Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8187565 | Embedded nanoparticle films and method for their formation in selective areas on a surface The invention is directed to a method of positioning nanoparticles on a patterned substrate. The method comprises providing a patterned substrate with selectively positioned recesses, and applying a solution or suspension of nanoparticles to the patterned substrate ... | 05/29/2012 |
| 8092774 | Nanotube-amino acids and methods for preparing same The present invention is directed toward compositions comprising carbon nanotubes (CNTs) that are sidewall-functionalized with amino acid groups, and to amino acid compositions comprising carbon nanotubes. The present invention is also directed to simple and relativ... | 01/10/2012 |
| 8052951 | Carbon nanotubes grown on bulk materials and methods for fabrication Disclosed are structures formed as bulk support media having carbon nanotubes formed therewith. The bulk support media may comprise fibers or particles and the fibers or particles may be formed from such materials as quartz, carbon, or activated carbon. Metal cataly... | 11/08/2011 |
| 7968073 | Stable aqueous dispersions of carbon nanotubes Methods of producing stable dispersions of single-walled carbon nanotube structures in solutions are achieved utilizing dispersal agents. The dispersal agents are effective in substantially solubilizing and dispersing single-walled carbon nanotube structures in aque... | 06/28/2011 |
| 7959889 | Carbon microtubes A carbon microtube comprising a hollow, substantially tubular structure having a porous wall, wherein the microtube has a diameter of from about 10 μm to about 150 μm, and a density of less than 20 mg/cm3. Also described is a carbon microtube, having a ... | 06/14/2011 |
| 7943110 | Crosslinked carbon nanotube A crosslinked carbon nanotube, in which multiple carbon nanotubes therein are crosslinked with each other at multiple cross-linking sites via a connecting group containing a π-electron conjugation system, and the bond between the connecting group and the carbon nan... | 05/17/2011 |
| 7906096 | Chiral inorganic-organic composite porous material and method for preparing the same The present invention provides a chiral inorganic-organic composite porous material in which cationic chiral organic molecules are present as charge-balancing cations in a porous material containing charge-balancing cations, as well as a method for preparing the sam... | 03/15/2011 |
| 7862794 | Surface treatment of carbon microfibers A method of oxidizing the surface of carbon microfibers that includes contacting the microfibers with an oxidizing agent that includes sulfuric acid and potassium chlorate under reaction conditions sufficient to oxidize the surface. The invention also features a met... | 01/04/2011 |
| 7854914 | Soluble carbon nanotubes The present invention relates to a method of solubilizing carbon nanotubes, to carbon nanotubes produced thereby and to uses of said carbon nanotubes. ... | 12/21/2010 |
| 7829056 | Method of coating a substrate with a polymer having a combination of crown ether and carbon nanotubes having guanidine groups Disclosed herein is a method of forming a guanidine group on carbon nanotubes to improve the dispersibility of carbon nanotubes, a method of attaching carbon nanotubes having guanidine groups to a substrate, and carbon nanotubes and a substrate manufactured by the a... | 11/09/2010 |
| 7811542 | Carbon nanotube particulates, compositions and use thereof A method for making carbon nanotube particulates involves providing a catalyst comprising catalytic metals, such as iron and molybdenum or metals from Group VIB or Group VIIIB elements, on a support material, such as magnesia, and contacting the catalyst with a gase... | 10/12/2010 |
| 7780939 | Sidewall derivatized carbon nanotubes This invention is directed to chemical derivatives of carbon nanotubes wherein the carbon nanotubes have a diameter up to 3 nm. In one embodiment, this invention also provides a method for preparing carbon nanotubes having substituents attached to the side wall of t... | 08/24/2010 |
| 7749479 | Carbon fibers having improved strength and modulus and an associated method and apparatus for preparing same The invention is directed to carbon fibers having high tensile strength and modulus of elasticity. The invention also provides a method and apparatus for making the carbon fibers. The method comprises advancing a precursor fiber through an oxidation oven wherein the... | 07/06/2010 |
| 7749478 | Morphological control of carbon nanotubes This disclosure relates to morphological control of carbon nanotubes, to form shapes, including, inter alia, nanosprings, nanocoils and nanohooks of desired shape, diameter, chirality and /or pitch wherein a desired morphological design may be manipulated with spati... | 07/06/2010 |
