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. 18, 2005
Filed:
Mar. 06, 2001
Akihiro Koyama, Osaka, JP;
Isamu Kuroda, Osaka, JP;
Nobuyuki Yamamoto, Osaka, JP;
Yasunori Seto, Osaka, JP;
Akihiro Koyama, Osaka, JP;
Isamu Kuroda, Osaka, JP;
Nobuyuki Yamamoto, Osaka, JP;
Yasunori Seto, Osaka, JP;
Nippon Sheet Glass Company, Limited, Tokyo, JP;
Abstract
The present invention is to provide a high transmittance glass sheet that has a composition containing as coloring components, expressed in wt. %, 0.005 to less than 0.02% of total iron oxide in terms of FeO, less than 0.008% of FeO, and 0 to 0.25% of cerium oxide and having a ratio of FeO in terms of FeOto the total iron oxide of lower than 40%, and exhibits high visible light transmittance and solar radiation transmittance. Alternatively, a high transmittance glass sheet is provided that contains not more than 0.06% of total iron oxide and 0.025 to 0.20% of cerium oxide and has a ratio of a fluorescence intensity at 395 nm to a fluorescence intensity at 600 nm of 10% or higher when subjected to ultraviolet irradiation at a wavelength of 335 nm.