Patents by Inventor Yasunori Kajima

Yasunori Kajima 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).

  • Light-emitting device and its use
    Patent number: 6806641
    Abstract: A light-emitting device having a layer including an emission region and provided between an anode and a cathode wherein the anode has a visible light (with a wavelength of 380 to 780 nm) transmittance ranging from 35 to 75%, and the anode has a work function of 3.0 to 7.0 ev wherein the device has an improved contrast characteristic while keeping high luminance.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: October 19, 2004
    Assignee: Sony Corporation
    Inventors: Naoyuki Ueda, Yasunori Kajima, Shinichiro Tamura
  • Light-emitting device and its use
    Publication number: 20020008466
    Abstract: A light-emitting device comprises a layer including an emission region and provided between an anode and a cathode wherein the anode has a visible light (with a wavelength of 380 to 780 nm) transmittance ranging from 35 to 75%, and the anode has a work function of 3.0 to 7.0 eV whereby the device has an improved contrast characteristic while keeping high luminance.
    Type: Application
    Filed: March 14, 2001
    Publication date: January 24, 2002
    Inventors: Naoyuki Ueda, Yasunori Kajima, Shinichiro Tamura