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. 11, 2012
Filed:
Aug. 02, 2010
Applicant:
Michiko Ogino, Sagamihara, JP;
Inventor:
Michiko Ogino, Sagamihara, JP;
Assignee:
Ohara Inc., Sagamihara-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C 13/04 (2006.01); C03C 3/089 (2006.01); C03C 3/078 (2006.01); C03C 3/064 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical glass has a refractive index (nd) of 1.60 or over and excellent transmittance and internal quality. The optical glass comprises 0.1-4 mass % of TaOto total mass of glass calculated on oxide basis, has ratio of 0.95<TaO/(TaO+(ZrO)+TiO+NbO+WO)×5)≦1.00, and further comprises SiO+BO+AlO+BaO in a total amount of 81% or over.