With Free Metal Patents (Class 252/503)
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Publication number: 20120006583Abstract: The present invention provides an electrostatic discharge protector capable of simply taking ESD measures with a free shape against electronic circuit boards having various designs, having excellent regulation accuracy for an operating voltage and capable of downsizing and cost decreasing, and also provides a discharge gap filling composition capable of using in the production of the electrostatic discharge protector. The discharge gap filling composition comprises metal particles (A) obtainable by metal particles with a hydrolyzed product of a metal alkoxide represented by the following formula (1) and a binder component (C), and the electrostatic discharge protector comprises the composition; R—O—[M(OR)2—O—]n—R??(1) wherein M is a metal atom, O is an oxygen atom, R is an alkyl group, all or a part of R's may be the same as or different each other, and n is an integer of 1 to 40.Type: ApplicationFiled: March 17, 2010Publication date: January 12, 2012Applicant: SHOWA DENKO K.K.Inventors: Yoshimitsu Ishihara, Mina Onishi, Yukihiko Azuma
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Publication number: 20120000523Abstract: Provided are a metal paste composition for forming an electrode, and a silver-carbon composite electrode and a silicon solar cell using the same. The metal paste composition for forming an electrode including glass frit powder, silver powder and an organic binder further includes 20 or less parts by weight, preferably 25 or less parts by weight of carbon-based material powder based on 100 parts by weight of the silver powder. Optionally, the silver powder has an average particle size of 1 ?m or less. An electrode formed using the metal paste composition does not have a substantial deterioration in its electrical characteristics although the silver content is reduced.Type: ApplicationFiled: June 3, 2009Publication date: January 5, 2012Applicant: LG Chem, Ltd.Inventors: Jong-Wuk Park, Sang-Ho Kim, So-Won Kim
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Publication number: 20110309311Abstract: Disclosed are a method for preparing a nanoparticle by using a carbon nanotube, and the nanoparticle prepared by the method. In the disclosed method, by using a carbon nanotube having a physically solid structure and a chemically solid bond, a powder particle made of metal, polymer, ceramic or the like is milled to a nano-size. Also, the nanoparticle prepared by the method has a small size and includes the carbon nanotube. Thus, when the method is applied to a highly oxidative metal, the nanoparticle can be applied to related fields requiring ignitability such as solid fuel, gunpowder, and the like. Also, the carbon nanotube has good mechanical properties and electrical conductivity, and thus can be applied to the related products.Type: ApplicationFiled: February 5, 2010Publication date: December 22, 2011Inventors: Kang Pyo So, Eun Sun Kim, Young Hee Lee
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Publication number: 20110311727Abstract: The present invention relates to a weldable pre-primed coating composition, comprising binder resins, a crosslinker, an anti-corrosive pigment, conductive metal powder, carbon nanotubes, etc. The coating composition can be applied to a metal sheet before processing of the metal sheet to maximize the weldability, adhesion, corrosion resistance and processability of the metal sheet. Also, the coating composition can be applied to a metal sheet by a roll coating process to make it possible to eliminate not only an existing electrodeposition process which is carried out by a non-environmentally-friendly wet dipping process, but also an existing electrostatic spray primer coating process which is carried out by an electrostatic spray coating process in which a solvent is scattered, whereby the metal sheet coated with the coating composition has very excellent formability and weldability after its processing.Type: ApplicationFiled: July 26, 2010Publication date: December 22, 2011Inventors: CHOONG-YEOL KANG, Seung-Man Noh, Joon-Hyun Nam, Je-lk Moon, Hyun-Joong Kim
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Publication number: 20110311873Abstract: The invention relates to a process for producing an electrically conductive, porous, silicon- and/or tin-containing carbon material which is suitable in particular for the production of an anode material, preferably for lithium ion batteries; in a first step of the process, preferably crystalline silicon nanoparticies and/or tin nanoparticies and/or silicon/tin nanoparticles are introduced into a matrix based on at least one organic polymer, being more particular dispersed therein, and subsequently, in a second step of the process, the resultant polymer matrix containing the silicon, tin and/or silicon/tin nanoparticies is carbonized to form carbon.Type: ApplicationFiled: July 14, 2009Publication date: December 22, 2011Inventors: Christof Schulz, Hartmut Wiggers
