Magnetically biased write pole
US9099108B2 · kind B2 · utility
1Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2011 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Jun 15, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49034
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus may be constructed with a magnetic element, such as a data transducing head. A first permanent magnet may be configured to bias the write pole to decrease remnant magnetization and erasure after write (EAW). The first permanent magnet can be separated from the write pole be a predetermined distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.