Patents Assigned to Japan Air Lines Company, Ltd.
  • Patent number: 4123976
    Abstract: An improvement of the attractive type electromagnet device for the magnetic levitation running vehicles. Each of the electromagnets arranged in two longitudinal rows has a U-shape-cross-section core of which opposite ends are each slanted to face downwards and a coil so wound around each leg portion of the core that the bent portions of the coil bundle are each downwardly dropped. Thus every adjacent two electromagnets can be longitudinally closely arranged at the upper sharpened edges of said slanted core ends and at the upper outer edges of said coil bundle downwardly drooped bent portions. Thus it is possible to overcome defaults of the prior arts, namely magnetic flux interruptions and so on.
    Type: Grant
    Filed: April 27, 1977
    Date of Patent: November 7, 1978
    Assignee: Japan Air Lines Company, Ltd.
    Inventors: Shinji Nakamura, Kiyoshi Mihirogi