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. 17, 1998
Filed:
Jul. 21, 1992
Applicant:
Inventors:
Wolfgang Goede, Kehl, DE;
Martina Effenberg, Kehl, DE;
Assignee:
EMTEC Magnetics GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360133 ;
Abstract
A recording disk having an enclosure and a central hub. The hub is made of a magnetizable metal part and a non-magnetizable cover, which substantially completely covers the magnetizable part. The cover prevents recording/reproducing errors which are caused by metal particles of the magnetizable part. The cover may be made of injection molded thermoplastic.