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. 12, 2008
Filed:
Jul. 05, 2005
Applicants:
Yasutomi Iwahashi, Yokohama, JP;
Akio Koike, Yokohama, JP;
Inventors:
Yasutomi Iwahashi, Yokohama, JP;
Akio Koike, Yokohama, JP;
Assignee:
Asahi Glass Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/06 (2006.01); C03C 3/076 (2006.01); C03B 20/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A silica glass containing TiO, which has a fictive temperature of at most 1,200° C., an OH group concentration of at most 600 ppm and a coefficient of thermal expansion of 0±200 ppb/° C. from 0 to 100° C.