Hitachi has announced that they have developed the world’s smallest read-head technology for hard disk drives, which is expected to quadruple current storage capacity limits to four terabytes on a desktop hard drive and one terabyte on a notebook hard drive.

The revolutionary new technology has been made possible by Hitachi developing the worlds smallest reading heads, which are about half the size of the current hard drives. However as with the previous post on the Western Digital drives reaching 3 terabytes, it will be a while before they are released commerically. Current projections are for 2011.

For a more detailed report, read the press release on the Hitachi site.

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