| 摘要 |
To provide a fabricating method and a fabricating apparatus of a planar glass molded article and a glass substrate capable of fabricating a thinner planer glass molded article in a state having small warp without extending cycle time and an information recording medium, a method of providing a planar glass molded article by pressing a glass material to be molded by using molds at least including an upper mold and a lower mold, includes a step of supplying the glass material to be molded having temperature higher than a glass transition point to a molding surface of the lower mold, a step of molding planar glass by press-molding the supplied glass material to be molded by the lower mold and the upper mold, a step of removing the upper mold from the planar glass and taking out the planar glass on the molding surface of the lower mold from the molding surface of the lower mold, a step of cooling the planar glass to temperature lower than a strain point of the glass, and a step of annealing the provided planar glass. A method of fabricating a glass substrate by at least polishing the planar glass provided by the method. An information recording medium using the glass substrate.
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