Metal Oxide- Or Silicon-containing Coating (e.g., Glazed, Vitreous Enamel, Etc.) Patents (Class 427/376.2)
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Publication number: 20020176933Abstract: Paste for a transparent insulating film of a plasma display panel, the paste including powder glass contains lead oxide, silicon oxide, boron oxide, barium oxide, and aluminum oxide, solvent, and resin.Type: ApplicationFiled: December 5, 2001Publication date: November 28, 2002Inventors: Tastuo Mifune, Tomohiro Hayashi
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Publication number: 20020176943Abstract: An oxide superconductor wire is prepared by preparing a length of precursor wire for processing into an oxide superconductor wire and coating the precursor wire with an isolating layer. The coated wire is wound onto a reel in a spiralling manner, such that each turn of the spiral is in alignment with the preceding turn of the spiral along an axis perpendicular to the axis of winding. The wound precursor wire is then heated to form the oxide superconductor. The removable isolating layer is prepared by coating the wire with a solution including a metal oxide and a porosity-inducing component, and heating the coated wire so as to induce porosity and control grain size of the metal oxide so as to render the coating removable. The coating should function to isolate the overlapping turns of the wound wire from neighboring wires, so that not diffusion bonding or adherence between the turns occurs.Type: ApplicationFiled: April 25, 2002Publication date: November 28, 2002Inventors: John B. Pereira, Steven Hughson, Elliott Thompson
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Publication number: 20020172757Abstract: An automated system for dip coating a superconducting material on a substrate is disclosed. The system includes an actuator, a pick up station, a dip coating station that comprises a reservoir of a dip coating formulation, a drying station that includes a source of heated air and a conveyor for moving the actuator from the pick up station to the dip coating station and from the dip coating station to the drying station. The actuator includes an arm for carrying a substrate. The arm is capable of being moved vertically downward to submerse the substrate in the dip coating reservoir and the arm is also capable of being moved vertically upward to lift the substrate out of the dip coating reservoir. A method for automatically dip coating a substrate with a superconducting material is also disclosed.Type: ApplicationFiled: March 6, 2001Publication date: November 21, 2002Inventors: Christine L. Vrtis, James Sharp
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Publication number: 20020172775Abstract: A method of making a coated substrate includes providing a substrate having at least one functional coating with a first emissivity value; depositing at least one coating material having a second emissivity value over at least a portion of the at least one functional coating wherein the deposited coating has a thickness ranging from greater than 100 Å to less than 10 microns and a refractive index ranging from 1.4 to 2. The resulting coating stack has an emissivity value greater than the emissivity value of the functional coating. Optionally the coated substrate is heated whereby the coated substrate can be bent to a desired shape and/or tempered.Type: ApplicationFiled: April 25, 2002Publication date: November 21, 2002Inventors: Harry Buhay, James J. Finley, James P. Thiel, John P. Lehan
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Publication number: 20020172774Abstract: Methods for fabricating a layer of oxide on a silicon carbide layer are provided by forming the oxide layer on the silicon carbide layer and then annealing the oxide layer in an N2O environment at a predetermined temperature profile and at a predetermined flow rate profile of N2O. The predetermined temperature profile and the predetermined flow rate profile are selected so as to reduce interface states of the oxide/silicon carbide interface with energies near the conduction band of SiC.Type: ApplicationFiled: April 12, 2001Publication date: November 21, 2002Inventor: Lori A. Lipkin
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Publication number: 20020168478Abstract: The present invention relates to a transparent conductive layered structure having a transparent substrate and a transparent conductive layer and transparent coating layer formed in succession on this substrate, used in, for instance, the front panel of CRT, etc., display devices. The main components of said transparent conductive layer are noble metal microparticles with a mean particle diameter of 1 to 100 nm, wherein the microparticles are made from gold and/or platinum and silver and the gold and/or platinum content is within a range exceeding 50 wt % up to 95 wt %, and a binder matrix.Type: ApplicationFiled: April 30, 2002Publication date: November 14, 2002Applicant: SUMITOMO METAL MINING CO., LTD.Inventors: Kenji Kato, Masaya Yukinobu
