Patent application number | Description | Published |
20120006784 | TRANSMISSION ELECTRON MICROSCOPE GRID AND METHOD FOR MAKING SAME - The present disclosure relates to a method for making a transmission electron microscope grid. The method includes: (a) providing a substrate with a graphene layer on a surface of the substrate; (b) applying a carbon nanotube film structure to cover the graphene layer; (c) removing the substrate, to obtain a graphene layer-carbon nanotube film composite structure; and (d) placing the graphene layer-carbon nanotube film composite structure on a grid. | 01-12-2012 |
20120250464 | THERMOACOUSTIC DEVICE - A thermoacoustic device includes a sound wave generator and a signal input device. The sound wave generator includes a carbon film. The carbon film includes at least one carbon nanotube layer and at least one graphene layer stacked on each other. The signal input device inputs signals to the sound wave generator. | 10-04-2012 |
20120250901 | THERMOACOUSTIC DEVICE - A thermoacoustic device includes a substrate, at least two sound wave generators and at least two signal input devices. The substrate has at least two surfaces. Each of the at least two sound wave generators is located on each of the at least two surfaces. At least one of the at least two sound wave generator includes a carbon film. The carbon film includes at least one carbon nanotube layer and at least one graphene layer stacked with each other. The at least two signal input devices are configured to input signals to the at least two sound wave generator separately. | 10-04-2012 |
20120250902 | THERMOACOUSTIC DEVICE - A thermoacoustic device includes a substrate, a sound wave generator and a signal device. The substrate has a net structure and includes a number of first wires and a number of second wires. The first wires and the second wires are crossed with each other. Each of the first wires includes a composite wire. The composite wire includes a carbon nanotube wire structure and a coating layer wrapping the carbon nanotube wire structure. The sound wave generator is located on a surface of the substrate and includes a carbon film. The signal input device is configured to input signals to the sound wave generator. | 10-04-2012 |
20120250903 | THERMOACOUSTIC DEVICE - A thermoacoustic device includes a carbon nanotube composite structure, a sound wave generator and a signal input device. The carbon nanotube composite structure includes a carbon nanotube structure and a matrix. The matrix is located on a surface of the carbon nanotube structure. The sound wave generator is located on a surface of the carbon nanotube composite structure and insulated from the carbon nanotube structure via the coating layer. The sound wave generator includes a carbon film. The signal input device is configured to input signals to the sound wave generator. | 10-04-2012 |
20120250904 | THERMOACOUSTIC DEVICE - A thermoacoustic device includes a substrate, at least two sound wave generators and at least two signal input devices. The substrate has at least two surfaces. Each of the at least two sound wave generators is located on each of the at least two surfaces. At least one of the at least two sound wave generator includes a carbon film. The carbon film includes at least one carbon nanotube layer and at least one graphene layer stacked with each other. The at least two signal input devices are configured to input signals to the at least two sound wave generator in a one by one manner. | 10-04-2012 |
20120250905 | THERMOACOUSTIC DEVICE - A thermoacoustic device includes a substrate, a sound wave generator and a signal device. The substrate has a net structure and includes a number of first wires and a number of second wires. The first wires and the second wires are crossed with each other. Each of the first wires includes a composite wire. The composite wire includes a carbon nanotube wire structure and a coating layer wrapping the carbon nanotube wire structure. The sound wave generator is located on a surface of the substrate and includes a graphene layer including at least one graphene. The signal input device is configured to input signals to the sound wave generator. | 10-04-2012 |
20120250906 | THERMOACOUSTIC DEVICE - A thermoacoustic device includes a carbon nanotube composite structure, a sound wave generator and a signal input device. The carbon nanotube composite structure includes a carbon nanotube structure and a matrix. The matrix is located a surface of the carbon nanotube structure. The sound wave generator is located on a surface of the carbon nanotube composite structure and insulated from the carbon nanotube structure via the matrix. The sound wave generator includes a graphene layer including at least one graphene. The signal input device is configured to input signals to the sound wave generator. | 10-04-2012 |
20120250907 | THERMOACOUSTIC DEVICE - A thermoacoustic device includes a sound wave generator and a signal input device. The sound wave generator includes a graphene layer. The graphene layer includes at least one graphene. The signal input device inputs signals to the sound wave generator. | 10-04-2012 |
20120250908 | THERMOACOUSTIC DEVICE - A thermoacoustic device includes a sound wave generator and a signal input device. The sound wave generator includes a composite structure. The composite structure includes a carbon nanotube film structure and a graphene film. The carbon nanotube film structure includes a number of carbon nanotubes and micropores. The graphene film is located on a surface of the carbon nanotube film structure, and covers the micropores. | 10-04-2012 |