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Publication number: 20110294012Abstract: It is an objective of the present invention to provide a lithium-ion rechargeable battery anode which can control the volume change of a primary particle of a negative-electrode active material other than a carbon-based material and that can prevent cracks due to stress caused by the volume change from occurring and extending. There is provided an anode for a lithium-ion rechargeable battery including a primary particle of a negative-electrode active material, a conductive material, and a binder, the negative-electrode active material including at least one of silicon and tin, and at least one element selected from elements that do not chemically react with lithium, in which holes are present both in an inner core region in the central region of the primary particle of the negative-electrode active material and in a periphery region that covers the inner core region.Type: ApplicationFiled: May 27, 2011Publication date: December 1, 2011Inventors: Takashi Nakabayashi, Shin Takahashi, Motoki Ohta, Yoshihito Yoshizawa
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Publication number: 20110292570Abstract: The invention relates to a process for coating nanoparticles with graphene, comprising the steps of (a) providing a suspension comprising a suspension medium and nanoparticles with positive surface charge, (b) adding graphene oxide particles to the suspension from step (a), the graphene oxide particles accumulating on the nanoparticles, and (c) converting the graphene oxide particles accumulated on the nanoparticles to graphene, to graphene-coated nanoparticles comprising at least one metal, a semimetal, a metal compound and/or a semimetal compound, and to the use of these graphene-coated nanoparticles in electrochemical cells and supercapacitors, and to supercapacitors and electrochemical cells comprising these nanoparticles.Type: ApplicationFiled: May 13, 2011Publication date: December 1, 2011Applicants: Max-Planck-Gesellschaft zur Foerd. der Wisse. e. V., BASF SEInventors: Sorin IVANOVICI, Shubin Yang, Xinliang Feng, Klaus Müllen
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Publication number: 20110284804Abstract: The thermoelectric material according to the present invention is characterized in that carbon nanotubes are dispersed in thermoelectric matrix powder by mechanically grinding, mixing, and treating by heating a mixed powder formed through a chemical reaction after mixing a first solution in which carbon nanotubes are dispersed and a second solution containing metallic salts. Further, a method for fabricating the thermoelectric material includes fabricating the first solution and the second solution, mixing the first solution and the second solution with each other to form a mixed solution, forming and growing a mixed powder in which carbon nanotubes and metals are mixed by a chemical reaction of the mixed solution, mechanically grinding and mixing the mixed powder, and heating the ground-and-mixed mixed powder to form the thermoelectric material.Type: ApplicationFiled: September 16, 2010Publication date: November 24, 2011Applicant: Korea Institute of Machinery & MaterialsInventors: Kyung Tae Kim, Gook Hyun Ha, Dong Won Kim
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Publication number: 20110287258Abstract: A method for dispersing nanotubes, comprising contacting the nanotubes with an electronic liquid comprising a metal and an amine solvent, a solution of dispersed nanotuhes, comprising individual nanotuhes at a concentration of greater than about 0.01 mgml?1 and a solvent and a nanotube crystal comprising a close packed array of nanotubes, wherein the crystal has a thickness of 100 nm or more are described.Type: ApplicationFiled: July 3, 2009Publication date: November 24, 2011Applicants: IMPERIAL INNOVATIONS LTD., UCL BUSINESS PLCInventors: Christopher Howard, Skipper Neal, Milo Shaffer, Sian Fogden
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Publication number: 20110284805Abstract: A method for producing nanospacer-graphene composite materials (i.e., mechanically-exfolitated graphene), wherein the graphene sheets are interspersed with nanospacers, thereby maintaining the 2D characteristics of the graphene sheets. The nanospacer-graphene composite material is highly porous, has a high surface area and is highly electrically conductive and may be optically transparent.Type: ApplicationFiled: June 1, 2011Publication date: November 24, 2011Applicant: THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILLInventors: Edward T. SAMULSKI, Yongchao SI
