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发明名称
MANUFACTURING METHOD OF MAGNETIC POWDER
摘要
PURPOSE:A method of obtaining Fe particles, Fe3O4 particles, or UPSILON-F2O3 particles of needle forms with extinct dewatering holes suitable for magnetic powder of magnetic recording.
申请公布号
JPS5240798(A)
申请公布日期
1977.03.29
申请号
JP19750115805
申请日期
1975.09.25
申请人
HITACHI MAXELL
发明人
WAKAI KUNIO
分类号
G11B5/706;B22F9/22;C01G49/02;C01G49/08;C09D5/23;C09D7/12;H01F1/06;H01F1/11
主分类号
G11B5/706
代理机构
代理人
主权项
地址
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