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. 26, 2013
Filed:
Nov. 14, 2011
Applicants:
Akio Koike, Tokyo, JP;
Takahiro Mitsumori, Tokyo, JP;
Yasutomi Iwahashi, Tokyo, JP;
Tomonori Ogawa, Tokyo, JP;
Inventors:
Akio Koike, Tokyo, JP;
Takahiro Mitsumori, Tokyo, JP;
Yasutomi Iwahashi, Tokyo, JP;
Tomonori Ogawa, Tokyo, JP;
Assignee:
Asahi Glass Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03B 25/00 (2006.01); C03B 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for production of a TiO—SiOglass body, comprising a step of, when an annealing point of a TiO—SiOglass body after transparent vitrification is taken as T(° C.), holding the glass body after transparent vitrification in a temperature region of from T−90(° C.) to T−220(° C.) for 120 hours or more.