Modified With Atoms Or Molecules Bonded To The Surface Patents (Class 977/748)
  • Publication number: 20110069274
    Abstract: A vision assistance device includes a lens based on a transparent material, a conductive transparent thin film contacting the lens and containing carbon nanotubes, electrodes electrically connected to the conductive transparent thin film, and a portable power supply electrically connected to the electrodes. The vision assistance device prevents fogging and retains heat.
    Type: Application
    Filed: May 21, 2009
    Publication date: March 24, 2011
    Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Chang-Soo Han, Jin-Won Song, Joon-Dong Kim
  • Publication number: 20110031443
    Abstract: A multicomponent carbon nanotube-polymer complex, a composition for forming the same, and a preparation method thereof are disclosed herein. A multicomponent carbon nanotube-polymer complex may include carbon nanotubes surface-modified with double bond-containing functional groups or carbon nanotubes surface-modified with oxirane groups and/or carbon nanotubes surface-modified with anhydride groups; a polymer binder; and/or acid-treated carbon nanotubes and/or pristine carbon nanotubes. The multicomponent carbon nanotube-polymer complex may exhibit remarkably improved mechanical and hardening properties, compared with conventional complexes using only carbon nanotubes and a polymer binder, and thus may be advantageously used as an electromagnetic wave shielding material and a conductive material.
    Type: Application
    Filed: October 14, 2010
    Publication date: February 10, 2011
    Inventors: Jong Jin Park, Byeongyeol Kim, Dong Woo Shin, Young Ju Kim
  • Patent number: 7883650
    Abstract: A composite bipolar plate for a polymer electrolyte membrane fuel cell (PEMFC) is prepared as follows: a) compounding vinyl ester and graphite powder to form bulk molding compound (BMC) material, the graphite powder content ranging from 60 wt % to 95 wt % based on the total weight of the graphite powder and vinyl ester, wherein carbon nanotubes together with a polyether amine dispersant or modified carbon nanotubes 0.05-10 wt %, based on the weight of the vinyl ester resin, are added during the compounding; b) molding the BMC material from step a) to form a bipolar plates having a desired shaped at 80-200° C. and 500-4000 psi.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: February 8, 2011
    Assignee: National Tsing Hua University
    Inventors: Chen-Chi Martin Ma, Chih-Hung Hung, Shu-Hang Liao, Chuan-Yu Yen, Jeng-Chih Weng, Yu-Feng Lin
  • Publication number: 20110027162
    Abstract: Systems and methods for the formation of carbon-based nanostructures are generally described. In some embodiments, the nanostructures may be formed on a nanopositor. The nanopositor can comprise, in some embodiments, at least one of metal atoms in a non-zero oxidation state and metalloid atoms in a non-zero oxidation state. For example, the nanopositor may comprise a metal oxide, a metalloid oxide, a metal chalcogenide, a metalloid chalcogenide, and the like. The carbon-based nanostructures may be grown by exposing the nanopositor, in the presence or absence of a growth substrate, to a set of conditions selected to cause formation of carbon-based nanostructures on the nanopositor. In some embodiments, metal or metalloid atoms in a non-zero oxidation state are not reduced to a zero oxidation state during the formation of the carbon-based nanostructures. In some cases, metal or metalloid atoms in a non-zero oxidation state do not form a carbide during the formation of the carbon-based nanostructures.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 3, 2011
    Applicant: Massachusetts Institute of Technology
    Inventors: Stephen A. Steiner, III, Brian L. Wardle
  • Publication number: 20110003149
    Abstract: The invention provides fluorinated multi-layered carbon nanomaterials and methods for their production. In one aspect of the invention, the carbon nanomaterials are partially fluorinated and retain some unreacted carbon. The invention also provides electrodes and electrochemical devices incorporating the fluorinated carbon nanomaterials of the invention.
