Particles Applied Patents (Class 427/71)
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Patent number: 8994259Abstract: A wave-length conversion inorganic member can includes a base body and an inorganic particle layer on the base body. The inorganic particle layer can include particles of an inorganic wave-length conversion substance which is configured to absorb light of a first wave-length and to emit light of a second wave-length different from the first wave-length. The inorganic particle layer can include an agglomerate of a plurality of the particles. Each of the plurality of the particles are in contact with at least one of the other particles or the base body. A cover layer comprises an inorganic material, and the cover layer continuously covers a surface of the base body and surfaces of the particles. The inorganic particle layer has an interstice enclosed by the particles, or by the particles and one of the base body and the cover layer.Type: GrantFiled: March 28, 2013Date of Patent: March 31, 2015Assignee: Nichia CorporationInventors: Hiroto Tamaki, Takayoshi Wakaki, Tadao Hayashi, Yoshiki Sato, Daisuke Oyamatsu, Takafumi Sugiyama, Takao Kosugi
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Patent number: 8936828Abstract: Provided is a method of fabricating a substrate where patterns are formed, the method including: preparing a solution in which a plurality of oxide beads are dispersed; forming patterns on a substrate; installing a provisional structure in an upper portion of the substrate so that a micro-channel is formed on the substrate; injecting the solution in which the oxide beads are dispersed, into the micro-channel and fixing the oxide beads at the substrate; and thermally processing the substrate. A plurality of low-priced oxide beads can be patterned on a substrate to have a desired shape so that damages can be prevented from occurring in the substrate during dry etching, and an etching process is not performed so that a yield of a device is not reduced and mass production of the device increases.Type: GrantFiled: April 29, 2009Date of Patent: January 20, 2015Assignee: SNU R&DB FoundationInventors: Euijoon Yoon, Sung-Hoon Kwon
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Publication number: 20140209856Abstract: A fused film and methods for making the fused film to be employed in a light emitting device are provided. In one embodiment, the disclosure provides a method for forming a film from fused all-inorganic colloidal nanostructures, where the all-inorganic colloidal nanostructures may include inorganic semiconductor nanoparticles and functional inorganic ligands that may be fused to form an electrical network that is electroluminescent. In another embodiment, the disclosure provides a light-emitting device including the fused film that minimizes current leakage in the device and provides increased stability, longevity, and luminescent efficiency to the device.Type: ApplicationFiled: January 31, 2013Publication date: July 31, 2014Applicant: Sunpower Technologies LLCInventor: Sunpower Technologies LLC
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Publication number: 20140212575Abstract: The present invention includes a novel self-assembling nanocomposite structure comprising a shape-persistent three-dimensional cage molecule. In one aspect, binding of nanoparticles to metal coordinating groups in the cage molecule allows for the self-assembly of the nanoparticles into a nanocomposite material. The present invention further includes methods of preparing such self-assembling nanocomposite structures.Type: ApplicationFiled: September 24, 2013Publication date: July 31, 2014Inventors: Wei Zhang, Ryan McCaffrey, Wounjhang Park, Kazunori Emoto, Yinghua Jin
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Publication number: 20140212756Abstract: A lithium iron phosphate cathode material has high electron conductivity and high lithium ion conductivity, in other words, has excellent performance as an electrode material, which is provided by a carbon coating formed using a small amount of a carbon material. A method for producing the lithium iron phosphate cathode material is also provided. In particular, a lithium iron phosphate cathode material has primary particles of lithium iron phosphate coated with a conductive carbon cover layer. The conductive carbon cover layer is characterized by having thick layer portions with a thickness of 2 nm or greater and thin layer portions with a thickness of smaller than 2 nm.Type: ApplicationFiled: March 7, 2012Publication date: July 31, 2014Applicant: MITSUI ENGINEERING & SHIPBUILDING CO., LTD.Inventors: Yoshiki Sakaguchi, Yoshitaka Hamanaka
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Patent number: 8791630Abstract: A light emitting section emits fluorescence upon receiving exciting light emitted from a laser element. The light emitting section includes a plurality of fluorescent material particles made from a single type of fluorescent material or several types of fluorescent materials, the plurality of fluorescent material particles being accumulated on a metal substrate to form a layer of the plurality of fluorescent material particles. Each of the plurality of fluorescent material particles has a surface coated with a coating layer. The coating layer forms an uneven shape of a surface of the light emitting section.Type: GrantFiled: February 2, 2012Date of Patent: July 29, 2014Assignee: Sharp Kabushiki KaishaInventors: Yosuke Maemura, Yoshiyuki Takahira
