Patents by Inventor Nobuhisa Osada

Nobuhisa Osada 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).

  • Spot control type automatic train stop system utilizing ground control units common to more than one block signal
    Patent number: 4095764
    Abstract: A spot control type automatic train stop system utilizing ground control units common to more than one block section signal. For at least one particular block section signal, one or more of the ground units positioned in a block section which precedes the particular block section signal by at least one block section is in a position in the preceding block section common to the position of the basic pattern generating ground unit for the particular block section signal.
    Type: Grant
    Filed: November 10, 1976
    Date of Patent: June 20, 1978
    Assignee: Japanese National Railways
    Inventors: Nobuhisa Osada, Hideo Nakamura