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:
May. 24, 2005
Filed:
May. 30, 2001
Mitsuo Kawasaki, Niigata-ken, JP;
Yoshihiro Kanada, Niigata-ken, JP;
Mitsuo Kawasaki, Niigata-ken, JP;
Yoshihiro Kanada, Niigata-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A lower pole layer and/or an upper pole layer is formed by plating a soft magnetic film represented by the formula FeNiα(wherein element α is at least one of Tc, Ru, Rh, Pd, Re, Os, Ir and Pt), wherein the composition ratio X of Fe is 65% by mass to 74% by mass, the composition ratio Y of Ni 25% by mass to 34% by mass, the composition ratio Z of the element α is 1% by mass to 7% by mass, and X+Y+Z=100% by mass. Therefore, a thin film magnetic head adaptable to a higher recording density and having excellent corrosion resistance can be manufactured.