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Patent number: 8790149Abstract: A method of fabricating flexible display device includes providing a flexible display panel having an uneven surface, and forming at least one filling layer on the uneven surface of the flexible display panel. The filling layer includes an organic filling layer polymerized by a precursor layer, or an inorganic filling layer including nanometer-scale carbon structure.Type: GrantFiled: August 15, 2012Date of Patent: July 29, 2014Assignee: AU Optronics Corp.Inventors: Chun-Jan Wang, Chia-Hao Chang, Chih-Jen Yang, Chuan-Hsiu Chang, Lan-Kai Yeh
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Patent number: 8703017Abstract: A method of modifying a phosphor and a phosphor composition and a manufacturing method of the same and a phosphor solution are provided. The phosphor composition includes a silicone resin and a modified phosphor. The modified phosphor includes a phosphor and a nano-silica particle. The nano-silica particle is adhered to the phosphor. A weight ratio of the modified phosphor to the silicone resin is substantially between 1:0.005 and 1:0.1.Type: GrantFiled: December 27, 2011Date of Patent: April 22, 2014Assignee: Industrial Technology Research InstituteInventors: Kuo-Tung Huang, Yu-Ying Hsu, Bee-Yu Wei
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Patent number: 8691334Abstract: Provided is a method of fabricating a substrate where patterns are formed, the method including: forming first bonding agent patterns having selective cohesion in a position in which oxide bead patterns are to be formed on a substrate; coating a second bonding agent having larger cohesion with the first bonding agent than cohesion with the substrate, on a plurality of oxide beads, applying the oxide beads, on which the second bonding agent is coated, to the substrate and forming the oxide beads, on which the second bonding agent is coated, on the first bonding agent patterns; and thermally processing the substrate.Type: GrantFiled: April 24, 2009Date of Patent: April 8, 2014Assignee: SK Hynix Inc.Inventors: Euijoon Yoon, Sung-Hoon Kwon
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Patent number: 8282986Abstract: A method of applying a phosphor coating is described. The method comprises forming a suspension of a phosphor and a polymer binder dissolved in a solvent, the phosphor comprising at least one of a nitridosilicate or an oxonitridosilicate phosphor, the polymer binder being capable of decomposing thermally; applying the suspension to a substrate to form a coating; drying the coating; and baking the coating in an inert atmosphere to thermally decompose the polymer binder to form the phosphor coating, preferably at a temperature less than about 400° C. in a nitrogen atmosphere.Type: GrantFiled: May 17, 2007Date of Patent: October 9, 2012Assignee: OSRAM SYLVANIA, Inc.Inventors: Richard S. Speer, Madis Raukas
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Publication number: 20120171360Abstract: A method for industrially producing a phosphor with high performance, in particular, high brightness. Also disclosed is a nitrogen-containing alloy and an alloy powder useful for producing the high performance phosphor. The method for producing the phosphor includes heating a raw material for a phosphor in whole or in part comprising an alloy containing two or more different metal elements under a nitrogen-containing atmosphere and heating the raw material for a phosphor under conditions such that the temperature change per minute is 50° C. or lower. Using an alloy as all or part of the raw material constituting the phosphor precursor, it is possible to suppress the rapid progression of nitridation during heat treatment and industrially produce a phosphor with high performance, in particular, high brightness.Type: ApplicationFiled: January 5, 2012Publication date: July 5, 2012Applicant: Mitsubishi Chemical CorporationInventors: Naoto KIJIMA, Hiromu Watanabe, Keiichi Seki
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Patent number: 8142838Abstract: A method for making a liquid crystal display screen includes the steps of: providing a base comprising a surface; manufacturing a substrate, wherein manufacturing a substrate comprises: placing a carbon nanotube layer on the surface of the base, the carbon nanotube layer comprising a plurality of carbon nanotubes substantially aligned along a same direction; applying a fixing layer on a surface of the carbon nanotube layer, thereby obtaining a first substrate; and supplying a liquid crystal layer, wherein the carbon nanotubes of a first substrate are arranged perpendicular to that of a second substrate.Type: GrantFiled: November 20, 2008Date of Patent: March 27, 2012Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Wei-Qi Fu, Liang Liu, Kai-Li Jiang, Shou-Shan Fan
