HEXAGONAL FERRITE POWDER AND MAGNETIC RECORDING MEDIUM CONTAINING THE SAME

PROBLEM TO BE SOLVED: To provide hexagonal ferrite powder easily subjected to dispersion treatment and which is satisfactory in dispersibility and to provide a coating type magnetic recording medium containing the same and satisfactory in running durability and electromagnetic transducing characteri...

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Bibliographische Detailangaben
1. Verfasser:	JINBO NOBORU
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER INORGANIC CHEMISTRY METALLURGY PHYSICS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide hexagonal ferrite powder easily subjected to dispersion treatment and which is satisfactory in dispersibility and to provide a coating type magnetic recording medium containing the same and satisfactory in running durability and electromagnetic transducing characteristics. SOLUTION: The hexagonal ferrite powder has 3-7 μmol/m stearic acid adsorption and 1-4 μmol/m stearyl amine adsorption. The magnetic recording medium having a magnetic layer on a substrate is characterized in that the magnetic layer contains the hexagonal ferrite powder.