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Publication number: 20110278506Abstract: An object of the present invention is to provide a method of producing carbon particles for an electrode, the carbon particles being highly suitable for use as an electrode material, and being able to achieve a high charge/discharge efficiency and durability when used as a negative-electrode material in lithium-ion secondary batteries. The present invention provides a method of producing carbon particles for an electrode, each containing particles of a metal capable of forming an alloy with lithium, being formed by an aggregation of numerous fine particles composed of carbon, and having a hollow open-cell structure in which cells among the fine particles form a plurality of interconnected pores.Type: ApplicationFiled: December 25, 2009Publication date: November 17, 2011Applicant: Sekisui Chemical Co., Ltd.Inventor: Takuya Toyokawa
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Publication number: 20110281180Abstract: Embodiments of the present invention are directed to negative active materials for lithium rechargeable batteries and to lithium rechargeable batteries including the negative active materials. The negative active material includes a crystalline carbon material having pores, and amorphous conductive nanoparticles in the pores, on the surface of the crystalline carbon, or both in the pores and on the surface of the crystalline carbon. The conductive nanoparticles have a FWHM of about 0.35 degrees (°) or greater at the crystal plane that produces the highest peak as measured by X-ray diffraction.Type: ApplicationFiled: May 3, 2011Publication date: November 17, 2011Inventors: Bong-Chull Kim, Cheol-Hee Hwang, Dong-Yung Kim, Se-Ho Park, Hyun-Jun Choi
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Publication number: 20110260115Abstract: A conductive paste containing silver nanoparticles and a conductive circuit board provided therewith are provided. The conductive paste containing silver nanoparticles includes 15 to 50 weight % of silver nanoparticles based on a total weight of the conductive paste, the silver nanoparticles having an average particle size of 1 to 100 nm; 0.1 to 2.5 weight % of carbon nanotubes based on the total weight of the conductive paste, the carbon nanotubes having an average diameter of 2 to 40 nm; 1 to 15 weight % of a binder based on the total weight of the conductive paste; and a solvent.Type: ApplicationFiled: June 7, 2011Publication date: October 27, 2011Applicant: LS CABLE & SYSTEM, LTDInventors: Yoon-Jin Kim, Chang-Mo Ko, Ho-Souk Cho
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Patent number: 8035290Abstract: A fluorescent display device includes an aluminum wiring layer formed on an insulating substrate; an insulating layer formed on the aluminum wiring layer, the insulating layer being provided with a through-hole disposed on the aluminum wiring layer; a conductive layer filled in the through-hole. The fluorescent display device further includes an anode conductor formed on the insulating layer to cover the conductive layer and a phosphor layer formed on the anode conductor. The conductive layer is formed of solid mixture containing aluminum and graphite.Type: GrantFiled: September 12, 2008Date of Patent: October 11, 2011Assignee: Futaba CorporationInventors: Masahiro Kato, Toshiyuki Misonou, Masashi Miyagawa
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Publication number: 20110240083Abstract: A thermoelectric material including a compound represented by Formula 1 below: (R1-aR?a)(T1-bT?b)3±y??Formula 1 wherein R and R? are different from each other, and each includes at least one element selected from a rare-earth element and a transition metal, T and T? are different from each other, and each includes at least one element selected from sulfur (S), selenium (Se), tellurium (Te), phosphorus (P), arsenic (As), antimony (Sb), bismuth (Bi), carbon (C), silicon (Si), germanium (Ge), tin (Sn), boron (B), aluminum (Al), gallium (Ga), and indium (In), 0?a?1, 0?b?1, and 0?y<1.Type: ApplicationFiled: March 31, 2011Publication date: October 6, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong-soo RHYEE, Sang-mock LEE
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Publication number: 20110236710Abstract: The present invention relates to a coating composition having excellent electro-conductivity and corrosion resistance, a method of preparing the coating composition, and an article coated with the coating composition. More particularly, the present invention relates to a coating composition having excellent surface electro-conductivity and corrosion resistance, comprising: one or more base resins selected from the group consisting of a polyester resin, an epoxy resin, a polyurethane resin, an acrylic resin, a polyolefin resin, a fluorine resin, a polycarbonate resin and a phenol resin; a melamine-based curing agent; one or more selected from among carbon black and carbon nanotubes; metal powder; and organic clay, a method of preparing the coating composition, and an article coated with the coating composition.Type: ApplicationFiled: December 23, 2008Publication date: September 29, 2011Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventors: Young Chul Lee, Myeong Jun Kim, Mee Young Park
