Patents by Inventor Masahisa Kobukuro

Masahisa Kobukuro 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).

  • Electromagnetic contactor
    Patent number: 4565986
    Abstract: An electromagnetic contactor having normally open and normally closed contact pairs 22, 26 includes a movable crossbar 12 having apertures 14 with sloping guide surface 18', 18" for guiding movable contact members 16 disposed in the apertures. These sloping surfaces serve to jam the crossbar against the base 10 of the contactor when the crossbar is moved in a direction to open fused contact pairs, to thereby prevent the normally open and normally closed contact pairs from being closed at the same time.
    Type: Grant
    Filed: August 27, 1984
    Date of Patent: January 21, 1986
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shigeharu Otsuka, Yuji Mizuno, Tomoharu Hasegawa, Masahisa Kobukuro