Patents by Inventor Takesi Sakurada

Takesi Sakurada 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).

  • Signal transmitting equipment for elevator
    Patent number: 4789049
    Abstract: This invention relates to an elevator signal transmitting equipment characterized in that a shielding body of a magnetic shielding material envelops a transmitting line laid along a shaft through which a cage travels and a portion of a coupling device extending toward said transmitting line, the transmission and reception of signals being realized through the magnetic coupling between said transmitting line and said coupling device to control the operation of said cage, a path through which a part of said coupling device travels being left not enveloped.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: December 6, 1988
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Eiki Watanabe, Takesi Sakurada