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. 05, 2017
Filed:
Sep. 26, 2014
Applicant:
Hoya Corporation, Tokyo, JP;
Inventor:
Shuhei Mikami, Tokyo, JP;
Assignee:
HOYA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/16 (2006.01); C03C 3/21 (2006.01); C03B 5/193 (2006.01); C03C 3/064 (2006.01); C03B 5/06 (2006.01); C03B 5/167 (2006.01); C03B 5/16 (2006.01);
U.S. Cl.
CPC ...
C03B 5/193 (2013.01); C03B 5/06 (2013.01); C03B 5/16 (2013.01); C03B 5/167 (2013.01); C03C 3/064 (2013.01); C03C 3/16 (2013.01); C03C 3/21 (2013.01); Y02P 40/57 (2015.11);
Abstract
An optical glass may be a phosphate based glass containing at least any one of oxides selected from TiO2, Nb2O5, WO3, and Bi2O2. The total content (HR) of the TiO2, Nb2O5, WO3, and Bi2O2 may be 35 mol % or above, the noble metal content may be less than 2.0 ppm, and the βOH value, given by the following general formula, may be 0.1 mm-1 or above: βOH=−[ln(B/A)]/t.