US8349221B2 - Method of Producing Prussian Blue-Type Metal Complex Nanoparticles, and Prussian Blue-Type Metal Complex Nanoparticles Obtained by the Method, Dispersion of the Nanoparticles, Method of Regulating the Color of the Nanoparticles, and Electrode and Transmitted Light-Regulator Each Using the Nanoparticles | Patent Bear