Patents by Inventor Miguel G. Tristani-Kendra

Miguel G. Tristani-Kendra 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 device with grey scale
    Patent number: 5062691
    Abstract: A ferroelectric liquid crystal device comprising a transparent substrate, an opposed substrate, the substrates disposed to provide a non-helicoidal alignment of the ferroelectric liquid crystal material, a ferroelectric liquid crystal material disposed between the substrates and electrodes on the substrates to define one or a plurality of pixels, each pixel exhibiting controlled continuously variable light transmission as a function of applied field and wherein the molecular orientation of the liquid crystal material is continuously variable and controllable.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: November 5, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Miguel G. Tristani-Kendra, George Papapolymerou