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:
Nov. 22, 2011
Filed:
Dec. 18, 2009
Koji Sakamoto, Kanagawa-ken, JP;
Koichi Nishioka, Kanagawa-ken, JP;
Katsuya Mitsuoka, Kanagawa-ken, JP;
Katsumi Hoshino, Kanagawa, JP;
Yo Sato, Kanagawa, JP;
Koji Sakamoto, Kanagawa-ken, JP;
Koichi Nishioka, Kanagawa-ken, JP;
Katsuya Mitsuoka, Kanagawa-ken, JP;
Katsumi Hoshino, Kanagawa, JP;
Yo Sato, Kanagawa, JP;
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
One general embodiment of the present invention is a magnetic read head including a magnetoresistive sensor where sense current flows in a stacking direction of the magnetoresistive sensor, i.e., perpendicular to the plane of the layers of the head. The magnetoresistive sensor comprises a free layer having a magnetization direction that is affected by external magnetic fields and includes a Heusler alloy layer and a Co-based amorphous metal layer, a fixed layer which is stacked with the free layer and has a fixed magnetization direction, and a non-magnetic intermediate layer between the free layer and the fixed layer.