| Patent application number | Description | Published |
|---|
| 20080318049 | Single-Walled Carbon Nanotube and Aligned Single-Walled Carbon Nanotube Bulk Structure, and Their Production Process, Production Apparatus and Application Use - This invention provides an aligned single-layer carbon nanotube bulk structure, which comprises an assembly of a plurality of aligned single-layer carbon nanotube and has a height of not less than 10 μm, and an aligned single-layer carbon nanotube bulk structure which comprises an assembly of a plurality of aligned single-layer carbon nanotubes and has been patterned in a predetermined form. This structure is produced by chemical vapor deposition (CVD) of carbon nanotubes in the presence of a metal catalyst in a reaction atmosphere with an oxidizing agent, preferably water, added thereto. An aligned single-layer carbon nanotube bulk structure, which has realized high purify and significantly large scaled length or height, its production process and apparatus, and its applied products are provided. | 12-25-2008 |
| 20090186223 | Single-Walled Carbon Nanotubes, Carbon Fiber Aggregate Containing the Single-Walled Carbon Nanotubes, and Method for Producing Those - It relates to high purity single-walled carbon nanotubes having controlled diameter, useful as industrial materials, including high-strength carbon wire rods, particularly uniform single-walled carbon nanotubes having diameter fallen in a range of from 1.0 to 2.0 nm, and a method for producing the same efficiently, in large amount and inexpensively. The single-walled carbon nanotube obtained is characterized in that its diameter is fallen in a range of from 1.0 to 2.0 nm, and an intensity ratio IG/ID between G-band and D-band in a Raman spectrum is 200 or more. Furthermore, those single-walled carbon nanotubes are synthesized by a gas-phase flow CVD method that uses a saturated aliphatic hydrocarbon which is liquid at ordinary temperature as a first carbon source and an unsaturated aliphatic hydrocarbon which is gas at ordinary temperature as a second carbon source. | 07-23-2009 |
| 20090214816 | Aligned Carbon Nanotube Bulk Structure Having Portions Different in Density, Process for Producing The Same and Uses thereof - An aligned carbon nanotube bulk structure having portions different in density of the invention is characterized by being composed of carbon nanotubes aligned in a predetermined direction and having both a high-density portion of 0.2 to 1.5 g/cm | 08-27-2009 |
| 20090232965 | Method and apparatus for producing aligned carbon nanotube aggregate - The present invention provides a method and an apparatus capable of mass-producing an aligned CNT aggregate of a desired height through automatic control of a CVD apparatus according to a growth height of the aligned CNT aggregate. According to the present invention, an aligned carbon nanotube aggregate growing on a substrate is irradiated with a parallel ray, and the size of a resulting shadow is measured with a measurement section using a telecentric optical system, which acts as if it has an infinite focal length, so as to detect, in real time, a growth height of the aligned carbon nanotube aggregate being synthesized, and the synthesis of the aligned carbon nanotube aggregate is terminated when the growth height of the aligned carbon nanotube aggregate reaches a predetermined state. | 09-17-2009 |
| 20090272935 | Aligned Carbon Nanotube Bulk Aggregate, Process for Producing The Same and Uses Thereof - An aligned carbon nanotube bulk aggregate of the invention is characterized by consisting of plural carbon nanotubes aligned in a predetermined direction and having a density of 0.2 to 1.5 g/cm | 11-05-2009 |
| 20090297846 | Double-Walled Carbon Nanotube, Aligned Double-Walled Carbon Nanotube Bulk Structure and Process for Producing the Same - An aligned double-walled carbon nanotube bulk structure composed of plural aligned double-walled carbon nanotubes and having a height of 0.1 μm or more and a double-walled carbon nanotube are produced by chemically vapor depositing (CVD) a carbon nanotube in the presence of a metal catalyst with controlled particle size and thickness, preferably in the presence of moisture. According to this, it is possible to provide a double-walled nanotube which is free from inclusion of the catalyst, has high purity, is easy to control the alignment and growth, is able to achieve the fabrication through the formation of a bulk structure and has excellent electron emission characteristic (particularly, a double-walled carbon nanotube bulk structure) and also to provide a production technology thereof. | 12-03-2009 |