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Patent number: 8071159Abstract: The present invention provides a method of making pure white light source. A phosphor powder which at least comprises three elements Zn, Se, and O is used for being excited by a purple-LED to emit pure red light (650 nm). The phosphor powder is coated on the purple-LED (Ex. chromaticity coordinate of x:0.26, y:0.10), and then placed aside a pure green-LED (or chip), when the purple-LED and the green-LED are electrified, a pure white light source with high color rendering index and high color saturation is obtained.Type: GrantFiled: March 23, 2009Date of Patent: December 6, 2011Inventor: Wade Lee Wang
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Patent number: 8057849Abstract: A method of forming conductive features on a substrate, the method includes reacting a metal compound with a reducing agent in the presence of a stabilizer in a reaction mixture comprising the metal compound, the reducing agent, and the stabilizer, wherein the reaction mixture is substantially free of solvent, to form a plurality of metal nanoparticles with molecules of the stabilizer on the surface of the metal nanoparticles. After isolating the plurality of metal nanoparticles, a liquid composition that includes a polymeric binder, a liquid and the plurality of metal nanoparticles with molecules of the stabilizer on the surface of the metal nanoparticles is deposited on a substrate by a liquid deposition technique to form a deposited composition. The deposited composition is then heated to form conductive features on the substrate.Type: GrantFiled: December 4, 2009Date of Patent: November 15, 2011Assignee: Xerox CorporationInventors: Ping Liu, Yiliang Wu, Anthony J. Wigglesworth, Nan-Xing Hu
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Publication number: 20110253298Abstract: A method for manufacturing a phosphor film containing phosphor particles includes steps of bringing a pressing member into contact with a precursor layer containing phosphor particles and an organic resin, and heating the precursor layer to a temperature at which the organic resin is thermally decomposed or above while the precursor layer is in contact with the pressing member.Type: ApplicationFiled: April 14, 2011Publication date: October 20, 2011Applicant: CANON KABUSHIKI KAISHAInventor: Haruo Tomono
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Patent number: 7998526Abstract: A system and method for depositing a phosphor composition onto a light emitting device improves manufacturing yield, simplifies conventional processes, and decreases costs. For example, a method of dispensing a phosphor composition onto a light emitting device includes dispensing a portion of the phosphor composition onto the light emitting device utilizing a plurality of colored phosphor dispensers each for dispensing a respective type of phosphor. Power is applied to the light emitting device to emit light, and a characteristic the light emitted by the light emitting device is detected. Phosphor mixing and phosphor dispensing are dynamically controlled. Therefore the color characteristics of phosphor dispensed on LEDs are consistent. The system and method may also reduce the difference between detected characteristic of the light and a desired characteristic of the light.Type: GrantFiled: December 1, 2009Date of Patent: August 16, 2011Assignee: Bridgelux, Inc.Inventors: Tao Xu, Rene Helbing
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Publication number: 20110045169Abstract: Disclosed is a film of dispersed carbon nanotubes that emit intensive light with a particular wavelength. The film of dispersed carbon nanotubes is a film in which a plurality of carbon nanotubes are dispersed in a transparent binder, and each carbon nanotube is dispersed isolatedly in an oriented manner.Type: ApplicationFiled: October 27, 2010Publication date: February 24, 2011Applicants: THE UNIVERSITY OF TOKYO, KONICA MINOLTA HOLDINGS, INC.Inventors: Shigeo MARUYAMA, Yuhei MIYAUCHI, Yoshikazu KONDO, Atsushi SAITO
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Publication number: 20110019265Abstract: The present invention can realize bright white display, a high contrast black-white display and full color display with a simple structure of element members, and provide a display element exhibiting high durability and a method of forming a porous layer in the display element. Also disclosed is a display element comprising a porous layer and an electrolyte between a pair of facing electrodes, wherein the porous layer comprises particles bonded to each other by a metal or nonmetal oxide, the metal or nonmetal oxide deposited from a treatment solution comprising a deposition promoter and a complex comprising a metal or nonmetal ion and a ligand via reaction of the ligand with the deposition promoter.Type: ApplicationFiled: July 8, 2009Publication date: January 27, 2011Inventor: Akihito Hisamitsu
