发明名称 HEXAGONALES, MAGNETISCHES FERRITPIGMENT ZUR VERWENDUNG FÜR HOCHEMPFINDLICHE MAGNETISCHE AUFNAHMEN.
摘要 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 DEG C.
申请公布号 DE69205987(D1) 申请公布日期 1995.12.14
申请号 DE1992605987 申请日期 1992.08.10
申请人 MINNESOTA MINING AND MFG. CO., SAINT PAUL, MINN., US 发明人 HOPSTOCK, DAVID, M., SAINT PAUL, MN 55133-3427, US;RODEN, JOHN, S., SAINT PAUL, MN 55133-3427, US;DIERSSEN, GUNTHER, H., SAINT PAUL, MN 55133-3427, US;SAPIESZKO, RONALD, S., SAINT PAUL, MN 55133-3427, US
分类号 C01G49/00;C04B35/26;G11B5/706;G11B5/73;H01F1/11;(IPC1-7):G11B5/706;H01F1/36 主分类号 C01G49/00
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