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Publication number: 20110234363Abstract: One or more embodiments provide for a device that utilizes voltage switchable dielectric material having semi-conductive or conductive materials that have a relatively high aspect ratio for purpose of enhancing mechanical and electrical characteristics of the VSD material on the device.Type: ApplicationFiled: June 10, 2011Publication date: September 29, 2011Inventors: Lex Kosowsky, Robert Fleming
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Publication number: 20110209816Abstract: A method for removing a carbonization catalyst from a graphene sheet, the method includes contacting the carbonization catalyst with a salt solution, which is capable of oxidizing the carbonization catalyst.Type: ApplicationFiled: May 16, 2011Publication date: September 1, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jaeyoung CHOI, Keun Soo KIM, Byung Hee HONG
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Publication number: 20110209894Abstract: A composite material formed of electrically conductive metalized carbon fibers, a thin metal coating or a composite material formed of a conductive polymer and metal nanoparticles.Type: ApplicationFiled: July 26, 2010Publication date: September 1, 2011Applicants: and Space AdministrationInventors: Martha K. Williams, Luke B. Roberson, Lanetra C. Tate, Trent M. Smith, Tracy L. Gibson, Scott T. Jolley
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Publication number: 20110204297Abstract: An electroconductive fiber, a method of manufacturing an electroconductive fiber, and a fiber complex including an electroconductive fiber are provided, the electroconductive fiber includes an electroconductive polymer, an elastic polymer that forms a structure with the electroconductive polymer, and a carboneous material on at least one of the electroconductive polymer and the elastic polymer.Type: ApplicationFiled: July 29, 2010Publication date: August 25, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Jong-jin Park, Jae-hyun Hur, Jong-min Kim, Seung-nam Cha, Un-jeong Kim, Hyung-bin Son
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Publication number: 20110198542Abstract: An electrically conductive carbon nanotube-metal composite ink may include a carbon nanotube-metal composite in which metal nanoparticles are bound to a surface of a carbon nanotube by chemical self-assembly. The electrically conductive carbon nanotube-metal composite ink may have higher electrical conductivity than a commonly used metal nanoparticles-based conductive ink, and may also be used in deformable electronic devices that are flexible and stretchable, as well as commonly used electronic devices, due to the bending and stretching properties of the carbon nanotube itself.Type: ApplicationFiled: October 28, 2010Publication date: August 18, 2011Inventors: Jae-woo Chung, Seung-hyun Baik, Joong-hyuk Kim, Ru-Jun Ma, Young-seok Oh, Dae-woo Suh
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Publication number: 20110183202Abstract: A negative electrode active material including nanometal particles and super-conductive nanoparticles and a lithium battery including the same.Type: ApplicationFiled: September 3, 2010Publication date: July 28, 2011Inventors: So-Ra Lee, Jae-Myung Kim, Kyu-Nam Joo, Sean Do, Jong-Hee Lee, Young-Su Kim, Deok-Hyun Kim, Gu-Hyun Chung, Beom-Kwon Kim, Yong-Mi Yu
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Publication number: 20110171371Abstract: Carbon nanotube-based compositions and methods of making an electrode for a Li ion battery are disclosed. It is an objective of the instant invention to disclose a composition for preparing an electrode of a lithium ion battery with incorporation of carbon nanotubes with more active material by having less conductive filler loading and less binder loading such that battery performance is enhanced.Type: ApplicationFiled: January 13, 2011Publication date: July 14, 2011Applicant: CNano Technology LimitedInventors: Qi Li, Caihong Xing, Zhaojie Wei, Jun Ma
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Publication number: 20110168955Abstract: A method of growing carbon nanotubes uses a synthesized mesoporous silica template with approximately cylindrical pores being formed therein. The surfaces of the pores are coated with a carbon nanotube precursor, and the template with the surfaces of the pores so-coated is then heated until the carbon nanotube precursor in each pore is converted to a carbon nanotube.Type: ApplicationFiled: January 30, 2007Publication date: July 14, 2011Applicant: USA as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Tarek Abdel-Fattah, Emilie J. Siochi
