GLASS FOR LASER PROCESSING AND METHOD FOR PRODUCING PERFORATED GLASS USING SAME

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United States of America Patent

SERIAL NO

15549939

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Abstract

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The present invention provides a glass composition that allows holes with a circular contour and a smooth inner wall to be formed by a collective micro-hole-forming process using a combination of modified portion formation by ultraviolet laser irradiation and etching, the glass composition being adapted for practical continuous production. The present invention relates to a glass for laser processing, the glass including a metal oxide serving as a coloring component, the glass having a glass composition including, in mol %: 45.0%≦SiO2≦68.0%; 2.0%≦B2O3≦20.0%; 3.0%≦Al2O3≦20.0%; 0.1%≦TiO2≦5.0%; and 0%≦ZnO≦9.0%, wherein a relationship of 0≦Li2O+Na2O+K2O<2.0% is satisfied.

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Patent Owner(s)

Patent OwnerAddress
NIPPON SHEET GLASS COMPANY LIMITEDTOKYO 108-6321

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
INOUE, Teruhide Kanagawa, JP 9 20
KURACHI, Junji Hyogo, JP 37 503

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