| http://www.w3.org/ns/prov#value | - As for such a dispersing agent, inorganic material, such as barium oxide, barium titanate, barium oxide, silicon oxide, titanium oxide and aluminum oxide, and organic material, such as melamine resin, CTU guanamine resin and benzoguanamine resin are preferably used. [0100] A variety of coloring agents can be added in order to provide a filtering effect for eliminating unnecessary wavelengths from
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