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US 7,919,905 B2Granted
Magnetic head actuator having conductive fastening member electrically connecting upper and lower piezoelectric elements
AssigneeSony Corporation
InventorTakayuki Abe
Life of this patent
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Abstract
An actuator includes a piezoelectric bimorph including a pair of piezoelectric elements and an intermediate electrode provided between the piezoelectric elements, a conductive fastening member for fastening fixed ends of the piezoelectric elements to a base having a ground potential, and a contact member to which a predetermined voltage is applied. The contact member is in contact with the intermediate electrode.
Claims5
An actuator for a magnetic recording and/or reproducing device comprising:
- a piezoelectric bimorph including a pair of piezoelectric elements, and an intermediate electrode provided between the piezoelectric elements;
- a conductive fastening member for fastening the piezoelectric elements to a base having a ground potential, wherein the conductive fastening member electrically connects individual ones of the pair of piezoelectric elements;
- and
- a contact member to which a predetermined voltage is applied, the contact member being in contact with the intermediate electrode.
1 more element
A magnetic head device comprising an actuator, wherein the actuator includes:
- a piezoelectric bimorph including a pair of piezoelectric elements, and an intermediate electrode provided between the piezoelectric elements;
- a conductive fastening member for fastening fixed ends of the piezoelectric elements to a base having a ground potential, wherein the conductive fastening member electrically connects individual ones of the pair of piezoelectric elements;
- and
- a contact member to which a predetermined voltage is applied, the contact member being in contact with the intermediate electrode.
1 more element
Dependencies are inferred from the claim text.