Composite black oxide particle, method for producing same,...

Details Composite black oxide particle, method for producing same,... Composite black oxide particle, method for producing same,...

2004-10-14

2008-12-16

Kiliman, Leszek (Department: 1794)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

C428S403000, C428S404000, C148S251000, C148S272000, C148S282000, C148S425000, C427S453000

Reexamination Certificate

active

07465495

ABSTRACT:
Disclosed is a composite black oxide particle which is composed of oxide of cobalt, copper and manganese. The copper/cobalt molar ratio is 0.1-0.5, and the manganese/cobalt molar ratio is 0.2-1.0. The composite black oxide particle further contains silicon, and the silicon content to the total oxide particle is 0.1-3 mass %. The surface of the composite black oxide particle is coated with aluminum oxide. The Al content in the surface coating to the entire particle is 0.05-3 mass %.

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patent: 6362239 (2002-03-01), Buess et al.
patent: 6680272 (2004-01-01), Buess et al.
patent: 09-237570 (1997-09-01), None
patent: 10-231441 (1998-02-01), None
patent: 2000-162643 (2000-06-01), None
patent: 2002-20119 (2002-01-01), None

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