Patents by Inventor Jung Taek Han

Jung Taek Han 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).

  • NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICE INCLUDING BUFFER LAYER AND METHOD OF FORMING THE SAME
    Publication number: 20180337307
    Abstract: A semiconductor light emitting device includes a Group-III nitride semiconductor layer on a buffer layer. The buffer layer includes a first layer, a second layer, and a third layer in that order. Each of the first layer, the second layer, and the third layer includes a composition which includes aluminum (Al), nitrogen (N), and oxygen (O). A minimum or average value of an oxygen concentration (atoms/cm3) of each of the first layer and the third layer is greater than an oxygen concentration (atoms/cm3) of the second layer.
    Type: Application
    Filed: December 14, 2017
    Publication date: November 22, 2018
    Inventors: Jung Taek HAN, Jong Sun MAENG, Jeen Seok CHO, Sun Woon KIM, Yong Hee JEONG
  • CHAIR HAVING INTEGRATED SAFETY BELT
    Publication number: 20140152061
    Abstract: The present invention relates to a chair having an integrated safety belt, the chair comprising a seat and a seat-back and being characterised by comprising a safety belt which is detachably attached to the seat and/or the seat-back, and which has a buoyant body packed therein.
    Type: Application
    Filed: August 1, 2012
    Publication date: June 5, 2014
    Inventor: Jung Taek Han