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Patent number: 6479100Abstract: The present invention provides a method of forming a ruthenium seed layer on a substrate comprising the steps of introducing a ruthenium-containing compound into a CVD apparatus; introducing oxygen into the CVD apparatus; maintaining an oxygen rich environment in the process chamber for the initial formation of a ruthenium oxide seed layer; vaporizing the ruthenium-containing compound; depositing the ruthenium oxide seed layer onto the substrate by chemical vapor deposition; and annealing the deposited ruthenium oxide seed layer in a gas ambient forming a ruthenium seed layer. Also provided is a method of depositing a ruthenium thin metal film using a metalorganic precursor onto a CVD ruthenium seed layer by metalorganic chemical vapor deposition.Type: GrantFiled: April 5, 2001Date of Patent: November 12, 2002Assignee: Applied Materials, Inc.Inventors: Xiaoliang Jin, Christopher P. Wade, Xianzhi Tao, Elaine Pao, Yaxin Wang, Jun Zhao
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Publication number: 20020164429Abstract: An embodiment of the present invention provides methods for forming a carbon-containing layer having a low dielectric constant and good gap-fill capabilities. A method includes depositing a carbon-containing layer on a substrate and transforming the carbon-containing layer to remove at least some of the carbon. The transforming step may include annealing the carbon-containing layer in a furnace containing a hydrogen atmosphere, for example. The carbon-containing layer may be a carbon-doped silicon oxide material, where the transforming step changes the carbon-doped silicon oxide. Additionally, the method may include subjecting the annealed layer to a hydrogen and/or low oxygen plasma treatment to further remove carbon from the layer. Additionally, a step of adding a capping layer to the annealed, plasma treated material is provided.Type: ApplicationFiled: February 22, 2001Publication date: November 7, 2002Applicant: Applied Materials, Inc.Inventors: Frederic Gaillard, Li-Qun Xia, Jen Shu, Ellie Yieh, Tian-Hoe Lim
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Publication number: 20020164417Abstract: It is a method of repairing a ceramic coating of an article after use of this article in a high temperature environment disclosed. The ceramic coating is removed locally at spalled areas, at the areas where the ceramic coating is removed locally a mixture including a powder of zirconia stabilized with one or a combination of yttria, calcia, scandia, magnesia, ceria and oxides of the rare earth group, and hydrated metallic halides as a binder is applied and the applied ceramic powder is dried.Type: ApplicationFiled: April 12, 2002Publication date: November 7, 2002Inventors: Abdus S. Khan, John Fernihough, Maxim Konter
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Publication number: 20020155226Abstract: The invention includes a bilayer antireflection coating, multilayer antireflection coatings, and a method for making a multilayer antireflective coated substrate. The bilayer and multilayer coatings include layers having metallic oxides, at least one layer in each of such coatings having as a material with an index of refraction at least about 1.90, a layer comprising oxides of zirconium such that when subjected to heat treatments, such as tempering, the coatings substantially retain their optical properties. The coatings further include layers having materials of low index of refraction which include oxides of aluminum which provide coating stability and increased precursor storage life. In the method, the layers are applied by successive dip coating techniques using solvent-based solutions and the resulting coatings can be used to coat large sized substrates which can be later cut, trimmed and/or otherwise shaped and later heat treated with substantial retention of optical properties.Type: ApplicationFiled: May 6, 2002Publication date: October 24, 2002Applicant: Denglas Technologies, LLCInventors: Nanning J. Arfsten, Axel Reich, Frank Rodriguez, James F. Gavlas
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Publication number: 20020155227Abstract: The method for the manufacture of a functional ceramic layer (10) comprises the following two steps:Type: ApplicationFiled: March 19, 2002Publication date: October 24, 2002Applicant: Sulzer markets and Technolgy AGInventors: Rajiv Damani, Andreas F.J. Kaiser
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Publication number: 20020155299Abstract: Methods and articles are disclosed in which a substrate is provided with a photo-induced hydrophilic surface by forming a photo-induced hydrophilic coating on the substrate by spray pyrolysis, chemical vapor deposition, or magnetron sputter vacuum deposition. The coating can have a thickness of 50 Å to 500 Å, a root mean square roughness of less than 5, preferably less than 2, and photocatalytic activity of less than 3.0×10−3 cm−1 min−1±2.0×10−3 cm−1 min−1. The substrate includes glass substrates, including glass sheets and continuous float glass ribbons.Type: ApplicationFiled: February 14, 2002Publication date: October 24, 2002Inventors: Caroline S. Harris, Janos Szanyi
