Patent · US Active

Write pole box shield

US8842390B2 · kind B2 · utility

10Cited by

6References

20Claims

0Family size

Assignee

Seagate Technology LLC · US

Inventors

Zhe Shen · Arden Hills, US
Luo Yong · Plymouth, US
Wei Tan · Eden Prairie, US
Dong Lin · San Francisco, US

Key dates

Filing date	Jan 18, 2013
Grant date	Sep 23, 2014
Priority date	—
Expiry date	Jan 18, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG11B5/3163
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A magnetic element may be generally configured as a data writer constructed at least with a write pole within a box shield that consists of first and second side shields and first and second vertical shields. The write pole may be separated from the box shield by a multi-layer gap structure that consists of at least two gap layers of dissimilar materials.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.