Compositions – Magnetic – With wax – bitumen – resin – or gum
Reexamination Certificate
2005-02-08
2005-02-08
Koslow, C. Melissa (Department: 1755)
Compositions
Magnetic
With wax, bitumen, resin, or gum
C252S062560, C252S062570, C252S062580, C252S062590, C252S06290R, C252S062610, C252S062620, C252S062630, C252S062200
Reexamination Certificate
active
06852245
ABSTRACT:
A composition for producing granules for molding ferrite, which comprises a ferrite slurry at least having raw ferrite powders; an ethylene-modified polyvinyl alcohol whose ethylene modified amount is from 4 to 10 mol %, average polymerization degree is from 500 to 1700, and average saponification degree is from 90.0 to 99.5 mol %; and water mixed therewith, ferrite granules produced from the composition, ferrite green body produced from the granules and ferrite sintered body produced from the sintered body are disclosed.
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patent: 6337295 (2002-01-01), Harada
patent: 6596799 (2003-07-01), Harada
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Koslow C. Melissa
TDK Corporation
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