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. 06, 2007
Filed:
Dec. 23, 2002
Kenji Noma, Kawasaki, JP;
Kenji Noma, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A magnetoresistive film includes a pinned ferromagnetic layer, a free ferromagnetic layer, an intermediate layer interposed between the pinned and free ferromagnetic layers, and a pinning layer contacting the pinned ferromagnetic layer. The free ferromagnetic layer is made of a ferromagnetic layered material including a cobalt nickel iron alloy layer, and a cobalt iron alloy layer laid over the cobalt nickel iron alloy layer. It has been demonstrated that the cobalt nickel iron alloy layer serves to reliably establish the uniaxial magnetic anisotropy in the cobalt iron alloy layer. Moreover, even if the thickness of the cobalt nickel iron alloy layer as well as the cobalt iron alloy layer is reduced, the uniaxial magnetic anisotropy can surely be maintained in the ferromagnetic layered material.