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:
Apr. 28, 2009
Filed:
Dec. 20, 2005
Applicants:
Tatsuo Nagashima, Yokohama, JP;
Naoki Sugimoto, Yokohama, JP;
Seiki Ohara, Yokohama, JP;
Tomoharu Hasegawa, Yokohama, JP;
Inventors:
Tatsuo Nagashima, Yokohama, JP;
Naoki Sugimoto, Yokohama, JP;
Seiki Ohara, Yokohama, JP;
Tomoharu Hasegawa, Yokohama, JP;
Assignee:
Asahi Glass Company, Limited, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 3/15 (2006.01); C03C 3/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A non-lead optical glass consisting essentially of, as represented by mol %, from 45 to 75% of BiO, from 12 to 45% of BO, from 1 to 20% of GaO, from 1 to 20% of InO, from 0 to 20% of ZnO, from 0 to 15% of BaO, from 0 to 15% of SiO+AlO+GeO, from 0 to 15% of MgO+CaO+SrO, from 0 to 10% of SnO+TeO+TiO+ZrO+TaO+YO+WOand from 0 to 5% of CeO, wherein GaO+InO+ZnO≧5%. An optical fiber comprising the above non-lead optical glass as a core.