Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2006-08-01
2006-08-01
Kim, Paul D. (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S603070, C029S603130, C029S603150, C029S603160, C029S603180, C029S025350, C029S417000, C216S022000, C216S039000, C216S041000, C216S048000, C216S065000, C360S235100, C360S235300, C360S025000, C360S235800, C360S236100, C360S026000, C451S004000, C451S051000
Reexamination Certificate
active
07082671
ABSTRACT:
A recording/reproduction element is mounted on a magnetic head slider via a piezoelectric element so that a displacement of the piezoelectric element performs fine control of the position of the recording/reproduction, thus enabling fine spacing and high track positioning accuracy. This improves linear recording density and track density. A pair of electrodes are formed on both sides of a piezoelectric element to constitute a piezoelectric actuator. One electrode is arranged opposite the rear surface (air flow out end) of a magnetic head slider11. A recording/reproduction element is arranged on and electrically insulated from the other electrode. The piezoelectric element includes a piezoelectric element displaced in a spacing direction, enabling fine spacing control, a piezoelectric element displaced in the track direction, enabling fine track position control, and a piezoelectric element displaced in a magnetic disc rotation direction, enabling reduction of jitter of a reproduction signal.
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Hayes & Soloway P.C.
Kim Paul D.
TDK Corporation
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