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Publication number: 20110014416Abstract: A patterned fluorescent fine particle film that retains the intrinsic functions of fluorescent fine particles and that can be formed on any substrate at a desired thickness, a method for manufacturing the patterned fluorescent fine particle film, and a display apparatus including the patterned fluorescent fine particle film are provided.Type: ApplicationFiled: June 5, 2008Publication date: January 20, 2011Inventor: Kazufumi Ogawa
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Patent number: 7842333Abstract: The invention relates to a method of forming a phosphor film and a method of manufacturing an LED package incorporating the same. The method of forming a phosphor film includes mixing phosphor and light-transmitting beads in an aqueous solvent such that the nano-sized light-transmitting beads having a first charge are adsorbed onto surfaces of phosphor particles having a second charge. The method also includes coating a phosphor mixture obtained from the mixing step on an area where the phosphor film is to be formed, and drying the coated phosphor mixture to form the phosphor film. The invention further provides a method of manufacturing an LED package incorporating the method of forming the phosphor film.Type: GrantFiled: September 22, 2006Date of Patent: November 30, 2010Assignee: Samsung LED Co., Ltd.Inventors: Hai Sung Lee, Jong Myeon Lee, Ho Sung Choo, Myung Whun Chang, Youn Gon Park
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Publication number: 20100266750Abstract: Provided is a method of manufacturing a plasma display panel including: a front plate on which a protective layer is formed on a dielectric layer, and a rear plate which is arranged to face the front plate so as to form a discharge space and on which a barrier rib for partitioning the discharge space is provided, wherein the protective layer of the front plate is formed by depositing an underlying film on the dielectric layer, coating a volatile solvent, in which aggregated particles obtained by aggregating a plurality of crystal particles including metal oxide are dispersed, on the underlying film, performing reduced-pressure drying, and attaching the aggregated particles to the underlying film.Type: ApplicationFiled: March 10, 2009Publication date: October 21, 2010Inventors: Masashi Morita, Haruhiro Yuki, Kazuhiro Yokota, Seiji Nishitani, Satoshi Maeshima
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Patent number: 7799369Abstract: A light active device includes a semiconductor particulate dispersed within a carrier material. A first contact layer is provided so on application of an electric field charge carriers having a polarity are injected into the semiconductor particulate through the carrier material. A second contact layer is provided so on application of the electric field to the second contact layer charge carriers having an opposite polarity are injected into the semiconductor particulate through the carrier material. The semiconductor particulate comprises at least one of an organic and an inorganic semiconductor. The semiconductor particulate may comprise an organic light active particulate. When constructed as a light emitting device, an electric field applied to the semiconductor particulate through the carrier causes charge carriers of opposite polarity to be injected into the semiconductor particulate. The charge carriers combine to form carrier pairs which decay and give off light.Type: GrantFiled: June 14, 2006Date of Patent: September 21, 2010Inventor: John J. Daniels
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Publication number: 20100230667Abstract: The present invention is intended to provide an organic LED element in which the extraction efficiency is improved up to 80% of emitted light, and provides a translucent substrate comprising a translucent glass substrate; a scattering layer formed on the glass substrate and comprising a glass which contains a base material having a first refractive index for at least one wavelength of light to be transmitted and a plurality of scattering materials dispersed in the base material and having a second refractive index different from that of the base material; and a translucent electrode formed on the scattering layer and having a third refractive index higher than the first refractive index, wherein distribution of the scattering materials in the scattering layer decreases toward the translucent electrode.Type: ApplicationFiled: May 7, 2010Publication date: September 16, 2010Inventors: Nobuhiro Nakamura, Motoshi Ono, Kenji Imakita, Hidefumi Odaka, Nao Ishibashi, Kazutaka Hayashi
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Publication number: 20100224893Abstract: A process for arranging a powder layer comprising a powder on a substrate surface of a substrate. A substrate having a substrate surface is provided, and a mixture comprising the powder and an adhesion promoter is applied on the substrate surface. The adhesion promoter is removed and the powder layer is fixed on the substrate surface.Type: ApplicationFiled: June 6, 2007Publication date: September 9, 2010Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventor: Ute Liepold