20120251764 | GRAPHENE/CARBON NANOTUBE COMPOSITE STRUCTURE - A graphene/carbon nanotube composite structure includes a carbon nanotube film structure and a graphene film. The carbon nanotube film structure includes a number of carbon nanotubes. The carbon nanotubes form micropores. The graphene film is located on a surface of the carbon nanotube film structure. The graphene film covers the micropores. | 10-04-2012 |
20120298289 | METHOD FOR MAKING GRAPHENE/CARBON NANOTUBE COMPOSITE STRUCTURE - The present disclosure relates to a method for making a graphene/carbon nanotube composite structure. In the method, at least one graphene film is located on a substrate. At least one carbon nanotube layer is combined with the at least one graphene film located on the substrate to form a substrate/graphene/carbon nanotube composite structure. The at least one graphene film is in contact with the at least one carbon nanotube layer in the substrate/graphene/carbon nanotube composite structure. The substrate is removed from the substrate/graphene/carbon nanotube composite structure, thereby forming a graphene/carbon nanotube composite structure. | 11-29-2012 |
20120298618 | METHOD FOR MAKING GRAPHENE/CARBON NANOTUBE COMPOSITE STRUCTURE - A method for making a graphene/carbon nanotube composite structure includes providing a metal substrate including a first surface and a second surface opposite to the first surface, growing a graphene film on the first surface of the metal substrate by a CVD method, providing at least one carbon nanotube film structure on the graphene film, and combining the at least one carbon nanotube film structure with the graphene film, and combining the polymer layer with the at least one carbon nanotube film structure and the graphene film, and forming a plurality of stripped electrodes by etching the metal substrate from the second surface. | 11-29-2012 |
20120298619 | METHOD FOR MAKING GRAPHENE/CARBON NANOTUBE COMPOSITE STRUCTURE - A method for making a graphene/carbon nanotube composite structure includes providing a metal substrate including a first surface and a second surface opposite to the first surface, growing a graphene film on the first surface of the metal substrate by a CVD method, providing at least one carbon nanotube film structure on the graphene film, and combining the at least one carbon nanotube film structure with the graphene film, coating a polymer layer on the at least one carbon nanotube film structure, and combining the polymer layer with the at least one carbon nanotube film structure and the graphene film, and forming a plurality of stripped electrodes by etching the metal substrate from the second surface. | 11-29-2012 |
20120298620 | METHOD FOR MAKING GRAPHENE COMPOSITE STRUCTURE - A method for making a graphene composite structure includes providing a metal substrate including a first surface and a second surface opposite to the first surface, growing a graphene film on the first surface of the metal substrate by a CVD method, providing a polymer layer on the graphene film and combining the polymer layer with the graphene film, and forming a plurality of stripped electrodes by etching the metal substrate from the second surface. | 11-29-2012 |
20120298623 | METHOD FOR MAKING THERMOACOUSTIC ELEMENT - The present disclosure relates to a method for making a thermoacoustic element. In the method, a graphene film is arranged on a metal substrate. A nonmetal substrate is stacked with the graphene film located on the metal substrate to form a laminate structure. The graphene film is sandwiched between the nonmetal substrate and the metal substrate. The metal substrate is removed from the stacked structure. A number of through-holes are formed in the nonmetal substrate. The graphene film is exposed through the plurality of through-holes. | 11-29-2012 |
20130264011 | METHOD FOR MAKING STRIP SHAPED GRAPHENE LAYER - A method for making a strip shaped graphene layer includes the following steps. First, a graphene film is located on a surface of a substrate is provided. Second, a carbon nanotube structure is disposed on the graphene film. The carbon nanotube structure includes a plurality of carbon nanotube segments and a number of strip-shaped gaps between the adjacent carbon nanotube segments. Third, the graphene film exposed by the strip-shaped gaps is removed by applying a voltage to the carbon nanotube segments and heating the substrate. | 10-10-2013 |
20130264192 | METHOD FOR MAKING STRIP SHAPED GRAPHENE LAYER - A method for making a strip shaped graphene layer includes the following steps. First, a graphene film located on a surface of a substrate is provided. Second, a drawn carbon nanotube film composite is disposed on the graphene film. The drawn carbon nanotube film composite includes a polymer material and a drawn carbon nanotube film structure disposed in the polymer material. The drawn carbon nanotube film structure includes a number of carbon nanotube segments and a number of strip-shaped gaps between the adjacent carbon nanotube segments. Third, the polymer material is partly removed to expose the carbon nanotube segments. Fourth, the carbon nanotube segments and the graphene film covered by the plurality of carbon nanotube segments are etched. Fifth, the remained polymer material is removed to obtain the strip shaped graphene layer. | 10-10-2013 |
