Patents by Inventor Kinzo Yamamura

Kinzo Yamamura 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).

  • Set of current collecting elements used for a current collecting roller
    Patent number: 4031990
    Abstract: There is disclosed a set of current collecting elements used for a current collecting roller which feeds current to a transportation apparatus. The set of current collecting elements comprises a plurality of electroconductive elements arranged in juxtaposed relation to one another, said electroconductive elements being tightly and rigidly secured to each other by a lead wire at the lower portion of said elements.The current collecting roller using the present sets of current collecting elements is protected from being damaged by heat being generated between current collecting member and each of the electroconductive elements.
    Type: Grant
    Filed: November 14, 1975
    Date of Patent: June 28, 1977
    Assignees: Japanese National Railways, Sumitomo Electric Industries, Ltd., Sumitomo Rubber Industry, Ltd.
    Inventors: Kazumi Matsui, Takashi Umemori, Yutaka Shibata, Kinzo Yamamura, Tamisuke Kimura, Tomokazu Kashiwara