| 7736615 | Device structure of carbon fibers and manufacturing method thereof An aggregate structure of carbon fibers, organized by a plurality of carbon fibers, includes, an aggregate of the carbon fibers aligned in a lengthwise direction, in which a density of the carbon fibers at one side end is different from a density of the carbon fiber... | 06/15/2010 |
| 7731929 | Spatial localization of dispersed single walled carbon nanotubes into useful structures Methods of aligning single walled carbon nanotube structures into selected orientations for a variety of different applications are achieved by initially dispersing the nanotube structures in aqueous solutions utilizing a suitable dispersal agent. The dispersal agen... | 06/08/2010 |
| 7704480 | Method for making carbon nanotube yarn A carbon nanotube yarn includes a number of carbon nanotube yarn strings bound together, and each of the carbon nanotube yarn strings includes a number of carbon nanotube bundles that are joined end to end by van der Waals attractive force, and each of the carbon na... | 04/27/2010 |
| 7691359 | Carbon nanotubes derivatized with diazonium species The invention incorporates new processes for the chemical modification of carbon nanotubes. Such processes involve the derivatization of multi- and single-wall carbon nanotubes, including small diameter (ca. 0.7 nm) single-wall carbon nanotubes, with diazonium speci... | 04/06/2010 |
| 7638111 | Catalytic etching of carbon fibers The present invention relates to a method for etching carbon fibers, in particular carbon nanofibers and to the carbon nanofibers obtainable by this method, and the use thereof. ... | 12/29/2009 |
| 7638110 | Carbon fiber According to the present invention, there is disclosed a carbon fiber having a strand tensile strength of 6,100 MPa or more, a strand tensile modulus of 340 GPa or more and a density of 1.76 g/cm3 or more and possessing, on the surface, striations oriente... | 12/29/2009 |
| 7615204 | Direct synthesis of long single-walled carbon nanotube strands Long, macroscopic nanotube strands or cables, up to several tens of centimeters in length, of aligned single-walled nanotubes are synthesized by the catalytic pyrolysis of n-hexane using an enhanced vertical floating catalyst CVD technique. The long strands of nanot... | 11/10/2009 |
| 7601322 | Method for making field-effect transistor using carbon nanotube Carbon nanotube, method for positioning the same, field effect transistor made using the carbon nanotube, method for making the field-effect transistor, and a semiconductor device are provided. The carbon nanotube includes a bare carbon nanotube and a functional gro... | 10/13/2009 |
| 7550129 | Graphite nanofibers having graphite sheets parallel to the growth axis Substantially crystalline graphitic carbon nanofibers comprised of graphite sheets that are substantially parallel to the longitudinal axis of the nanofiber, preferably wherein said graphite sheets form a multifaceted tubular structure. ... | 06/23/2009 |
| 7527780 | Functionalized single-wall carbon nanotubes This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one embodiment, this invention also provides a method for preparing single ... | 05/05/2009 |
| 7470418 | Ultra-fine fibrous carbon and preparation method thereof The present invention discloses ultra-fine fibrous carbon and preparation of the same. Specifically, the present ultra-fine fibrous carbon is characterized by the graphite-like structure with the sp2 hybrid carbon content of more than 95% per total conten... | 12/30/2008 |
| 7452519 | Sidewall functionalization of single-wall carbon nanotubes through C-N bond forming substitutions of fluoronanotubes The present invention is directed toward a method of sidewall-functionalizing single-walled carbon nanotubes (SWNTs) through C—N bond forming substitution reactions with fluorinated SWNTs (fluoronanotubes), and to the sidewall-functionalized SWNTs comprising C—N... | 11/18/2008 |
| 7442358 | Flaky carbonaceous particle and production method thereof A carbonaceous particle is provided which comprises a hexagonal flake formed of an aggregate of a plurality of nanocarbons and having a side length of 0.1 to 100 mm and a thickness of 10 nm to 1 mm. Thereby, a carbonaceous particle is provided which has an excellent... | 10/28/2008 |
| 7438839 | Formulation for the manufacture of carbon-carbon composite materials Method for manufacturing a carbonized carbon-carbon composite preform, by: mixing (a) chopped carbon fiber, chopped stabilized pitch fiber, or chopped oxidized polyacrylonitrile (PAN) fiber, (b) thermoplastic pitch binder powder, and (c) activated carbon powder to f... | 10/21/2008 |
