Invention Grant
US07889458B2 Write head with self-cross biased pole for high speed magnetic recording
有权
用自交偏置极头写入磁头用于高速磁记录
- Patent Title: Write head with self-cross biased pole for high speed magnetic recording
- Patent Title (中): 用自交偏置极头写入磁头用于高速磁记录
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Application No.: US11598418Application Date: 2006-11-13
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Publication No.: US07889458B2Publication Date: 2011-02-15
- Inventor: Wen-Chien David Hsiao , Terence Tin-Lok Lam , Changqing Shi
- Applicant: Wen-Chien David Hsiao , Terence Tin-Lok Lam , Changqing Shi
- Applicant Address: NL Amsterdam
- Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Zilka-Kotab, PC
- Main IPC: G11B5/31
- IPC: G11B5/31

Abstract:
A magnetic write head having a magnetic cross yoke arranged to provide a cross magnetic field in a pole tip region of the magnetic head. The cross field, which is perpendicular to the magnetization of write pole, reduces the switching time of the write field, thereby increasing the speed with which the write head can record data. The write head can be a longitudinal write head or a perpendicular write head. In the case of a perpendicular write, the write head can include a write pole arranged to provide a magnetic write field that emits a magnetic field substantially perpendicular with an Air Bearing Surface (ABS). A magnetic cross yoke is formed having ends that are disposed at opposite sides of the pole tip region of the write pole.
Public/Granted literature
- US20080112078A1 Write head with self-cross biased pole for high speed magnetic recording Public/Granted day:2008-05-15
Information query
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