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. 07, 2023
Filed:
Mar. 05, 2020
Applicant:
Ohara Inc., Kanagawa, JP;
Inventors:
Assignee:
OHARA INC., Kanagawa, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 10/00 (2006.01); C03B 27/03 (2006.01); C03C 21/00 (2006.01);
U.S. Cl.
CPC ...
C03C 10/0027 (2013.01); C03B 27/03 (2013.01); C03C 21/002 (2013.01); C03C 2204/00 (2013.01);
Abstract
To provide an inorganic composition article containing at least one kind selected from α-cristobalite and α-cristobalite solid solution as a main crystal phase, in which by mass % in terms of oxide, a content of a SiOcomponent is 50.0% to 75.0%, a content of a LiO component is 3.0% to 10.0%, a content of an AlOcomponent is 5.0% or more and less than 15.0%, and a total content of the AlOcomponent and a ZrOcomponent is 10.0% or more, and a surface compressive stress value is 600 MPa or more.