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Patent Searching and Data


Title:
CIRCULAR GLASS PLATE AND PRODUCTION METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2017/187675
Kind Code:
A1
Abstract:
In this production method for a circular glass plate, a circular glass plate is produced from a circular plane glass plate 1 which has, on an outer peripheral edge 4, a notched portion 2 and a non-notched portion 3 where no notched portion 2 is formed. This production method for a circular glass plate includes a processing step of heating the notched portion 2 and the non-notched portion 3 to a temperature higher than the softening point by scanning the outer peripheral edge 4 with a laser.

Inventors:
ODANI OSAMU (JP)
IKEMOTO MASAYUKI (JP)
Application Number:
PCT/JP2017/002063
Publication Date:
November 02, 2017
Filing Date:
January 23, 2017
Export Citation:
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Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
C03B29/04; B23K26/354; C03B29/02; C03C23/00
Domestic Patent References:
WO2003015976A12003-02-27
Foreign References:
JP2004207606A2004-07-22
JP2008041985A2008-02-21
JP2005194137A2005-07-21
JP2003160348A2003-06-03
JP2000344551A2000-12-12
JPH02241684A1990-09-26
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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