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:
Oct. 13, 1998
Filed:
Mar. 26, 1997
Atsushi Matsuzono, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
A longitudinal type magnetoresistance effect device employed in a thin-film magnetic head enclosed within a high-density magnetic recording device or in a high-sensitivity magnetic sensor, in which the rate of change in resistance dependent on the sense current density may be prevented from being lowered and in which high magnetic field sensitivity may be realized even in the high sense current density area. The sense current flows in the device in a direction at right angles to the plane of the magnetic recording medium. At least two or more layers of the soft magnetic layers and the non-magnetic electrically conductive layers are stacked in multiple layers and has a broad width portion in an area which proves to be a current route for the sense current.