Magnetic storage device and manufacturing method thereof
AssigneeSharp Kabushiki Kaisha
InventorsKenji Ohta, Junichiro Nakayama, Tetsurou Muramatsu
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Abstract
A magnetic storage device and a manufacturing method thereof, the magnetic storage device having grooves formed on a substrate, each of the grooves having a magnetic film formed therein. Since the magnetic head does not contact directly with the magnetic film, reliability of the magnetic disk increases. Moreover, the reproduced output of the magnetic head increases since the space between the magnetic head and the magnetic disk can be reduced. Accordingly, high-density recording becomes possible.
Claims18
A magnetic storage device on and from which recording and reproduction of information are carried out using a magnetic head, said magnetic storage device comprising:
- a substrate having grooves formed in a surface thereof;
- and
- a magnetic film formed in each of the grooves,
- film thickness of the magnetic film being set to be less than a depth of each of the grooves,
- the information being recorded on the magnetic film.
A magnetic storage device on and from which recording and reproduction of information are carried out using a magnetic head, said magnetic storage device consisting essentially of:
- a substrate having grooves formed in a surface thereof;
- and
- a magnetic film formed in each of the grooves and on the lands located between the grooves,
- the information being recorded on the magnetic film formed in each of the grooves.
Dependencies are inferred from the claim text.