39results about How to "Great cost-effectiveness" patented technology

In an advertisement information providing system, a destination is set based on the identification number assigned for each store 10, published by an advertisement provider 20. When the user arrives at the setup destination and visits the corresponding store 10 or purchases a commodity in the store 10, the store 10 pays cooperation money to the advertisement provider 20.

The present invention provides an organic / inorganic composite containing a rare earth metal or / and Period IV transition metal in which the aforementioned rare earth metal or / and Period IV transition metal is doped at a high concentration, and control of quenching and optical transparency are assured thereby; and an optical amplifier, a light control optical element, and luminescent device utilizing the same. The organic / inorganic composite containing a rare earth metal or / and Period IV transition metal is one in which at least one species of rare earth metal or / and Period IV transition metal is dispersed in an organic polymer, with the aforementioned composite containing an optically transparent organic polymer and an inorganic dispersion phase comprising: (1) a rare earth metal and (2) another element coordinated thereto via an oxygen atom(s). The inorganic dispersion phase in which another metal coordinates to rare earth metal or / and Period IV transition metal via an oxygen atom(s) preferably has an average particle size ranging from 0.1 to 1000 nm. Preferably, the ratio of rare earth metal or / and Period IV transition metal when mathematically converted to solid content is 90 mass % or less of the total mass of the organic polymer and the rare earth metal dispersion phase.