Patents by Inventor Dong II Jang

Dong II Jang 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).

  • ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    Publication number: 20240222608
    Abstract: An anode active material for a lithium secondary battery includes a carbon-based particle including pores therein, a silicon-containing coating layer formed at an inside the pores of the carbon-based particle or on a surface of the carbon-based particle, and a carbon coating layer formed on the silicon-containing coating layer. A full width at half maximum (FWHM) of an O1s peak of a surface measured by an X-ray photoelectron spectroscopy (XPS) is 2.0 or more. A lithium secondary battery including the anode active material having improved initial discharge capacity and capacity efficiency is provided.
    Type: Application
    Filed: March 20, 2024
    Publication date: July 4, 2024
    Inventors: Gwi Ok PARK, Seok Keun YOO, Dong II JANG, Ju Ho CHUNG
  • Skin whitening composition containing arbutin and glucosidase as active ingredients
    Publication number: 20040042984
    Abstract: The present invention relates to skin whitening and/or depigmenting composition containing arbutin and glucosidase as active ingredients. The glucosidase is an enzyme hydrolyzing arbutin into hydroquinone and glucose.
    Type: Application
    Filed: May 9, 2003
    Publication date: March 4, 2004
    Inventors: Deok Hoon Park, Dong II Jang, Kuk Hyun Kim