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:
Mar. 16, 2010
Filed:
Oct. 11, 2006
Applicant:
Kousuke Nakajima, Sagamihara, JP;
Inventor:
Kousuke Nakajima, Sagamihara, JP;
Assignee:
Ohara Inc., Sagamihara-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C 10/14 (2006.01); C03C 10/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Glass-ceramics includes LiO, AlOand SiO, have an average crystal grain diameter of a predominant crystal phase of 90 nm or below and have crystal grain diameter distribution of 20 nm or below. The glass-ceramics can be manufactured by heat treating glass comprising LiO, AlOand SiOunder a temperature within a range from 650° C. to 750° C. and then further heat treating the glass under a temperature within a range from 700° C. to 800° C. for 100-200 hours.