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Title:
GLASS SUBSTRATE
Document Type and Number:
WIPO Patent Application WO/2019/093087
Kind Code:
A1
Abstract:
A glass substrate 1 has a first major surface 2 and a second major surface 3. The first major surface 2 has a surface roughness Ra of 0.2 nm or less and the second major surface 3 has a surface roughness Ra in a center region 4 thereof of 0.3 to 1.0 nm. The second major surface 3 has, in an outer peripheral region 5, a roughened region A that has a surface roughness Ra that is greater than the surface roughness Ra of the center region 4 by 0.2 nm or more.

Inventors:
OKU HAYATO (JP)
YAMAMOTO YOSHIHARU (JP)
NAKATSUKA HIROKI (JP)
Application Number:
PCT/JP2018/038676
Publication Date:
May 16, 2019
Filing Date:
October 17, 2018
Export Citation:
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Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
C03C15/00
Domestic Patent References:
WO2010128673A12010-11-11
Foreign References:
JP2015202997A2015-11-16
JP2018052805A2018-04-05
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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