Methods for producing substrate blank

Details Methods for producing substrate blank Methods for producing substrate blank

2007-10-15

2010-12-07

Lopez, Carlos (Department: 1791)

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

C065S105000, C065S112000

Reexamination Certificate

active

07845192

ABSTRACT:
A method for producing a thin-plate-shaped substrate blank that is an intermediate for a glass substrate, in which the occurrence of undulation is prevented and the substrate blank is produced with high accuracy, the method comprising press-molding a glass in a softened state with a mold having an upper mold member and a lower mold member to produce the thin-plate-shaped substrate blank, wherein the glass in a softened state is press-molded without causing any surrounding edge portion of the substrate blank under the production to come into contact with the mold, to produce the substrate blank at least having no notch portion.

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Machine translation of JP 08-040729 retrieved from http://www19.ipdl.ncipi.go.jp/PA1/cgi-bin/PA1INIT?1102431898753 on Aug. 15, 2006, 9 pages.

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