Patent ID: 7364709
Filing Date: 2008-04-29
Classification: B01J,B82Y,C01B

Abstract:
1. A manufacturing apparatus for a carbon nanotube, comprising: at least two electrodes whose forwardmost end portions are opposed to each other; a power supply for applying a voltage between the electrodes in order to generate discharge plasma in a discharge area between the electrodes; and plural magnets configured to form a magnetic field in a generation area of the discharge plasma by generating a magnetic field from a magnetic pole surface of each of the plural magnets, characterized in that: the plural magnets are arranged to have the magnetic pole surfaces thereof opposed to one imaginary axis within a space; and of the two electrodes, at least a part of one electrode is located in an area surrounded by: an imaginary plane formed by connecting end portions of the magnetic pole surfaces of the plural magnets on one side in a direction of the imaginary axis; an imaginary plane formed by connecting end portions thereof on the other side; and the magnetic pole surfaces of the plural magnets, and the forwardmost end portion of the other electrode is located in an area outside the area surrounded by the two imaginary planes and the magnetic pole surfaces.