Invention Grant
US08804282B1 Magnetic write head having a hybrid material main pole for high frequency recording
有权
具有用于高频记录的混合材料主极的磁性写头
- Patent Title: Magnetic write head having a hybrid material main pole for high frequency recording
- Patent Title (中): 具有用于高频记录的混合材料主极的磁性写头
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Application No.: US13865071Application Date: 2013-04-17
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Publication No.: US08804282B1Publication Date: 2014-08-12
- Inventor: Mikito Sugiyama , Hiromi Shiina , Kazue Kudo , Yusuke Takahashi , Kimitoshi Eto
- Applicant: HGST Netherlands B.V.
- Applicant Address: NL Amsterdam
- Assignee: HGST Netherlands N.V.
- Current Assignee: HGST Netherlands N.V.
- Current Assignee Address: NL Amsterdam
- Agent John D. Henkhaus
- Main IPC: G11B5/127
- IPC: G11B5/127

Abstract:
Approaches for a magnetic write head having a hybrid material main pole, in which a first magnetic material has a first cross-sectional area (A1) and a second magnetic material has a second cross-sectional area (A2), and wherein the ratio A1/A2 reduces in a direction away from the air bearing surface. The first material comprises a high saturation magnetic flux density material, and the second material comprises a high magnetic permeability and low saturation magnetic flux density material having a lower saturation magnetic flux density than said first material.
Information query
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