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:
Nov. 29, 2011
Filed:
Jul. 07, 2006
Ryousuke Sawa, Osaka, JP;
Junko Abe, Osaka, JP;
Tomoko Atagi, Osaka, JP;
Masanobu Itou, Hyogo, JP;
Tomoko Akai, Hyogo, JP;
Masaru Yamashita, Osaka, JP;
Ryousuke Sawa, Osaka, JP;
Junko Abe, Osaka, JP;
Tomoko Atagi, Osaka, JP;
Masanobu Itou, Hyogo, JP;
Tomoko Akai, Hyogo, JP;
Masaru Yamashita, Osaka, JP;
Abstract
A glass composition for lamps includes the following by weight percent: SiO: 60-75 wt %; CeO+CeO: 0.01-5.2 wt %; SnO+SnO: 0.01-5.2 wt %; AlO: 0.5-6 wt %; BO: 0-5 wt %; LiO+NaO+KO: 13-20 wt %; MgO: 0.5-5 wt %; CaO: 1-10 wt %; SrO: 0-10 wt %; BaO: 0-10 wt %; ZnO: 0-10 wt %; FeO+FeO: 0-0.2 wt %; and TiO: 0-1 wt %. The glass composition for lamps that contains no lead or antimony achieves high ultraviolet screening capacity, ensuring fewer occurrences of initial coloring and ultraviolet ray caused coloring of glass.