Inorganic Luminescent Compositions With Organic Nonluminescent Material Patents (Class 252/301.36)
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Publication number: 20110024686Abstract: A composition for preparing a phosphorescent masterbatch is provided. The composition includes about 1-45 wt % of a phosphorescent material, about 0.1-10 wt % of a crosslinking, about 38-98.8 wt % of a thermoplastic polymer, about 0-0.2 wt % of a crosslinking initiator, and about 0.1-5 wt % of a dispersing agent.Type: ApplicationFiled: July 30, 2009Publication date: February 3, 2011Applicant: TAIWAN TEXTILE RESEARCH INSTITUTEInventors: Hsi-Wen Chang, Sheng-Jen Lin
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Publication number: 20110017952Abstract: Polymer-inorganic particle blends are incorporated into structures generally involving interfaces with additional materials that can be used advantageously for forming desirable devices. In some embodiments, the structures are optical structures, and the interfaces are optical interfaces. The different materials at the interface can have differences in index-of-refraction to yield desired optical properties at the interface. In some embodiments, structures are formed with periodic variations in index-of-refraction. In particular, photonic crystals can be formed. Suitable methods can be used to form the desired structures.Type: ApplicationFiled: October 5, 2010Publication date: January 27, 2011Inventors: Nobuyuki Kambe, Christian C. Honeker, Yigal Dov Blum, David Brent MacQueen
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Publication number: 20110020946Abstract: The present invention relates to a method of producing silver films having large nanoparticles caused by cracking during anaerobic annealing to provide surfaces that exhibit increased metal enhanced fluorescence. Preferably the annealing process is conducted on a silver film having a thickness from about 14 to 17 nm for about an hour at a temperature of approximately 190° C. to about 210° C. resulting in the conversion of the just-continuous films into large particulate films, not readily assessable by other chemical deposition techniques.Type: ApplicationFiled: January 30, 2009Publication date: January 27, 2011Inventor: Chris D. Geddes
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Publication number: 20110006285Abstract: The invention relates to a core-alloyed shell semiconductor nanocrystal comprising: (i) a core of a semiconductor material having a selected band gap energy; (ii) a core-overcoating shell consisting of one or more layers comprised of an alloy of the said semiconductor of (i) and a second semiconductor; (iii) and an outer organic ligand layer, provided that the core semiconductor material is not HgTe. In certain embodiments, the core semiconductor material is PbSe and the alloy shell semiconductor material has the PbSexS1-x structure; or the core semiconductor material is CdTe and the alloy shell semiconductor material has either the CdTexSe1-x or CdTexS1-x structure.Type: ApplicationFiled: May 14, 2010Publication date: January 13, 2011Applicant: Technion Research & Development Foundation Ltd.Inventors: Efrat LIFSHITZ, Ariel Kigel, Maya Brumer-Gilary, Aldona Sashchiuk, Lilac Amirav, Viktoria Kloper, Dima Cheskis, Ruth Osovsky
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Publication number: 20110006321Abstract: A composition for a light emitting body-polymer composite, the composition including a light emitting body; and a cross-linkable composition including a monomer represented by Chemical Formula 1. A light emitting body-polymer composite prepared by cross-linking the composition and a light emitting device including the light emitting body-polymer composite are also provided.Type: ApplicationFiled: February 12, 2010Publication date: January 13, 2011Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Won-Suk CHANG, Eun-Joo JANG, Shin-Ae JUN, Hyo-Sook JANG, Seok-Hwan HONG
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Publication number: 20110001092Abstract: An economic, direct synthetic method for producing water soluble QDs that are ready for bioconjugation is provided. The method can produce aqueous QDs with emission wavelengths varying from 400 nm to 700 nm. Highly luminescent metal sulfide (MS) QDs are produced via an aqueous synthesis route. MS QDs are capped with thiol-containing charged molecules in a single step. The resultant MS QDs exhibit the distinctive excitonic photoluminescence desired of QDs and can be fabricated to avoid undesirable broadband emissions at higher wavelengths. This provides a significant improvement over the present complex and expensive commercial processes for the production of QDs. The aqueous QDs are stable in biological fluids over a long period of time. In addition, nontoxic ZnS QDs have been produced with good photoluminescence properties by refluxing the ZnS QD suspensions over a period of time.Type: ApplicationFiled: September 21, 2010Publication date: January 6, 2011Applicant: DREXEL UNIVERSITYInventors: WEI-HENG SHIH, WAN Y. SHIH, HUI LI, MELISSA COLLEEN SCHILLO
