Method of making a magnetic recording medium

A magnetic recording medium having a magnetic coating containing therein ferromagnetic metal powder provided on a base film, wherein the magnetic recording medium being characterized in that the surface roughness of the magnetic coating, i.e., the surface roughness Rrms (a unit of measurement of mu...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: YAMAKAWA, YOSHISUKE, WATANABE, AKIO, TOKUOKA, YASUMICHI
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A magnetic recording medium having a magnetic coating containing therein ferromagnetic metal powder provided on a base film, wherein the magnetic recording medium being characterized in that the surface roughness of the magnetic coating, i.e., the surface roughness Rrms (a unit of measurement of mu m) with respect to a waveform having a wavelength P in a range of from 3 to 50 mu m out of groups of waveforms constituting the cross-sectional waveform of the surface of the magnetic coating, satisfies the following equation. Rrms