Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1993-12-28
1997-05-06
Kiliman, Leszek
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
428328, 428329, 428330, 428402, 428403, 428694B, 428694BA, 428694BH, 428900, G11B 566
Patent
active
056269560
ABSTRACT:
The present invention provides a hexagonal magnetic ferrite pigment suitable for high density magnetic recording applications. The pigment is characterized by small particle size, a modified magnetoplumbite structure, and relatively high magnetic moment. The pigment is capable of being prepared by firing suitable precursor particles in air at temperatures below 850.degree. C.
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Dierssen Gunther H.
Hopstock David M.
Roden John S.
Sapieszko Ronald S.
Imation Corp.
Kiliman Leszek
Moeller Zerull Susan
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