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Patent number: 7857993Abstract: Applicant's present invention is a composite scintillator having enhanced transparency for detecting ionizing radiation comprising a material having optical transparency wherein said material comprises nano-sized objects having a size in at least one dimension that is less than the wavelength of light emitted by the composite scintillator wherein the composite scintillator is designed to have selected properties suitable for a particular application.Type: GrantFiled: September 14, 2004Date of Patent: December 28, 2010Assignees: UT-Battelle, LLC, BWXT Y-12, LLCInventors: Sheng Dai, Andrew Curtis Stephan, Suree S. Brown, Steven A. Wallace, Adam J. Rondinone
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Patent number: 7858799Abstract: An ionic organic compound having a repeating unit of formula (I) can be synthesized easily from a readily available organic compound through a small number of reaction steps, can be produced without any purification technique such as chromatography, and can be used in a quite small amount for gelation of water or an ionic liquid without any other auxiliary solvent: [-(A-B-C)n-]•m(X)??(I) wherein A represents a group having a quaternary ammonium cation which is formed from a heterocyclic compound having at least one nitrogen atom; B represents a functional group, which may have a substituent, selected from amide, urea, urethane and peptide groups; C represents a divalent hydrocarbon group, which may have a substituent, capable of linking between A and B; X represents an anion; n represents the number of repeating units; m represents the total number of anions; and n and m are the same integer.Type: GrantFiled: January 30, 2006Date of Patent: December 28, 2010Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Masaru Yoshida, Nagatoshi Koumura, Nobuyuki Tamaoki, Hajime Kawanami, Hajime Matsumoto, Said Kazaoui, Nobutsugu Minami
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Publication number: 20100320897Abstract: The present invention provides an organic/inorganic composite containing a rare earth metal or/and Period IV transition metal in which the aforementioned rare earth metal or/and Period IV transition metal is doped at a high concentration, and control of quenching and optical transparency are assured thereby; and an optical amplifier, a light control optical element, and luminescent device utilizing the same. The organic/inorganic composite containing a rare earth metal or/and Period IV transition metal is one in which at least one species of rare earth metal or/and Period IV transition metal is dispersed in an organic polymer, with the aforementioned composite containing an optically transparent organic polymer and an inorganic dispersion phase comprising: (1) a rare earth metal and (2) another element coordinated thereto via an oxygen atom(s).Type: ApplicationFiled: March 23, 2010Publication date: December 23, 2010Applicant: KRI, INC.Inventors: Hiroshi Mataki, Toshimi Fukui
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Publication number: 20100308275Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.Type: ApplicationFiled: December 19, 2008Publication date: December 9, 2010Inventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar
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Patent number: 7842830Abstract: Briefly described, embodiments of this disclosure include transition-metal charge-transport materials, methods of forming transition-metal charge-transport materials, and methods of using the transition-metal charge-transport materials.Type: GrantFiled: June 14, 2005Date of Patent: November 30, 2010Assignee: Georgia Tech Research CorporationInventors: Seth Marder, Jian-Yang Cho, Bernard Kippelen, Benoit Domercq, Steve Barlow
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Publication number: 20100298123Abstract: There is disclosed a process of making metal chalcogenide particles. The process comprises the steps of reacting a metal salt solution with a precipitant solution under conditions to form metal chalcogenide particles and by-product thereof, coating the metal chalcogenide particles with a surfactant; and separating the surfactant coated chalcogenide particles from the by-product to obtain metal chalcogenide particles substantially free of by-product.Type: ApplicationFiled: November 20, 2008Publication date: November 25, 2010Applicant: NANOMATERIALS TECHNOLOGY PTE LTDInventors: Zhigang Shen, Meng Tack Ng, Sung Lai Jimmy Yun, Jianfeng Chen, Yit Wooi Goh, Wei Kian Soh
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Publication number: 20100295287Abstract: The present invention is in the field of security documents, more particularly in the field of security elements aimed to protect security documents against copying (illegal reproduction) and counterfeiting. It discloses a security element having a coating layer(s) which changes its visual appearance after irradiation with light, especially with UV light and reverts back to the original state within a few seconds. Security documents comprising said security element, as well as a method for producing said security element, are also disclosed.Type: ApplicationFiled: October 22, 2008Publication date: November 25, 2010Applicant: BASF SEInventors: Hans Reichert, Veronique Hall-Goulle, Sibylle Soder
