MAGNETIC RECORDING DEVICE
First Claim
1. A magnetic recording device comprising:
- a magnetic recording head including;
a main magnetic pole having a medium facing surface and a main magnetic pole side surface intersecting the medium facing surface, a main magnetic pole including a soft magnetic material, and configured to generate a recording magnetic field;
a shield having a shield side surface facing the main magnetic pole side surface;
a stacked structure provided between the main magnetic pole and the shield,the stacked structure including;
a first magnetic layer;
a second magnetic layer; and
an intermediate layer provided between the first magnetic layer and the second magnetic layer and including a nonmagnetic material; and
a magnetic recording medium including;
a backing layer including a soft magnetic material and forming a magnetic circuit together with the main magnetic pole and the shield; and
a magnetic recording layer provided between the backing layer and the magnetic recording head, having a major surface, the major surface facing the medium facing surface and the shield, and subjected to perpendicular magnetic recording by the recording magnetic field,a first distance along a direction perpendicular to the major surface between an end portion of the medium facing surface on a side of the stacked structure and the backing layer being twice or more of a second distance along a direction perpendicular to the main magnetic pole side surface between the main magnetic pole side surface and the shield side surface.
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Accused Products
Abstract
According to one embodiment, a magnetic recording device includes a magnetic recording head and a magnetic recording medium. The magnetic recording head includes a main magnetic pole, a shield and a stacked structure. The main magnetic pole has a medium facing surface and a main magnetic pole side surface. The shield has a shield side surface. The stacked structure is provided between the main magnetic pole and shield, and includes first and second magnetic layers, and an intermediate layer. The magnetic recording medium includes a backing layer and a magnetic recording layer. A distance between an end portion of the medium facing surface on a side of the stacked structure and the backing layer is twice or more of a distance between the main magnetic pole side surface and the shield side surface.
34 Citations
20 Claims
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1. A magnetic recording device comprising:
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a magnetic recording head including; a main magnetic pole having a medium facing surface and a main magnetic pole side surface intersecting the medium facing surface, a main magnetic pole including a soft magnetic material, and configured to generate a recording magnetic field; a shield having a shield side surface facing the main magnetic pole side surface; a stacked structure provided between the main magnetic pole and the shield, the stacked structure including; a first magnetic layer; a second magnetic layer; and an intermediate layer provided between the first magnetic layer and the second magnetic layer and including a nonmagnetic material; and a magnetic recording medium including; a backing layer including a soft magnetic material and forming a magnetic circuit together with the main magnetic pole and the shield; and a magnetic recording layer provided between the backing layer and the magnetic recording head, having a major surface, the major surface facing the medium facing surface and the shield, and subjected to perpendicular magnetic recording by the recording magnetic field, a first distance along a direction perpendicular to the major surface between an end portion of the medium facing surface on a side of the stacked structure and the backing layer being twice or more of a second distance along a direction perpendicular to the main magnetic pole side surface between the main magnetic pole side surface and the shield side surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification