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:
Jul. 10, 1990
Filed:
May. 26, 1988
Applicant:
Inventors:
Assignee:
Hitachi Maxell, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; G11B / ;
U.S. Cl.
CPC ...
360120 ; 360121 ; 360126 ;
Abstract
In a magnetic head comprising a first and second core halves bonded together defining a magnetic gap, an non-magnetic thin layer is formed on the surface of each core half facing to the magnetic gap using materials which are substantially chemically non-reactive with the component of an amorphous metallic magnetic thin layer of each half and low melting point glass, and low melting point glass thin layer formed on the non-magnetic thin layer made of glass having a melting of point of temperature lower than the crystallization temperature of the amorphous metallic magnetic thin layer.