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. 15, 2006
Filed:
Mar. 28, 2005
Eiji Nakashio, Miyagi, JP;
Seiji Onoe, Miyagi, JP;
Junichi Sugawara, Miyagi, JP;
Toru Katakura, Miyagi, JP;
Eiji Nakashio, Miyagi, JP;
Seiji Onoe, Miyagi, JP;
Junichi Sugawara, Miyagi, JP;
Toru Katakura, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
A magnetic tunnel effect type magnetic head comprising a first soft magnetic conductive layer which is to provide a lower shielding layer, a metal oxide layerand a first nonmagnetic conductive layer, formed on the first soft magnetic conductive layer, to provide a lower gap layer, a magnetic tunnel junction layerformed on the first nonmagnetic conductive layer to provide a magnetic tunnel junction element, a second nonmagnetic conductive layer formed on the magnetic tunnel junction layerto provide an upper gap layer; and a second soft magnetic conductive layer formed on the second nonmagnetic conductive layer to provide an upper shielding layer, the metal oxide layerin the lower gap layerbeing formed beneath at least the magnetic tunnel junction layer