发明名称 |
Verfahren zur Herstellung von Magnetit-Teilchen |
摘要 |
This invention provides magnetite particles containing a silicon component inside and also a silicon component exposed on the surface of each particle, which are improved in the properties of electrical resistance, remanent magnetization, and fluidity in a well-balanced way and suited for use principally as powdery material for magnetic toner for electrostatic copying and as black pigment powder for coating materials; and also relates to a process for producing the particles. |
申请公布号 |
DE69207525(T3) |
申请公布日期 |
2007.02.01 |
申请号 |
DE1992607525T |
申请日期 |
1992.09.10 |
申请人 |
MITSUI MINING & SMELTING CO. LTD. |
发明人 |
HASHIUCHI, MASACHIKA;OYAMA, AKIRA;YAMANISHI, TADASHI |
分类号 |
G03G9/083;C01G49/08 |
主分类号 |
G03G9/083 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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