Patents by Inventor Yoshihiro Koguchi

Yoshihiro Koguchi 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).

  • Single crystal pulling device and method and superconducting magnet
    Patent number: 6984264
    Abstract: A single crystal pulling device is composed of a cylindrical pulling furnace, a crucible disposed in the pulling furnace in which a single crystal material for a semiconductor is poured, a cylindrical vacuum vessel coaxially disposed around the pulling furnace, and a superconducting magnet composed of a plurality pairs of coils arranged inside the vacuum vessel so as to generate magnetic field. The superconducting coils are arranged on the same horizontal plane of the cylindrical vacuum vessel, and each of the paired superconducting coils includes coils set so as to oppose to each other with respect to a central axis of the cylindrical vacuum vessel so that one coil of one pair of coils and one coil of another pair of coils adjacent to that one pair of coils constitutes a set angle, directing towards the inside of the cylindrical vessel, in a range of 100° to 130°.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: January 10, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tsutomu Shimonosono, Yoshihiro Koguchi, Takashi Sasaki
  • Single crystal pulling device and method and superconducting magnet
    Publication number: 20040107894
    Abstract: A single crystal pulling device is composed of a cylindrical pulling furnace, a crucible disposed in the pulling furnace in which a single crystal material for a semiconductor is poured, a cylindrical vacuum vessel coaxially disposed around the pulling furnace, and a superconducting magnet composed of a plurality pairs of coils arranged inside the vacuum vessel so as to generate magnetic field. The superconducting coils are arranged on the same horizontal plane of the cylindrical vacuum vessel, and each of the paired superconducting coils includes coils set so as to oppose to each other with respect to a central axis of the cylindrical vacuum vessel so that one coil of one pair of coils and one coil of another pair of coils adjacent to that one pair of coils constitutes a set angle, directing towards the inside of the cylindrical vessel, in a range of 100° to 130°.
    Type: Application
    Filed: May 30, 2003
    Publication date: June 10, 2004
    Applicant: KABUSHIKI KAISHA TOSHIBA, Tokyo, Japan
    Inventors: Tsutomu Shimonosono, Yoshihiro Koguchi, Takashi Sasaki