Patents by Inventor Yoshifumi Nagamoto

Yoshifumi Nagamoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • SUPERCONDUCTING MAGNET DEVICE FOR SINGLE CRYSTAL PULLING APPARATUS
    Publication number: 20110077161
    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.
    Type: Application
    Filed: May 25, 2009
    Publication date: March 31, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Shohei Takami, Tsutomu Shimonosono, Tomoko Ota, Yuuji Minemoto, Yoshifumi Nagamoto, Makoto Ushijima