Patent application number | Description | Published |
20080213138 | Production Method and Production Device for Carbon Nano Structure - A material gas and a catalyst are introduced through a material supplying tube path and a catalyst supplying tube path together with a carrier gas into a reactor equipped on its outer periphery with a heat applicator for thermally decomposing the material gas. The reactor has a convention regulator fitted to the discharge end of the catalyst supplying tube path. The convection regulator covers an edge side of the reactor to regulate gas flow in the reactor so that the flow does not reach the edge side. Due to this, a convection state can be efficiently produced in a reaction region. Consequently, it becomes possible to prevent contamination defect caused by accumulation/adherence of concretion of catalyst, which was generated by aggregation of cooled catalyst in the low-temperature region of the reactor and a decomposition product of the material gas. Thus the efficiency of carbon nanostructure production can be improved. | 09-04-2008 |
20100074833 | Catalyst Body For Production of Brush-Shaped Carbon Nanostructure, Process for Producing Catalyst Body, Brush-Shaped Carbon Nanostructure, and Process for Producing the Same - It is intended to highly efficiently produce a high-density brush-shaped carbon nanostructure useful in the production of CNT assembly, such as rope-shaped CNTs, and provide a catalyst body for production of brush-shaped carbon nanostructure that enables the production. The catalyst body for production of brush-shaped carbon nanostructure is one comprising a substrate ( | 03-25-2010 |
20100226848 | Catalyst for Carbon Nanostructure Growth, Process for Producing Carbon Nanostructure, Raw-Material Gas and Carrier Gas for Producing the Same, and Apparatus for Producing the Same - It is the purpose of this invention to present a process for producing carbon nanostructure in which the mechanism of continuous carbon nanostructure growth can be optimized and a high-quality carbon nanostructure can be produced, a catalyst for carbon nanostructure growth which is for use in the production, a raw-material gas and a carrier gas for producing the same, and an apparatus for producing the same. The process for carbon nanostructure production, in which the length of the nanostructure can be continuously controlled comprises feeding a carrier gas and a raw-material gas to a reaction chamber ( | 09-09-2010 |
20100291297 | METHOD FOR FORMING CATALYST LAYER FOR CARBON NANOSTRUCTURE GROWTH, LIQUID FOR CATALYST LAYER FORMATION, AND PROCESS FOR... - This invention provides a method for forming a catalyst layer for carbon nanostructure growth, which can eliminate the influence of water in a liquid for catalyst layer formation, can grow homogeneous and highly oriented carbon nanostructures over the whole area of a substrate and can realize mass production of the carbon nanostructures, and a liquid for catalyst layer formation for use in the method, and a process for producing carbon nanostructures using the catalyst layer formed by the method. The catalyst layer for use in the production of CNTs is formed by preparing a catalyst metal salt solution of a catalyst metal-containing metal compound (a catalyst metal salt) dispersed or dissolved in a solvent having an ample wettability towards the substrate and coating the catalyst metal salt solution onto the substrate to a form a thin film. The thin film is then heat treated to form a catalyst layer. The substrate with the dried catalyst layer formed thereon is introduced into a carbon nanostructure synthetic device, and CNTs are grown by a thermal CVD method. | 11-18-2010 |
20100303675 | Method and apparatus for high-efficiency synthesis of carbon nanostructure, and carbon nanostructure - Developed is high-efficiency synthesis method and apparatus capable of promoting the initial growth of carbon nanostructure by eliminating the initial fluctuation time and rising time in raw gas flow quantity. | 12-02-2010 |
20110178776 | EXCESSIVE NOISE RATIO DERIVING DEVICE, NOISE FIGURE DERIVING DEVICE, METHOD, PROGRAM, AND RECORDING MEDIUM - One of the objects of the present invention is to precisely obtain the noise figure (NF) of a receiver. A noise figure deriving device includes a first NF deriving unit that derives a first noise figure, which is a noise figure when a predetermined receiver-side pin pin | 07-21-2011 |
20110318256 | Method of Continuously Synthesizing Oriented Carbon Nanotubes and Apparatus for Continuously Synthesizing Same - A method and apparatus for continuously synthesizing oriented carbon nanotubes, with which oriented carbon nanotubes can be stably synthesized in large quantities, is presented. | 12-29-2011 |
20130266764 | CARBON-BASED FINE STRUCTURE ARRAY, AGGREGATE OF CARBON-BASED FINE STRUCTURES, USE THEREOF AND METHOD FOR PREPARATION THEREOF - An aggregate of carbon-based fine structures in which a plurality of carbon-based fine structures are collected, wherein respective carbon-based fine structures are oriented in the same direction. The above aggregate of carbon-based fine structures is an aggregate of a plurality of carbon-based fine structures in a state they are pulled by one another with strong interaction, and has such a length that allows the improvement of the handeability and workability thereof. | 10-10-2013 |