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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Dai; Hongjie
Address:
Sunnyvale, CA
No. of patents:
44
Patents:




Patent Number Title Of Patent Date Issued
7510695 Method for forming a patterned array of fullerene nanotubes March 31, 2009
This invention relates generally to forming a patterned array of fullerene nanotubes. In one embodiment, a nanoscale array of microwells is provided on a substrate; a metal catalyst is deposited in each microwells; and a stream of hydrocarbon or CO feedstock gas is directed at the substr
7481989 Method for cutting fullerene nanotubes January 27, 2009
This invention relates generally to cutting fullerene nanotubes. In one embodiment, the present invention provides for preparation of homogeneous populations of short fullerene nanotubes by cutting and annealing (reclosing) the nanotube pieces followed by fractionation. The cutting a
7459312 Photodesorption in carbon nanotubes December 2, 2008
Carbon nanotube devices are manipulated in a manner that is useful for a variety of implementations. According to an example embodiment of the present invention, light (632) is used to photodesorb molecules from a carbon nanotube (620).
7419651 Method for producing self-assembled objects comprising fullerene nanotubes and compositions ther September 2, 2008
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 spontaneously form. It includ
7419624 Methods for producing composites of fullerene nanotubes and compositions thereof September 2, 2008
This invention relates generally to a method for producing composites of fullerene nanotubes and compositions thereof. In one embodiment, the present invention involves a method of producing a composite material that includes a matrix and a fullerene nanotube material embedded within
7416699 Carbon nanotube devices August 26, 2008
Nanotubes and nanotube-based devices are implemented in a variety of applications. According to an example embodiment of the present invention, a nanotube is adapted to pass current between two conductive elements. In one implementation, each conductive element includes a catalyst ma
7390767 Method for producing a catalyst support and compositions thereof June 24, 2008
This invention relates generally to a method for producing fullerene nanotube catalyst supports and compositions thereof. In one embodiment, fullerene nanotubes or fullerene nanotube structures can be employed as the support material. A transition metal catalyst is added to the fulle
7390477 Fullerene nanotube compositions June 24, 2008
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 fullerene nanotubes of this
7357906 Method for fractionating single-wall carbon nanotubes April 15, 2008
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.
7354563 Method for purification of as-produced fullerene nanotubes April 8, 2008
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 contaminating mater
7318908 Integrated nanotube sensor January 15, 2008
Integrated nanotube sensors are adapted for detecting various chemical and biological molecules. In one implementation, nanotube sensor arrays are formed as nano-electronic noses capable of such detection, and can be implemented in devices including carbon nanotube-based electronic noses
7282191 Carbon nanotube growth October 16, 2007
The growth of carbon nanotubes such as single-walled carbon nanotubes (SWNTs) is achieved using a catalyst and carbon feedstock gas, with the catalyst being delivered using an approach for relatively clean delivery and placement thereof. In one example embodiment, nanoparticles are d
7205069 Membrane comprising an array of single-wall carbon nanotubes April 17, 2007
This invention relates generally to membranes comprising an array of single-wall carbon nanotubes (SWNT) wherein the membrane is nanoporous. In one embodiment, the membrane comprises a substantially two-dimensional array of a homogeneous population of single-walled nanotubes aggregated
7183228 Carbon nanotube growth February 27, 2007
Patterned growth of arrays of SWNTs is achieved at the full-wafer scale. According to an example embodiment of the present invention, the chemistry of CH.sub.4 CVD has been discovered to be sensitive to the concentration of H.sub.2, leading to three regimes of growth conditions. The
7166325 Carbon nanotube devices January 23, 2007
Nanotubes and nanotube-based devices are implemented in a variety of applications. According to an example embodiment of the present invention, a nanotube device is manufactured having a nanotube extending between two conductive elements. In one implementation, each conductive elemen
7115864 Method for purification of as-produced single-wall carbon nanotubes October 3, 2006
This invention relates generally to a single-wall carbon nanotube (SWNT) purification process and more particularly to a purification process that comprises heating the SWNT-containing felt under oxidizing conditions to remove the amorphous carbon deposits and other contaminating materia
7108841 Method for forming a patterned array of single-wall carbon nanotubes September 19, 2006
