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:
Jan. 22, 2002
Filed:
Nov. 10, 1999
Nippon Sheet Glass Co., Ltd., Osaka, JP;
Abstract
A colored film-coated ultraviolet/infrared absorbent glass plate is formed of base glass, colorants, and a colored film. The base glass includes 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. % total amount of MgO and CaO; 10 to 20 wt. % total amount of Na O and K O; 0.05 to 0.3 wt. % of SO ; and 0 to 5 wt. % B O . The colorants includes 0.35 to 0.55 wt. % total iron oxide (T-Fe O ) expressed as Fe O ; 0.08 to 0.15 wt. % FeO; 0.8 to 1.5 wt. % CeO ; and 0 to 0.5 wt. % TiO . FeO expressed as Fe O is equal to or more than 20 wt. % and less than 27 wt. % of T-Fe O . The colored film has a red color shade with a thickness between 30 nm and 300 nm and includes fine particles of gold and silicon oxide of more than 50 wt. % and equal to or less than 95 wt. %. The colored film is applied onto a surface of the ultraviolet/infrared absorbent glass plate.