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.:
Date of Patent:
Dec. 03, 2019
Filed:
Jul. 22, 2015
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 23/00 (2006.01); C03C 3/06 (2006.01); C03C 3/085 (2006.01); C03C 4/08 (2006.01); C03C 17/02 (2006.01); G02B 5/20 (2006.01); G02B 5/22 (2006.01);
U.S. Cl.
CPC ...
C03C 23/0095 (2013.01); C03C 3/06 (2013.01); C03C 3/085 (2013.01); C03C 4/082 (2013.01); C03C 17/02 (2013.01); G02B 5/208 (2013.01); G02B 5/226 (2013.01); C03C 2217/425 (2013.01); C03C 2218/32 (2013.01);
Abstract
Provided is a glass composition having an infrared absorbing function, water resistance, heat resistance, and a low expansion coefficient, the glass composition including the following components (a) to (c): (a) 0.1 wt % or more to 14.0 wt % or less of an intermediate oxide; (b) 0.1 wt % or more to 14.0 wt % or less of CuO; and (c) 80.0 wt % or more to 99.8 wt % or less of silica, in which a total of a content ratio of the intermediate oxide and a content ratio of the CuO is from 0.2 wt % or more to 20 wt % or less.