    Type: Application
    Filed: September 13, 2010
    Publication date: January 6, 2011
    Inventors: Rachid YAZAMI, André Hamwi
  • Patent number: 7858648
    Abstract: The present invention relates to the use of a carbon nanotube comprising positive and/or negative charges, the charges being carried by at least one charge-carrying group, the charge carrying group being covalently bound to the surface of the carbon nanotube, for the manufacture of a complex between the carbon nanotube and at least one charged molecule, the bond between the carbon nanotube and the charged molecule being essentially electrostatic, and the charged molecule comprising at least one negative charge if the carbon nanotube comprises positive charges and/or at least one positive charge if the carbon nanotube comprises negative charges.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: December 28, 2010
    Assignees: Centre National de la Recherche Scientifique (C.N.R.S.), University of London, The School of Pharmacy, Universita degli Studi di Trieste
    Inventors: Alberto Bianco, Davide Pantarotto, Kostas Kostarelos, Maurizio Prato
  • Patent number: 7854914
    Abstract: The present invention relates to a method of solubilizing carbon nanotubes, to carbon nanotubes produced thereby and to uses of said carbon nanotubes.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: December 21, 2010
    Assignee: Sony Deutschland GmbH
    Inventors: William E. Ford, Jurina Wessels, Akio Yasuda
  • Publication number: 20100316554
    Abstract: The combination of at least one substantially unfunctionalised carbon surface, such as a fullerene, graphite or amorphous carbon, graphene or pre-aligned carbon nanotubes and at least semi-conducting nanoparticle, for example CdSe, CdTe, CdS, InP and/or ZnO or a metallic alloy nanoparticle is described wherein the at least one nanoparticle is directly attached to the substantially unfunctionalised carbon surface. A method for the manufacture of the nanoparticles is also described. This method comprises: —dissolving a cation source in a first organic solvent to produce a cation-containing medium; —adding a plurality of substantially unfunctionalised carbon surfaces to the cation-containing medium to form a cation-carbon mixture; —adding an anion-containing medium to the mixture of the cation-containing medium and carbon surfaces to form a cation-carbon-anion mixture, In the case of alloy nanoparticles, another cation medium is added instead.
    Type: Application
    Filed: March 28, 2008
    Publication date: December 16, 2010
    Applicant: CENTRUM FUR ANGEWANDTE NANOTECHNOLOGIE (CAN) GMBH
    Inventors: Beatriz Hernandez, Horst Weller, Christian Klinke, Mona Nagel, Andreas Kornowski
  • Patent number: 7851338
    Abstract: Graded core/shell semiconductor nanorods and shaped nanorods are disclosed comprising Group II-VI, Group III-V and Group IV semiconductors and methods of making the same. Also disclosed are nanorod barcodes using core/shell nanorods where the core is a semiconductor or metal material, and with or without a shell. Methods of labeling analytes using the nanorod barcodes are also disclosed.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: December 14, 2010
    Assignee: The Regents of the University of California
    Inventors: A. Paul Alivisatos, Erik C. Scher, Liberato Manna
  • Patent number: 7850874
    Abstract: Methods and devices are provided relating to the homogeneous deposition of a composite film of carbon nanotubes by electrophoresis. The methods comprise linking carbon nanotubes to matrix particles prior to electrophoretic deposition. The methods improve the adhesion of the composite film to the substrate and reduce the surface roughness. Carbon nanotube films and electron field emission cathodes fabricated by this process demonstrate enhanced electron field emission characteristics.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: December 14, 2010
    Assignee: Xintek, Inc.
    Inventors: Mei Lu, Jie Liu, Huaizhi Geng, Bo Gao
  • Publication number: 20100285304
    Abstract: Exemplary embodiments provide a coating composition for an outermost layer of a fuser member that can include a plurality of fluorinated diamond-containing particles dispersed in an elastomeric matrix.
    Type: Application
    Filed: May 6, 2009
    Publication date: November 11, 2010
    Applicant: XEROX CORPORATION
    Inventor: Jin WU
  • Publication number: 20100279001
    Abstract: Disclosed are a carbon nano-tube (CNT) thin film treated with chemical having an electron withdrawing functional group and a manufacturing method thereof. Specifically, the CNT thin film comprises a CNT composition to be applied on a plastic substrate. The CNT composition comprises a CNT; and chemical connected to the CNT and having an electron withdrawing functional group. In addition, the method for manufacturing a CNT thin film comprises steps of preparing a CNT; treating the CNT with chemical having an electron withdrawing functional group; mixing the CNT treated with the chemical with a dispersing agent or dispersing solvent to prepare a CNT dispersed solution; and forming a CNT thin film with the CNT dispersed solution. According to the CNT thin film and the manufacturing method thereof, a resistance of an electrode is decreased to improve the electric conductivity of the electrode.