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Publication number: 20110163274Abstract: An electrode composite and to its manufacturing process. The composite includes an active element, i.e. one exhibiting electrochemical activity, a conductive additive and a binder. The conductive additive is a mixture of conductive additives containing at least carbon nanofibres (CNFs) and at least carbon nanotubes (CNTs). Also, the negative electrodes for electrochemical devices of the lithium battery type including said composite and to the secondary (Li-ion) batteries provided with such a negative electrode.Type: ApplicationFiled: August 20, 2009Publication date: July 7, 2011Applicant: Arkema FranceInventors: Dominique Plee, Bernard Lestriez, Dominique Guyomard, Sabrina Desaever
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Publication number: 20110155812Abstract: Disclosed is a conductive composition which can be used to form an aqueous conductive ink with increased conductivity. A film of the dry ink having a thickness of 5 microns or less has a surface roughness of less than 1.5 times the surface roughness of a cellulosic-based substrate which it coats. The aqueous conductive composition contains conductive particles, preferably silver, an anionic wetting agent and a styrene-acrylic copolymer. The composition is highly conductive and requires reduced drying energy. In addition, it may be applied to low cost substrates by high speed printing processes.Type: ApplicationFiled: September 7, 2007Publication date: June 30, 2011Applicant: Sun Chemical Corp.Inventors: Jason Hayden Rouse, Dave Klein
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Publication number: 20110159375Abstract: The present application is directed to carbon materials comprising an electrochemical modifier. The carbon materials find utility in any number of electrical devices, for example, in lead acid batteries. Methods for making the disclosed carbon materials are also disclosed.Type: ApplicationFiled: December 10, 2010Publication date: June 30, 2011Applicant: EnerG2, Inc.Inventors: Aaron M. Feaver, Henry R. Costantino, Matthew J. Maroon, Katharine Geramita, Alan Tzu-Yang Chang
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Publication number: 20110160037Abstract: The present invention provides a carbon nanofiber-metal composite, which is formed by continuously coating a carbon nanofiber including a plurality of laminated truncated, conic graphenes with a metal. The carbon nanofiber-metal composite according to the present invention can have improved magnetic permeability and conductivity, and thus can be useful as an electromagnetic shielding material.Type: ApplicationFiled: December 15, 2010Publication date: June 30, 2011Applicant: CHEIL INDUSTRIES INC.Inventors: Kyoung Tae Youm, Young Sil Lee
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Publication number: 20110155964Abstract: The present teachings provide methods for providing populations of single-walled carbon nanotubes that are substantially monodisperse in terms of diameter, electronic type, and/or chirality. Also provided are single-walled carbon nanotube populations provided thereby and articles of manufacture including such populations.Type: ApplicationFiled: December 3, 2010Publication date: June 30, 2011Inventors: Michael S. Arnold, Mark C. Hersam, Samuel I. Stupp
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Patent number: 7968011Abstract: A conductive ink comprising 10 to 75 wt % of at least one solvent comprising ?20 wt % water; 0 to 50 wt % of at least one radiation curable material having a Mn in the range of from 50 to 10,000 g/mol; 5 to 70 wt % of at least one polyurethane having a Mw in the range of from 4,000 to 70,000 g/mol, 0 to 5 wt % of isocyanate-reactive component(s) bearing ionic or potentially ionic water-dispersing groups and a free isocyanate group content <0.5 wt % and 20 to 85 wt % of a conductive material.Type: GrantFiled: March 6, 2007Date of Patent: June 28, 2011Assignee: DSM IP Assets B.V.Inventors: Gerardus Cornelis Overbeek, Michael Arnoldus Jacobus Schellekens, Alfred Jean Paul Bückmann
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Publication number: 20110147670Abstract: Pre-impregnated composite material (prepreg) is provided that can be cured to form composite parts that have high levels of damage tolerance. The matrix resin includes a thermoplastic particle component that is a blend of particles that have a melting point above the curing temperature and particles that have a melting point at or below the curing temperature.Type: ApplicationFiled: March 7, 2011Publication date: June 23, 2011Applicants: Hexcel Corporation, Hexcel Composites Ltd.Inventors: David Tilbrook, Dana Blair, Maureen Boyle, Paul Mackenzie
