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. 19, 1998
Filed:
Sep. 12, 1996
Toshio Kobayashi, Gumma, JP;
Chiharu Mitsumata, Gumma, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A magnetoresistive (MR) head for sensing magnetic data recorded on a magnetic recording medium with high track density and high linear density includes a magnetoresistive conductive layer (MR layer), a soft magnetic layer (SAL) for transversely biasing the MR layer and hard magnet layers for longitudinally biasing and controlling magnetization in the central sensing regions of the MR layer and the SAL. The longitudinal bias applied to the SAL is less than that to the MR layer so that a sensing current produces an effective magnetic field to saturate the SAL transversely. So, magnetization in the MR layer is kept at an angle of 40 to 45 degrees to easy magnetization direction of the MR layer and the improved reproducing output is obtained.