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:
Nov. 20, 2012
Filed:
Dec. 24, 2008
Noboru Chikusa, Yokkaichi, JP;
Teruhisa Kitagawa, Suzuka, JP;
Masaki Ito, Yokkaichi, JP;
Takanori Ito, Ichinomiya, JP;
Noboru Chikusa, Yokkaichi, JP;
Teruhisa Kitagawa, Suzuka, JP;
Masaki Ito, Yokkaichi, JP;
Takanori Ito, Ichinomiya, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
Abstract
An apparatus for producing single crystal silicon comprising: an induction heating coil that is disposed around the polycrystalline silicon rod for fusing the polycrystalline silicon rod; an exothermic ring that has a quartz-coated member covering the conductive member; a support member that supports the exothermic ring and passes through a wall of the housing in a rotatable manner; an operating device that rotates the support member and reciprocates the exothermic ring between a heating position where the exothermic ring is positioned close to the induction heating coil and a stand-by position where the exothermic ring is receded from the heating position; a sealing member that is provided between the wall of the housing and the support member and maintains the hermitic therebetween; and a cooling flow path that is formed in the support member and flows a cooling medium.