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. 02, 2012
Filed:
May. 25, 2009
Shohei Takami, Yokohama, JP;
Tsutomu Shimonosono, Yokohama, JP;
Tomoko Ota, Yokohama, JP;
Yuuji Minemoto, Yokohama, JP;
Yoshifumi Nagamoto, Yokohama, JP;
Makoto Ushijima, Yokohama, JP;
Shohei Takami, Yokohama, JP;
Tsutomu Shimonosono, Yokohama, JP;
Tomoko Ota, Yokohama, JP;
Yuuji Minemoto, Yokohama, JP;
Yoshifumi Nagamoto, Yokohama, JP;
Makoto Ushijima, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A superconducting magnet device for a single crystal pulling apparatus is arranged outside a pulling furnace containing a crucible for melting a single crystal material therein so as to apply a magnetic field to the melted single crystal material. The superconducting magnet device for a single crystal pulling apparatus includes a cryostat containing a superconducting coil therein, and a refrigerator port arranged on the outer circumferential surface of the cryostat and provided with a cryogenic refrigerator that cools the superconducting coil. The cryogenic refrigerator is provided in a region of the outer surface region of the cryostat at which the intensity of the magnetic field generated by the superconducting coil is weak.