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:
Feb. 14, 1989
Filed:
Jul. 21, 1986
Applicant:
Inventors:
Assignee:
Hitachi Metals, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360125 ; 360103 ;
Abstract
A magnetic head having a magnetic alloy film superposed on a nonmagnetic substrate. The nonmagnetic substrate material contains 67 to about 89.9 mol % of MnO, 10 to 33 mol % of NiO, and at least 0.1 mol % but not more than 10 mol % of a material selected from the group of CaO, ZrO.sub.2, V.sub.2 O.sub.5, Y.sub.2 O.sub.3, and Cu and has a rock salt-type crystalline structure.