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Inventor: Ajayan; Pulickel M.
Address: Tokyo, JP
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5641466 |
Method of purifying carbon nanotubes |
June 24, 1997 |
| A mixture of carbon nanotubes and impurity carbon materials, which include carbon nanoparticles and may possibly include amorphous carbon, is purified into carbon nanotubes of high purity by utilizing a significant difference in oxidizability between the nanotubes and the nanoparticles. |
| 5457343 |
Carbon nanotubule enclosing a foreign material |
October 10, 1995 |
| The invention provides a nanometer sized carbon tubule enclosing a foreign material except for carbon. The carbon tubule comprises a plurality of tubular graphite monoatomic sheets coaxially arranged. The foreign material is introduced through a top portion of the carbon tubule. The |
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