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:
Feb. 10, 2004
Filed:
Mar. 29, 2001
Applicant:
Inventors:
Takashi Ota, Kasugai, JP;
Kazutoshi Tohyama, Nakatsugawa, JP;
Masashi Fukuyama, Inuyama, JP;
Akiyoshi Ide, Kasugai, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 1/012 ; C03C 3/085 ;
U.S. Cl.
CPC ...
C03C 1/012 ; C03C 3/085 ;
Abstract
A SiO —Al O —Li O component-based glass material, which comprises, as basic components, SiO : 60-63 wt %; Al O : 23-25 wt %; and Li O: 4-5 wt % and, as modifying components, ZrO : 1.5-2.5 wt %; TiO : 0.5-2.5 wt %; MgO: 0.5-1.5 wt %; ZnO: 0.5-1.2 wt %; Na O: 0.5-2.0 wt %; and K O: 0.5-2.0 wt %, and further comprises any one of BaO: 0.5-1.0 wt, CaO: 1.0-2.0 wt %, and B O : 0.01-1.0 wt %. This can be reheat-formed in a glass state and has a low thermal expansion coefficient.