Patents by Inventor Masato Yabu

Masato Yabu 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).

  • Electromagnet and operating mechanism of switch therewith
    Publication number: 20010017288
    Abstract: An electromagnet according to the present invention comprises a fixed core 1 formed by side legs 2b provided on both sides of a central leg 2a produced by laminating a plurality of steel plates, and a yoke 2c for connection between the central leg and the side legs, the central leg, the side legs, and the yoke being integral with each other; an exciting coil 4 wound around the central leg 2a; and a moving core 3X opposed to the central leg and the exciting coil which is moved along the side legs; wherein length of the side legs 2b is longer than that of the central leg; and the moving core 3X opposed to the central leg 2a has a projection 3a extending to the central leg side. Therefore, occurrence of eddy current is reduced and attractive force is increased.
    Type: Application
    Filed: February 23, 2001
    Publication date: August 30, 2001
    Inventors: Ayumu Morita, Tooru Tanimizu, Masato Yabu