Perpendicular magnetic recording head and magnetic disk apparatus
First Claim
Patent Images
1. A perpendicular magnetic recording head comprising:
- a main pole which generates a recording magnetic field; and
a side shield magnetically spaced from the main pole in a cross-track direction, wherein a point on a trailing edge of the side shield which is closest to the main pole is positioned on a leading side of a trailing edge of the main pole.
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Abstract
According to one embodiment, a perpendicular magnetic recording head includes a main pole which generates a recording magnetic field, a return pole which forms a closed magnetic circuit for the recording magnetic field, and a side shield magnetically spaced from the main pole in a cross-track direction in which a point on a trailing edge of the side shield which is closest to the main pole is positioned on a leading side of a trailing edge of the main pole.
72 Citations
11 Claims
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1. A perpendicular magnetic recording head comprising:
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a main pole which generates a recording magnetic field; and
a side shield magnetically spaced from the main pole in a cross-track direction, wherein a point on a trailing edge of the side shield which is closest to the main pole is positioned on a leading side of a trailing edge of the main pole. - View Dependent Claims (2, 10)
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3. A perpendicular magnetic recording head comprising:
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a main pole which generates a recording magnetic field;
a return pole which forms a closed magnetic circuit for the recording magnetic field; and
a side shield magnetically spaced from the main pole in a cross-track direction, wherein a point on a trailing edge of the side shield which is closest to the main pole is positioned on a leading side of a trailing edge of the main pole. - View Dependent Claims (4, 5, 6, 7, 8, 9, 11)
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Specification