Patents by Inventor Vasily P. Usachev

Vasily P. Usachev 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).

  • Liquid-crystal indicator
    Patent number: 4128314
    Abstract: The present invention relates to a liquid-crystal indicator, wherein a layer of nematic liquid crystals is interposed between two transparent multi-layered blocks. Each of the multi-layered blocks comprises successively disposed, in a direction from the layer of the liquid crystals, a layer of germanium oxide ensuring a twisted structure of the liquid crystals, a current-conducting layer, a dielectric layer and a polarizing layer. The use of germanium oxide makes it possible to lower the control voltage of the indicator to values of below 1.8 V.
    Type: Grant
    Filed: June 10, 1977
    Date of Patent: December 5, 1978
    Inventors: Vladimir P. Sevostiyanov, Valery V. Astakhov, Vasily P. Usachev