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. 27, 2006
Filed:
Sep. 08, 2003
Yuji Akimoto, Fukuoka, JP;
Shinichi Ono, Fukuoka, JP;
Kazuro Nagashima, Ohnojo, JP;
Masayuki Maekawa, Sasaguri-machi, JP;
Hidenori Ieda, Dazaifu, JP;
Yuji Akimoto, Fukuoka, JP;
Shinichi Ono, Fukuoka, JP;
Kazuro Nagashima, Ohnojo, JP;
Masayuki Maekawa, Sasaguri-machi, JP;
Hidenori Ieda, Dazaifu, JP;
Shoei Chemical, Inc., Tokyo, JP;
Abstract
A method in which a metal powder is produced by ejecting a thermally decomposable metal compound powder into a reaction vessel through a nozzle together with a carrier gas under the condition V/S>600, where V is the flow rate of the carrier gas per unit time (liter/min), and S is the cross-sectional area of the nozzle opening part (cm), and heating this metal powder at a temperature which is higher than the decomposition temperature of the metal compound powder and not lower than (Tm−200)° C., where Tm is the melting point of the metal, in a state where the metal compound powder is dispersed in the gas phase at a concentration of 10 g/liter or less. The method provides a fine, spherical, highly-crystallized metal powder which has a high purity, high density, high dispersibility and extremely uniform particle size, at low cost and using a simple process.