20130264193 | METHOD FOR MAKING STRIP SHAPED GRAPHENE LAYER - A method for making a strip shaped graphene layer includes the following steps. First, a graphene film is located on a surface of a substrate is provided. Second, a carbon nanotube structure is disposed on the graphene film. The carbon nanotube structure includes a plurality of carbon nanotube segments and a plurality of strip-shaped gaps between the adjacent carbon nanotube segments. Third, the graphene film exposed by the strip-shaped gaps is removed by a reactive ion etching method. | 10-10-2013 |
20130264307 | METHOD FOR MAKING STRIP SHAPED GRAPHENE LAYER - A method for making a strip shaped graphene layer includes the steps of: first, a graphene film is located on a surface of a substrate is provided. Second, a drawn carbon nanotube film composite is disposed on the graphene film. The drawn carbon nanotube film composite includes a polymer material and a drawn carbon nanotube film structure disposed in the polymer material. The drawn carbon nanotube film structure includes a plurality of carbon nanotube segments and a plurality of strip-shaped gaps between the adjacent carbon nanotube segments. Third, the polymer material is partly removed to expose the plurality of carbon nanotube segments. Forth, the plurality of carbon nanotube segments and the graphene film covered by the plurality of carbon nanotube segments is etched. Fifth, the remained polymer material is removed to obtain the strip shaped graphene layer. | 10-10-2013 |
20130264748 | METHOD FOR MAKING STRIP SHAPED GRAPHENE LAYER - A method for making a strip shaped graphene layer includes the following steps. First, a graphene film is located on a surface of a substrate is provided. Second, a carbon nanotube structure is disposed on the graphene film. The carbon nanotube film structure includes a number of carbon nanotubes and a number of strip-shaped gaps between the adjacent carbon nanotubes. Third, the graphene film exposed by the strip-shaped gaps is removed by an electron beam bombardment method. | 10-10-2013 |
20130266729 | METHOD FOR MAKING STRIP SHAPED GRAPHENE LAYER - A method for making a strip shaped graphene layer includes the following steps. First, a carbon nanotube structure on a surface of a metal substrate is provided. The carbon nanotube structure includes at least one drawn carbon nanotube film. The at least one drawn carbon nanotube film includes carbon nanotube segments substantially parallel to each other and separated from each other by a strip-shaped gap. Second, a catalyst layer is disposed on the carbon nanotube structure, and parts of the catalyst layer are contacted to the surface of the substrate in the strip-shaped gaps. Third, the carbon nanotube structure is removed to obtain s plurality of catalyst strips on the surface of the substrate. Fourth, graphene strips are grown on the number of catalyst strips. Third, the metal substrate is annealed to obtain the strip shaped graphene layer. | 10-10-2013 |
20130266738 | METHOD FOR MAKING STRIP SHAPED GRAPHENE LAYER - A method for making a strip shaped graphene layer includes the following steps. First, a carbon nanotube structure on a surface of a metal substrate is provided. The carbon nanotube structure includes at least one drawn carbon nanotube film. The at least one drawn carbon nanotube film includes a number of carbon nanotube segments, each of the number of carbon nanotube segments being substantially parallel to each other and separated from each other by a strip-shaped gap. Second, carbon ions are implanted into the metal substrate through the strip-shaped gaps. Third, the metal substrate is annealed to obtain the strip shaped graphene layer. | 10-10-2013 |
20130331270 | SUPERCONDUCTING WIRE - A superconducting wire includes a linear superconductor and a carbon nanotube structure. The carbon nanotube structure is located on the linear superconductor. The carbon nanotube structure includes a number of carbon nanotubes joined end to end by van der Waals attractive force between and arranged helically along an axial direction of the linear superconductor | 12-12-2013 |
20130331271 | SUPERCONDUCTING WIRE - A superconducting wire includes a superconductor layer and a carbon nanotube layer. The superconductor layer and the carbon nanotube layer are stacked on each other and rolled to form the superconducting wire. Thus, the superconductor layer and the carbon nanotube layer are simultaneously rolled and alternately stacked on each other. | 12-12-2013 |
20130331273 | METHOD FOR MAKING SUPERCONDUCTING WIRE - A method for making superconducting wire is provided. A drawn carbon nanotube film is pulled out from a carbon nanotube array. The drawn carbon nanotube film is placed spaced from and opposite to a number of superconducting preforms on a carrier. The superconducting preforms are moved from the carrier onto the drawn carbon nanotube film by applying an electric field between the drawn carbon nanotube film and the carrier. A composite wire is made by twisting the drawn carbon nanotube film with the superconducting preforms thereon. Finally, the composite wire is sintered. | 12-12-2013 |