This invention relates generally to forming a patterned array of single-wall carbon nanotubes (SWNT). In one embodiment, a nanoscale array of microwells is provided on a substrate; a metal catalyst is deposited in each microwells; and a stream of hydrocarbon or CO feedstock gas is di
7105596 Methods for producing composites of single-wall carbon nanotubes and compositions thereof September 12, 2006
This invention relates generally to a method for producing composites of single-wall carbon nanotubes (SWNTs) and compositions thereof. In one embodiment, the present invention involves a method of producing a composite material that includes a matrix and a carbon nanotube material e
7097820 Continuous fiber of single-wall carbon nanotubes August 29, 2006
This invention relates generally to carbon fiber produced from single-wall carbon nanotube (SWNT) molecular arrays. In one embodiment, the carbon fiber which comprises an aggregation of substantially parallel carbon nanotubes comprises more than one molecular array. Another embodiment of
7087207 Method for forming an array of single-wall carbon nanotubes in an electric field and composition August 8, 2006
This invention relates generally to a forming an array of single-wall carbon nanotubes (SWNT) in an electric field and compositions thereof. In one embodiment, a purified bucky paper of single-wall carbon nanotubes is used as the starting material. Upon oxidative treatment of the bucky
7071406 Array of single-wall carbon nanotubes July 4, 2006
This invention relates generally to forming an array of single-wall carbon nanotubes (SWNT). In one embodiment, a macroscopic molecular array is provided comprising at least about 10.sup.6 single-wall carbon nanotubes in generally parallel orientation and having substantially similar
7067098 Method for forming an array of single -wall carbon nanotubes and compositions thereof June 27, 2006
This invention relates generally to forming an array of single-wall carbon nanotubes (SWNT) and compositions thereof. In one embodiment, a homogeneous population of SWNT molecules is used to produce a substantially two-dimensional array made up of single-walled nanotubes aggregated i
7052666 Method for cutting single-wall carbon nanotubes May 30, 2006
This invention relates generally to cutting single-wall carbon nanotubes (SWNT). In one embodiment, the present invention provides for preparations of homogemeous populations of short carbon nanotube molecules by cutting and annealing (reclosing) the nanotube pieces followed by fract
7048999 Method for producing self-assembled objects comprising single-wall carbon nanotubes and composit May 23, 2006
This invention relates generally to a method for producing self-assembled objects comprising single-wall carbon nanotubes (SWNTs) and compositions thereof. In one embodiment, the present invention involves a three-dimensional structure of derivatized single-wall nanotube molecules th
7048903 Macroscopically manipulable nanoscale devices made from nanotube assemblies May 23, 2006
Macroscopically manipulable nanoscale devices made from nanotube assemblies are disclosed. The article of manufacture comprises a macroscopic mounting element capable of being manipulated or observed in a macroscale environment, and a nanoscale nanotube assembly attached to the mount
7041620 Method for producing a catalyst support and compositions thereof May 9, 2006
This invention relates generally to a method for producing single-wall carbon nanotube (SWNT) catalyst supports and compositions thereof. In one embodiment, SWNTs or SWNT structures can be employed as the support material. A transition metal catalyst is added to the SWNT. In a prefer
7022541 Patterned growth of single-walled carbon nanotubes from elevated wafer structures April 4, 2006
A wafer-scale fabrication approach for manufacturing single-walled carbon nanotube (SWNT) tips is implemented. Catalyst material is selectively placed (e.g., patterned) onto a plurality of prefabricated elevated structures (e.g., silicon tips) on a wafer. SWNTs are grown protruding f
7008604 Method for cutting nanotubes March 7, 2006
This invention relates generally to cutting single-wall carbon nanotubes (SWNT). In one embodiment, the present invention provides for preparation of homogeneous populations of short carbon nanotube molecules by cutting and annealing (reclosing) the nanotube pieces followed by fractionat
6986876 Method for forming composites of sub-arrays of single-wall carbon nanotubes January 17, 2006
This invention relates generally to forming arrays of single-wall carbon nanotubes (SWNT). In one embodiment, the present invention involves forming a macroscopic molecular array of tubular carbon molecules, said method comprising the step of assembling subarrays of up to 10.sup.6 si
6979709 Continuous fiber of single-wall carbon nanotubes December 27, 2005
This invention relates generally to carbon fiber produced from single-wall carbon nanotube (SWNT) molecular arrays. In one embodiment, the present invention involves a macroscopic carbon fiber comprising at least 10.sup.6 signal-wall carbon nanotubes in generally parallel orientation.