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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: 20100119839Abstract: A thin-film phosphor layer can be formed by an improved deposition method involving: (1) forming a phosphor powder layer that is substantially uniformly deposited on a substrate surface; and (2) forming a polymer binder layer to fill gaps among loosely packed phosphor particles, thereby forming a substantially continuous layer of thin film.Type: ApplicationFiled: November 12, 2009Publication date: May 13, 2010Inventor: Chieh Chen
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Patent number: 7700200Abstract: A light emitting device includes a semiconductor nanocrystal in a layer. The layer can be a non-polymeric layer.Type: GrantFiled: March 28, 2003Date of Patent: April 20, 2010Assignees: Massachusetts Institute of Technology, Universal Display CorporationInventors: Vladimir Bulović, Seth A. Coe, Wing-Keung Woo, Moungi G. Bawendi
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Patent number: 7648729Abstract: This mask includes: a substrate in which an aperture is formed; a mask member which, along with being formed with a plurality of through holes, is joined to the substrate in correspondence to the aperture; and spacers which hold the substrate and the mask member with a predetermined gap between them.Type: GrantFiled: February 23, 2004Date of Patent: January 19, 2010Assignee: Seiko Epson CorporationInventor: Makoto Nakadate
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Patent number: 7615248Abstract: Provided are a method for preparing a blue-emitting BAM phosphor which includes: surface-treating phosphor particles with metal oxide nanoparticles, and a blue-emitting BAM phosphor prepared by the method. The blue-emitting BAM phosphor exhibits better dispersibility and flowability in coating slurry without undergoing a reduction in initial brightness, thereby providing less color variation at ends of a BLU lamp. The blue-emitting BAM phosphor can be directly applied in a currently available method of manufacturing a BLU lamp, and when mixed with existing red and green phosphors, can remarkably reduce color variation at ends of a lamp. Therefore, the quality of a BLU lamp for large-scale displays can be greatly improved.Type: GrantFiled: December 29, 2005Date of Patent: November 10, 2009Assignee: Daejoo Electronic Materials Co., Ltd.Inventors: Kwang-wook Choi, Chang-seok Ryoo, Do-hoon Kim, Ick-soon Kwak, Tae-hyun Kwon
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Patent number: 7601386Abstract: A liquid material is placed on a substrate as a droplet to form a film on the substrate. At least either one of a concentration of solids in the liquid material and a drying rate of the droplets is used as a parameter to control a form of a dried film of the droplets. Moreover, a first droplet is placed on a substrate, the first droplet is dried to form a dried film of a form in which a thickness of an edge is larger than that of a central part, and a second droplet is placed in a region surrounded by the edge section of a dried film of the first droplet to form a dried film of the second droplet. Furthermore, the liquid material is placed on the substrate as a droplet to form a film on the substrate, and a dried film of the droplet is formed by contracting the droplet.Type: GrantFiled: June 16, 2004Date of Patent: October 13, 2009Assignee: Seiko Epson CorporationInventor: Takashi Masuda
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Publication number: 20090213591Abstract: The present invention relates to a reflective member (7). The reflective member (7) includes a reflective layer 61 (7) formed to be porous using an inorganic material. The reflective layer 61 (7) has a porosity of 15-43%. Such reflective layer 61 (7) is formed by partly combining a plurality of inorganic particles with each other.Type: ApplicationFiled: March 25, 2006Publication date: August 27, 2009Applicant: KYOCERA CORPORATIONInventors: Kousuke Katabe, Yuki Mori
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Publication number: 20090081359Abstract: The invention relates to a patternable coatable electrically conductive layer comprising a fluid-coated electrically conductive material, wherein the fluid-coated electrically conductive material has sufficient conductivity to induce an electric field strong enough to change the optical state of a light modulating material and a display comprising a substrate, at least one patternable coatable electrically conductive layer comprising a fluid-coated electrically conductive material, wherein said fluid coated electrically conductive material has sufficient conductivity to induce an electric field strong enough to change the optical state of a light modulating material which has a first and a second field-switched stable optical state, and an imaging layer comprising said light modulating material disposed over said at least one patternable fluid-coated electrically conductive layer.Type: ApplicationFiled: November 17, 2008Publication date: March 26, 2009Applicant: Industrial Technology Research Institute (ITRI)Inventors: Stanley W. Stephenson, Mary C. Brick, Terry J. Martin
