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:
Jul. 25, 1989
Filed:
Dec. 16, 1987
Applicant:
Inventors:
Hachiro Ichikawa, Shizuoka, JP;
Masanori Oguni, Shizuoka, JP;
Akira Murase, Shizuoka, JP;
Hazuo Horiba, Shizuoka, JP;
Kenichi Sakamoto, Tokyo, JP;
Mikio Kanehara, Shizuoka, JP;
Assignee:
Nippon Light Metal Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423412 ;
Abstract
A process for producing an aluminum nitride powder by reacting a mixture of alumina and carbon with a nitrogen gas, wherein the mixture of alumina and carbon being contacted with a nitrogen-containing inert gas at a temperature of 1,000.degree. to 1,400.degree. C. at a pressure of not higher than 0.1 atmosphere before a reaction is started to form aluminum nitride.