| 20100062157 | MANUFACTURING APPARATUS AND MANUFACTURING METHOD FOR ALINED CARBON NANOTUBES - An apparatus (CVD apparatus ( | 03-11-2010 |
| 20100062229 | Aligned single-walled carbon nanotube aggregate, bulk aligned single-walled carbon nanotube aggregate, powdered aligned single-walled carbon nanotube aggregate, and production method thereof - This invention intends to provide an aligned single-walled CNT aggregate and the like which can be produced easily and has a high specific surface area, in which individual CNTs are aligned and which has excellent shape processability due to low bulk density. The aligned single-walled CNT aggregate of this invention comprises a base material, catalyst particles with a density of 1×10 | 03-11-2010 |
| 20100159222 | ALIGNED CARBON NANOTUBE BULK STRUCTURE HAVING PORTIONS DIFFERENT IN DENSITY - An aligned carbon nanotube bulk structure in which various properties such as density and hardness are controlled depending on the place is provided. | 06-24-2010 |
| 20100196249 | Aligned carbon nanotube bulk aggregate, process for producing the same and uses thereof - An aligned carbon nanotube bulk structure capable of attaining high density and high hardness not found so far. The aligned carbon nanotube bulk structure has a plurality of carbon nanotubes (CNTs) applied with a density-increasing treatment, and having alignment in a predetermined direction, the structure has a degree of anisotropy of 1:3 or more between the direction of alignment and the direction vertical to the direction of alignment, and the intensity by irradiating X-rays along the direction of alignment is higher than the intensity by irradiating X-rays from the direction vertical to the direction of alignment at a (002) peak in X-ray diffraction data, and the degree of alignment thereof satisfies predetermined conditions. | 08-05-2010 |
| 20100196600 | APPARATUS AND METHOD FOR PRODUCING ALIGNED CARBON-NANOTUBE AGGREGATES - An apparatus of the present invention for producing an aligned carbon-nanotube aggregate is an apparatus for producing an aligned carbon-nanotube aggregate by synthesizing the aligned carbon-nanotube aggregate on a base material having a catalyst on a surface thereof, the apparatus including: a formation unit that processes a formation step of causing an environment surrounding the catalyst to be an environment of a reducing gas and heating at least either the catalyst or the reducing gas; a growth unit that processes a growth step of synthesizing the aligned carbon-nanotube aggregate by causing the environment surrounding the catalyst to be an environment of a raw material gas and by heating at least either the catalyst or the raw material gas; and a transfer unit that transfers the base material at least from the formation unit to the growth unit. Thus provided is a production apparatus and a production method that are capable of improving efficiency in the production of aligned CNT aggregates by preventing a decrease in production volume and deterioration in quality of aligned CNT aggregates in serial production and by making it easy to increase the size of the apparatus. | 08-05-2010 |
| 20110008617 | Aligned single-walled carbon nanotube aggregate, bulk aligned single-walled carbon nanotube aggregate, and powdered aligned single-walled carbon nanotube aggregate - This invention provides an aligned single-walled CNT aggregate comprising a substrate, fine particles of iron catalyst with a density of 1×10 | 01-13-2011 |
| 20110117365 | SINGLE-WALLED CARBON NANOTUBE AND ALIGNED SINGLE-WALLED CARBON NANOTUBE BULK STRUCTURE, AND THEIR PRODUCTION PROCESS, PRODUCTION APPARATUS AND APPLICATION USE - This invention provides an aligned single-layer carbon nanotube bulk structure, which comprises an assembly of a plurality of aligned single-layer carbon nanotube and has a height of not less than 10 μm, and an aligned single-layer carbon nanotube bulk structure which comprises an assembly of a plurality of aligned single-layer carbon nanotubes and has been patterned in a predetermined form. This structure is produced by chemical vapor deposition (CVD) of carbon nanotubes in the presence of a metal catalyst in a reaction atmosphere with an oxidizing agent, preferably water, added thereto. An aligned single-layer carbon nanotube bulk structure, which has realized high purify and significantly large scaled length or height, its production process and apparatus, and its applied products are provided. | 05-19-2011 |
