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:
Sep. 29, 2015
Filed:
Mar. 27, 2013
Tokuyama Corporation, Yamaguchi, JP;
Yutaka Fukunaga, Yamaguchi, JP;
Yukihiro Kanechika, Yamaguchi, JP;
Tokuyama Corporation, Yamaguchi, JP;
Abstract
A method for producing an aluminum nitride powder includes mixing an alumina powder having an average particle diameter of not more than 5 μm; an eutectic melting agent; and a carbon powder are mixed to obtain a mixture thereof, and reductively nitriding the mixture by firing at a higher temperature than a melting point of the eutectic melting agent, while maintaining a nitrogen ratio within a range of 60 to 85 vol % in an atmosphere of mixed gases of nitrogen and carbon monoxide until a nitriding ratio of the alumina powder reaches at least 50%.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile