Dynamic magnetic information storage or retrieval – Head mounting – For adjusting head position
Reexamination Certificate
2011-04-26
2011-04-26
Heinz, A. J. (Department: 2627)
Dynamic magnetic information storage or retrieval
Head mounting
For adjusting head position
Reexamination Certificate
active
07933098
ABSTRACT:
A thin film magnetic head is disclosed that is capable of improving the thermal efficiency of a heater. A thin film magnetic head includes: a lower shield layer; an upper shield layer; a reproducing element that is provided between the lower shield layer and the upper shield layer; a recording element that is formed on the upper shield layer; a heater that generates heat to expand at least one of the reproducing element and the recording element such that the reproducing element and/or the recording element protrude toward a recording medium; and a shunt line that applies a reference potential that is equal to the potentials of the lower shield layer and the upper shield layer to a magnetic layer of the recording element. In the thin film magnetic head, the shunt line is connected to the magnetic layer of the recording element at a position that deviates from the center of a heat generating region of the heater in a track width direction.
REFERENCES:
patent: 7199982 (2007-04-01), Suk
patent: 7729086 (2010-06-01), Song et al.
patent: 2004-206790 (2004-07-01), None
Otsuka Tomoo
Usui Manabu
Brinks Hofer Gilson & Lione
Heinz A. J.
TDK Corporation
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