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US 8,298,690 B2Granted
Magnetic recording medium, method and apparatus for manufacturing magnetic recording apparatus
AssigneeKabushiki Kaisha Toshiba
InventorsHiroyuki Hieda, Kazuto Kashiwagi, Akira Kikitsu, Yousuke Isowaki, Yoshiyuki Kamata
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Abstract
A magnetic recording medium includes a disk substrate, and recording cells arrayed on the disk substrate in a track direction, the recording cells includes a ferromagnetic pattern and a magnetic pattern formed on one of two sidewalls of the ferromagnetic pattern in the track direction and having a lower crystalline magnetic anisotropy constant Ku than that of the ferromagnetic pattern.
Claims9
A magnetic recording medium comprising:
- a disk substrate;
- and
- recording cells arrayed on the disk substrate in a track direction,
- each recording cell comprising a ferromagnetic pattern and a magnetic pattern formed in direct contact with one, but not the other, of two sidewalls of the ferromagnetic pattern in the track direction and having a lower crystalline magnetic anisotropy constant Ku than that of the ferromagnetic pattern,
- wherein the recording cells are surrounded by a gap or a non-magnetic material.
2 more elements
A magnetic recording medium comprising:
- a disk substrate;
- and
- recording cells arrayed on the disk substrate in a track direction with a gap or non-magnetic material provided between adjacent recording cells,
- each recording cell comprising a ferromagnetic pattern and a magnetic pattern formed in direct contact with only one of two sidewalls of the ferromagnetic pattern, the magnetic pattern having a lower crystalline magnetic anisotropy constant Ku than that of the ferromagnetic pattern.
1 more element
Dependencies are inferred from the claim text.