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:
Oct. 17, 1995
Filed:
Oct. 27, 1993
Applicant:
Inventors:
Hideo Maeda, Eihame, JP;
Hidekimi Kadokura, Eihame, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
75 1067 ; 75688 ;
Abstract
A process for the purification of a raw gallium material to produce a purified gallium material having a higher purity than that of the raw gallium material having steps of: maintaining the raw gallium material in its melted condition within a vessel having a means, for example a tube, positioned at or near a center portion of an inside of the vessel, through which means a cooling medium is passed, and keeping the raw gallium material in the vessel at a controlled temperature so that the purified gallium material is deposited on an outer surface of the means.