    Type: Application
    Filed: February 14, 2008
    Publication date: November 4, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeon Jin Shin, Seonmi Yoon, Jaeyoung Choi, Young Hee Lee, Seong Jae Choi, Soo Min Kim
  • Patent number: 7818993
    Abstract: Single-walled carbon nanotubes (SWNTs) are decorated with metal nanoparticles to form high-performance flexible hydrogen sensors. The special process to form the high-performance flexible hydrogen sensors can combine a dry transfer printing technique and modification of SWNTs with palladium (Pd) nanoparticles to provide high-performance hydrogen sensors with excellent mechanical flexibility on plastic substrates. Two approaches can be used to decorate the SWNTs. One is physical deposition, such as electron beam evaporation (EBE) and the other is electrochemical deposition which can selectively grow palladium nanoparticles on the surface of the SWNTs, resulting in significantly decreasing the use of palladium. Preferably, the Pd nanoparticles are deposed on the SWNTs in a discontinuous arrangement so that the Pd nanoparticles are spaced away from each other to form individual discontinuous Pd nanoparticles rather a continuous Pd film.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: October 26, 2010
    Assignee: UChicago Argonne, LLC
    Inventors: Yugang Sun, Hsien-Hau Wang
  • Publication number: 20100256307
    Abstract: Novel multiblock polymers are prepared and used to disperse carbon nanotubes in solution.
    Type: Application
    Filed: December 6, 2007
    Publication date: October 7, 2010
    Inventors: Bruce A. Diner, Lech Wilczek
  • Publication number: 20100255185
    Abstract: The invention relates to a method for the production of an electrically conductive polycarbonate composite on the basis of thermoplastic polycarbonate and carbon nanotubes, wherein acid-functionalized carbon nanotubes are dispersed with molten polycarbonate.
    Type: Application
    Filed: November 25, 2008
    Publication date: October 7, 2010
    Applicant: Bayer MaterialScience AG
    Inventors: Stefan Bahnmueller, Andreas Greiner, Markus Schackmann
  • Patent number: 7807127
    Abstract: The present invention relates to a carbon nanotube that contains nitrogen based functional groups (such as nitro, nitroso, N-oxide, oxime, hydroxylamine, diazo, azo, and azide) that are covalently attached to lattice carbons of the carbon nanotube, directly or via a chemical linker. The present invention also relates to methods for the preparation of the carbon nanotube from an amino-functionalized carbon nanotube via an amino oxidation reaction. The synthetic methods of the present invention allow the nitrogen based functional groups to be attached selectively to one of two distinct regions of the carbon nanotube, the ends or the sidewall, and thus enable the synthesis of a carbon nanotube having nitrogen based functional groups substantially concentrated on either the ends or the sidewall of the carbon nanotube.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: October 5, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Farhad Forohar, Craig Whitaker, William M. Koppes
  • Patent number: 7799726
    Abstract: A composite comprising a support activated by impregnation and carbon nanotubes or nanofibers formed by vapor deposition, wherein the weight of said carbon nanotubes or nanofibers formed on the said support is at least equal to 10.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: September 21, 2010
    Assignees: Sicat, Centre National de la Recherche; Scientifique, Universite de Strasbourg
    Inventors: Cuong Pham-Huu, Ricardo Vieira, Marc J. Ledoux, Loïc Charbonniere, Raymond Ziessel
  • Patent number: 7794683
    Abstract: The present invention relates to methods for the preparation of a carbon nanotube from an amino-functionalized carbon nanotube via an amino oxidation reaction. The carbon nanotube includes nitrogen based functional groups that are covalently attached to lattice carbons of the carbon nanotube, directly or via a chemical linker. The synthetic methods of the present invention allow the nitrogen based functional groups to be attached selectively to one of two distinct regions of the carbon nanotube, and thus enable the synthesis of a carbon nanotube having nitrogen based functional groups substantially concentrated on the ends and/or the sidewall of the carbon nanotube.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: September 14, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Farhad Forohar, Craig Whitaker, William M. Koppes
  • Publication number: 20100226847
    Abstract: The present invention is a method comprising a direct chirality-selective nucleation and synthesis of single-walled carbon nanotubes from carbon-containing gases using catalytic nanoparticles of uniform size heated by ultra-short laser pulses of selected frequency to temperatures sufficient for carbon nanotube nucleation and synthesis.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 9, 2010
    Applicant: CFD RESEARCH CORPORATION
    Inventor: Aleksey V. Vasenkov
  • Patent number: 7790650
    Abstract: The present invention relates to catalysts comprising at least one support and at least one layer applied to said support, said layer containing a) 20 to 95% by weight of at least one aluminum, silicon, titanium or magnesium oxide compound or a silicon carbide or a carbon support or mixtures thereof, and b) 5 to 50% by weight of at least one nanocarbon. The catalysts can be used to produce unsaturated hydrocarbons by means of the oxidative dehydrogenation of alkylaromatics, alkenes and alkanes in the gas phase.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: September 7, 2010
    Assignee: NanoC Sdn. Bhd.
    Inventors: Robert Schlogl, Gerhard Mestl
  • Publication number: 20100219393
    Abstract: Carbon nanotube template arrays may be edited to form connections between proximate nanotubes and/or to delete undesired nanotubes or nanotube junctions.