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Publication number: 20100291409Abstract: A method for making products that glow in the dark, i.e., photoluminescent products, by coating such products with a photoluminescent pigment or ink, or with a plastic material containing the desired photoluminescent compound. Articles which are principally plastic, or having a plastic or partially plastic outer shell or covering can incorporate the photoluminescent pigment or ink directly within the plastic material itself. Photoluminescent products are also disclosed, which may also incorporate reflective material.Type: ApplicationFiled: May 14, 2010Publication date: November 18, 2010Inventors: David B. Dicks, Pieter W. Grobbelaar
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Publication number: 20100283007Abstract: Flexible luminescent paints are prepared from physical blends of hybrid epoxy acrylic resins, cementicious acrylic resins and optionally pure acrylic coating resins together with monopropylene glycol, suspension additives, rheological additives and photoluminescent pigments. The luminescent paints exhibit bright, even and long-lasting photoluminescent afterglow, excellent flexibility in both thin and thick layers, and are suitable for spraying, brushing, rolling and screen printing. Optional fluorescent pigments may be utilized to give daylight coloration and up-convert the photoluminescent emissions to the fluorescent emissions color.Type: ApplicationFiled: May 8, 2009Publication date: November 11, 2010Inventor: John Russell Robinson
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Publication number: 20100283008Abstract: Compositions comprising at least one type of carbon nanotube, at least one surfactant, and at least one polymer are disclosed. The compositions provide stable fluorescence over a wide range of pH in various embodiments. In some embodiments, the compositions are biocompatible. Methods for preparing the compositions from at least one pre-formed polymer are disclosed. Methods for preparing the compositions from at least one monomer are disclosed. Heating methods utilizing the compositions are disclosed.Type: ApplicationFiled: September 24, 2008Publication date: November 11, 2010Applicant: WILLIAM MARSH RICE UNIVERSITYInventors: Juan G. Duque, Matteo Pasquali, Howard K. Schmidt, Laurent Cogent, A. Nicholas G. Parra-Vasquez
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Publication number: 20100270504Abstract: Nanoclusters comprising a metal core and outer ligand layer and methods of making and use them are disclosed. The nanoclusters have properties which are tunable by virtue of adjusting various aspects of the reaction.Type: ApplicationFiled: April 28, 2010Publication date: October 28, 2010Applicant: CRYSTALPLEX CORPORATIONInventor: Lianhua Qu
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Publication number: 20100264371Abstract: One aspect of the present invention relates to a composition comprising a host material including quantum dots and one or more of the following additives: a UV absorbing dye; a humectant; an occlusant; a terpene; a surfactant; an antioxidant; a pigment; a fragrance; a fatty acid ester emulsifier; a fatty acid ester; a high molecular weight alcohol; an oxygen scavenger; a fatty alcohol; a silicone fluid; and a hydrocarbon oil. Other aspects of the present invention relate to a particle comprising a composition of the invention, a powder comprising a particle of the invention, a formulation including a composition of the invention, a coating including a composition of the invention, a taggant including a composition of the invention, a device including a composition of the invention, a method for making a composition of the invention, and other products and applications utilizing a composition of the invention. In a preferred embodiment, a quantum dot comprises a light-emissive semiconductor nanocrystal.Type: ApplicationFiled: March 19, 2010Publication date: October 21, 2010Inventor: Robert J. Nick
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Publication number: 20100259156Abstract: The invention relates to surface-modified phosphor particles based on luminescent particles of (Ca,Sr,Ba)2SiO4 and/or other silicates, in each case individually or mixtures thereof with one or more activator ions, such as Eu, Mn, Ce and/or Mg and/or Zn, where at least one metal, transition-metal or semimetal oxide coating and an organic coating are applied to the luminescent particles, and to a preparation process.Type: ApplicationFiled: October 23, 2008Publication date: October 14, 2010Applicant: MERCK PATENT GESELLSCHAFTInventors: Holger Winkler, Reinhold Rueger, Ralf Petry, Tim Vosgroene, Walter Tews
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Water based colorants comprising semiconductor nanocrystals and methods of making and using the same
Patent number: 7811470Abstract: A water based colorant that includes a polymer emulsion and semiconductor crystals capable of emitting light. The colorants include paints, inks and/or dyes can be applied to various substrates.Type: GrantFiled: October 4, 2007Date of Patent: October 12, 2010Assignee: Evident TechnologiesInventors: James Hayes, Luis Sanchez -