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Publication number: 20110147669Abstract: One provides nanocrystalline diamond material that comprises a plurality of substantially ordered diamond crystallites that are sized no larger than about 10 nanometers. One then disposes a non-diamond component within the nanocrystalline diamond material. By one approach this non-diamond component comprises an electrical conductor that is formed at the grain boundaries that separate the diamond crystallites from one another. The resultant nanowire is then able to exhibit a desired increase with respect to its ability to conduct electricity while also preserving the thermal conductivity behavior of the nanocrystalline diamond material.Type: ApplicationFiled: December 13, 2010Publication date: June 23, 2011Applicant: DIMEROND TECHNOLOGIES, INC.Inventor: Dieter M. Gruen
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Publication number: 20110134585Abstract: A mesoporous carbon material, a fabrication method thereof and a supercapacitor containing the mesoporous carbon material are provided. The mesoporous carbon material includes a plurality of carbon nanotubes (CNTs) and/or metal particles and/or metal oxide particles, and a carbon matrix. The mesoporous carbon material has a plurality of mesopores formed by the carbon matrix and the carbon nanotubes and/or the metal particles and/or the metal oxide particles. The plurality of carbon nanotubes, and/or the metal particles and/or the metal oxide particles are formed substantially adjacent to the plurality of mesopores.Type: ApplicationFiled: December 7, 2010Publication date: June 9, 2011Inventors: Bo-Jiun SHEN, Duo-Fong Huang, Chi-Chang Chen, Hui-Ling Wen, Rong-Chang Llang
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Publication number: 20110133132Abstract: The present invention provides a chemically functionalized submicron graphitic fibril having a diameter or thickness less than 1 ?m, wherein the fibril is free of continuous thermal carbon overcoat, free of continuous hollow core, and free of catalyst. The fibril is obtained by splitting a micron-scaled carbon fiber or graphite fiber along the fiber axis direction. These functionalized graphitic fibrils exhibit exceptionally high electrical conductivity, high thermal conductivity, high elastic modulus, high strength and good interfacial bonding with a matrix resin in a composite. The present invention also provides several products that contain submicron graphitic fibrils: (a) paper, thin-film, mat, and web products; (b) rubber or tire products; (c) energy conversion or storage devices, such as fuel cells, lithium-ion batteries, and supercapacitors; (d) adhesives, inks, coatings, paints, lubricants, and grease products; (e) heavy metal ion scavenger; (f) absorbent (e.g.Type: ApplicationFiled: July 16, 2010Publication date: June 9, 2011Inventors: Aruna Zhamu, Bor Z. Jang
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Publication number: 20110114895Abstract: In a fibre composite component for an aircraft or spacecraft which has electrically conductive fibres at least in portions, the fibres are coupled with an electrical energy source for charging with current to heat up the fibres and/or for measuring the electrical resistance of the fibres.Type: ApplicationFiled: January 20, 2009Publication date: May 19, 2011Applicant: AIRBUS OPERATIONS GMBHInventor: Hauke Lengsfeld
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Publication number: 20110114894Abstract: A composite structure and a method of manufacturing the composite structure. The composite structure includes a graphene sheet; and a nanostructure oriented through the graphene sheet and having a substantially one-dimensional shape.Type: ApplicationFiled: April 23, 2010Publication date: May 19, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung-lyong CHOI, Eun-kyung LEE, Dong-mok WHANG, Byung-sung KIM
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Publication number: 20110108978Abstract: A metal matrix composite is disclosed that includes graphene nanoplatelets dispersed in a metal matrix. The composite provides for improved thermal conductivity. The composite may be formed into heat spreaders or other thermal management devices to provide improved cooling to electronic and electrical equipment and semiconductor devices.Type: ApplicationFiled: November 6, 2009Publication date: May 12, 2011Applicant: THE BOEING COMPANYInventors: Namsoo Paul Kim, James Ping Huang
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Patent number: 7939167Abstract: The present invention provides a resin composition comprising a thermoplastic resin (A), an inorganic compound having a volume resistance of less than about 10?3 ?·m and relative permeability of more than about 5,000 (B) and fiber filler (C). The resin composition of the present invention can have high impact strength and high electrical conductivity, and high electromagnetic interference (EMI) and radio frequency interference (RFI) shielding properties. The resin composition of the present invention can accordingly have multiple functions and can be used for electrical/electronic devices.Type: GrantFiled: December 29, 2009Date of Patent: May 10, 2011Assignee: Cheil Industries Inc.Inventors: Sung Jun Kim, Young Sik Ryu
