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:
May. 20, 2008
Filed:
Jul. 26, 2002
Applicants:
Shenglei Che, Tokyo, JP;
Ikuka Chiba, Tokyo, JP;
Shigeo Okamoto, Tokyo, JP;
Tomohiro Sogabe, Tokyo, JP;
Inventors:
Shenglei Che, Tokyo, JP;
Ikuka Chiba, Tokyo, JP;
Shigeo Okamoto, Tokyo, JP;
Tomohiro Sogabe, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/468 (2006.01); C08K 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a production method of spherical oxide powder which includes a feeding step in which a granular powder composed of an oxide composition is fed into a combustion flame together with a carrier gas; a melting step in which said fed granular powder is melted in said combustion flame to obtain a melt; and a solidifying step in which said melt is solidified by being moved and placed outside said combustion flame.