Patent number: 7811374Abstract: A composition for coating a surface includes a carrier and an indicator distributed throughout the carrier. The indicator is configured to modify an appearance of the coating. The indicator facilitates determining a thickness of the coating in response to the appearance of the coating.Type: GrantFiled: August 30, 2005Date of Patent: October 12, 2010Assignee: The Boeing CompanyInventors: Joseph H. Osborne, Ronald R. Stephenson, Kenneth A. Krienke, Larry K. Olli
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Publication number: 20100252807Abstract: A metal ion sensor is provided. The metal ion sensor includes a nanoparticle core doped with a first luminescent material and a shell enclosing the nanoparticle core. The shell includes a second luminescent material and binding sites of outer metal ions. The first luminescent material and the second luminescent material emit light with mutually different colors when excited by an excitation source. The luminescence intensity of the light emitted from the second luminescent material varies in accordance with the binding amount of the outer metal ions, such that the emission color of the combined luminescence of the first luminescent material and the second luminescent material is changed.Type: ApplicationFiled: December 1, 2009Publication date: October 7, 2010Inventors: Kookheon Char, Hosub Kim
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Publication number: 20100244009Abstract: The present invention relates to phosphorescent organic electroluminescent devices which contain as a matrix material of emitting layer, metal complexes of the formula (I)Type: ApplicationFiled: October 14, 2008Publication date: September 30, 2010Applicant: Merck Patent GmbHInventors: Amir Hossain Parham, Jonas Kroeber, Anja Gerhard, Rocco Fortte
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Publication number: 20100237768Abstract: A light emitting element, includes: a luminescent material which is obtained from a plant-derived material as a raw material, and which contains therein a silicon oxide containing therein silicon having a content rate of 40 wt. % or more, and oxygen having a content rate of 40 wt. % or more as a principal component; a fluorescent substance adsorbed on a surface of the luminescent material; and an energy source for exciting the luminescent material and the fluorescent substance.Type: ApplicationFiled: March 3, 2010Publication date: September 23, 2010Applicant: Sony CorporationInventors: Seiichiro Tabata, Shinichiro Yamada, Tsutomu Noguchi
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Patent number: 7799244Abstract: An inexpensive fluorescent object is provided which may be used, for example, as a test object for color adjustment of a fluorescent endoscope system. The fluorescent object generates fluorescence while minimizing the generation of ‘noise’ at undesired wavelengths, and is made using a plastic that substantially does not deteriorate upon exposure to U.V. and visible radiation. A method of producing the fluorescent object is disclosed, namely, a plastic powder (such as PTFE) and an inorganic fluorescent powder (such as Mn-doped ZnS) are blended so as to form a mixture of these components, and the mixture is then molded by applying pressure to the mixture. An important feature of the invention is that heat is not added during any phase in the production of the fluorescent object, thereby preventing the inorganic fluorescent powder from being denatured when producing the fluorescent object.Type: GrantFiled: September 5, 2007Date of Patent: September 21, 2010Assignees: Olympus Corporation, Olympus Medical Systems Corp.Inventors: Takeshi Suga, Tomonori Sato, Nobuyuki Suda, Yukichi Hanayama
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Patent number: 7790056Abstract: The invention relates to a composition for a coding forming at least part of a coding system having a luminescent basic substance and at least one luminescent additive, the composition of the coding being formed by the presence or absence of a luminescent additive and/or the type of additives and/or the number of additives.Type: GrantFiled: October 5, 2004Date of Patent: September 7, 2010Assignee: Giesecke & Devrient GmbHInventors: Thomas Giering, Gerhard Schwenk
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Publication number: 20100213490Abstract: According to an aspect of the present invention, there is provided a sealing composition for a light emitting device, the sealing composition including: a silicone/epoxy compound resin including a silicone resin having at least one silicon atom-bonded hydroxyl group and an epoxy resin having at least one oxirane group while the hydroxyl group of the silicone resin and the oxirane group of the epoxy resin are chemically bound to each other.Type: ApplicationFiled: February 24, 2010Publication date: August 26, 2010Inventors: Il Woo PARK, Yong Chun Kim, Na Na Park, Bang Won Oh
