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. 09, 1976
Filed:
Sep. 13, 1974
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G01R / ;
U.S. Cl.
CPC ...
360112 ; 324 45 ; 360125 ;
Abstract
A semiconductor magnetic head in which a polycrystal thin film of a semiconductor material containing at least a crystal particle having a longitudinal diameter of at least 30 .mu.m is employed as a magneto-sensitive element is disclosed. The semiconductor thin film containing the crystal particle of the longitudinal diameter at least 30 .mu.m can be easily formed with a good reproducibility by evaporating the semiconductor material on an insulation film containing not less than 3 mol % of alumina and then being subjected to a zone melting treatment.