US Patent 7687160 - Magnetic storage with CNT material

http://www.freepatentsonline.com/7687160.html

This patent teaches iron particles encapsulated in carbon nanotubes forming an ultrahigh resolution magnetic storage device. Claim 1 reads:

1. A magnetic storage medium, comprising:

a substrate; and

a data layer on top of said substrate, said data layer comprising:

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

a plurality of said carbon nanotubes encapsulated in a matrix.