Patents by Inventor Ryouichi Ukai

Ryouichi Ukai 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).

  • Composite strand for transmitting electric or optical signals
    Patent number: 4782196
    Abstract: A support strand is formed of a non-extensible thread wound around an elastic thread in order to restrain the extension of the non-extensible thread within such a limit that the coil of the wound, non-extensible thread can follow movement of the elastic thread. A signal transmitting strand is further wound around the outer surface of the support strand to form the composite strand.
    Type: Grant
    Filed: May 25, 1984
    Date of Patent: November 1, 1988
    Assignee: Maruichi Sangyo Kabushiki Kaisha
    Inventor: Ryouichi Ukai