Patent · US Expired

Magnetic recording medium

US6835450B2 · kind B2 · utility

1Cited by

10References

24Claims

0Family size

Assignee

Imation Corp. · US

Inventors

Ronald J. Veitch · Frankenthal (Pfalz), DE
Albert Kohl · Laumersheim, DE
Helmut Jakusch · Bischofswerda, DE
Andreas Ilmer · Ludwigshafen, DE
Peter Heilmann · Bad Dürkheim, DE
Ria Kress · Ludwigshafen, DE
Stefan Müller · Wetzlar, DE
Johannes Sandrock · Kehl, DE

Key dates

Filing date	Apr 6, 2001
Grant date	Dec 28, 2004
Priority date	—
Expiry date	Nov 27, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/265
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.