    Type: Application
    Filed: February 10, 2010
    Publication date: September 2, 2010
    Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Nathan P. Myhrvold, Clarence T. Tegreene, Charles Whitmer, Lowell L. Wood, JR.
  • Patent number: 7785998
    Abstract: Some embodiments include methods of forming dispersions of nanoparticles. The nanoparticles are incorporated into first coordination complexes in which the nanoparticles are coordinated to hydrophobic ligands, and the first coordination complexes are dispersed within a non-polar solvent. While the first coordination complexes are within the non-polar solvent, the ligands are reacted with one or more reactants to convert the first coordination complexes into second coordination complexes that contain hydrophilic ligands. The second coordination complexes are then extracted from the non-polar solvent into water, to form a mixture of the second coordination complexes and the water. In some embodiments, the mixture may be dispersed across a semiconductor substrate to form a uniform distribution of the nanoparticles across the substrate. In some embodiments, the nanoparticles may then be incorporated into flash memory devices as charge-trapping centers.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: August 31, 2010
    Assignee: Micron Technology, Inc.
    Inventor: Dan Millward
  • Patent number: 7785472
    Abstract: A method of separating, concentrating or purifying uniform carbon nanotubes with desired properties (diameter, chiral vector, etc) in a highly sensitive manner by the use of structure-sensitive properties peculiar to carbon nanotubes; and an apparatus therefor. There is provided a method of separating, concentrating, or purifying carbon nanotubes with the desired properties contained in a sample, comprising the steps of (a) irradiating a sample containing carbon nanotubes with light; and (b) selecting carbon nanotubes with desired properties. In a preferred embodiment, the light irradiation of the step (a) can be carried out in the presence of a metal so as to cause specified carbon nanotubes to selectively induce a photocatalytic reaction, resulting in metal deposition. Further, in a preferred embodiment, a given magnetic filed can be applied in the steps (b) so as to attain accumulation or concentration or carbon nanotubes with metal deposited.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: August 31, 2010
    Assignee: Japan Science and Technology Agency
    Inventor: Kei Murakoshi
  • Patent number: 7767615
    Abstract: A method for producing aligned carbon nanotubes and/or nanofibres comprises providing finely divided substrate particle having substantially smooth faces with radii of curvature of more than 1 ?m and of length and breadth between 1 ?m and 5 mm and having catalyst material on their surface and a carbon-containing gas at a temperature and pressure at which the carbon-containing gas will react to form carbon when in the presence of the supported catalyst, and forming aligned nanotubes and/or nanofibres by the carbon-forming reaction.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: August 3, 2010
    Assignee: Cambridge University Technical Services Limited
    Inventors: Ian Kinloch, Charanjeet Singh, Milo Sebastian Peter Shaffer, Krzysztof K. K. Koziol, Alan Windle
  • Patent number: 7767616
    Abstract: A catalyst for an electro-chemical oxygen reduction reaction (ORR) of a bundle of longitudinally aligned carbon nanotubes having a catalytically active transition metal incorporated longitudinally in said nanotubes. A method of making an electro-chemical catalyst for an oxygen reduction reaction (ORR) having a bundle of longitudinally aligned carbon nanotubes with a catalytically active transition metal incorporated throughout the nanotubes, where a substrate is in a first reaction zone, and a combination selected from one or more of a hydrocarbon and an organometallic compound containing an catalytically active transition metal and a nitrogen containing compound and an inert gas and a reducing gas is introduced into the first reaction zone which is maintained at a first reaction temperature for a time sufficient to vaporize material therein.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: August 3, 2010
    Assignee: UChicago Argonne, LLC
    Inventors: Di-Jia Liu, Junbing Yang, Xiaoping Wang
  • Patent number: 7767114
    Abstract: In a method for functionalizing a carbon nanotube surface, the nanotube surface is exposed to at least one vapor including at least one functionalization species that non-covalently bonds to the nanotube surface, providing chemically functional groups at the nanotube surface, producing a functionalized nanotube surface. A functionalized nanotube surface can be exposed to at least one vapor stabilization species that reacts with the functionalization layer to form a stabilization layer that stabilizes the functionalization layer against desorption from the nanotube surface while providing chemically functional groups at the nanotube surface, producing a stabilized nanotube surface. The stabilized nanotube surface can be exposed to at least one material layer precursor species that deposits a material layer on the stabilized nanotube surface.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: August 3, 2010
    Assignee: President and Fellows of Harvard College
    Inventors: Roy G. Gordon, Damon B. Farmer
  • Patent number: 7745330
    Abstract: Carbon nanotube apparatus, and methods of carbon nanotube modification, include carbon nanotubes having locally modified properties with the positioning of the modifications being controlled. More specifically, the positioning of nanotubes on a substrate with a deposited substance, and partially vaporizing part of the deposited substance etches the nanotubes. The modifications of the carbon nanotubes determine the electrical properties of the apparatus and applications such as a transistor or Shockley diode. Other applications of the above mentioned apparatus include a nanolaboratory that assists in study of merged quantum states between nanosystems and a macroscopic host system.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: June 29, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Francisco Santiago, Victor H. Gehman, Jr., Karen J. Long, Kevin A. Boulais
  • Publication number: 20100159126
    Abstract: Aqueous emulsion comprising: (i) at least one functionalized polyolefin (gPO), obtained by grafting, on at least one unfunctionalized polyolefin (PO), acid and/or anhydride groups, the acid and/or anhydride groups being optionally completely or partially neutralized by at least one neutralizing agent; (ii) at least one emulsifier; (iii) at least one dispersant containing water; and (iv) carbon nanotubes.