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Publication number: 20110095237Abstract: A carbon nanotube composite includes a free-standing carbon nanotube structure and an amount of reinforcements. The free-standing carbon nanotube structure includes an amount of carbon nanotubes. The reinforcements are located on the carbon nanotubes and combining the carbon nanotubes together.Type: ApplicationFiled: June 24, 2010Publication date: April 28, 2011Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: KAI LIU, RUI-FENG ZHOU, YING-HUI SUN, KAI-LI JIANG, SHOU-SHAN FAN
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Publication number: 20110089365Abstract: The invention relates to a carbon nanofiber containing at least iron (Fe) and vanadium (V), wherein the iron (Fe) is present in an amount of 6 mass % or less and the vanadium (V) is present in an amount of 3 mass % or less as a metal element other than carbon, wherein a graphite plane is inclined to the fiber axis.Type: ApplicationFiled: December 20, 2010Publication date: April 21, 2011Applicant: Showa Denko K.K.Inventors: Gaku ORIJI, Eiji KAMBARA
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Publication number: 20110058308Abstract: This invention provides a metal encapsulated dendritic carbon nanostructure comprising a dendritic carbon nanostructure comprising a branched carbon-containing rod-shaped or annular material and a metallic body capsulated in the carbon nanostructure. There is also provided a dendritic carbon nanostructure comprising a branched carbon-containing rod-shaped or annular material.Type: ApplicationFiled: December 9, 2008Publication date: March 10, 2011Inventors: Nobuyuki Nishi, Shigenori Numao, Kent Judai, Junichi Nishijo, Kazuhiko Mizuuchi
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Publication number: 20110049647Abstract: An embodiment relates a method comprising creating a reversible change in an electrical property by adsorption of a gas by a composition, wherein the composition comprises a noble metal-containing nanoparticle and a single walled carbon nanotube. Another embodiment relates to a method comprising forming a composition comprising a noble metal-containing nanoparticle and a single walled carbon nanotube and forming a device containing the said composition. Yet another method relates to a device comprising a composition comprising a noble metal-containing nanoparticle and a single walled carbon nanotube on a silicon wafer, wherein the composition exhibits a reversible change in an electrical property by adsorption of a gas by the composition.Type: ApplicationFiled: December 15, 2009Publication date: March 3, 2011Applicant: Indian Institute of Technology MadrasInventors: PRADEEP THALAPPIL, Chandramouli Subramaniam
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Patent number: 7897131Abstract: The present invention relates to a method for manufacturing a transition metal-carbon nanotube hybrid material using nitrogen as a medium. The present invention is characterized in that nitrogen-added carbon nanotube is grown in the presence of metal catalyst particles by reacting an hydrocarbon gas with a nitrogen gas by a chemical vapor deposition (CVD) and a transition metal-carbon nanotube hybrid material where a transition metal is uniformly attached to the entire carbon nanotube structure in which nitrogen with a great chemical reactivity is added as heterogeneous elements is chemically manufactured. Therefore, the present invention does not use an acid treatment required to attach transition-metal atoms to the carbon-nanotube, a surface treating process using a surfactant and the like and an inhibitor for preventing the coagulation of the transition metal so that a simplification of the process is obtained and the method is an environment-friendly method.Type: GrantFiled: July 20, 2007Date of Patent: March 1, 2011Assignee: Korea Advanced Institute of Science and TechnologyInventors: Jeung-Ku Kang, Seong-Ho Yang, Hyun-Seok Kim, Kyu-Sung Han, Se-Yun Kim, Jung-Woo Lee, Weon-Ho Shin, Jun-Hyeon Bae
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Publication number: 20110042712Abstract: The present disclosure provides a new type of gapless semiconductor material having electronic properties that can be characterized by an electronic band structure which comprises valence and conduction band portions VB1 and CB1, respectively, for a first electron spin polarisation, and valence and conducting band portions VB2 and CB2, respectively, for a second electron spin polarisation. The valence band portion VB1 has a first energy level and one of CB1 and CB2 have a second energy level that are positioned so that gapless electronic transitions are possible between VB1 and the one of CB1 and CB2, and wherein the gapless semiconductor material is arranged so that an energy bandgap is defined between VB2 and the other one of CB1 and CB2.Type: ApplicationFiled: March 12, 2009Publication date: February 24, 2011Inventor: Xiaolin Wang
