Magnetic head for perpendicular magnetic recording

Details Magnetic head for perpendicular magnetic recording Magnetic head for perpendicular magnetic recording

2006-06-20

2008-12-23

Cao, Allen T (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

Reexamination Certificate

active

07468862

ABSTRACT:
A magnetic head comprises a pole layer and first and second coils located in regions sandwiching the pole layer. Each of the two coils is flat-whorl-shaped. The first coil incorporates an inner connecting portion and an outer connecting portion opposite to the inner connecting portion. The second coil also incorporates an inner connecting portion and an outer connecting portion opposite to the inner connecting portion. The inner connecting portion of the first coil is electrically connected to the inner connecting portion of the second coil. The outer connecting portion of the first coil is electrically connected to the outer connecting portion of the second coil, too. In such a manner the two coils are electrically connected to each other in parallel.

REFERENCES:
patent: 4656546 (1987-04-01), Mallory
patent: 4672493 (1987-06-01), Schewe
patent: 6504675 (2003-01-01), Shukh et al.
patent: 7417824 (2008-08-01), Kameda
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patent: 2007/0064343 (2007-03-01), Yazawa et al.
patent: 2007/0268627 (2007-11-01), Le et al.
patent: 2008/0002291 (2008-01-01), Balamane et al.
patent: 2008/0088971 (2008-04-01), Sasaki et al.
patent: 2008/0088972 (2008-04-01), Sasaki et al.

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