Data writer with graded side shields
US9704510B2 · kind B2 · utility
1Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2015 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Sep 24, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3163
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data writer can have at least a write pole separated from first and second side shields by a continuous dielectric gap layer. Each side shield may have first and second shield sub-layers configured with different magnetic moments that increase relative to the sub-layer's distance from the write pole. The side shields may wrap around a leading tip of the write pole to form a box shield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.