Magnetic recording head with resistive heating element located near the write coil
US7372665B1 · kind B1 · utility
186Cited by
32References
80Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2005 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Mar 2, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/607
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic head includes a slider body having a trailing surface meeting an air-bearing surface at a trailing edge, with a thin-film transducer disposed on the trailing surface of the slider body near the trailing edge. The thin-film transducer includes a coil embedded between first and second poles. A resistive heating element is disposed adjacent and electrically insulated from, the coil. Application of power to the resistive heating element causes expansion of at least the first and second poles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.