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. 31, 1988
Filed:
Jul. 27, 1987
Applicant:
Inventors:
Hideo Shingu, Kyoto, JP;
Ryotatsu Otsuka, Sakai, JP;
Shigemi Tanimoto, Sakai, JP;
Kazuo Toyoda, Sakai, JP;
Assignee:
Showa Aluminum Corporation, Sakai, JP;
Primary Examiner:
Int. Cl.
CPC ...
C30B / ;
U.S. Cl.
CPC ...
156624 ; 156D / ; 210774 ;
Abstract
Crude silicon is purified by melting the crude silicon, maintaining the molten silicon above the solidification temperature thereof in an inert gas atmosphere, and rotating a hollow rotary cooling member as immersed in the molten silicon while introducing a cooling fluid into the cooling member to cause high-purity silicon to crystallize on the outer surface of the cooling member.
Shingu, Hideo. (1988). Process and apparatus for purifying silicon (U.S. Patent No. 4747906). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4747906
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile