Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Iron group metal
Reexamination Certificate
2006-08-29
2008-08-12
Vanoy, Timothy C (Department: 1793)
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Iron group metal
C423S140000, C423S561100, C423S632000, C423S633000, C423S634000, C252S062560, C252S062620, C252S062630, C252S062640, C977S773000, C977S811000
Reexamination Certificate
active
07410625
ABSTRACT:
A method and structure for making magnetite nanoparticle materials by mixing iron salt with alcohol, carboxylic acid and amine in an organic solvent and heating the mixture to 200-360° C. is described. The size of the particles can be controlled either by changing the iron salt to acid/amine ratio or by coating small nanoparticles with more iron oxide. Magnetite nanoparticles in the size ranging from 2 nm to 20 nm with a narrow size distribution are obtained with the invention.
REFERENCES:
patent: 3215572 (1965-11-01), Papell
patent: 3252758 (1966-05-01), Abeck et al.
patent: 3648269 (1972-03-01), Rosenweig et al.
patent: 3917538 (1975-11-01), Rosenweig
patent: 3972595 (1976-08-01), Romankiw et al.
patent: 4019994 (1977-04-01), Kelley
patent: 4209412 (1980-06-01), Marcot
patent: 4855079 (1989-08-01), Wyman
patent: 4991191 (1991-02-01), Suryanarayanan
patent: 5244494 (1993-09-01), Cavanagh
patent: 5648170 (1997-07-01), Okano et al.
patent: 5650113 (1997-07-01), Gregory et al.
patent: 5948321 (1999-09-01), Hong et al.
patent: 6048515 (2000-04-01), Kresse et al.
patent: 6083476 (2000-07-01), Mochizuki et al.
patent: 6086780 (2000-07-01), Hong et al.
patent: 6103437 (2000-08-01), Kozawa et al.
patent: 6123920 (2000-09-01), Gunther et al.
patent: 6165440 (2000-12-01), Esenaliev
patent: 6167313 (2000-12-01), Gray et al.
patent: 6203777 (2001-03-01), Schroder
patent: 6207134 (2001-03-01), Fahlvik et al.
patent: 6582922 (2003-06-01), Daimon et al.
patent: 6682713 (2004-01-01), Funakoshi et al.
patent: 6692685 (2004-02-01), Willingham
patent: 6962685 (2005-11-01), Sun
patent: 7122168 (2006-10-01), Woo et al.
patent: 2002/0162798 (2002-11-01), Johnson et al.
patent: 2007/0140951 (2007-06-01), O'Brien et al.
K. Raj et al., “Commercial Applications of Ferrofluids”, Journal of Magnesium and Magnetic Materials, vol. 85, 1990, pp. 233-245.
G. Gong et al., “magnetoresistance and magnetic Properties of Epitaxial Magnetite Thin Films”, Physical Review B, vol. 56, No. 9, 1997, pp. 5096-5099.
Coey et al., “Magnetoresistance of Magnetite”, Applied Physics Letters, vol. 72, No. 6, 1998, pp. 734-736.
Li et al., “Transport and magnetic Properties of Epitaxial and Polycrystalline Magnetite Thin Films”, Journal of Applied Physics, vol. 83, No. 11, 1998, pp. 7049-7051.
Gibb & Rahman, LLC
International Business Machines - Corporation
Tuchman, Esq. Ido
Vanoy Timothy C
LandOfFree
Process of making metal containing iron oxide and iron... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process of making metal containing iron oxide and iron..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of making metal containing iron oxide and iron... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4016038