Patents by Inventor Hidenao Hatanaka

Hidenao Hatanaka 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 electric rotary machine having grooved insulation for carrying coolant
    Patent number: 4739202
    Abstract: A rotor for a superconducting electric rotary machine comprises a coil supporting tube, a superconducting wire constituting a superconducting field coil, in-line insulators disposed between the laterally adjacent lines of the wound wire and layer insulators between the vertically adjacent layers of the wound wire of the coil, wherein at least one of the line insulators and the layer insulators is formed by a grooved insulating material or a perforated insulating material.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: April 19, 1988
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hidenao Hatanaka, Akinori Ueda, Toshiki Hirao, Susumu Maeda, Kouichi Ooshita, Mitsuhiro Uchida