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:
Jul. 29, 2025
Filed:
May. 11, 2021
Applicant:
Nippon Electric Glass Co., Ltd., Otsu, JP;
Inventors:
Tomoko Enomoto, Otsu, JP;
Naoki Fujita, Otsu, JP;
Assignee:
NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/155 (2006.01); C03C 3/12 (2006.01); C03C 3/15 (2006.01);
U.S. Cl.
CPC ...
C03C 3/155 (2013.01); C03C 3/127 (2013.01); C03C 3/15 (2013.01); C03C 3/125 (2013.01); C03C 2218/13 (2013.01);
Abstract
A glass material less likely to cause inconveniences, such as crystallization and the generation of devitrified matters, while holding desired optical properties, has a refractive index of 1.8 or more and a content of AlOof over 0 to 500 mass ppm.