US Patent 7976966 - CNT magnetic media

http://www.freepatentsonline.com/7976966.html

This patent teaches an interesting technique to use carbon nanotubes to enhance the maximum possible storage density of magnetic storage material. Claim 1 reads:

1. A magnetic tape, comprising:

a substrate; and

a ribbon of magnetic media layered on said substrate, said magnetic media comprising:

a plurality of magnetic nanoparticles contained within a carbon nanotube; and

a plurality of said carbon nanotubes encapsulated in a matrix.