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Publication number: 20100213415Abstract: The present invention relates to metal oxide fine particles treated with a surface-treating agent containing a silicon compound having an alkenyl group having 2 to 20 carbon atoms, a silicone resin composition obtained by reacting the metal oxide fine particles with an organohydrogensiloxane, a photo semiconductor element-encapsulating material containing the silicone resin composition, and a photosemiconductor device including a photosemiconductor element encapsulated with the silicone resin composition or the photosemiconductor element-encapsulating material.Type: ApplicationFiled: February 25, 2010Publication date: August 26, 2010Applicant: NITTO DENKO CORPORATIONInventors: Haruka FUJII, Takashi OZAKI, Hiroyuki KATAYAMA
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Publication number: 20100207067Abstract: Process for labelling a material based on at least one organic thermoplastic or thermosetting polymer matrix comprising a step that consists in incorporating therein, by dispersion during its manufacture or its formation, at least one compound based on at least one photoluminescent rare earth in a concentration that renders this compound detectable under UV irradiation, said compound being a coordination polymer that is in the form of a crystallite obtained by reaction of at least one photoluminescent rare-earth ion with at least one unsaturated organic ligand.Type: ApplicationFiled: June 4, 2008Publication date: August 19, 2010Inventors: Olivier Guillou, Carole Daiguebonne, Nicolas Kerbellec
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Publication number: 20100209724Abstract: A plastic substrate is disclosed that is provided with a conductive layer wherein an electroluminescent layer is applied to a conductive layer. In order to produce the electroluminescent layer, a printing paste is used that is preferably applied by means of screen printing. The printing paste is based on a transparent, acrylate-based UV printing lacquer that is known per se. The UV printing lacquer is mixed with electroluminophores at a ratio of at least two parts by weight UV printing lacquer and three parts by weight electroluminophores. A phthalic acid emollient is added. The dielectric layer results from the application, preferably the imprinting, of a dielectric paste. Preferably, a composition is selected from the dielectric paste that is similar to that of the printing paste. Here, however, instead of the luminescent pigments, a filler is used, preferably a mixture of barium titanate and titanium dioxide.Type: ApplicationFiled: May 7, 2008Publication date: August 19, 2010Applicant: SCHREINER GROUP GMBH & CO. KGInventors: Manfred Hartmann, Andreas Nübler
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Publication number: 20100200808Abstract: Described herein are batches of nanoscale phosphor particles having an average particle size of less than about 200 nm and an average internal quantum efficiency of at least 40%. The batches of nanoscale phosphor particles can be substantially free of impurities. Also described herein are methods of manufacturing the nanoscale phosphor particles by passing phosphor particles through a reactive field to thereby dissociate them into elements and then synthesizing nanoscale phosphor particles by nucleating the elements and quenching the resulting particles.Type: ApplicationFiled: March 11, 2008Publication date: August 12, 2010Applicant: NITTO DENKO CORPORATIONInventors: Jami Hafiz, Toshitaka Nakamura, Steven L. Girshick, Joachim V.R. Heberlein, Amane Mochizuki, Rajesh Mukherjee
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Patent number: 7772288Abstract: The invention provides a composition that is a dispersion made from a Group III nitride, a solvent system, and a dispersant. The dispersion can be used to prepare Group III nitride thin films on a wide range of substrates, for example, glass, silicon, silicon dioxide, silicon nitride, silicon carbide, aluminum nitride, sapphire, and organic polymers. The particle size of the Group III nitride used for producing the thin films can be controlled by adjusting centrifugation of the dispersion and selecting a desired layer of supernatant. The dispersant can be removed from the thin films by calcination. The Group III nitride can contain a dopant. Doped Group III nitride thin films can emit visible light upon irradiation. Green, red, and yellow light emissions result from irradiating erbium-, europium-, and cerium-doped gallium nitride, respectively.Type: GrantFiled: June 1, 2007Date of Patent: August 10, 2010Assignee: Cornell Research Foundation, Inc.Inventors: Huaqiang Wu, Michael G. Spencer, Emmanuel Giannelis, Athanasios Bourlinos
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Patent number: 7772315Abstract: A golf ball made from a composition that includes at least one triboluminescent material. In one embodiment, the golf ball includes a core; an outer cover layer; one or more intermediate layers; and a coating layer disposed on the outer cover layer, wherein at least one of the core, the outer cover layer, the intermediate layer, or the coating layer comprises at least one triboluminescent material. In another embodiment, the golf ball includes a core; an outer cover layer; and one or more intermediate layers; wherein at least one of the core, the outer cover layer, or the intermediate layer comprises at least one triboluminescent material.Type: GrantFiled: July 18, 2007Date of Patent: August 10, 2010Assignee: Taylor Made Golf Company, Inc.Inventors: Jae Lee, Hyun J. Kim, Hong G. Jeon, Dean A. Snell, Mike Ferris
