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:
Aug. 28, 2001
Filed:
Sep. 20, 1999
Kenji Machida, Tokyo, JP;
Naoto Hayashi, Tokyo, JP;
Yoshiro Yoneda, Tokyo, JP;
Junji Numazawa, Tokyo, JP;
Makiko Kohro, Saitama, JP;
Takahisa Tanabe, Saitama, JP;
Shinichi Nagahara, Saitama, JP;
Other;
Abstract
A magnetoresistive effect element,is physically configured such that the element width is at least three times as large as the element height. A plurality of domain control layers,to,are located between the magnetoresistive effect element,and a plurality of detecting electrodes,to,in a state that the domain control layers,to,are closely formed on the magnetoresistive effect element,. Each of the domain control layers,to,applies a unidirectional magnetic field to a region of the magnetoresistive effect element,vertically disposed in a guard band of the magnetic recording medium,, the guard band having no information recorded therein. The unidirectional magnetic field is directed in an orientation of an initial magnetization in a single magnetoresistive effect element, the orientation of which depends on a direction of on an easy axis of the magnetoresistive effect element