Magnetic head actuator including piezoelectric elements fixed to the arms of a fired glass-ceramic substrate
US7277259B2 · kind B2 · utility
6Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2004 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Apr 21, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5552
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic head actuator includes a head-holding substrate having a pair of movable arms for clamping a magnetic head, and piezoelectric elements fixed along the pair of movable arms to move the pair of movable arms in response to an applied voltage. The head-holding substrate comprises a fired glass-ceramic compact containing at least one of SiO2, B2O3, and Al2O3. The piezoelectric elements are formed on the head-holding substrate with a piezoelectric material by printing and low-temperature firing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.