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:
Dec. 28, 2004
Filed:
Apr. 06, 2001
Applicant:
Inventors:
Ronald John Veitch, Maxdorf, DE;
Albert Kohl, Laumersheim, DE;
Helmut Jakusch, Frankenthal, DE;
Andreas Ilmer, Ludwigshafen, DE;
Peter Heilmann, Bad Dürkheim, DE;
Ria Kress, Ludwigshafen, DE;
Stefan Müller, Willsätt, DE;
Johannes Sandrock, Kehl, DE;
Assignee:
Imation Corp., Oakdale, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/16 ; G11B 5/66 ; G11B 5/70 ; B29C 7/102 ; H01F 1/00 ;
U.S. Cl.
CPC ...
B32B 5/16 ; G11B 5/66 ; G11B 5/70 ; B29C 7/102 ; H01F 1/00 ;
Abstract
Multilayer magnetic recording medium is suitable for high recording densities and the recording of digital data, has very good electromagnetic recording properties in the entire recording wavelength range and good mechanical properties and possesses a flat frequency response and which has at least one upper magnetic recording layer less than 0.5 &mgr;m thick and at least one lower layer which contains a magnetically soft pigment.