JPS6242337B

PURPOSE:To obtain a magnetic recording medium for high-density recording by forming a magnetic layer which contains specific barium ferrite magnetic powder, gamma-Fe2O3 having nearly the same grain size, etc., and contains said barium ferrite by >=50% on the basis of the whole magnetic powder. CO...

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Bibliographische Detailangaben
Hauptverfasser:	WADA MORYASU, KATO HIROHISA, OGUCHI TOSHIHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES ELECTRICITY FILLING PASTES INDUCTANCES INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER INKS MAGNETS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PHYSICS POLISHES SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a magnetic recording medium for high-density recording by forming a magnetic layer which contains specific barium ferrite magnetic powder, gamma-Fe2O3 having nearly the same grain size, etc., and contains said barium ferrite by >=50% on the basis of the whole magnetic powder. CONSTITUTION:Magnetic powder is obtained by uniformly dispersing 45pts.wt. barium ferrite magnetic powder 45, shown by the general formula, having >= 600-1,500 Oe coercive force and