SUPPORT D'ENREGISTREMENT MAGNETIQUE

A magnetic recording medium for use in video and other applications is presented which comprises a substrate, a continuous thin magnetic layer of cobalt and at least one selected from nickel, chromium, and oxygen, preferably obliquely evaporated on the substrate, and a topcoat formed over the magnet...

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Bibliographische Detailangaben
1. Verfasser: OSAMU KOHMOTO, YASUFUMI TAKASUGI, HIROSHI SUGIHARA ET MASAHARU NISHIMATSU
Format: Patent
Sprache:fre
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Zusammenfassung:A magnetic recording medium for use in video and other applications is presented which comprises a substrate, a continuous thin magnetic layer of cobalt and at least one selected from nickel, chromium, and oxygen, preferably obliquely evaporated on the substrate, and a topcoat formed over the magnetic layer and made of a phosphate compound having the formula: where R is selected from alkyl radicals having 10 to 22 carbon atoms, and Y and Y' are independently selected from the group consisting of hydrogen atom, alkyl radicals and monovalent cations, and Y and Y' may together represent a divalent cation.