| http://www.w3.org/ns/prov#value | - For example, U.S. Pat. No. 3,971,874 proposes a recording material having a thin film of which essential material is TeOx where x is smaller than 2.0 When irradiated with light such as a laser beam, the thin film of the suboxide undergoes a change from a low optical density state to a high optical density state as a result of temperature increase by absorption of light energy.
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