    Type: Application
    Filed: April 5, 2007
    Publication date: June 24, 2010
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventor: Henri Wautier
  • Patent number: 7740826
    Abstract: A method for functionalizing the wall of single-wall or multi-wall carbon nanotubes involves the use of acyl peroxides to generate carbon-centered free radicals. The method allows for the chemical attachment of a variety of functional groups to the wall or end cap of carbon nanotubes through covalent carbon bonds without destroying the wall or endcap structure of the nanotube. Carbon-centered radicals generated from acyl peroxides can have terminal functional groups that provide sites for further reaction with other compounds. Organic groups with terminal carboxylic acid functionality can be converted to an acyl chloride and further reacted with an amine to form an amide or with a diamine to form an amide with terminal amine. The reactive functional groups attached to the nanotubes provide improved solvent dispersibility and provide reaction sites for monomers for incorporation in polymer structures. The nanotubes can also be functionalized by generating free radicals from organic sulfoxides.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: June 22, 2010
    Assignee: William Marsh Rice University
    Inventors: Valery N. Khabashesku, Haiqing Peng, John L. Margrave, Mary Lou Margrave, legal representative, Wilbur Edward Billups, Yunming Ying
  • Publication number: 20100140097
    Abstract: A method comprising: dispersing carbon nanotubes in a solvent; and depositing the carbon nanotubes on a porous, conductive substrate; wherein the porous, conductive substrate is capable of functioning as a filter and a working electrode. The method of claim 1 further comprising: engaging the porous, conductive substrate with deposited carbon nanotubes in an electrochemical cell; and depositing at least one metallic structure on the surface of the carbon nanotubes from an electrolyte solution to form metallized carbon nanotubes. A composite comprising: metallized carbon nanotubes generated by the method of claim 2; wherein the at least one metallic structure comprises a conductive metal atom selected from the group consisting of platinum, gold nickel, copper, iron, chromium, zinc, and combinations thereof; and a matrix material selected from the group consisting of epoxies, thermosets, thermoplastics, elastomers, metals, metal matrix composites, ceramics and combinations thereof.
    Type: Application
    Filed: December 26, 2007
    Publication date: June 10, 2010
    Applicant: Texas Southern University
    Inventors: Xin Wei, Yuanjian Deng, Renard L. Thomas, Bobby Wilson
  • Patent number: 7727505
    Abstract: A method for separating carbon nanotubes comprises: providing a mixture of carbon nanotubes; introducing an organic molecule having an end group capable of being chelated by a metal ion to the mixture of carbon nanotubes to covalently bond the organic molecule to at least one of the mixture of carbon nanotubes; and introducing a metal salt to the mixture of carbon nanotubes to chelate the end group of the organic molecule with the metal ion of the metal salt; and centrifuging the mixture of carbon nanotubes to cause the separation of the carbon nanotubes based on a density differential of the carbon nanotubes.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: June 1, 2010
    Assignee: International Business Machines Corporation
    Inventors: Ali Afazali-Ardakani, James B. Hannon, Cherie R. Kagan, George S. Tulevski
  • Publication number: 20100119422
    Abstract: A carbon nanotube filter. The filter including a filter housing; and chemically active carbon nanotubes within the filter housing, the chemically active carbon nanotubes comprising a chemically active layer formed on carbon nanotubes or comprising chemically reactive groups on sidewalls of the carbon nanotubes; and media containing the chemically active carbon nanotubes.
