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. 10, 1993
Filed:
Dec. 04, 1992
Applicant:
Inventors:
Franciscus W Dirne, Eindhoven, NL;
Hendrik J De Wit, Eindhoven, NL;
Cornelis H Witmer, Eindhoven, NL;
Johannes A Tolboom, Eindhoven, NL;
Peter Lasinski, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
428635 ; 428682 ; 428928 ;
Abstract
The invention relates to a soft magnetic multilayer film which comprises a number of crystalline main layers and a number of amorphous secondary layers, the main layer substantially exclusively comprising iron as the magnetic constituent, and the secondary layer comprising mainly iron as the magnetic constituent. Such multilayer films exhibit a relatively low magnetostriction constant which is almost not influenced by temperature treatments. Such films are very suitable for use in magnetic heads.