20130331274 | METHOD FOR MAKING SUPERCONDUCTING WIRE - A method for making superconducting wire is provided. A number of superconducting preforms is formed on a carrier. A carbon nanotube layer is placed spaced from and opposite to the carrier. The superconducting preforms are moved from the carrier onto the carbon nanotube layer by applying an electric field between the carbon nanotube layer and the carrier. A composite wire is made by treating the carbon nanotube layer with the superconducting preforms thereon. Finally, the composite wire is sintered. | 12-12-2013 |
20140137397 | METHOD FOR MAKING THERMOACOUSTIC DEVICE - A method for making thermoacoustic device includes following steps. A silicon substrate having a first surface and second surface opposite to the first surface is provided. The first surface is patterned by forming a plurality of grooves substantially oriented along a first direction, wherein the plurality of grooves is spaced from each other, and a bulge is formed between each two adjacent grooves. An insulating layer is coated on the patterned surface. A first electrode and a second electrode are formed on the insulating layer, wherein the first electrode and the second electrode are spaced from each other. A carbon nanotube structure is applied on the insulating layer, wherein the carbon nanotube structure is electrically connected to the first electrode and the second electrode, the carbon nanotube structure is suspended above the plurality of grooves. | 05-22-2014 |
20140137398 | METHOD FOR MAKING THERMOACOUSTIC DEVICE ARRAY - A method for making a thermoacoustic device array includes the following step. A substrate having a surface is provided. The surface defines a grid having a number of cells. A number of recesses are defined on each of the cells. The recesses are parallel with and spaced from each other. A first electrode and a second electrode are formed on each of the cells. The first electrode is spaced from the second electrode, and one of the recesses is located between the first electrode and the second electrode. A sound wave generator is applied on the substrate and electrically connected to the first electrode and the second electrode. The sound wave generator is suspended over the recesses. The sound wave generator is separated according to the cells. | 05-22-2014 |
20140140545 | THERMOACOUSTIC DEVICE - A thermoacoustic device includes a substrate, a sound wave generator, an insulating layer, a first electrode and a second electrode. The first electrode and the second electrode are spaced from each other and electrically connected to the sound wave generator. The substrate includes a first surface and a second surface opposite to the first surface. The first surface defines a plurality of grooves, and a bulge is formed between the adjacent two grooves. The insulating layer is located on the first surface, and continuously attached on the grooves and the bulge. The sound wave generator is located on the insulating layer. The sound wave generator defines a first portion and a second portion. The first portion is suspended on the grooves. The second portion is attached on the bulge. | 05-22-2014 |
20140140546 | EARPHONE - An earphone includes a housing and a thermoacoustic device. The housing has a hollow structure. The thermoacoustic device is disposed in the housing. The thermoacoustic device includes a substrate, a sound wave generator, a first electrode and a second electrode. The first electrode and the second electrode are spaced from each other and electrically connected to the sound wave generator. The substrate includes a first surface and a second surface opposite to the first surface. The first surface defines a number of recesses parallel with and spaced from each other. A depth of each of the recesses ranges from about 100 micrometers to about 200 micrometers. The sound wave generator is located on the first surface of the substrate. The sound wave generator includes a carbon nanotube structure that is suspended over the recesses. | 05-22-2014 |
20140140550 | THERMOACOUSTIC DEVICE ARRAY - A thermoacoustic device array includes a substrate and a plurality of thermoacoustic device units located on a surface of the substrate. The substrate defines a number of recesses on the surface, and the recesses are spaced from and parallel with each other. Each thermoacoustic device unit includes a sound wave generator, a first electrode and a second electrode. The first electrode and the second electrode are spaced from each other and electrically connected to the sound wave generator. The sound wave generator is located on the surface and suspended over the recesses. At least one of the recesses is located between the first electrode and the second electrode, and one portion of the sound wave generator that is between the first electrode and the second electrode is suspended over the at least one of the recesses. | 05-22-2014 |
20140140564 | EARPHONE - An earphone includes a loudspeaker, a signal process, an audio signal input port, and a driving port. The loudspeaker includes a thermoacoustic device disposed in a housing. The signal processor is electrically connected to the loudspeaker to provide signal to the loudspeaker. The audio input port is electrically connected to the signal processor to provide audio signal. The driving port is electrically connected to the signal processor to provide driving signal. The thermoacoustic device includes a substrate, and the substrate defines a number of grooves, a sound wave generator is suspended on the grooves. | 05-22-2014 |