Patent ID: 8507095

Claim:
A metal oxide-based fine particle comprising: a metal oxide-based core region; an intermediate region comprising an alkoxyorganosiloxane condensate structure, the intermediate region being formed on the outer periphery of the core region; and a surface region comprising an organic molecular chain or an organic silicon molecular chain or a reactive functional group, wherein the metal oxide-based fine particle is a fine particle formed by a reaction between organometallic compounds each comprising a first section comprising a metal alkoxide group comprising a plurality of alkoxy groups each having 1 to 3 carbon atoms, a second section comprising an alkoxyorganosiloxane structure portion, the second section being bonded to the first section, and a third section comprising an organic molecular chain or an organic silicon molecular chain or a reactive functional group, the third section being bonded to the second section; the metal oxide-based core region is a region formed by condensation between the metal alkoxide groups of the first sections; the intermediate region is a region formed by condensation between the alkoxyorganosiloxane structure portions of the second sections; and the surface region is a region comprising the organic molecular chains or the organic silicon molecular chains or the reactive functional groups of the third sections.