Loading patent…
AssigneeNEC Corporation
InventorMasahiro Yanagisawa
Estimating the term…
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 tract 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 slider 11. 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.
A magnetic disc apparatus comprising a magnetic head slider floating on air with respect to a magnetic disc, the magnetic head slider including:
A magnetic disc apparatus comprising a magnetic head slider including a recording/reproduction element formed on a piezoelectric element deflecting in a direction perpendicular to a voltage application direction and arranged mounted adjacent an air flow out end of the magnetic head slider floating on the air, wherein the piezoelectric element is attached on one side to the air flow out end of the magnetic head slider via a first electrode, and the recording/reproduction element is attached to an opposite side of the piezoelectric element via a second electrode.
A magnetic disc apparatus using a magnetic head slider including a recording/reproduction element mounted adjacent an air flow out end of a magnetic head slider floating on the air, and formed on a piezoelectric element deflecting in parallel to the voltage application direction and on a piezoelectric- element deflecting in a direction perpendicular to the voltage application direction, wherein the piezoelectric elements are arranged in a stack, each piezoelectric element being sandwiched between a pair of electrodes, the stack being attached on one side to the air flow out end of the magnetic head slider via a first electrode, and the recording/reproduction element being attached on the opposite end of the stack via a second electrode.
A magnetic head including a piezoelectric actuator adjacent an air flow out end of a floating type magnetic head slider, the piezoelectric actuator having at its sides a pair of electrodes, one of which electrodes is arranged facing the air flow out end of the magnetic head slider between the magnetic head slider and the piezoelectric actuator, and the other of which electrodes is arranged between the piezoelectric actuator and a recording/reproduction element which is electrically insulated from the electrode.
A magnetic head including a plurality of layered piezoelectric actuators having different displacement directions and arranged adjacent an air flow out end of a floating type magnetic head slider, wherein the plurality of layered piezoelectric actuators, each of which actuators is sandwiched between a pair of electrodes, and wherein are arranged in a stack between the magnetic head slider and a recording/reproduction element, and wherein a first outer electrode of the layered plurality of actuators is arranged facing the air flow out end of the magnetic head slider and a second outer electrode of the layered plurality of piezoelectric actuators has mounted thereon and electrically insulated therefrom the recording/reproduction element.
Dependencies are inferred from the claim text.