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. 17, 2001
Filed:
Jun. 08, 1999
Applicant:
Inventor:
Toshio Kazama, Niigata-ken, JP;
Assignee:
Alps Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/17 ; G11B 5/60 ;
U.S. Cl.
CPC ...
G11B 5/17 ; G11B 5/60 ;
Abstract
A magnetic head in which a pole core is formed on a base, and a planar coil, formed as a thin film coil, winds around the pole core. A cover, formed of a ceramic material or the like, is provided on the base. Using a planar film allows thinner magnetic heads to be produced. Since the planar coil can be brought close to an end of the pole core, a magnetic field can be generated more efficiently, and the recording performance can be improved.