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US 2006/0067006 A1Published application
Magnetic head and magnetic recording and reproducing apparatus
AssigneeKabushiki Kaisha Toshiba
InventorsMasayuki Takagishi, Kotaro Yamamoto, Tomoko Taguchi
Life of this patent
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Abstract
A magnetic head includes a read head including a read element and two layers of shields sandwiching the read element therebetween, and a write head including a main pole, a return yoke, and an exciting coil, in which at least one of each of the shields and the return yoke has an area of a bottom surface at least 1.2 times as large as an area of a top surface.
Claims16
A magnetic head comprising:
- a read head including a read element and two layers of shields sandwiching the read element therebetween;
- and
- a write head including a main pole, a return yoke, and an exciting coil,
- wherein at least one of each of the shields and the return yoke has an area of a bottom surface at least 1.2 times as large as an area of a top surface.
1 more element
A magnetic recording and reproducing apparatus comprising:
- a magnetic head comprising a read head including a read element and two layers of shields sandwiching the read element therebetween, and a write head including a main pole, a return yoke, and an exciting coil, wherein at least one of each of the shields and the return yoke has an area of a bottom surface at least 1.2 times as large as an area of a top surface;
- and
- a perpendicular magnetic recording media having a soft underlayer and a perpendicular magnetic recording layer formed on a nonmagnetic substrate.
Dependencies are inferred from the claim text.