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:
Jun. 27, 1989
Filed:
Nov. 30, 1987
Herbert Schewe, Herzogenaurach, DE;
Dietrich Stephani, Erlangen, DE;
Armin Lenhart, Neunkirchen, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
A magnetic head having layered structure for a recording medium for vertical magnetization contains a conductor body on a non-magnetic substrate for conducting the magnetic flux with two magnet legs, the end pieces of which form a thin main pole and a comparatively thicker auxiliary pole. The two magnetic poles are separated by an insulating gap layer of at least 5 .mu.m. This magnetic head and particularly its gap layer should be relatively simple to produce. Recesses are provided in the substrate to submerge at least the end piece of the auxiliary pole of one magnet leg and an adjoining part of this leg as well as at least part of the gap layer.