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Patent number: 6468584Abstract: A method for manufacturing a conductive thin film patterned substrate which is capable of being practiced at a reduced cost without causing environmental pollution while eliminating any troublesome after-treatment. An insulating substrate made of glass or the like is formed thereon with an InSnO, SnSbO, ZnAlO or Al thin film. Then, a phosphate low-softening glass paste layer is formed on the thin film. A portion of the thin film contiguous to an insulating layer made of the low-softening glass paste melts into a glass region to form an insulating layer region, so that a conductive thin film region may be patterned as electrodes.Type: GrantFiled: October 16, 2000Date of Patent: October 22, 2002Assignee: Futaba CorporationInventors: Tatsuo Yamaura, Shigeo Itoh
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Publication number: 20020150685Abstract: The invention proposes a process for marking a glass body (14), characterized in that it includes the following steps:Type: ApplicationFiled: March 12, 2002Publication date: October 17, 2002Inventor: Eric Gueusquin
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Publication number: 20020145134Abstract: A composition for application to a substrate to form a an electrically conductive coating thereon. The composition includes a sol-gel solution filled with a conductive powder. The coating may be conductive or resistive depending on the application. A process is provided for applying such a coating by mixing a sol-gel solution with up to about 90% by weight of the solution of a conductive powder selected from the group consisting of ceramics, inter-ceramics, semi-conductors and metals so as to provide a uniform stable dispersion. The stable dispersion is applied to a substrate and the coated substrate is fired at a temperature sufficient to remove organic constituents and to produce at least a partially conductive film on the substrate. A heating device is also provided which is a product of the above process.Type: ApplicationFiled: March 8, 2002Publication date: October 10, 2002Inventors: Tim Olding, Mark Barrow, David Barrow
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Publication number: 20020146510Abstract: A method for preparing a release coating and applying it to crucibles used to contain molten material while it solidifies, by mixing a release coating power with a dry organic binder into a powder and binder dry mixture, mixing a defoamer with a liquid into a liquid and defoamer mixture, mixing the dry mixture with the liquid and defoamer mixture into a wet release coating, sieving to remove lumps and particles, checking the viscosity, wet-spraying onto a crucible, evaporating the liquid from the wet release coating so as to leave a dry release coating on the crucible, and separating the binder from the dry release coating by thermal decomposition.Type: ApplicationFiled: April 6, 2001Publication date: October 10, 2002Inventors: Michael A. Costantini, Mohan Chandra, Keith Matthei, Alleppey V. Hariharan
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Publication number: 20020136934Abstract: The subject of the invention is a glass-, ceramic- or vitroceramic-based substrate (1) provided on at least part of at least one of its faces with a coating (3) with a photocatalytic property containing at least partially crystalline titanium oxide.Type: ApplicationFiled: February 22, 2002Publication date: September 26, 2002Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Philippe Boire, Xavier Talpaert
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Publication number: 20020136835Abstract: A component comprises a silicon-based substrate; and a protective coating for the substrate. The protective coating includes tantalum oxide (Ta2O5) and an additive for suppressing transformation from beta Ta2O5 to alpha Ta2O5.Type: ApplicationFiled: November 21, 2001Publication date: September 26, 2002Inventors: Chien-Wei Li, Derek Raybould, Liang A. Xue
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Patent number: 6455102Abstract: Silica-based refractories are impregnated with protective material that is more resistant towards attack by corrosive species. The protective material coats the surface of the refractory matrix and fills some of the cavity volume of its pores, crevices, surfaces imperfections and irregularities. The protective material is positioned by impregnating the refractory with a precursor which, under the input of energy, is converted into the corrosion resistant protective material.Type: GrantFiled: September 20, 2000Date of Patent: September 24, 2002Assignee: Praxair Technology, Inc.Inventors: William Thoru Kobayashi, Elson Longo Da Silva, Carlos Alberto Paskocimas
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Patent number: 6455100Abstract: A method is disclosed for providing inorganic and/or organic coating compositions onto rotor cores to eliminate soldering during aluminum injection. These coatings can also be applied upon electric motor rotors and/or stators laminates as well as other electronic components such as transformers. The disclosed method provides at least one film or layer of a coating composition within channels or bar slots defined by the rotor of the electric motor core/rotor (depending upon the design of the motor the slots can be defined within the rotor or open ended along the longitudinal axis of the rotor). The coating composition is also typically applied upon all exposed surfaces of the rotor, e.g., within the channels and exterior surfaces of the rotor. The coated rotor is then contacted with a molten metal. The coating composition functions to isolate the laminates (e.g., steel) of the rotor from a molten metal (e.g.Type: GrantFiled: April 13, 2000Date of Patent: September 24, 2002Assignee: Elisha Technologies Co LLCInventors: Robert L. Heimann, William L. Dalton
