Method and device for the production of carbon nanotubes
Patent 5482601 Issued on January 9, 1996. Estimated Expiration Date: 
January 13, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 13, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesElectric arc process for making fullerenes Carbon fibers and method for their production Patent #: 5424054 InventorsAssigneeApplicationNo. 372130 filed on 01/13/1995US Classes:204/173, Carbon422/186.26With electrode moving meansExaminersPrimary: Niebling, John F.Assistant: Mayekar, Kishor Attorney, Agent or FirmForeign Patent References
International ClassC01B 031/00Foreign Application Priority Data1994-01-28 JPAbstractCarbon nanotubes are produced by successively repositioning an axially extending rod-like carbonaceous anode relative to a cathode surface such that a tip end surface of the anode successively faces on different portions of the cathode surface while impressing a direct current voltage therebetween, so that an arc discharge occur with the simultaneous formation of carbonaceous deposits containing carbon nanotubes on each of the portions of the cathode surface. The carbonaceous deposits are scraped and collected. A device for carrying out the above method includes a driving member for displacing the cathode surface relative to the anode.Other References
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