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Publication number: 20100176343Abstract: The presently claimed and disclosed inventions relate, in general, to methods of radiation dosimetry and imaging using scintillation luminescence. More particularly, materials having a scintillation luminescence response to radiation that varies with total radiation dose received can be used for dosimetry monitoring, including, but not limited to nanoparticles for in vivo, real-time dosimetry. Energy-transfer nanocomposite materials as well as methods of making and using such materials in various applications including, but not limited to, in vivo radiation dosimetry and imaging, are disclosed. More particularly, the presently claimed and disclosed inventions relate to nanoparticle scintillation luminescence particles encapsulated in hosts of the general formula BaFX and BaFX:Eu2+ where X?Cl, Br and I.Type: ApplicationFiled: May 5, 2009Publication date: July 15, 2010Inventors: Wei Chen, Shaopeng Wang, Sarah L. Westcott, Jun Zhang
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Publication number: 20100176376Abstract: A copolymer comprising a repeating unit of the following formula (1) and a repeating unit of the following formula (2): (wherein, a ring A and ring B represent each independently an aromatic ring optionally having a substituent. X is —O—, —S—, —S(?O)—, —S(?O)2—, —Si(R1)2—Si(R1)2—, —Si(R1)2—, —, —B(R1)—, —P(R1)—, —P(?O)(R1)—, —O—C(R1)2— or —N?C(R1)—, and R1 represents a substituent. When there are two or more R1s in the same formula, they may be the same or different.) (wherein, Y is —O—, —S— or —C(?O)—. Ar1 represents an aryl group optionally having a substituent or a monovalent heterocyclic group optionally having a substituent, and there is no substituent connected to atoms of the ring of Ar1, the atoms being adjacent an atom of Ar1 connected to a nitrogen atom in the formula. R3 represents a substituent, and n represents an integer of from 0 to 3. When there are two or more R2s in the formula, they may be the same or different.).Type: ApplicationFiled: October 3, 2006Publication date: July 15, 2010Applicant: SUMITOMO CHEMICAL COMPANY , LIMITEDInventors: Tomoyuki Suzuki, Takanobu Noguchi
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Publication number: 20100176344Abstract: 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 inorganic luminous substance pigment powder with luminous substance pigments is dispersed in the transparent epoxy casting resin. The luminous substance is a powder of Ce-doped phosphors and the luminous substance pigments have particle sizes?20 ?m and a mean grain diameter d50?5 ?m.Type: ApplicationFiled: March 25, 2010Publication date: July 15, 2010Inventors: Klaus Höhn, Alexandra Debray, Peter Schlotter, Ralf Schmidt, Jürgen Schneider
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Publication number: 20100178473Abstract: A fluorescent paste that can form a fluorescent film and can be manufactured without a binder resin and has a high recording density and peel resistance Fluorescent fine particles each coated with a film formed of a film compound having a reactive group and a curing agent having a plurality of crosslinking reaction groups each reacting with the reactive group to form bonds are blended with a solvent to manufacture fluorescent paste. The fluorescent paste is applied to a substrate coated with a film formed of a second film compound having a second reactive group and is cured by crosslinking reactions between the reactive group and the second reactive group, and the crosslinking reaction groups to form a fluorescent film.Type: ApplicationFiled: June 5, 2008Publication date: July 15, 2010Inventor: Kazufumi Ogawa
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Publication number: 20100173376Abstract: A method of functionalizing carbon nanotubes with metallic moieties is disclosed. Carbon nanotubes are first associated with one or more binding moieties to provide carbon nanotubes encapsulated by the binding moieties. The encapsulated carbon nanotubes are then contacted with a metal salt or a metal complex that binds to the binding moieties. Reduction of the metal salt or metal complex provides carbon nanotubes functionalized with metal nanoparticles.Type: ApplicationFiled: July 7, 2009Publication date: July 8, 2010Inventors: Gordana Ostojic, Mark C. Hersam
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Publication number: 20100171412Abstract: A composition containing an inorganic particle of the present invention contains an organic compound (A1) having a terpene skeleton and a viscosity of 10,000 to 1,000,000 mPa·s at 25° C. and an inorganic particle, in which the content of the organic compound (A1) is 50% by mass to 95% by mass relative to the whole amount of organic compounds contained in the composition containing an inorganic particle.Type: ApplicationFiled: May 28, 2008Publication date: July 8, 2010Inventors: Hiroyuki Tanaka, Yuuji Kobayashi, Naoki Yamada, Hiromi Kobayashi, Shoko Sugawara
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Publication number: 20100172121Abstract: The invention relates to a self-supporting luminescent film (10), a phosphor-enhanced illumination system and to a method of manufacturing the self-supporting luminescent film. The self-supporting luminescent film comprises luminescent particles (20) and an organic polymer (30). The luminescent particles comprise luminescent material which is arranged for absorbing at least part of the impinging light impinging on the luminescent particles and for converting the absorbed light into converted light. The converted light has a predefined spectrum different from the impinging light. The organic polymer interconnects the luminescent particles to form the self-supporting luminescent film, wherein the self-supporting luminescent film comprises less than 10 weight percentage of organic polymer. The effect of the measures according to the invention is that the close packing of the luminescent particles generates a substantially uniform self-supporting luminescent film.Type: ApplicationFiled: May 27, 2008Publication date: July 8, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Rifat Ata Mustafa Hikmet, Henricus Albertus Maria Van Hal
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Publication number: 20100155668Abstract: A semiconductor nanocrystal compound and probe are described. The compound is capable of linking to one or more affinity molecules. The compound comprises (1) one or more semiconductor nanocrystals capable of, in response to exposure to a first energy, providing a second energy, and (2) one or more linking agents, having a first portion linked to the one or more semiconductor nanocrystals and a second portion capable of linking to one or more affinity molecules. One or more semiconductor nanocrystal compounds are linked to one or more affinity molecules to form a semiconductor nanocrystal probe capable of bonding with one or more detectable substances in a material being analyzed, and capable of, in response to exposure to a first energy, providing a second energy. Also described are processes for respectively: making the semiconductor nanocrystal compound; making the semiconductor nanocrystal probe; and treating materials with the probe.Type: ApplicationFiled: February 26, 2010Publication date: June 24, 2010Inventors: Shimon Weiss, Marcel Bruchez, Paul Alivisatos
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Publication number: 20100140551Abstract: Matrixes doped with semiconductor nanocrystals are provided. In certain embodiments, the semiconductor nanocrystals have a size and composition such that they absorb or emit light at particular wavelengths. The nanocrystals can comprise ligands that allow for mixing with various matrix materials, including polymers, such that a minimal portion of light is scattered by the matrixes. The matrixes of the present invention can also be utilized in refractive index matching applications. In other embodiments, semiconductor nanocrystals are embedded within matrixes to form a nanocrystal density gradient, thereby creating an effective refractive index gradient. The matrixes of the present invention can also be used as filters and antireflective coatings on optical devices and as down-converting layers. Processes for producing matrixes comprising semiconductor nanocrystals are also provided.Type: ApplicationFiled: November 9, 2009Publication date: June 10, 2010Applicant: NANOSYS, Inc.Inventors: J. Wallace Parce, Paul Bernatis, Robert Dubrow, William P. Freeman, Joel Gamoras, Shihai Kan, Andreas Meisel, Baixin Qian, Jeffery A. Whiteford, Jonathan Ziebarth
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Publication number: 20100133471Abstract: The present invention provides an example for the construction of stable quantum dots, such as CdS quantum dots, on the surface of carbon nanotubes (CNTs) templated and stabilized, such as by attached 1?3 C-branched amide-based dendrons. The construction and method of preparation is applicable to both single- and multi-walled carbon nanotubes, other types of appropriately modified polymeric and oligomeric materials, along with the use of many other types of dendrons, and other materials capable of forming quantum dots.Type: ApplicationFiled: May 23, 2007Publication date: June 3, 2010Applicant: THE UNIVERSITY OF AKRONInventors: George R. Newkome, Charles N. Moorefield
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Publication number: 20100136302Abstract: An article of manufacture that comprises a structure that is a security system device (or portion thereof) or a fire system device (or portion), where a persistent phosphor and/or a persistent phosphor blend is either integrated in a coating on the structure; applied on the structure; or integrated in the structure, wherein the persistent phosphor comprises certain phosphors or phosphor blends. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.Type: ApplicationFiled: December 17, 2009Publication date: June 3, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Holly Ann Comanzo, Alok Mani Srivastava, Steven Jude Duclos, Lucas Lemar Clarke, Munro Howard Sykes
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Publication number: 20100123155Abstract: Embodiments of the present invention relate to a formulation for use in the fabrication of a light-emitting device, the formulation including a population of semiconductor nanoparticles incorporated into a plurality of discrete microbeads comprising an optically transparent medium, the nanoparticle-containing medium being embedded in a host light-emitting diode encapsulation medium. A method of preparing such a formulation is described. There is further provided a light-emitting device including a primary light source in optical communication with such a formulation and a method of fabricating the same.Type: ApplicationFiled: November 19, 2009Publication date: May 20, 2010Applicant: NANOCO TECHNOLOGIES LIMITEDInventors: Nigel Pickett, James Harris
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Patent number: 7718088Abstract: A wavelength converting material including a wavelength converting activator and a scatter is provided. The wavelength converting activator is suitable for being activated by a light with a wavelength ?1, so as to emit a light with a wavelength ?2. The scatter is disposed on the wavelength converting activator. The scatter is suitable for scattering a first light and a second light irradiated to a surface thereof. As a result of that the scatters on the wavelength converting activators increases the gap of two wavelength converting activators adjacent to each other, the wavelength converting activators could be sufficiently activated for emitting a light with wavelength ?2 while the wavelength converting materials are irradiated by the light with ?1. Therefore, the brightness of a light emitting diode with the wavelength converting material is enhanced.Type: GrantFiled: May 29, 2006Date of Patent: May 18, 2010Assignee: LightHouse Technology Co., LtdInventors: Wen-Jeng Hwang, Chih-Chin Chang, Hsiang-Cheng Hsieh, Hsin-Hua Ho
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Publication number: 20100119561Abstract: Compositions containing a delivery system including polymeric microparticles capable of undergoing a visual change, such as a color change, after application to a substrate are disclosed. The delivery system informs a consumer that the composition has been properly applied and/or has performed its intended function.Type: ApplicationFiled: October 4, 2007Publication date: May 13, 2010Applicant: AMCOL International CorporationInventors: Ralph Spindler, Nataliya V. Larionova
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Publication number: 20100117029Abstract: In a method of forming a light emissive nanostructure, a quantum dot is provided and a crosslinked-glutathione layer around the quantum dot is formed. The light emissive nanostructure thus comprises a quantum dot and a crosslinked-glutathione layer around the quantum dot. In another method, a metal-based nanostructure is provided, and a crosslinked-glutathione layer coated on a surface of the metal-based nanostructure is formed. The metal-based nanostructure is thus coated with a crosslinked-glutathione layer. To promote crosslinking and stability, the glutathione layer may be crosslinked in the presence of an activating agent and sufficient amount of free glutathione.Type: ApplicationFiled: April 30, 2008Publication date: May 13, 2010Inventor: Jackie Y. Ying
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Publication number: 20100109037Abstract: In a fluorescer solution, a plurality of types of fluorescent particles are contained in a resin liquid. Average particle sizes of these fluorescent particles decrease as densities of the types increase. In other words, average settling rates vs of the types of the fluorescent particles ascertained by v s = D p 2 × ( ? p - ? f ) × g 18 × ? are equal to each other, where Dp is an average particle size of each of the types of fluorescent particles, pp is a density of each of the types of fluorescent particles, pf is a density of the resin liquid, ? is a viscosity of the resin liquid, g is the acceleration due to gravity, and vs is an average settling rate of each of the types of fluorescent particles.Type: ApplicationFiled: November 3, 2009Publication date: May 6, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Naoaki SAKURAI, Junsei Yamabe, Hiroshi Koizumi
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Patent number: RE42076Abstract: A two and three dimensional display medium having a novel transparent polymer composite containing particles of crystals doped with Yb3+ and other rare earth ions. The polymer composite creates homogeneously dispersed compositions without cracking or delamination of the film and can be used for various optical applications.Type: GrantFiled: January 18, 2007Date of Patent: January 25, 2011Assignee: University of Central Florida Research Foundation, Inc.Inventors: Michael Bass, Kevin D. Belfield