Compositions – Magnetic – Iron-oxygen compound containing
Reexamination Certificate
2005-06-21
2005-06-21
Koslow, C. Melissa (Department: 1755)
Compositions
Magnetic
Iron-oxygen compound containing
C252S062580, C252S062570, C252S062590, C252S062600, C252S062610, C252S062620, C252S062630, C252S062640, C264S611000, C264S427000, C264S428000, C501S001000, C501S126000
Reexamination Certificate
active
06908568
ABSTRACT:
An oxide magnetic material is prepared by wet molding in a magnetic field a slurry containing a particulate oxide magnetic material, water and a polyhydric alcohol having the formula: Cn(OH)nHn+2wherein n is from 4 to 100 as a dispersant. By improving the orientation in a magnetic field upon wet molding using water, an oxide magnetic material having a high degree of orientation, typically an anisotropic ferrite magnet, is obtained at a high rate of productivity. The method is advantageous from the environmental and economical standpoints.
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Masuzawa Kiyoyuki
Taguchi Hitoshi
Koslow C. Melissa
TDK Corporation
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