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. 27, 2003
Filed:
Sep. 27, 2001
Applicant:
Inventors:
Shigeo Morimoto, Yokohama, JP;
Hiroshi Monden, Hiratsuka, JP;
Daisuke Ebi, Omura, JP;
Toshirou Kotooka, Omura, JP;
Assignee:
Komatsu Denshi Kinzoku Kabushiki Kaisha, Hiratsuka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B 1/520 ;
U.S. Cl.
CPC ...
C30B 1/520 ;
Abstract
A device for producing single-crystal ingot, provided with coolers ( ) using a piping system through which cooling water failure caused by water leakage and at the same time to find out conditions for maximizing a production efficiency, the coolers ( ) are disposed at portions of the inner sides of thermal shielding elements ( ) and the lower ends ( ) of cooling pipes are so set as to be positioned up to 150 mm high from the surface ( ) of molten silicon liquid.