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:
May. 24, 2011
Filed:
Aug. 05, 2008
Applicants:
Xuelu Zou, Tokyo, JP;
Yasuhiro Fujiwara, Tokyo, JP;
Yoshio Nojima, Tokyo, JP;
Inventors:
Assignee:
Hoya Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 3/064 (2006.01); C03C 3/19 (2006.01); C03C 3/145 (2006.01); C03B 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
To provide a high-refractivity high-dispersion optical glass having excellent stability An optical glass which is formed of an oxide glass containing 30 to 70 cationic % of Biand has a liquidus temperature of 800° C. or lower.