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. 06, 2013
Filed:
Aug. 04, 2011
Applicant:
Kenji Kitaoka, Tokyo, JP;
Inventor:
Kenji Kitaoka, Tokyo, JP;
Assignee:
Asahi Glass Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/068 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides an optical glass, containing, in % by weight on an oxide basis, 30 to 50% of PO, 18 to 43% of BaO, 2 to 12% of BO, 1.4 to 5% of AlO, more than 0 to 6% of LiO, more than 0 to 9% of LaO, 0.1 to 8% of MgO, 0 to 10% of CaO, 0 to 15% of SrO, 0 to 5% of ZnO, 0 to 7% of GdO, and 0 to 3% of SiO, and having optical constants of a refractive index nof 1.59 to 1.63 and an Abbe number νof 63 to 68.
Kitaoka, Kenji. (2013). Optical glass (U.S. Patent No. 8501649). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8501649
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile