Patents by Inventor Nan Kyung Hwang

Nan Kyung Hwang 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).

  • Publication number: 20240364196
    Abstract: The present invention relates to a non-rotating direct current electric generator capable of generating a direct current with high efficiency without rotating a field magnet or an armature. The non-rotating direct current electric generator according to the present invention is a direct current electric generator generating a direct current. and is characterized by comprising a drive unit and a generator unit. wherein the generator unit comprises: a rod-shaped core member: a field magnet having a first hollow part in the center part along with the winding of an electric line. and disposed on the outside of the core member through the first hollow part: and an armature having a second hollow part in the center part along with the winding of an electric line. and disposed on the outside of the core member through the first hollow part.
    Type: Application
    Filed: March 26, 2021
    Publication date: October 31, 2024
    Inventors: Woo Hee CHOI, Hyung Ju YOO, Nan Kyung HWANG
  • Publication number: 20230198368
    Abstract: A non-rotating alternating current (AC) generating device for generating an AC current, includes: two or more generator units which are placed next to each other, wherein the generator unit includes a round bar-shaped core member, a field magnet in which an electric line is wound and a first hollow portion is formed in the central portion, the field magnet disposed on the outside of the core member through the first hollow, an armature in which an electric line is wound and a second hollow portion is formed in the central portion, the armature disposed on the outside of the core member through the second hollow portion, a pole piece which is provided between the field magnet and the armature, and insulating plates which are disposed between the field magnet and the pole piece and between the armature and the pole piece.
    Type: Application
    Filed: April 2, 2021
    Publication date: June 22, 2023
    Inventors: Woo Hee CHOI, Nan Kyung Hwang, Hyung Ju YOO, Sung Kwon Yu