Christopher A Platt

US Patent:

7035061, Apr 25, 2006

Filed:

Jun 18, 2003

Appl. No.:

10/464343

Inventors:

Eric W. Singleton - Maple Plain MN, US
David J. Larson - Northfield MN, US
Christopher L. Platt - Pittsburgh PA, US
Kurt W. Wierman - Pittsburgh PA, US
James K. Howard - Pittsburgh PA, US

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 5/39

US Classification:

36032412, 36032731

Abstract:

A transducing head includes a first bias element, a second bias element, and a magnetoresistive sensor positioned between the first bias element and the second bias element. The first bias element and the second bias element are each formed of a permanent magnet material having a remanent magnetic moment in a range of about 200 to about 800 emu/cm. In a preferred embodiment, the permanent magnet material is an alloy comprising iron, platinum, and at least one material selected from copper, silver, magnesium, lead, zinc, bismuth, and antimony.