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Publication number: 20020127330Abstract: An optically clear protective thin film having covalent chemical bonds on a molecular level between organic polymer and in situ generated silica molecules is formed from a hydrolyzed coating solution of tetraalkyl orthosilicate, epoxyalkylalkoxy silanes, (math)acryloxyalkylalkoxy silanes and solvent.Type: ApplicationFiled: January 24, 2002Publication date: September 12, 2002Inventors: Dan L. Jin, Brij P. Singh
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Publication number: 20020127335Abstract: A method for preparing and forming a thick coating of lead-zirconate-titanate (PZT) on a substrate, includes preparing a first solution by dissolving a lead precursor in a mixed solvent of acid and diol and stirring the resultant, preparing a second solution by dissolving a zirconium precursor and a titanium precursor in a mixed solvent of acid and diol and stirring the same, mixing the first and second solutions to prepare a PZT stock solution, spin-coating the PZT solution on the substrate to form a coated assembly, and heat-treating the coated assembly.Type: ApplicationFiled: March 12, 2002Publication date: September 12, 2002Inventors: Yong-Kyun Lee, Chang-Jung Kim
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Patent number: 6447924Abstract: A gamma titanium aluminide turbine blade (10) has a titanium oxide layer (20) on its outer surface. A protective coating (22) is applied to the aerofoil (12) and the platform (14) of the turbine blade (10) onto the titanium oxide layer (20). The protective coating (22) comprises a silicate glass having a chromium oxide filler. The protective coating (22) preferably comprise a boron titanate silicate glass having a chromium oxide filler. The oxide layer (20) adheres the protective coating (22) to the titanium aluminide turbine blade (10). The protective coating (22) provides oxidation and sulphidation resistance.Type: GrantFiled: September 24, 1999Date of Patent: September 10, 2002Assignee: Rolls-Royce plcInventor: David F Bettridge
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Patent number: 6447910Abstract: Disclosed is a powder consisting of composite barium titanate particles having surface deposition of a water-insoluble rare earth compound such as yttrium oxide. The powder is used advantageously as a base material for the preparation of a sintered body such as ceramic capacitors of small thickness or compact size as compared with conventional powder blends of barium titanate particles and yttrium oxide particles in respect of greatly improved uniformity in the distribution of the yttrium element. The composite barium titanate particles with surface deposition of yttrium oxide can be prepared by conducting hydrolysis of urea in an aqueous medium containing a water-soluble yttrium salt dissolved therein in the presence of barium titanate particles to deposit basic yttrium carbonate on the particle surface followed by calcination of the particles to convert the basic yttrium carbonate into yttrium oxide.Type: GrantFiled: January 28, 2000Date of Patent: September 10, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Kazuhiro Wataya
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Patent number: 6447658Abstract: A method for making a sensor is disclosed, comprising mixing a metal oxide with a polymer to create a composition. The composition is applied to at least a portion of the sensing element comprising two electrodes with an electrolyte disposed therebetween, and calcined to form a protective coating. A gas sensor created in accordance with the above-referenced method is also disclosed.Type: GrantFiled: December 15, 2000Date of Patent: September 10, 2002Assignee: Delphi Technologies, Inc.Inventors: Ming-Cheng Wu, Paul Kikuchi, Kaplia Wadu-Mesthrige
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Patent number: 6444063Abstract: A Si—SiC material of Si concentration-gradient type is obtained by melt-infiltrating Si into a molded material comprising SiC particles. The Si—SiC material has a porosity of 1.0% or less and in the Si—SiC material the Si concentration decreases gradually from the surface layer towards the innermost layer. A SiC fiber-reinforced Si—SiC composite material of Si concentration-gradient type is obtained by melt-infiltrating Si into a molded material comprising a SiC fiber and SiC particles. The composite material has a porosity of 1.0% or less and in the composite material the Si concentration decreases gradually from the surface layer towards the innermost layer. These materials are significantly improved in corrosion resistance in highly oxidative and corrosive environment, strength, and healability of defects of surface layer and innermost layer.Type: GrantFiled: May 3, 2001Date of Patent: September 3, 2002Assignee: NGK Insulators, Ltd.Inventors: Shigeru Hanzawa, Masatoshi Futakawa, Saburo Shimizu, Kaoru Onuki, Ikuo Ioka, Ynte Johan Stockmann
