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. 01, 2017
Filed:
Nov. 29, 2013
Applicant:
Hoya Corporation, Tokyo, JP;
Inventors:
Assignee:
HOYA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/247 (2006.01); G02B 3/00 (2006.01); G02B 1/00 (2006.01); C03C 21/00 (2006.01); C03C 23/00 (2006.01);
U.S. Cl.
CPC ...
C03C 3/247 (2013.01); C03C 21/001 (2013.01); C03C 23/008 (2013.01); G02B 1/00 (2013.01); G02B 3/00 (2013.01);
Abstract
A glass article includes P, Al, an alkali earth metal, F and O, wherein the content of P and O is greater at the surface side of the glass article than the inner side thereof and the content of the alkali earth metal and F is less at the surface side of the glass article than the inner side thereof.