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:
Jan. 04, 2005
Filed:
Oct. 14, 2003
Applicants:
Kishio Tayama, Akita, JP;
Shunichi Kimura, Akita, JP;
Inventors:
Kishio Tayama, Akita, JP;
Shunichi Kimura, Akita, JP;
Assignee:
Dowa Mining Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C22B 1916 ; C22B 2622 ;
U.S. Cl.
CPC ...
Abstract
A purification apparatus including a vertical stack of a feed heating zone having a feed crucible, a condensation zone having a plurality of condensation vapor passage plates, a solidification zone having a solidification crucibleand an entrapment/solidification zone having a plurality of entrapment/solidification vapor passage plates