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:
Jun. 04, 2013
Filed:
Feb. 25, 2011
Kazuhiro Ito, Tokyo, JP;
Satoru Watanabe, Tokyo, JP;
Naomichi Miyakawa, Tokyo, JP;
Setsuro Ito, Tokyo, JP;
Kazuhiro Ito, Tokyo, JP;
Satoru Watanabe, Tokyo, JP;
Naomichi Miyakawa, Tokyo, JP;
Setsuro Ito, Tokyo, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
The present invention relates to a mayenite-type compound in which a part of Ca of a mayenite-type compound containing Ca, Al and oxygen is substituted by at least one kind of an atom M selected from the group consisting of Be, Mg and Sr, in which the mayenite-type compound has an atom number ratio represented by M/(Ca+M) of from 0.01 to 0.50, and at least a part of free oxygen ions in a mayenite-type crystal structure are substituted by anions of an atom having electron affinity smaller than that of an oxygen atom.