| 7429371 | Reversible oxidation of carbon nanotubes Carbon nanotubes have been reversibly and readily oxidized and reduced with common chemicals in solution, thereby allowing the nanotubes to be used as catalysts for chemical reactions and as stable charge storage devices. ... | 09/30/2008 |
| 7419651 | Method for producing self-assembled objects comprising fullerene nanotubes and compositions thereof This invention relates generally to a method for producing self-assembled objects comprising fullerene nanotubes and compositions thereof. In one embodiment, the present invention involves a three-dimensional structure of derivatized fullerene nanotubes that spontan... | 09/02/2008 |
| 7402340 | High thermal conductive element, method for manufacturing same, and heat radiating system It is an object of the present invention to provide a high thermal conductive element that has improved thermal conductivity in the layer direction while retaining the high thermal conductivity characteristics in the planar direction possessed by graphite. The prese... | 07/22/2008 |
| 7396798 | Method for preparing catalyst supports and supported catalysts from single walled carbon nanotubes A new method for preparing a supported catalyst is herein provided. A carbon nanotube structure such as a rigid porous structure is formed from single walled carbon nanotubes. A metal catalyst is then loaded or deposited onto the carbon nanotube structure. The loade... | 07/08/2008 |
| 7390476 | Carbon fiber paper construction and manufacturing process A carbon fiber paper manufacturing process and construction has oxidized fiber as raw material needle punched into a construction of 0.1˜20 mm thick, 5˜500 g/m2 oxidized fiber felt of weight, then impregnated in high density epoxy, hot compressed and hardened, the... | 06/24/2008 |
| 7390477 | Fullerene nanotube compositions This invention relates generally to a fullerene nanotube composition. The fullerene nanotubes may be in the form of a felt, such as a bucky paper. Optionally, the fullerene nanotubes may be derivatized with one or more functional groups. Devices employing the fuller... | 06/24/2008 |
| 7390593 | Fine carbon fiber, method for producing the same and use thereof A vapor grown fine carbon fiber, each fiber filament of the carbon fiber comprising, in its interior, a hollow space extending along the fiber filament, and having a multi-layer structure, an outer diameter of 2 to 500 nm, and an aspect ratio of 1 to 100, wherein th... | 06/24/2008 |
| 7372051 | Electric charged particle beam microscopy, electric charged particle beam microscope, critical dimension measurement and critical dimension measurement system Magnification errors are reduced in the required range of magnification in electric charged particle beam application apparatuses and critical dimension measurement instruments. To achieve this, a first image, whose magnification for the specimen is actually measure... | 05/13/2008 |
| 7368009 | Carbon fine particle structure and process for producing the same, carbon fine particle transcriptional body for producing the same, solution for producing carbon fine particle structure, carbon fine particle structure, electronic device using carbon fine particle structure and process for producing the same, and integrated circuit A carbon fine particle structure containing plural carbon fine particles having a graphite structure and a crosslinked part containing plural functional groups chemically bonded to each other, at least one ends of each of the functional groups being connected to dif... | 05/06/2008 |
| 7368712 | Y-shaped carbon nanotubes as AFM probe for analyzing substrates with angled topography A Y-shaped carbon nanotube atomic force microscope probe tip and methods comprise a shaft portion; a pair of angled arms extending from a same end of the shaft portion, wherein the shaft portion and the pair of angled arms comprise a chemically modified carbon nanot... | 05/06/2008 |
| 7357906 | Method for fractionating single-wall carbon nanotubes The invention relates generally to dispersing and fractionating single-wall carbon nanotubes, which can be derivatized to facilitate fractionation, for example, by adding solubilizing moieties to the nanotubes. ... | 04/15/2008 |
| 7354563 | Method for purification of as-produced fullerene nanotubes This invention relates generally to a fullerene nanotube purification process and more particularly to a purification process that comprises heating the fullerene nanotube-containing felt under oxidizing conditions to remove the amorphous carbon deposits and other c... | 04/08/2008 |