    Type: Application
    Filed: January 6, 2010
    Publication date: May 13, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Steven J. Holmes, Mark C. Hakey, David V. Horak, James G. Ryan
  • Patent number: 7709243
    Abstract: The present invention is related to a biochip and a biomolecular detection system using the same. In particular, the biomolecular detection system is capable of detecting biological molecules (biomolecules) such as DNA or protein at a high speed. The biochip comprises a supporting structure, conductive materials aligned vertically on, and associated with, the supporting structure, and biomolecule probes operably linked to the conductive materials. The biomolecular detection system using the biochip may precisely detect biomolecules as well as the density of the biomolecules.
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: May 4, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-jun Park, Jong-min Kim, Sung-kee Kang, Jung-woo Kim
  • Patent number: 7708816
    Abstract: A carbon nanotube filter. The filter including a filter housing; and chemically active carbon nanotubes within the filter housing, the chemically active carbon nanotubes comprising a chemically active layer formed on carbon nanotubes or comprising chemically reactive groups on sidewalls of the carbon nanotubes; and media containing the chemically active carbon nanotubes.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: May 4, 2010
    Assignee: International Business Machines Corporation
    Inventors: Steven J. Holmes, Mark C. Hakey, David V. Horak, James G. Ryan
  • Patent number: 7696512
    Abstract: The electron device of the present invention has a carbon-based linear structural body including at least one conductive particle, a first electrode and a second electrode disposed at both end of the carbon-based linear structural body, so as to subject the carbon-based linear structural body including at least one conductive particle to connect between the first electrode and the second electrode. A process of manufacturing the electron device includes steps of: forming a carbon-based linear structural body including at least one conductive particle, using a catalyst of a first island and a second island selected from two or more of islands of the catalyst on a substrate; and forming a first electrode and a second electrode so as to connect the first electrode with the first island and one end of the carbon-based linear structural body, and the second electrode with the second island and the other end of the carbon-based linear structural body.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: April 13, 2010
    Assignees: Fujitsu Limited, National Institute of Advanced Industrial Science and Technology
    Inventors: Yuji Awano, Kazuhiko Matsumoto
  • Patent number: 7695993
    Abstract: A method can be adapted for design and preparation of a matrix nanocomposite sensing film for hydrogen sulphide SAW/BAW detection at room temperature. A matrix nanocomposite can be synthesized by incorporating both single-wall and multi-wall thiolated carbon nanotubes into conductive organic polymers or ceramic nanocrystalline in a properly functionalized manner. A thin organic sensing film can be prepared based on the matrix nanocomposite. The matrix nanocomposite sensing film can be prepared on a surface of a SAW/BAW device by an additive process or a direct printing process. Finally, the sensing film can be consolidated by thermal annealing or laser annealing under ambient conditions in order to obtain the stable sensing film with higher sensitivity and electrical properties for a SAW/BAW based H2S sensor.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: April 13, 2010
    Assignee: Honeywell International Inc.
    Inventors: Bogdan-Catalin Serban, Stefan I. Voicu, Stefan-Dan Costea, Cornel P. Cobianu
  • Publication number: 20100086787
    Abstract: Exemplary embodiments provide coating compositions having pseudo-fluorine surface and methods for processing and using the coating compositions. The coating composition can include, for example, a plurality of fluorine-containing resin fillers and a plurality of nanotubes (e.g., carbon nanotubes (CNTs)) dispersed in a polymer matrix that contains, e.g., one or more cross-linked polymers. The fluorine-containing resin fillers can provide a pseudo-fluorine surface for a low surface energy of the coating composition. The nanotubes can be dispersed in the polymer matrix to provide an improved mechanical robustness of the coating composition. The coating composition can be coated on a member surface, wherein the coated member can be, for example, a fuser member, a fixing member, a pressure roller, or a release agent donor member, used in an electrostatographic printing device or process.
    Type: Application
    Filed: October 6, 2008
    Publication date: April 8, 2010
    Applicant: XEROX CORPORATION
    Inventors: Yu QI, Nan-Xing Hu, Qi Zhang, Gordon Sisler, Brian McAneney
  • Publication number: 20100069604
    Abstract: Epoxy resins are chemically attached to carbon nanotubes (CNTs), in a one-step process in which a reaction mixture comprising the epoxy polymer, the CNTs and a bridging agent which is a chemical compound capable of forming living polymers, e.g. styrene or MMA is formed and radical formation is initiated in the reaction mixture; the epoxy polymer or monomer grafts onto the CNTs through the intermediary block of the bridging agent.
