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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10329185 B1

PDFFull Text
Date of Patent:
Jun. 25, 2019

Filed:

Feb. 03, 2016

Glass for laser processing and method for producing perforated glass using same

Applicant:

Nippon Sheet Glass Company, Limited, Tokyo, JP;

Inventors:

Teruhide Inoue, Kanagawa, JP;

Koichi Sakaguchi, Osaka, JP;

Hirotaka Koyo, Hyogo, JP;

Assignee:

NIPPON SHEET GLASS COMPANY, LIMITED, Tokyo, JP;

Attorney:

Hamre, Schumann, Mueller & Larson, P.C.

Primary Examiner:

Elizabeth A Bolden

Int. Cl.
CPC ...
C03C 3/091 (2006.01); C03C 3/093 (2006.01); B23K 26/352 (2014.01); C03C 15/00 (2006.01); B23K 26/53 (2014.01); C03C 23/00 (2006.01); B23K 26/00 (2014.01); B23K 26/0622 (2014.01); B23K 26/382 (2014.01); C03C 3/095 (2006.01); B23K 103/00 (2006.01); B23K 101/40 (2006.01);
U.S. Cl.
CPC ...
C03C 3/091 (2013.01); B23K 26/0006 (2013.01); B23K 26/0622 (2015.10); B23K 26/352 (2015.10); B23K 26/382 (2015.10); B23K 26/53 (2015.10); C03C 3/093 (2013.01); C03C 3/095 (2013.01); C03C 15/00 (2013.01); C03C 23/0025 (2013.01); B23K 2101/40 (2018.08); B23K 2103/54 (2018.08);
Abstract

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 having a glass composition including, in mol %: 45.0%≤SiO≤70.0%; 2.0%≤BO≤20.0%; 3.0%≤AlO≤20.0%; 0.1%≤CuO≤2.0%; 0%≤TiO≤15.0%; and 0%≤ZnO≤9.0%, wherein a relationship of 0≤LiO+NaO+KO<2.0% is satisfied.

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