TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Process: Distribution process by a ball mill is carried out before wet pulverization. The wet pulverization is carried out in a jet mill or bead mill. The titanium oxide power in the precursor is obtained by gas phase reaction of titanium tetrachloride which is carried out by reacting titanium tetrachloride with oxygen, hydrogen and water vapor.Preferred Properties: The pH of titanium oxide dispersion is 5-9. The concentration of titanium oxide powder in the dispersion is 50 mass% or less.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: Distribution process by a ball mill is carried out before wet pulverization. The wet pulverization is carried out in a jet mill or bead mill. The titanium oxide power in the precursor is obtained by gas phase reaction of titanium tetrachloride which is carried out by reacting titanium tetrachloride with oxygen, hydrogen and water vapor.Preferred Properties: The pH of titanium oxide dispersion is 5-9. The concentration of titanium oxide powder in the dispersion is 50 mass% or less.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Compounds: The organic solvent is an alcohol. The amine group dispersant is amine salt of alkyl amine or polycarboxylic acid. The polymer dispersion agent is polycarboxylic acid and/or its salt. EXAMPLE - Titanium oxide powder having average particle diameter of 15 nm, specific surface area of 82 m2/g, and rutile rate of 15 %, was manufactured by gaseous phase reaction of titanium tetrachloride. The titanium oxide powder was added to polyacrylic acid ammonium aqueous solution, and dispersed for 8 hours at normal temperature in a ball mill. The obtained titanium oxide dispersion precursor having titanium oxide powder concentration of 15 mass% and dispersant concentration of 5 mass%, was pulverized in a wet jet mill at 150 MPa for 5 times. Titanium oxide dispersion having excellent dispersibility and favorable particle size distribution was obtained with D10 of 0.1 microns, D50 of 0.12 microns and D90 of 0.19 microns.