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Patent number: 6444271Abstract: An article used for thermal protection includes a base structure having at least one surface. The base structure is made of a ceramic oxide material. A silicide coating is formed on the at least one surface of the base structure. The coating comprises a refractory metal and silicon, which together form a silicide. The coating is at least partially diffused into the base structure at the at least one surface.Type: GrantFiled: July 20, 1999Date of Patent: September 3, 2002Assignee: Lockheed Martin CorporationInventors: Jerome P. Wittenauer, Sarah D. Reeves, Kenneth W. Benner, Robert D. Yasukawa
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Publication number: 20020119340Abstract: An environmentally resistant coating comprising silicon, titanium, chromium, and a balance of niobium and molybdenum for turbine components formed from molybdenum silicide-based composites. The turbine component may further include a thermal barrier coating disposed upon an outer surface of the environmentally resistant coating comprising zirconia, stabilized zirconia, zircon, mullite, and combinations thereof. The molybdenum silicide-based composite turbine component coated with the environmentally resistant coating and thermal barrier coating is resistant to oxidation at temperatures in the range from about 2000° F. to about 2600° F. and to pesting at temperatures in the range from about 1000° F. to about 1800° F.Type: ApplicationFiled: February 26, 2001Publication date: August 29, 2002Applicant: General Electric CompanyInventors: Ji-Cheng Zhao, Bernard Patrick Bewlay, Melvin Robert Jackson
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Patent number: 6436469Abstract: The present invention relates to a transparent conductive thin film and a method for the preparation of the same., and more particularly to a method for the preparation of a transparent conductive thin film comprising the steps of a) preparing a sol solution of antimony-tin oxides (ATO) or indium-tin oxides (ITO), b) forming a transparent coating layer on an outer surface of a cathode ray tube using the sol solution, and c) rapidly increasing a temperature of the transparent coating layer to a predetermined temperature of 300 to 1200° C., and rapidly cooling the transparent coating layer either immediately or after maintaining the predetermined temperature for up to 20 seconds, and a transparent conductive thin film prepared by this preparation method, i.e., a transparent conductive thin film which not only has superior conductivity, high hardness, and non-reflectivity but also saves production process time and increases production process effectiveness, and a method for the preparation of the same.Type: GrantFiled: May 19, 2000Date of Patent: August 20, 2002Assignee: Samsung Chemical Paint Co., Ltd.Inventors: Hyun-Gon Lee, Eu-Gene Kim, Jung-Hyun Oh, Sang-Soo Oh, Jun-Beom Kim
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Publication number: 20020110638Abstract: The subject of the invention is a glass-, ceramic- or vitroceramic-based substrate (1) provided on at least part of at least one of its faces with a coating (3) with a photocatalytic property containing at least partially crystalline titanium oxide.Type: ApplicationFiled: February 22, 2002Publication date: August 15, 2002Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Philippe Boire, Xavier Talpaert
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Patent number: 6432473Abstract: The invention described is a method of forming an improved dielectric material by adding lead to an original perovskite material having an original critical grain size to form a lead enhanced perovskite material, then forming a layer of the lead enhanced perovskite material having an average grain size less than the original critical grain size whereby the dielectric constant of the layer is substantially greater than the dielectric constant of the original perovskite material with an average grain size similar to the average grain size of the layer. The critical grain size, as used herein, means the largest grain size such that the dielectric constant starts to rapidly decrease with decreasing grain sizes. Preferably, the lead enhanced perovskite material is further doped with one or more acceptor dopants whereby the resistivity is substantially increased and/or the loss tangent is substantially decreased.Type: GrantFiled: June 1, 1995Date of Patent: August 13, 2002Assignee: Texas Instruments IncorporatedInventors: Scott R. Summerfelt, Howard R. Beratan, Bernard M. Kulwicki
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Patent number: 6432474Abstract: A perovskite type manganese oxide thin film capable of working at temperatures within an electron cooling range and a high sensitivity infrared sensing element using the same thin film are disclosed. The thin film of perovskite type manganese oxide containing an element Ca or Sr and elements La, Mn and O is characterized in that a metal-insulation phase transition point of the thin film lies within a range of temperatures obtainable by a thermoelectric cooling method. The perovskite type manganese oxide is a thin film produced by a sol-gel method and the film is used for manufacturing an infrared sensing element.Type: GrantFiled: June 28, 1999Date of Patent: August 13, 2002Assignee: Sharp Kabushiki KaishaInventors: Kenji Nakanishi, Hideo Nojima, Yasushi Ogimoto, Yoshihiro Takahashi
