Patents by Inventor Yung-Fu Tang

Yung-Fu Tang 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: 20100053951
    Abstract: An LED floor lamp comprises a main structure, a light shade and a light source, the main structure includes a rod and a base, and the light shade includes a reflecting surface, wherein the rod is fixed on the base, the light shade is mounted on a top end of the rod and the reflecting surface thereof faces upward, the light source is disposed in the light shade and consisted of a plurality of single-packaged light emitting diodes each with a power of more than 12 W. Therefore, the LED floor lamp can provide a high illumination while avoiding energy waste.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 4, 2010
    Inventors: Te-Hsuan HSIEH, Yung-Fu TANG
  • Patent number: 7157872
    Abstract: A ceiling fan with an outer-rotor type DC brushless motor has a center base with multiple blades and a DC brushless motor as a driving source for the fan. The DC brushless motor includes a controller, magnetism sensors, a stator with stator windings and a rotor assembly connected to the fan and having permanent magnets interacting with the stator windings. The controller detects polarity of the permanent magnets through the magnetism sensors. Based on the detected results, the controller changes current of the stator windings to produce an inductive magnetic field with poles the same to the permanent magnets to drive the rotor assembly. Accordingly, the blades of the fan are driven to rotate.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: January 2, 2007
    Assignee: Yong Shin T. Electric Machine Co., Ltd.
    Inventor: Yung-Fu Tang