US Patent 7255922 - Skutterudite nanoparticle

http://www.freepatentsonline.com/7255922.html

Skutterudite is a compound represented by MX.sub.3 (M: Co, Rh, Ir, X: P, As, Sb) and is useful based on it's high thermoelectric performance. This patent from Dai Nippon Printing teaches forming nanoparticles of this material. Claim 1 reads:

1. An inorganic nanoparticle being a skutterudite compound and having an average particle size in a range of 2 nm to 100 nm.