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Patent number: 6428913Abstract: A functional film formed by coating a substrate with a coating composition having a partial hydrolyzate of a metallic compound containing a hydrolyzable reaction site, the partial hydrolyzate being a sol solution containing (1) a magnesium alkoxide, (2) diethanolamine, (3) water, and (4) an organic solvent. The coating may also be heated to form the functional film.Type: GrantFiled: June 11, 1999Date of Patent: August 6, 2002Assignee: Dai Nippon Printing Co., Ltd.Inventors: Toshio Yoshihara, Nobuko Takahashi, Satoshi Mitamura
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Publication number: 20020102358Abstract: Silicon carbide structures are fabricated by fabricating a nitrided oxide layer on a layer of silicon carbide and annealing the nitrided oxide layer in an environment containing hydrogen. Such a fabrication of the nitrided oxide layer may be provided by forming the oxide layer in at least one of nitric oxide and nitrous oxide and/or annealing an oxide layer in at least one of nitric oxide and nitrous oxide. Alternatively, the nitrided oxide layer may be provided by fabricating an oxide layer and fabricating a nitride layer on the oxide layer so as to provide the nitrided oxide layer on which the nitride layer is fabricated. Furthermore, annealing the oxide layer may be provided as a separate step and/or substantially concurrently with another step such as fabricating the nitride layer or performing a contact anneal. The hydrogen environment may be pure hydrogen, hydrogen combined with other gases and/or result from a hydrogen precursor. Anneal temperatures of 400° C. or greater are preferred.Type: ApplicationFiled: October 26, 2001Publication date: August 1, 2002Inventors: Mrinal Kanti Das, Lori A. Lipkin
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Publication number: 20020102418Abstract: A stable oxidized structure and an improved method of making such a structure, including an improved method of making an interfacial template for growing a crystalline metal oxide structure, are disclosed. The improved method comprises the steps of providing a substrate with a clean surface and depositing a metal on the surface at a high temperature under a vacuum to form a metal-substrate compound layer on the surface with a thickness of less than one monolayer. The compound layer is then oxidized by exposing the compound layer to essentially oxygen at a low partial pressure and low temperature. The method may further comprise the step of annealing the surface while under a vacuum to further stabilize the oxidized film structure. A crystalline metal oxide structure may be subsequently epitaxially grown by using the oxidized film structure as an interfacial template and depositing on the interfacial template at least one layer of a crystalline metal oxide.Type: ApplicationFiled: January 26, 2001Publication date: August 1, 2002Inventors: Shupan Gan, Yong Liang
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Publication number: 20020081396Abstract: A turbomachine component includes a silicon nitride substrate and a multi-layer coating bonded to the substrate. The coating includes an interlayer of porous fibrous silicon nitride having a density of between 85-98%. The coating also includes an outer layer formed of an oxide compound, preferably tantalum oxide, that is applied by Electron Beam-Physical Vapor Deposition. The combination of the silicon nitride interlayer and tantalum oxide outer layer serves to protect the substrate from the adverse affects of oxidation, impact by foreign objects and extreme operating temperatures.Type: ApplicationFiled: August 11, 1999Publication date: June 27, 2002Inventors: CHIEN-WEI LI, DEREK RAYBOULD, MILTON ORTIZ, THOMAS EDWARD STRANGMAN
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Publication number: 20020076501Abstract: A method for preparing a release coating and applying it to crucibles used to contain molten material while it solidifies, such as in the directional solidification of polycrystalline silicon into ingots, by mixing a release coating power with a dry organic binder into a powder and binder dry mixture, mixing a defoamer with a liquid into a liquid and defoamer mixture, mixing the dry mixture with the liquid and defoamer mixture into a wet release coating, sieving to remove lumps and particles, checking the viscosity, wet-spraying onto a crucible at about room temperature, evaporating the liquid from the wet release coating so as to leave a dry release coating on the crucible, and separating the binder from the dry release coating by thermal decomposition.Type: ApplicationFiled: November 15, 2001Publication date: June 20, 2002Inventors: Michael Costantini, Mohan Chandra, Keith Matthei, Alleppey V. Hariharan
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Patent number: 6406758Abstract: A method of applying a protective coating to a touch screen panel. A coating material which cures at an elevated temperature is applied to a touch screen panel on at least one surface thereof. The panel is then heated to a temperature which does not adversely affect the panel by irradiating the panel imparting energy to the coating material to more fully cure the coating material in a shorter time period without damaging the panel.Type: GrantFiled: July 25, 2000Date of Patent: June 18, 2002Assignee: 3M Innovative Properties CompanyInventors: Frank J. Bottari, Paul J. Richter, Chia-Yen Li
