To provide a method for dispersing a metal oxide suitable for wet film formation, in which a metal oxide fine particle can stably disperse even when a reduced amount of dispersant is used, and also to provide a method for producing a metal oxide thin film having excellent film quality such as light transmittance and compactivity. 分散剤を少なくしても金属酸化物微粒子を安定的に分散できる湿式製膜法に適した金属酸化物の分散方法、及びそれを用いた光透過性及び緻密性等の膜質に優れた金属酸化物薄膜の製造方法を提供する。 - 特許庁