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:
Jan. 13, 2009
Filed:
Jun. 30, 2004
Applicants:
Kaizhong Gao, Bloomington, MN (US);
Jian X. Shen, Savage, MN (US);
Shaoping LI, Naperville, IL (US);
Song S. Xue, Edina, MN (US);
Juan J. Fernandez-de-castro, Lakeville, MN (US);
Inventors:
Kaizhong Gao, Bloomington, MN (US);
Jian X. Shen, Savage, MN (US);
Shaoping Li, Naperville, IL (US);
Song S. Xue, Edina, MN (US);
Juan J. Fernandez-de-Castro, Lakeville, MN (US);
Assignee:
Seagate Technology LLC, Scotts Valley, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/33 (2006.01);
U.S. Cl.
CPC ...
Abstract
A differentiated sensor includes a pair of magnetic layers having magnetization directions that are substantially antiparallel in a quiescent state. At least one of the magnetic layers is a free layer. A spacer layer is disposed between the pair of magnetic layers.