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:
Dec. 18, 2018
Filed:
Feb. 18, 2016
Applicant:
Ngk Insulators, Ltd., Aichi-prefecture, JP;
Inventors:
Assignee:
NGK INSULATORS, LTD., Aichi-prefecture, JP;
Primary Examiner:
Int. Cl.
CPC ...
C30B 19/02 (2006.01); C30B 9/10 (2006.01); C30B 19/10 (2006.01); C30B 29/40 (2006.01);
U.S. Cl.
CPC ...
C30B 19/02 (2013.01); C30B 9/10 (2013.01); C30B 19/10 (2013.01); C30B 29/406 (2013.01);
Abstract
It is produced a crystal of a nitride of a group 13 element in a melt including the group 13 element and a flux including at least an alkali metal under atmosphere comprising a nitrogen-containing gas. An amount of carbon is made 0.005 to 0.018 atomic percent, provided that 100 atomic percent is assigned to a total amount of said flux, said group 13 element and carbon in said melt.