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Patent number: 6406750Abstract: A substrate includes a non-conductive portion to be electroless-plated of a substrate, on the surface of which fine metal catalyst particles composed of silver nuclei and palladium nuclei each having an average particle size of 1 nm or less adhere at a high nuclei density of 2000 nuclei/&mgr;m2 or more. The metal catalyst particles are produced by sensitizing the non-conductive portion of the substrate by dipping the substrate in a sensitizing solution containing bivalent tin ions, activating the non-conductive portion of the substrate by dipping the substrate in a first activator containing silver ions, and activating the non-conductive portion of the substrate by dipping the substrate in a second activator containing palladium ions.Type: GrantFiled: May 30, 2000Date of Patent: June 18, 2002Assignees: Osaka Municipal Government, Matsushita Electric Industrial Co., Ltd., C. Uyemura & Co., Ltd.Inventors: Masanobu Izaki, Hiroshi Hatase, Yoshikazu Saijo
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Publication number: 20020071903Abstract: The present invention relates to a transparent conductive thin film and a method for the preparation of the same, and more particularly to a method for the preparation of a transparent conductive thin film comprising the steps of a) preparing a sol solution of antimony-tin oxides (ATO) or indium-tin oxides (ITO), b) forming a transparent coating layer on an outer surface of a cathode ray tube using the sol solution, and c) rapidly increasing a temperature of the transparent coating layer to a predetermined temperature of 300 to 1200° C., and rapidly cooling the transparent coating layer either immediately or after maintaining the predetermined temperature for up to 20 seconds, and a transparent conductive thin film prepared by this preparation method, i.e., a transparent conductive thin film which not only has superior conductivity, high hardness, and non-reflectivity but also saves production process time and increases production process effectiveness, and a method for the preparation of the same.Type: ApplicationFiled: May 19, 2000Publication date: June 13, 2002Inventors: Hyun-Gon Lee, Eu-Gene Kim, Jung-Hyun Oh, Sang-Soo Oh, Jun-Beom Kim
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Publication number: 20020071914Abstract: An improved high temperature chemical treatment of deposited silica films wherein they are subjected to a reactive ambient comprising hydrogen and oxygen atoms. This method results in better elimination of residual undesirable oscillators so as to provide improved optical quality silica waveguides with reduced optical absorption.Type: ApplicationFiled: March 7, 2001Publication date: June 13, 2002Inventors: Luc Ouellet, Manuel Grondin
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Patent number: 6403147Abstract: A coated glass article which may be heat strengthened with reduced variability in sheet resistance is disclosed. A multi-layer coating is formed on a glass substrate including a base layer of a substantially undoped metal oxide applied over the substrate, and an electrically conductive layer of a doped metal oxide applied directly on the base layer. The same source metal is used for the two layers.Type: GrantFiled: September 16, 1999Date of Patent: June 11, 2002Assignee: Libbey-Ownes-Ford Co.Inventors: Richard J. McCurdy, Steve E. Phillips, David W. Perry, Michel J. Soubeyrand
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Patent number: 6403161Abstract: A sol-gel process for producing layers of zirconium oxide is described which comprises the following stages: (i) production of a soluble, zirconium-containing powder by: (a) reaction of a zirconium alcoholate of the general formula Zr (OR)4, in which the residues R are the same or different and represent straight-chain, branched or cyclic alkyl or alkenyl residues with 1 to 10 carbon atoms, which optionally exhibit one or more carbonyl and/or ester and/or carboxyl functions, with one or more polar compounds having complexing, chelating properties, (b) heating the solution, (c) mixing the solution with water, optionally in the presence of a catalyst, (d) concentrating the solution until a powder is obtained, (ii) dissolving the powder forming a sol, (iii) coating a substrate with the sol, and (iv) annealing the coated substrate.Type: GrantFiled: August 25, 2000Date of Patent: June 11, 2002Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.Inventors: Peer Löbmann, Walther Glaubitt, Dieter Sporn
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Patent number: 6403160Abstract: An object of the present invention is to reduce a leakage current of a Pb Zr Ti O base ferroelectric thin film when a voltage is applied. A ferroelectric thin film comprising a composition of PbZrxTi1−xSbyO3 (where 0 <x<1, 0.0001≦y≦0.05) is provided herein as well as a method of producing it. The presence of the Sb serves to reduce the leakage current of the film when a voltage is applied.Type: GrantFiled: September 3, 1999Date of Patent: June 11, 2002Assignees: Oki Electric Industry Co., Ltd., Tokyo Ohka Kogyo, Co., Ltd.Inventors: Ichiro Koiwa, Juro Mita, Takao Kanehara, Akira Hashimoto, Yoshihiro Sawada
