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:
Sep. 23, 2003
Filed:
May. 31, 2000
Kazuhiko Hayashi, Tokyo, JP;
Keishi Ohashi, Tokyo, JP;
Nobuyuki Ishiwata, Tokyo, JP;
Masafumi Nakada, Tokyo, JP;
Eizo Fukami, Tokyo, JP;
Kiyokazu Nagahara, Tokyo, JP;
Hiroaki Honjou, Tokyo, JP;
Shinsaku Saitoh, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A magnetoresistive effect head which is easy to manufacture and in which a sense current is prevented from bypassing a barrier layer is provided. Also provided are a method for manufacturing the head and a magnetic recording apparatus utilizing the head. This magnetoresistive effect head utilizes an MTJ film which comprises, for forming its basic structure, a free layer, a barrier layer, a pinned layer and a pinning layer, wherein an oxide or a nitride layer is formed by oxidizing or nitriding metallic materials constituting the pinned layer and pinning layer.