Patents by Inventor Naonobu Etoh

Naonobu Etoh 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).

  • Luminescent compound emitting white light, illuminator and organic el element emitting white light
    Publication number: 20050118454
    Abstract: The objectives of this invention are to provide a luminescent compound capable of emitting white light by itself, and an illuminator and organic EL element that emit white light by the employment of the luminescent compound. The illuminator and the organic EL element are capable of emitting white light at a strong luminance for a long time. The luminescent compound is represented by the following formula (1) or (2): The illuminator and the organic EL element comprise a substrate on which an electrode has been formed and a luminescent layer including the compound, said luminescent layer being placed on the substrate.
    Type: Application
    Filed: January 17, 2003
    Publication date: June 2, 2005
    Inventors: Tadao Nakaya, Atsushi Ikeda, Tomoyuki Saikawa, Naonobu Etoh, Yoshihiro Kimura, Takao Yamauchi