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Magnetic film for magnetic head
   
Document Number
US Patent 7294418
Issued Date
November 13, 2007
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Abstract
The magnetic film includes an FeCo layer, restrains erasing data by a magnetic field leaked from a magnetic pole, has high saturation magnetic flux density and soft magnetism and writes data with high recording density. The magnetic film for a magnetic head of the present invention comprises: a nonmagnetic layer including at least one selected from a group of Ru, Rh, Ir, Cr, Cu, Au, Ag, Pt and Pd; a magnetic layer including Fe and Co. Anisotropy magnetic field is 0.8 kA/m or more.
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Number of Claims:
8
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Owner
Fujitsu Limited (Kawasaki,JP)
Published
November 13, 2007
Application Number
10/786,840
Filed
February 25, 2004
US Classification
428/816   360/110 428/812 428/813 428/815
Int'l Classification
G11B   5/31   (20060101)  
Attorney/Law Firm
Priority Data
Jul 04, 2003 [JP] 2003-192020
USPTO Field of Search
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7522377 - Magnetic write head with high moment magnetic thin film formed over seed layer - Owned by Western Digital (Fremont), LLC (Fremont, CA)

A magnetic write head includes a seed layer and a magnetic layer on the seed layer. The seed layer includes seed-layer grains having either a face-centered cubic (fcc) crystalline structure with a surface plane substantially oriented in a [111] direction or a hexagonal-close-packed (hcp) crystalline structure with a surface plane substantially oriented in a [0001] direction. The magnetic layer includes magnetic-layer grains having a body-centered-cubic (bcc) crystalline structure with a surface plane substantially oriented in a [110] direction.

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