6949237 Method for growing single-wall carbon nanotubes utlizing seed molecules September 27, 2005
This invention relates generally to a method for growing single-wall carbon nanotube (SWNT) from seed molecules. The supported or unsupported SWNT seed materials can be combined with a suitable growth catalyst by opening SWNT molecule ends and depositing a metal atom cluster. In one embo
6939525 Method of forming composite arrays of single-wall carbon nanotubes and compositions thereof September 6, 2005
This invention relates generally to forming arrays of single-wall carbon nanotubes (SWNT) and compositions thereof. In one embodiment, the present invention involves forming an array from more than one separately prepared molecular arrays or templates to prepare a composite structure. Th
6936233 Method for purification of as-produced single-wall carbon nanotubes August 30, 2005
This invention relates generally to a single-wall carbon nanotube (SWNT) purification process and more particularly to a purification process that comprises heating the SWNT-containing felt under oxidizing conditions to remove the amorphous carbon deposits and other contaminating materia
6900580 Self-oriented bundles of carbon nanotubes and method of making same May 31, 2005
A field emission device having bundles of aligned parallel carbon nanotubes on a substrate. The carbon nanotubes are oriented perpendicular to the substrate. The carbon nanotube bundles may be up to 300 microns tall, for example. The bundles of carbon nanotubes extend only from regions o
6837928 Electric field orientation of carbon nanotubes January 4, 2005
Carbon nanotubes are implemented in a manner that facilitates their orientation and arrangement for a variety of applications. According to an example embodiment of the present invention, an electric field is used to orient carbon nanotubes along a direction of the electric field (e.g.,
6824755 Method for producing a catalyst support and compositions thereof November 30, 2004
This invention relates generally to a method for producing single-wall carbon nanotube (SWNT) catalyst supports and compositions thereof. In one embodiment, SWNTs or SWNT structures can be employed as the support material. A transition metal catalyst is added to the SWNT. In a preferred
6756026 Method for growing continuous carbon fiber and compositions thereof June 29, 2004
This invention relates generally to a method for growing carbon fiber from single-wall carbon nanotube (SWNT) molecular arrays. The carbon fiber which comprises an aggregation of substantially parallel carbon nanotubes may be produced by growth (elongation) of a suitable seed molecular a
6756025 Method for growing single-wall carbon nanotubes utilizing seed molecules June 29, 2004
This invention relates generally to a method for growing single-wall carbon nanotube (SWNT) from seed molecules. The supported or unsupported SWNT seed materials can be combined with a suitable growth catalyst by opening SWNT molecule ends and depositing a metal atom cluster. In one embo
6749827 Method for growing continuous fiber June 15, 2004
This invention relates generally to a method for growing carbon fiber from single-wall carbon nanotube (SWNT) molecular arrays. In one embodiment, the present invention involves a macroscopic molecular array of at least about 10.sup.6 tubular carbon molecules in generally parallel orient
6683783 Carbon fibers formed from single-wall carbon nanotubes January 27, 2004
A method for purifying a mixture comprising single-wall carbon nanotubes and amorphous carbon contaminate is disclosed. The method includes the steps of heating the mixture under oxidizing conditions sufficient to remove the amorphous carbon, followed by recovering a product comprising
6528020 Carbon nanotube devices March 4, 2003
This invention provides an assembly of novel nanotube devices that can be employed in a variety of applications. In particular, the nanotube devices of the present invention provide a new class of versatile chemical and biological sensors. The present invention describes methods for grow
6401526 Carbon nanotubes and methods of fabrication thereof using a liquid phase catalyst precursor June 11, 2002
Single-walled carbon nanotube (SWNT) probe-tips for atomic force microscopy (AFM) are realized by direct synthesis of SWNTs on silicon pyramids integrated onto AFM cantilevers. The growth of SWNT tips involves dip coating of silicon pyramids with a liquid phase catalyst followed by c
6346189 Carbon nanotube structures made using catalyst islands February 12, 2002
The present invention includes several nanotube structures which can be made using catalyst islands disposed on a substrate (e.g. silicon, alumina, or quartz) or on the free end of an atomic force microscope cantilever. The catalyst islands are capable of catalyzing the growth of car
6232706 Self-oriented bundles of carbon nanotubes and method of making same May 15, 2001
A field emission device having bundles of aligned parallel carbon nanotubes on a substrate. The carbon nanotubes are oriented perpendicular to the substrate. The carbon nanotube bundles may be up to 300 microns tall, for example. The bundles of carbon nanotubes extend only from regions o


 
 
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