Inductive transducer with recessed leading pole layer
US6724572B1 · kind B1 · utility
183Cited by
7References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Aug 5, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/3996
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In one aspect, an inductive transducer is disclosed having a leading pole layer and a leading pole tip, with the pole layer being further removed than the pole tip from a media-facing surface. In another aspect, an inductive transducer is disclosed having a magnetic pedestal disposed between a leading pole layer and a leading pole tip, with at least one of the pedestal and pole layer being further removed than the pole tip from a media-facing surface. In another aspect, a leading pole layer or pedestal may have a surface that slopes away from the media-facing surface with increasing distance forward from the leading pole tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.