Patents by Inventor Ryutaro SUGAWARA

Ryutaro SUGAWARA 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).

  • ORGANIC ELECTROLUMINESCENT ELEMENT, AND LIGHTING DEVICE AND DISPLAY DEVICE EACH USING SAME
    Publication number: 20160336522
    Abstract: Provided is an organic electroluminescent element containing an anode, a cathode, and an organic functional layer containing one or a plurality of light-emitting layers, the organic functional layer being interposed between the anode and the cathode, wherein at least one of the light-emitting layers contains a compound having two condensed aromatic rings bonded to each other with a linking group; and the condensed aromatic rings form a ?-? stacking structure in the molecule.
    Type: Application
    Filed: January 28, 2015
    Publication date: November 17, 2016
    Inventors: Ryutaro SUGAWARA, Takamune HATTORI, Hiroshi KITA