MAGNETIC RECORDING HEAD AND MAGNETIC RECORDING AND REPRODUCING DEVICE
First Claim
1. A magnetic recording head, comprising:
- a magnetic pole; and
a shield opposing the magnetic pole,the magnetic recording head recording information in a magnetic recording medium by shingled magnetic recording,the magnetic pole having a shield-opposing surface opposing the shield,the shield-opposing surface including a first portion and a second portion,a position of the second portion in a track width direction being different from a position of the first portion in the track width direction, the track width direction intersecting a first direction from the magnetic pole toward the shield,the first portion recording the information in the magnetic recording medium after the second portion in the shingled magnetic recording,a first distance between the first portion and the shield being shorter than a second distance between the second portion and the shield,the shield-opposing surface being tilted with respect to the first direction.
1 Assignment
0 Petitions
Accused Products
Abstract
According to one embodiment, a magnetic recording head records information in a magnetic recording medium by shingled magnetic recording. The magnetic recording head includes a magnetic pole and a shield opposing the magnetic pole. The magnetic pole has a shield-opposing surface opposing the shield. The shield-opposing surface includes a first portion and a second portion. A position of the second portion in a track width direction is different from a position of the first portion in the track width direction, the track width direction intersecting a first direction from the magnetic pole toward the shield. The first portion records the information in the magnetic recording medium after the second portion in the shingled magnetic recording. A first distance between the first portion and the shield is shorter than a second distance between the second portion and the shield. The shield-opposing surface is tilted with respect to the first direction.
13 Citations
20 Claims
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1. A magnetic recording head, comprising:
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a magnetic pole; and a shield opposing the magnetic pole, the magnetic recording head recording information in a magnetic recording medium by shingled magnetic recording, the magnetic pole having a shield-opposing surface opposing the shield, the shield-opposing surface including a first portion and a second portion, a position of the second portion in a track width direction being different from a position of the first portion in the track width direction, the track width direction intersecting a first direction from the magnetic pole toward the shield, the first portion recording the information in the magnetic recording medium after the second portion in the shingled magnetic recording, a first distance between the first portion and the shield being shorter than a second distance between the second portion and the shield, the shield-opposing surface being tilted with respect to the first direction. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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2. A magnetic recording head, comprising:
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a magnetic pole; and a shield opposing the magnetic pole, the magnetic recording head recording information in a magnetic recording medium, the magnetic pole having a shield-opposing surface opposing the shield, the shield-opposing surface including a first portion and a second portion, a position of the second portion in a track width direction being different from a position of the first portion in the track width direction, the track width direction intersecting a first direction from the magnetic pole toward the shield, the magnetic recording medium including first to third regions arranged in the track width direction, the second region being disposed between the first region and the third region, the magnetic pole controlling a direction of a magnetization of the first region by the first portion opposing the first region at a first time, the magnetic pole controlling a direction of a magnetization of the second region by the second portion opposing the second region at the first time, the magnetic pole controlling the direction of the magnetization of the second region by the first portion opposing the second region at a second time after the first time, the magnetic pole controlling a direction of a magnetization of the third region by the second portion opposing the third region at the second time, a first distance between the first portion and the shield being shorter than a second distance between the second portion and the shield, the shield-opposing surface being tilted with respect to the first direction. - View Dependent Claims (16, 17, 18, 19)
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20. A magnetic recording and reproducing device, comprising:
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a magnetic recording head; and a magnetic recording medium, the magnetic recording medium being a perpendicular magnetic recording medium the magnetic recording head including; a magnetic pole; and a shield opposing the magnetic pole, the magnetic recording head recording information in a magnetic recording medium by shingled magnetic recording, the magnetic pole having a shield-opposing surface opposing the shield, the shield-opposing surface including a first portion and a second portion, a position of the second portion in a track width direction being different from a position of the first portion in the track width direction, the track width direction intersecting a first direction from the magnetic pole toward the shield, the first portion recording the information in the magnetic recording medium after the second portion in the shingled magnetic recording, a first distance between the first portion and the shield being shorter than a second distance between the second portion and the shield, the shield-opposing surface being tilted with respect to the first direction.
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Specification