Perpendicular writer with reduced side track writing
US7333294B1 · kind B1 · utility
3Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2002 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | Jan 18, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/1278
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disc drive head that includes a shared pole having high magnetic anisotropy layer which locally decreases the amplitude of dynamic field excitation of the shared pole at the write operation frequency to reduce side-writing of a disc media during a write operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.