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US 6,724,580 B2Granted
Actuator with piezoelectric member
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsYousuke Irie, Kazuo Yokoyama
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Abstract
An actuator of the present invention includes a shape maintaining sheet, a piezoelectric member provided integrally on the shape maintaining sheet, and a pair of electrodes formed to sandwich the piezoelectric member, wherein the shape maintaining sheet is formed of synthetic resin. Since the piezoelectric member is thin, the stiffness is increased by the shape maintaining sheet made of synthetic resin, and thus resonance frequency can be adjusted.
Claims16
An actuator, comprising:
- a shape maintaining sheet;
- a piezoelectric member provided integrally on the shape maintaining sheet, the piezoelectric member having a surface and a plurality of side faces;
- and
- a pair of electrodes formed to sandwich the piezoelectric member,
- wherein the shape maintaining sheet is formed of synthetic resin, and the resin covers the surface of the piezoelectric member and at least a portion of at least one of the plurality of side faces of the piezoelectric member.
2 more elements
An information recording/reproducing device including an actuator, comprising:
- a slider on which a head is mounted;
- a head supporting mechanism for supporting the head through the slider;
- and
- a tracking member for allowing tracking by the head through the head supporting mechanism,
- wherein the actuator includes:
- a shape maintaining sheet;
- a piezoelectric member provided integrally on the shape maintaining sheet, the piezoelectric member having a surface and a plurality of side faces;
- and
- a pair of electrodes formed to sandwich the piezoelectric member,
- the shape maintaining sheet being formed of synthetic resin, the resin covering the surface of the piezoelectric member and at least a portion of at least one of the plurality of side faces of the piezoelectric member,
- the head supporting mechanism includes the actuator, and
- the actuator is driven to displace the head minutely.
9 more elements
Dependencies are inferred from the claim text.