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. 31, 2010
Filed:
Aug. 04, 2006
Shoichi Kishimoto, Tokyo, JP;
Haruki Niida, Tokyo, JP;
Akihiro Koyama, Tokyo, JP;
Yukihito Nagashima, Tokyo, JP;
Shoichi Kishimoto, Tokyo, JP;
Haruki Niida, Tokyo, JP;
Akihiro Koyama, Tokyo, JP;
Yukihito Nagashima, Tokyo, JP;
AvanStrate Inc., Mie, JP;
Abstract
A glass composition which is reduced in the amount of residual bubbles and is produced using smaller amounts of an environmentally unfriendly component such as arsenic oxide and antimony oxide. This glass composition contains, in terms of mass %: 40-70% SiO; 5-20% BO; 10-25% AlO; 0-10% MgO; 0-20% CaO; 0-20% SrO; 0-10% BaO; 0-0.5% LiO; 0-1.0% NaO; 0-1.5% KO; and 0-1.5%, excluding 0%, Cl, LiO+NaO+KO exceeding 0.06%. The glass composition can be produced suitably using, for example, a chloride as part of the raw glass materials.