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Patent number: 7476411Abstract: A liquid suspension of phosphor particles and method for depositing the liquid suspension. The suspension advantageously has a low viscosity with a high solids-loading of phosphor particles. The apparent density of the phosphor particles is well-controlled to enable the particles to be dispersed in the liquid vehicle. The suspension is useful in direct-write tools such as ink-jet devices.Type: GrantFiled: January 31, 2000Date of Patent: January 13, 2009Assignee: Cabot CorporationInventors: Mark J. Hampden-Smith, Toivo T. Kodas, James Caruso, Daniel J. Skamser
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Patent number: 7311936Abstract: While a corner part 35 of a skin 7 formed between side covers 30 and 31 has a sector shape, a corner part 29 of a base material 9 also has a sector shape. When resin is charged between the skin 7 and the base material 9, the sector-shaped corner part 35 is bent under a pressure at which the resin is charged to stretch outward, thereby bringing the sector-shaped corner part 35 into absolute contact with the sector-shaped corner part 29 of the base material 9. This prevents resin leakage from between the skin 7 and the base material 9.Type: GrantFiled: February 23, 2006Date of Patent: December 25, 2007Assignee: DaikyoNishikawa CorporationInventor: Shingo Niimi
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Patent number: 7291672Abstract: The paste composition of the present invention is a paste composition comprising (i) a polyurethane resin which comprises (a) a recurring unit represented by the formula (1) and (b) a recurring unit represented by the formula (2), a molar fraction of said recurring unit (a) being in the range of 0.35 to 0.99, a molar fraction of said recurring unit (b) being in the range of 0.01 to 0.65, the total of both the molar fractions being 1, (ii) a solvent and (iii) a powder. By the use of the paste composition, dielectric layers, sealing products, barrier ribs, phosphors, etc. can be favorably formed.Type: GrantFiled: October 27, 2004Date of Patent: November 6, 2007Assignee: Mitsu Takeda Chemicals, Inc.Inventors: Daiki Taneichi, Manabu Tsuruta, Masahiko Mitsuduka
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Patent number: 7223353Abstract: A phosphor layer for an electroluminescent panel comprises a phosphor powder held in a binder. The binder comprises a mixture of two constituents, one of which is a drying oil or a semi-drying oil or a derivative and the other constituent is a sol-gel precursers. Examples of suitable oils are linseed oil, rape seed oil, sunflower oil and soyabean oil. Examples of suitable sol-gel precursers are tetraethyl orthosilicate, boron iso-propoxide, aluminium sec-butoxide and titanium iso-propoxide. Metal salts such as metal alkoxides, metal acetates and metal nitrates may be mixed with the sol-gel precursers.Type: GrantFiled: April 29, 2002Date of Patent: May 29, 2007Assignee: Burnel UniversityInventors: Aron Vecht, Jack Silver, Dominic Davies, Philip Titler
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Patent number: 7140940Abstract: The present invention intends to provide a manufacturing method for a PDP that can continuously apply phosphor ink for a long time and can accurately and evenly produce phosphor layers even when the cell construction is very fine. To do so, phosphor ink is continuously expelled from a nozzle while the nozzle moves relative to channels between partition walls formed on a plate so as to scan and apply phosphor ink to the channels. While doing so the path taken by the nozzle within each channel between a pair of partition walls is adjusted based on position information for the channel. When phosphor particles is successively applied to a plurality of channels, phosphor ink is continuously expelled from the nozzle even when the nozzle is positioned away from the channels. The phosphor ink is composed of: phosphor particles that have an average particle diameter of 0.Type: GrantFiled: October 18, 2002Date of Patent: November 28, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyuki Kawamura, Shigeo Suzuki, Masaki Aoki, Kanako Miyashita, Mitsuhiro Ohtani, Hiroyuki Kado, Keisuke Sumida, Nobuyuki Kirihara
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Patent number: 7105200Abstract: A thick-film sheet member producing method including: (a) a support-body preparing step of preparing a support body having a film formation surface provided by a particle layer constituted by high-melting-point particles which are held together with a resin and which have a melting point higher than a predetermined temperature; (b) a paste-film forming step of forming a paste film on the film formation surface, by applying a paste onto the film formation surface; and (c) a firing step of subjecting the support body on which the paste film has been formed, to a heat treatment effected at the predetermined temperature, so as to burn the resin included in the particle layer, whereby the high-melting-point particles become unbound from each other in absence of the resin that has been burned. The paste film is sintered in the firing step, whereby a thick film is formed of the sintered paste film.Type: GrantFiled: September 10, 2002Date of Patent: September 12, 2006Assignee: Noritake Co., LimitedInventors: Susumu Sakamoto, Masayuki Hiroshima, Shigeo Mori, Eiji Naraki, Koichi Sato, Hirotoshi Takechi
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Patent number: 7021982Abstract: Conductive or semiconductive binders, both inorganic and organic, are used for providing sufficient binding action to hold powder phosphor particles together, as well as to the glass screen of a field emission display device.Type: GrantFiled: December 4, 2002Date of Patent: April 4, 2006Assignee: Micron Technology, Inc.Inventors: Surjit S. Chadha, Charles M. Watkins
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Patent number: 7008739Abstract: The present invention is to provide a process for manufacturing a fluorescent film wherein the order of coating the fluorescent films of a color Braun tube and the thickness of the film are adjusted to reduce the amount of red fluorescent material employed for red fluorescent film without deteriorating the quality of the red fluorescent film, thereby lowering the cost for manufacturing. The process first forms the red fluorescent film on the panel of a color Braun tube and then forms the blue and green fluorescent films subsequently thereafter.Type: GrantFiled: April 16, 1996Date of Patent: March 7, 2006Assignee: LG Electronics Inc.Inventors: Seoug Wan Kang, Kyung Ho Lee
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Patent number: 6926927Abstract: A chalcogen film is applied to an acute tip of a glass fiber and the acute tip is held in physical contact with a metal layer so as to induce diffusional reaction for generation of a metal chalcogenide nano-particle or nano-particles at the acute tip. In the case where the chalcogen film is directly applied to the acute tip, the generated nano-particle or nano-particles are transferred from the acute tip to a corresponding part of the metal layer. When a silane-adsorbed film is pre-formed on the acute tip before application of the chalcogen film, the generated nano-particle or nano-particles are fixed to the acute tip. The nano-particles are several to tens in number with very narrow distribution of particle size. Since particle size and fixed position of the nano-particle or nano-particles can be controlled with high freedom, the nano-particle or nano-particles are useful as a light-emitting or photo-detecting element.Type: GrantFiled: November 26, 2001Date of Patent: August 9, 2005Assignee: Japan Science and Technology CorporationInventor: Akito Ishida
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Patent number: 6913787Abstract: This invention relates to coated particles used as phosphor particles for a phosphor screen of a display and a coating method for such particles. In the coating method of the present invention, first particles having a mean particle diameter of 3 to 10 ?m are fluidized, and slurry drops obtained by suspending second particles having a mean particle diameter of 5 to 500 nm are generated from a spray nozzle or the like. Then, the fluidized first particles and the slurry drops are collided with each other, and thereby the second particles are coated on the surfaces of the first particles. Thereby, this invention is able to present coated particles wherein each surface of the first particles is uniformly coated with the second particles that are more microscopic than the first particles.Type: GrantFiled: June 18, 2003Date of Patent: July 5, 2005Assignee: Sony CorporationInventors: Takahiro Igarashi, Tsuneo Kusunoki, Katsutoshi Ohno
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Patent number: 6890593Abstract: A method for coating moisture sensitive inorganic particles, such as phosphors, comprising mixing the inorganic particles having a particle size of about 1 to 100 micrometers with nanometer-sized coating particles, and firing the mixture to soften or melt the nanometer-sized particles about the inorganic particles, forming a moisture impervious coating. The coated particles are washed to remove excess particles, and dried. Coated moisture sensitive phosphor particles are impervious to moisture.Type: GrantFiled: April 18, 2003Date of Patent: May 10, 2005Assignee: Sarnoff CorporationInventor: Yongchi Tian
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Patent number: 6833160Abstract: A metal M is chosen from the group formed by yttrium, aluminum and lanthanum, and a watery solution of a complex of M and an organic chelating agent is added to a suspension of luminescent material, which causes a layer of M2O3 to be deposited on the luminescent material, which is them separated, dried and fired.Type: GrantFiled: May 10, 2002Date of Patent: December 21, 2004Assignee: Koninklijke Philips Electronics N.V.Inventors: Thomas Jüstel, Jacqueline Merikhi, Hans Nikol, Cornelis R. Ronda