    Type: Application
    Filed: February 28, 2008
    Publication date: March 18, 2010
    Applicant: NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Benoit Simard, Jingwen Guan, Stephane Dénommée
  • Patent number: 7678707
    Abstract: Carbon nanotube apparatus, and methods of carbon nanotube modification, include carbon nanotubes having locally modified properties with the positioning of the modifications being controlled. More specifically, the positioning of nanotubes on a substrate with a deposited substance, and partially vaporizing part of the deposited substance etches the nanotubes. The modifications of the carbon nanotubes determine the electrical properties of the apparatus and applications such as a transistor or Shockley diode. Other applications of the above mentioned apparatus include a nanolaboratory that assists in study of merged quantum states between nanosystems and a macroscopic host system.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: March 16, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Francisco Santiago, Victor H. Gehman, Jr., Karen J. Long, Kevin A. Boulais
  • Patent number: 7674324
    Abstract: An exposure system for exposing a photoresist layer on a top surface of a wafer to light. The exposure system including: an environment chamber containing a light source, one or more focusing lenses, a mask holder, a slit and a wafer stage, the light source, all aligned to an optical axis, the wafer stage moveable in two different orthogonal directions orthogonal to the optical axis, the mask holder and the slit moveable in one of the two orthogonal directions; a filter in a sidewall of the environment chamber, the filter including: a filter housing containing chemically active carbon nanotubes, the chemically active carbon nanotubes comprising a chemically active layer formed on carbon nanotubes or comprising chemically reactive groups on sidewalls of the carbon nanotubes; and means for forcing air or inert gas first through the filter then into the environment chamber and then out of the environment chamber.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: March 9, 2010
    Assignee: International Business Machines Corporation
    Inventors: Steven J. Holmes, Mark C. Hakey, David V. Horak, James G. Ryan
  • Patent number: 7670510
    Abstract: The invention provides an adduct comprising a carbon nanotube and a transitional metal coordination complex, wherein the metal of the complex is attached by a covalent linkage to at least one oxygen moiety on the nanotube.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: March 2, 2010
    Assignee: The Research Foundation of State University of New York
    Inventors: Stanislaus S. Wong, Sarbajit Banerjee
  • Patent number: 7670831
    Abstract: Conductive carbon nanotubes (CNTs) obtained by dotting carboxylated CNTs with metal nanocrystals by chemical functional groups, are described, as well as a method for fabricating a pattern or film of the conductive CNTs which involves repeatedly depositing conductive CNTs on a substrate to achieve high surface density. A biosensor is described, in which bioreceptors that bind to target biomolecules are selectively attached to conductive CNTs or a conductive CNT pattern or film. By use of the conductive biosensor, various target biomaterials that bind or react with the bioreceptors can be precisely measured directly or by electrochemical signals at large amounts in one step. Additionally, the biosensor can be used for an electrical detection method capable of providing precise measurement results even with a small amount of source material.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: March 2, 2010
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Sang Yup Lee, Hee Tae Jung, Dae Hwan Jung, Young Koan Ko, Do Hyun Kim, Seok Jae Lee, Byung Hun Kim, Jae Shin Lee
  • Publication number: 20100029986
    Abstract: Methods of forming a multi walled or single walled carbon nanotube with one or more amine groups on the surface thereof are described. The method includes reacting a carbon nanotube having a hydroxyl surface group or a carboxyl surface group with ammonia in the presence of a catalyst at a temperature of about 300° C. or more.
    Type: Application
    Filed: October 20, 2008
    Publication date: February 4, 2010
    Inventor: David Abecassis
  • Publication number: 20090309456
    Abstract: A generator includes a first conductive layer, a plurality of elongated piezoelectric nanostructures and a conductive electrode. The piezoelectric nanostructures extend upwardly from the first conductive layer and include a carbon nanotube core and a piezoelectric sheath enveloping at least a portion of the carbon nanotube core. Each piezoelectric nanostructure includes a first end disposed adjacent to the first conductive layer and an opposite second end. The conductive electrode is disposed adjacent to the second end of each of the piezoelectric nanostructures. The conductive electrode is configured so that a Schottky barrier is formed between the second end of at least one of the piezoelectric nanostructures and the conductive electrode when a force is applied to the generator that causes the conductive electrode to touch the piezoelectric nanostructures and to induce stress in the piezoelectric nanostructures.