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Publication number: 20020068131Abstract: The present invention provides a method of decorating a ceramic article including: providing an ink composition including a metallic soap, the ink composition being a viscous oil or waxy solid at about 25° C.; heating the ink composition to reduce its viscosity to less than about 40 centipoise; depositing micro-droplets of the heated ink composition upon the ceramic article; and firing the ceramic article in an oxidizing atmosphere. In the most preferred embodiment of the invention, the ink composition is substantially solvent-free.Type: ApplicationFiled: December 4, 2000Publication date: June 6, 2002Inventors: Patricia C. Secrest, Robert P. Blonski, Ivan H. Joyce, Juan Carlos Gallart, John J. Welch
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Patent number: 6395337Abstract: A multilayer ceramic substrate contains a ceramic coating which is different in composition than the main body of the multilayer ceramic substrate to control camber of the multilayer ceramic substrate during sintering. The primary component of the ceramic coating is a secondary component of the main body of the multilayer ceramic substrate.Type: GrantFiled: July 30, 1999Date of Patent: May 28, 2002Assignee: International Business Machines CorporationInventors: Raschid J. Bezama, Govindarajan Natarajan, Robert W. Pasco
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Patent number: 6391395Abstract: The present invention is directed to a method of forming a polysilicon layer. A light shield layer having a super-resolution near-field structure is arranged on an amorphous silicon layer. The super-resolution near-field structure includes a first dielectric layer, a second dielectric layer, and an active layer between the first dielectric layer and the second dielectric layer. The light shield layer is irradiated by a laser beam having a first intensity to generate a transmitted laser beam having a second intensity. The second intensity is greater than the first intensity. An annealing process is performed to irradiate the amorphous silicon layer with the transmitted laser beam having a second intensity thereby converting the amorphous silicon layer into a polysilicon layer.Type: GrantFiled: October 23, 2000Date of Patent: May 21, 2002Assignee: Ritek CorporationInventors: Tzu-Feng Tseng, Yi-Ming Chen, Wen-Rei Guo
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Patent number: 6387852Abstract: There is described a method of applying insulative coating on high temperature superconductors and low temperature superconductors from sol-gel solutions prepared from Zr, or Zr with one of Mg, Y, Ce, In and Sn based precursor materials. The solution is prepared with isopropanol as a solvent and acetyl acetone as a catalyst. The conductors are dipped into the solution and thereafter dried at a temperature effective to evaporate the solvent. Thereafter, heat treatment in the presence of oxygen is applied at a temperature sufficient to oxidize the precursors to result in a ceramic insulative coating on the conductor.Type: GrantFiled: October 9, 2001Date of Patent: May 14, 2002Assignee: Florida State UniversityInventors: Erdal Celik, Yusuf Hascicek, Ibrahim Mutlu
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Patent number: 6387453Abstract: An evaporation-induced self-assembly method to prepare a porous, surfactant-templated, thin film by mixing a silica sol, a solvent, a surfactant, and an interstitial compound, evaporating a portion of the solvent to form a liquid, crystalline thin film mesophase material, and then removal of the surfactant template. Coating onto a substrate produces a thin film with the interstitial compound either covalently bonded to the internal surfaces of the ordered or disordered mesostructure framework or physically entrapped within the ordered or disordered mesostructured framework. Particles can be formed by aerosol processing or spray drying rather than coating onto a substrate. The selection of the interstitial compound provides a means for developing thin films for applications including membranes, sensors, low dielectric constant films, photonic materials and optical hosts.Type: GrantFiled: March 2, 2000Date of Patent: May 14, 2002Assignee: Sandia CorporationInventors: C. Jeffrey Brinker, Yunfeng Lu, Hongyou Fan
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Patent number: RE37779Abstract: In an adsorbing body for humidity and odorous gas exchange such as an adsorbing sheet for dehumidification, an adsorbing element for dehumidification or an adsorbing element for total heat energy exchange, a sheet or a honeycomb laminate is impregnated or coated with silica sol containing, as solid content, not more than 30% of the silica sol weight of minute silica particles not larger than 120 Å in diameter which contain many stable silanol radicals on the surface and 0.01-1% of alkali metal ion Na2O. It is then dried to rigidly fix silica gel. Other humidity adsorbing or absorbing agents such as zeolite, organic high-polymer electrolyte, etc. may be mixed in said silica sol. Silica gel with excellent humidity adsorbing ability can be strongly adhered to a sheet or a honeycomb laminate in an extremely simple method.Type: GrantFiled: November 3, 1999Date of Patent: July 2, 2002Assignee: Seibu Giken Co., Ltd.Inventors: Toshimi Kuma, Noriaki Shirahama, Hiroaki Izumi