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. 19, 2003
Filed:
Jul. 29, 1999
Yukihito Nagashima, Osaka, JP;
Isamu Kuroda, Osaka, JP;
Mitsuhiro Kawazu, Osaka, JP;
Toshifumi Tsujino, Osaka, JP;
Nippon Sheet Glass Co., Ltd., Osaka, JP;
Abstract
An ultraviolet/infrared absorbent glass plate includes base glass including 65 to 80 wt. % SiO ; 0 to 5 wt. % Al O ; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO; 10 to 18 wt. % Na O; 0 to 5 wt. % K O; 5 to 15 wt. % a total amount of MgO and CaO; 10 to 20 wt. % a total amount of Na O and K O; 0.05 to 0.3 wt. % SO ; 0 to 5 wt. % B O ; 0 to 1 wt. % SnO ; and 0 to 350 ppm MnO; and colorants including 0.2 to 0.45 wt. % total iron oxide (T—Fe O ) expressed as Fe O ; 0.01 to 0.03 wt. % (excluding 0.03 wt. %) FeO; 0.8 to 2 wt. % CeO ; 0 to 0.003 wt. % CoO; and 0 to 1.5 wt. % TiO . FeO expressed as Fe O is 5 to 10 wt. % (excluding 10 wt. %) of T—Fe O , and the glass at any thickness in a range of 3.25 mm to 6.25 mm has visible light transmittance of equal to or more than 80% when measured by using CIE illuminant A.