Inductive write head including a thin high moment pedestal having a tapered edge
US6650503B1 · kind B1 · utility
152Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Jun 13, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49046
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An inductive write element for use with a magnetic data recording and retrieval system is provided. The write element includes a magnetic yoke having an electrically conductive coil passing there through. The yoke is constructed of first and second magnetic poles, and performance of the write element is improved by the inclusion of a very thin pedestal of a high magnetic moment material on the first pole in the pole tip region. Further performance gains are realized by providing a tapered edge on the pedestal to facilitate magnetic flux flow through the pedestal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.