Patents by Inventor Yun-Hsin Lu

Yun-Hsin Lu 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).

  • Musical instrument sound amplifying device
    Patent number: 10891924
    Abstract: A musical instrument sound amplifying device includes a hollow annular chamber formed inside the musical instrument sound amplifying device; a flaring slot including a lug on a bottom; and a bowl-like annular base including a dimple part on a bottom. The lug is secured to the dimple part. An annular sound hole is disposed between an opening of the bowl-like annular base and an edge of the flaring slot. An inner circumference of the bowl-like annular base is a 3D ring structure of concave surface.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: January 12, 2021
    Inventor: Yun-Hsin Lu
  • Musical instrument sound amplifying device
    Publication number: 20200394986
    Abstract: A musical instrument sound amplifying device includes a hollow annular chamber formed inside the musical instrument sound amplifying device; a flaring slot including a lug on a bottom; and a bowl-like annular base including a dimple part on a bottom. The lug is secured to the dimple part. An annular sound hole is disposed between an opening of the bowl-like annular base and an edge of the flaring slot. An inner circumference of the bowl-like annular base is a 3D ring structure of concave surface.
    Type: Application
    Filed: June 12, 2020
    Publication date: December 17, 2020
    Inventor: Yun-Hsin Lu