Magnetic fluid
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United States of America Patent
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Nov 9, 2004
Issued Date -
N/A
app pub date -
May 24, 2002
filing date -
Nov 16, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There is disclosed a magnetic fluid medium which comprises a plurality of ferro- or ferri-magnetic particles, each of which particles has a largest dimension no greater than 100 nm, said particles having been prepared by a process which includes a step in which the particles are formed within an organic macromolecular shell.
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