The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2003
Filed:
Oct. 18, 2000
Shuxiang Li, Saku, JP;
Satoru Araki, Saku, JP;
TDK Corporation, Tokyo, JP;
Abstract
A current perpendicular-to-the-plane magnetoresistance (CPP-MR) read head includes a top shield and a bottom shield formed of magnetically shielding, electrically-conductive material. A multilayer magnetoresistance (MR) structure is disposed between the top shield and the bottom shield. The MR structure is in electrical contact with the top and bottom shields. A transverse magnetic field generating structure is adjacent the MR structure to transversely, magnetically bias the MR structure. The transverse magnetic field generating structure includes two permanent magnets on either side of the MR structure, and a T-shaped soft magnetic layer to direct magnetic flux from the magnets to the MR structure. In this manner, the read head provides a strong and uniform transverse magnetic bias to the MR structure.