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Patent number: 7883643Abstract: The invention provides a process for preparing an overvoltage protection material comprising: (i) preparing a mixture comprising a polymer binder precursor and a conductive material; and (ii) heating the mixture to cause reaction of the polymer binder precursor and generate a polymer matrix having conductive material dispersed therein, wherein the polymer binder precursor is chosen such that substantially no solvent is generated during the reaction.Type: GrantFiled: October 21, 2002Date of Patent: February 8, 2011Inventors: Chi-Ming Chan, Kai-Mo Ng, Catherine Yuen-Chien Wong, Ying Kit Cheung
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Patent number: 7883645Abstract: The present invention relates to a method for increasing the conversion of group III metal to group III nitride in a fused metal containing group III elements, with the introduction of nitrogen into the fused metal containing group III, at temperatures?1100° C. and at pressures of below 1×108 Pa, wherein a solvent adjunct is added to the fused metal containing group III elements, which is at least one element of the following elements C, Si, Ge, Fe, and/or at least one element of the rare earths, or an alloy or a compound of these elements, in particular their nitrides.Type: GrantFiled: October 4, 2005Date of Patent: February 8, 2011Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Jochen Friedrich, Georg Muller, Elke Meissner, Bernhard Birkmann, Stephan Hussy
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Publication number: 20110024695Abstract: A hydrogen-oxygen generating electrode plate and a method for manufacturing the same. The hydrogen-oxygen generating electrode plate includes TiO2, CO2O3, Cr2O3, NiO, carbon nano tube, Ni or Cr and ceramic catalyst, and the TiO2, CO2O3, Cr2O3, NiO, carbon nano tube, Ni or Cr and ceramic catalyst are pressed in the type of powder and are solidified and plasticized in a vacuum plasticizing furnace. The method for generating the hydrogen-oxygen generating electrode plate includes a step S1 in which powder types of TiO2, CO2O3, Cr2O3, NiO, carbon nano tube, Ni or Cr and ceramic catalyst are uniformly mixed for thereby forming a mixed compound with a high distribution degree; a step S2 in which the mixed compound is inputted into a mold and is pressed for thereby forming a solid type pressing material; and a step S3 in which the pressing material is plasticized in a vacuum plasticizing furnace.Type: ApplicationFiled: February 8, 2010Publication date: February 3, 2011Inventor: Boo-Sung Hwang
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Patent number: 7879261Abstract: The invention relates to (1) carbon nanofiber containing iron (Fe) of 6 mass % or less and vanadium (V) of 3 mass % or less as a metal impurity other than carbon, which does not substantially contain metal elements other than Fe and V, (2) a method for producing carbon nanofiber characterized in contacting a catalyst in which Fe and V are supported on a carbon support and a carbon-containing compound at a high temperature, (3) a resin composite material in which the carbon nanofiber is blended and (4) use thereof. According to the invention, an inexpensive carbon fiber filler material can be obtained which has a low content of metal impurities and enables to exhibit electric conductivity when added to resin in a small amount.Type: GrantFiled: May 30, 2008Date of Patent: February 1, 2011Assignee: Showa Denko K.K.Inventors: Gaku Oriji, Eiji Kambara
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Publication number: 20110014492Abstract: The process for the application of a metal layer on a substrate by deposition of a metal from a metal salt solution comprises the presence of exfoliated graphite in the substrate surface.Type: ApplicationFiled: March 13, 2009Publication date: January 20, 2011Inventors: Ketan Joshi, Stephan Hermes, Norbert Wagner, Christoffer Kieburg
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Publication number: 20110003174Abstract: There are provided a carbon wire using CNT or a similar carbon filament having a sufficiently low electrical resistance value, and a wire assembly employing that carbon wire. A carbon wire includes an assembly portion and a graphite layer. The assembly portion is configured of a plurality of carbon filaments implemented as carbon nanotubes in contact with one another. The graphite layer is provided at an outer circumference of the assembly portion.Type: ApplicationFiled: May 8, 2009Publication date: January 6, 2011Applicant: Sumitomo Electric Industries, Ltd.Inventors: Takeshi Hikata, Jun-ichi Fujita