    Type: Application
    Filed: March 17, 2009
    Publication date: December 17, 2009
    Applicant: GEORGIA TECH RESEARCH CORPORATION
    Inventor: David W. Stollberg
  • Patent number: 7632481
    Abstract: The present invention is directed to methods of forming sidewall-functionalized carbon nanotubes, wherein such functionalized carbon nanotubes have hydroxyl-terminated moieties covalently attached to their sidewalls. Generally, such methods involve chemistry on carbon nanotubes that have first been fluorinated. In some embodiments, fluorinated carbon nanotubes (“fluoronanotubes”) are reacted with mono-metal salts of a dialcohol, MO—R—OH, where M is a metal and R is hydrocarbon or other organic chain and/or ring structural unit. In such embodiments, —O—R—OH displaces —F on the nanotube, the fluorine leaving as MF. Generally, such mono-metal salts are formed in situ by the addition of MOH to one or more dialcohols in which the fluoronanotubes have been dispersed. In some embodiments, fluoronanotubes are reacted with amino alcohols, such as being of the type H2N—R—OH, wherein —N(H)—R—OH displaces —F on the nanotube, the fluorine leaving as HF.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: December 15, 2009
    Assignee: William Marsh Rice University
    Inventors: Valery N. Khabashesku, Lei Zhang, John L. Margrave, Mary Lou Margrave, legal representative
  • Publication number: 20090269267
    Abstract: The present invention relates to a continuous method and apparatus for functionalizing a carbon nanotube, and more specifically, to a continuous method and apparatus for functionalizing a carbon nanotube including preparing a functionalized product by functionalizing a carbon nanotube solution including nitro compound according to the following Chemical Formula 1 and carbon nanotube mixture including an oxidizer for forming nitric acid under subcritical water or supercritical water condition of 50 to 400 atm and a continuous method and apparatus for functionalizing a carbon nanotube under subcritical water or supercritical water condition using nitro compound without using strong acids or strong bases. R—(NOx)y ??[Chemical Formula 1] wherein Chemical Formula 1, R is alkyl group of C1 to C7 or aryl group of C6 to C20 and x and y are integers of 1 to 3 independently.
    Type: Application
    Filed: April 21, 2009
    Publication date: October 29, 2009
    Inventors: Jin Seo Lee, Joo Hee Han, Seung-Hoe Do, Seong Cheol Hong
  • Patent number: 7601421
    Abstract: The present invention is directed to methods of integrating carbon nanotubes into epoxy polymer composites via chemical functionalization of carbon nanotubes, and to the carbon nanotube-epoxy polymer composites produced by such methods. Integration is enhanced through improved dispersion and/or covalent bonding with the epoxy matrix during the curing process. In general, such methods involve the attachment of chemical moieties (i.e., functional groups) to the sidewall and/or end-cap of carbon nanotubes such that the chemical moieties react with either the epoxy precursor(s) or the curing agent(s) (or both) during the curing process. Additionally, in some embodiments, these or additional chemical moieties can function to facilitate dispersion of the carbon nanotubes by decreasing the van der Waals attractive forces between the nanotubes.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: October 13, 2009
    Assignee: William Marsh Rice University
    Inventors: Valery N. Khabashesku, Jiang Zhu, Haiqing Peng, Enrique V. Barrera, John L. Margrave, Mary Lou Margrave, legal representative
  • Publication number: 20090226704
    Abstract: The present invention relates to covalently bonded fullerene-functionalized carbon nanotubes (CBFFCNTs), a method and an apparatus for their production and to their end products. CBFFCNTs are carbon nanotubes with one or more fullerenes or fullerene based molecules covalently bonded to the nanotube surface. They are obtained by bringing one or more catalyst particles, carbon sources and reagents together in a reactor.
    Type: Application
    Filed: June 15, 2006
    Publication date: September 10, 2009
    Applicant: CANATU OY
    Inventors: Esko I. Kauppinen, Hua Jiang, David P. Brown, Albert G. Nasibulin
  • Patent number: 7576027
    Abstract: Methods for forming compositions including carbide-containing nanorods and/or oxycarbide-containing nanorods and/or carbon nanotubes bearing carbides and oxycarbides. Rigid porous structures including oxycarbide-containing nanorods and/or carbide containing nanorods and/or carbon nanotubes bearing modified carbides and oxycarbides and methods of making the same are also provided. The compositions and rigid porous structures of the invention can be used either as catalyst and/or catalyst supports in fluid phase catalytic chemical reactions. Processes for making supported catalyst for selected fluid phase catalytic reactions are also provided.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: August 18, 2009
    Assignee: Hyperion Catalysis International, Inc.
    Inventors: Jun Ma, David Moy
  • Patent number: 7572426
    Abstract: The present invention is directed toward methods of selectively functionalizing carbon nanotubes of a specific type or range of types, based on their electronic properties, using diazonium chemistry. The present invention is also directed toward methods of separating carbon nanotubes into populations of specific types or range(s) of types via selective functionalization and electrophoresis, and also to the novel compositions generated by such separations.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: August 11, 2009
    Assignee: William Marsh Rice University
    Inventors: Michael S. Strano, Monica Usrey, Paul Barone, Christopher A. Dyke, James M. Tour, W. Carter Kittrell, Robert H. Hauge, Richard E. Smalley