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Patent number: 6811813Abstract: A method for coating moisture sensitive inorganic particles, such as phosphors, comprising mixing the inorganic particles which have a particle size of about 1 to 100 micrometers with nanometer sized coating particles, as of silica, and firing to soften or melt the nanometer sized particles, forming a moisture-impervious inorganic coating on the inorganic particles. The coated particles are washed to remove any uncoated particles and dried.Type: GrantFiled: October 13, 1999Date of Patent: November 2, 2004Assignee: Sarnoff CorporationInventor: Yongchi Tian
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Patent number: 6737103Abstract: A portable, self-contained, electronic radioscopic imaging system uses a pulsed X-ray source, a remote X-ray sensor, and a self-contained, display and controller unit to produce, store, and/or display digital radioscopic images of an object under investigation in low voltage imaging environments such as medical applications including mammography and tissue imaging, and industrial radiography of low-density structures, or the like. The radiographic system uses an X-ray converter screen for converting impinging X-ray radiation to visible light, and thus each point impinged on the screen by X-ray radiation scintillates visible light emissions diverging from the screen. An image sensor, i.e., a CCD camera, is configured to sense the visible light from the screen. An aspheric objective lens operable with the CCD camera spatially senses visible light within a collection cone directed outwardly from the image sensor. An emission modification lens layer, e.g.Type: GrantFiled: April 9, 2002Date of Patent: May 18, 2004Assignee: Science Applications International CorporationInventors: Raulf M. Polichar, Richard C. Schirato, Janis Baltgalvis
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Patent number: 6727048Abstract: A method for photo-imageable lacquer deposition for a display device. In one embodiment, a layer of photo-imageable lacquer is deposited on top of a faceplate of a display device. Portions of the lacquer layer are removed and selected portions of the lacquer layer remain deposited in the sub-pixel areas of the faceplate.Type: GrantFiled: December 20, 2001Date of Patent: April 27, 2004Assignees: Candescent Intellectual Property Services, Inc., Candescent Technologies CorporationInventors: Olof M. Trollsas, Theodore S. Fahlen
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Patent number: 6726952Abstract: A method of applying photo-luminescent pigment to a substrate, such as an aluminum or metal strip containing channels or depressions, includes preparing a dry powder formulation comprising a photo-luminescent pigment and a carrier/fixer, depositing the dry powder formulation onto the substrate surface, and heating to fuse the dry powder formulation to the substrate surface. The photo-luminescent pigment can be applied using an apparatus which includes a hopper adapted to contain the dry powder formulation, one or more orifices adapted to allow transfer of the dry powder formulation from the hopper to a substrate surface and a guide rail system for locating the substrate surface in both a fixed horizontal plane and a fixed vertical plane below the hopper and orifice.Type: GrantFiled: June 3, 2002Date of Patent: April 27, 2004Assignee: Ecoglo LimitedInventors: George Trevor Dimond, Paul Rodney Sapsford
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Patent number: 6660324Abstract: A method for fabricating viewing screen (100) includes the steps of: adding to a black surround paste a ductile metal paste, adding to the black surround paste lead titanate particles, depositing the black surround paste on glass substrate (110), and heating the black surround paste and glass substrate (110) to affix the black surround paste to glass substrate (110), thereby forming black matrix (111). The ductile metal paste and lead titanate particles are added in amounts sufficient to realize an extent of cracking in black matrix (111) upon repeated heating to a temperature within a range of 450-600° C. that is significantly less than that exhibited by an unimproved black matrix, which is made only from the material of the black surround paste.Type: GrantFiled: April 16, 2002Date of Patent: December 9, 2003Assignee: Motorola, Inc.Inventors: Shawn M. O'Rourke, Nick R. Munizza, Matthew Stainer
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Publication number: 20030124246Abstract: The traditional production method of white light LED is adding YAG phospher on blue light chips which causes two-wavelength white light that is only suitable for indication usage. Moreover, the difficulty in controlling adequate amount of phosphor powder leads to inaccurate color of light. Another production method for three wavelength white light by UV chip arousing R.G.B.-mixed phosphor powder is degenerated in its life and quality due to lack of high-efficiency UV LED chips and UV-typed encapsulating resin.Type: ApplicationFiled: June 20, 2002Publication date: July 3, 2003Applicant: Solidlite CorporationInventor: Hsing Chen