Patents by Inventor Dai Hyun Ahn

Dai Hyun Ahn 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).

  • Blade structure and fan and generator having same
    Patent number: 10724537
    Abstract: The present disclosure relates to a blade structure and a fan and a generator having the same. In accordance with the present disclosure, there is the effect that can ultimately enhance efficiency of the generator by forming the sweep structure or the spline structure on the blade in the inflow direction side of fluid to reduce a low-speed region around the tip of the blade.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: July 28, 2020
    Assignee: Doosan Heavy Industries & Construction Co. LTD.
    Inventors: Dai Hyun Ahn, Sung Ha Kim, Sung Hoon Ha
  • BLADE STRUCTURE AND FAN AND GENERATOR HAVING SAME
    Publication number: 20180372115
    Abstract: The present disclosure relates to a blade structure and a fan and a generator having the same. In accordance with the present disclosure, there is the effect that can ultimately enhance efficiency of the generator by forming the sweep structure or the spline structure on the blade in the inflow direction side of fetid to reduce a low-speed region around the tip of the blade.
    Type: Application
    Filed: May 16, 2018
    Publication date: December 27, 2018
    Applicant: Doosan Heavy Industries & Construction Co. LTD
    Inventors: Dai Hyun Ahn, Sung Ha Kim, Sung Hoon Ha