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:
Mar. 15, 1988
Filed:
Oct. 31, 1985
Applicant:
Inventors:
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
428611 ; 428632 ; 428633 ; 428928 ; 360125 ; 360126 ; 360127 ;
Abstract
A composite magnetic material and a magnetic head made from this composite magnetic material formed of a combination of a body of a magnetic metal material and a magnetic oxide material joined together in such a manner as to provide improved strength while attaining an improved manufacturability and regenerative sensitivity at high frequencies. In accordance with the invention, the two bodies are joined together with a thin magnetic metal film initially formed on the oxide material body by vapor deposition or sputtering. The thin magnetic metal film can be made of the same material as the magnetic metal material body.