Title:
GLASS TUBE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/034110
Kind Code:
A1
Abstract:
A production method for glass tubes (11), comprising: a step in which a through-hole (15) is formed in a tube wall on a first end (16a) side of a glass tube (16); and a step in which, after the through-hole (15) has been formed, a sealed section (13) is formed as a result of a prescribed location from the first end (16a) of the glass tube (16) to the through-hole (15) being heat-treated.
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Inventors:
SATO MASAHIKO (JP)
Application Number:
PCT/JP2017/026714
Publication Date:
February 22, 2018
Filing Date:
July 24, 2017
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
C03B23/18
Domestic Patent References:
| WO2013111432A1 | 2013-08-01 |
Foreign References:
| US3212870A | 1965-10-19 | |||
| JP2004010475A | 2004-01-15 | |||
| JPH04265241A | 1992-09-21 |
Other References:
See also references of EP 3502066A4
Attorney, Agent or Firm:
ONDA, Makoto et al. (JP)
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