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:
Aug. 13, 2013
Filed:
Aug. 11, 2009
Hideo Yamauchi, Otsu, JP;
Tomohiro Nagakane, Otsu, JP;
Hideo Yamauchi, Otsu, JP;
Tomohiro Nagakane, Otsu, JP;
Nippon Electric Glass Co., Ltd., Shiga, JP;
Abstract
An LAS-type float glass, which is substantially free of AsOand/or SbOand precipitates a β-quartz solid solution or a β-spodumene solid solution as a main crystal by heat treatment, wherein, when C[mass %] represents the content of SnOat a glass surface, C[mass %] represents the content of SnOat a depth of 0.5 mm from the glass surface, and k [mass %/mm] represents an SnOconcentration gradient defined by k=(C-C)/0.5, the LAS-type crystallized glass satisfies relationships of K≦2 and C≦0.8 with respect to at least one surface thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile