Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1993-04-19
1994-11-29
Nakarani, D. S.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
252 6256, 252 6258, 252 6259, 423633, 423634, 428323, 428328, 428331, 428403, 428404, 428694BN, B32B 516, G11B 570
Patent
active
053689330
ABSTRACT:
Disclosed herein is superparamagnetic fine particles of iron oxide having an unsaturated fatty acid adsorbed on the surface of superparamagnetic fine particles and having a magnetization of not less than 50 emu/g, the rate of change of the magnetization of not more than 10%, and an Fe.sup.2+ content (calculated as Fe.sup.2+ /Fe.sup.3+ molar ratio) of 0.16-0.5.
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Aoki Koso
Fukugauchi Masaaki
Hayashi Kazuyuki
Horiishi Nanao
Imai Tomoyuki
Nakarani D. S.
Toda Kogyo Corp.
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