2 O where R is Li, Na, K, Cs, Tl and mixtures, that may contain a la... | 03/05/2002 |
| 6303051 | Phosphate treated silicate phosphor A novel phosphate treated silicate phosphor has been invented that exhibits improved lumen maintenance with respect to the untreated phosphor when used in a fluorescent lamp. In one aspect, a protective phosphate-containing surface layer is formed by trea... | 10/16/2001 |
| 6290874 | Display screen comprising a metal oxide-containing phosphor composition A display screen comprising a phosphor composition which includes a phosphor and a phosphor coating with a group of metal-oxygen compounds, the group of metal-oxygen compounds containing an yttrium-oxygen compound, is characterized by a surprising improve... | 09/18/2001 |
| 6264855 | Process for preparing water resistant luminous pigments A process for preparing a water resistant luminous pigment with durability, characterized in that a luminous pigment, in which an oxide matrix comprising at least one element selected from the group consisting of Mg, Ca, Sr, Ba and Zn and at least one ele... | 07/24/2001 |
| 6197710 | Luminous glass ceramics A luminous glass ceramic comprising, in percent by weight, the following components: SiO2 50-65 (%) P2 O5 0-10 Al2 O3 18-30... | 03/06/2001 |
| 6120902 | Luminescent article with protective coating and manufacture A method of manufacturing a luminescent article comprising a self-supporting or supported phosphor containing layer having thereon a protective coating, said method comprising the step of applying on top of said phosphor containing layer a radiation-curab... | 09/19/2000 |
| 6093346 | Long afterglow silicate luminescent material and its manufacturing method The long afterglow silicate luminescent materials which main chemical composition formula is: aMO-bM'O-cSiO2 -dR:Eux Lny, wherein M represents one or more elements selected from a group consisting of Sr, Ca, Ba and Zn; M' ... | 07/25/2000 |
| 6085971 | Luminescent meta-borate substances The present invention relates to variously activated luminescent metaborates having luminescence properties improved in comparison with conventional luminescent substances. Moreover, the activated luminescent metaborates have outstanding stability under t... | 07/11/2000 |
| 6066861 | Wavelength-converting casting composition and its use The wavelength-converting casting composition is based on a transparent epoxy casting resin with a luminous substance admixed. The composition is used in an electroluminescent component having a body that emits ultraviolet, blue or green light. An inorgan... | 05/23/2000 |
| 6039894 | Production of substantially monodisperse phosphor particles The invention relates to a method for producing activated, substantially monodisperse, phosphorescent particles and particles formed thereby. The method suspends substantially monodisperse, phosphor-precursor particles in a fluidizing gas and then introdu... | 03/21/2000 |
| 6004480 | Phosphor manufacturing process employing auto feedback to control product characteristics A continuous automated process is provided for manufacturing a phosphor product having controlled particle size characteristics and enhanced luminescent performance characteristics for use in a luminescent display. A precursor host lattice solution, a pre... | 12/21/1999 |
| 5998047 | Aluminate phosphor with a polyphosphate coating A plasma display device with a phosphor screen, comprising a phosphor composition of an UV-phosphor furnished with a coating which includes one or more catena-polyphosphates of metals of the group formed by the alkaline earth metals, zinc, cadmium and man... | 12/07/1999 |
| 5985175 | Boron oxide coated phosphor and method of making same A method for forming a continuous, conformal non-particulate coating of boron oxide on individual phosphor particles is provided. The method involves reacting a boron-containing precursor with an oxidizing gas in a fluidized bed of phosphor particles. The... | 11/16/1999 |
| 5985173 | Phosphors having a semiconductor host surrounded by a shell Phosphors having a doped core are surrounded by a shell material. Additionally, these nanocrystalline phosphors, or larger phosphors formed by conventional or other processes may be surrounded by a shell that prevents or significantly reduces non-radiativ... | 11/16/1999 |
| 5977556 | Radiation imaging device with photostimulable phosphor A radiation imaging device including a photostimulable phosphor which is a glass including active cations that release light having a wavelength in the blue colour or ultra-violet region when those parts of the glass which have been stimulated by radiatio... | 11/02/1999 |
| 5906771 | Manufacturing process for high-purity phosphors having utility in field emission displays A process is provided for manufacturing high-purity phosphors having utility in field emission displays. The high-purity phosphor is a host lattice infiltrated by a dopant that activates luminescent properties therein. The lattice and dopant are initially... | 05/25/1999 |
| 5739632 | Luminescent phosphor screen containing catena-polyphosphate The invention relates to a display screen comprising a phosphor composition of a sulphide and/or selenide-containing phosphor which is provided with a coating which comprises one or more catena-polyphosphates of one or more alkaline earth metals, zinc, ca... | 04/14/1998 |
| 5635109 | Tb- or Eu-containing fluorophosphate fluorescent glass According to the present invention, there is provided a fluorescent glass of the present invention is capable of converting invisible ultraviolet rays into visually observable visible rays with a high efficiency and available for controlling the optical a... | 06/03/1997 |
| 5601751 | Manufacturing process for high-purity phosphors having utility in field emission displays A process is provided for manufacturing high-purity phosphors having utility in field emission displays. The high-purity phosphor is a host lattice infiltrated by a dopant that activates luminescent properties therein. The lattice and dopant are initially... | 02/11/1997 |
| 5567352 | Phosphor and method of making same Inorganic intercalation phosphors were made by doping an inorganic intercalation compound having an atomic structure interspersed with vacant spaces with selected activator ions capable of luminescent emission when excited by ultraviolet light and/or cath... | 10/22/1996 |
| 5478499 | Low-velocity electron excited phosphor of blue luminous color A low-velocity electron excited phosphor capable of exhibiting increased luminance and a stabilized blue tone. The phosphor is formed of ZnO.Ga2 O3 doped with Li and P, wherein the Li and P are doped in amounts of 500 to 2300 ppm and... | 12/26/1995 |
