The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 2004
Filed:
Jun. 15, 2001
Avetik R. Harutyunyan, State College, PA (US);
Leonid Grigorian, Arvada, CO (US);
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An apparatus for the production of elongated carbonaceous article includes a chamber having at least one heating element, a catalyst and a device for generating a magnetic field in proximity to or around the catalyst. In operation, a carbon-containing precursor is introduced to the chamber to contact the catalyst with a sufficient amount of heat to cause the deposition of carbon on the catalyst. Continual deposition of carbon over time forms elongated carbon structures, such as carbon fibers and carbon nanotubes. By operating the device to magnetically confine the catalyst during the formation of the carbon structures, migration of catalyst is reduced or prevented thereby minimizing contaminants in the produced products and improving the useful life of the catalyst.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile