Patents by Inventor Feng-Ku Chien

Feng-Ku Chien 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).

  • Patent number: 7382091
    Abstract: A white light emitting diode (LED) is provided, which includes a reflective mirror arranged on the light emitting path of a blue or an ultra violet LED die at an appropriate angle. Phosphors are coated on the reflective mirror, the emitting plane of the LED, or both so that the phosphors are excited by the blue or UV lights emitted by the LED die to produce white lights. The present invention provides a white LED having a long lifetime and a uniform light color by separating the phosphors from the LED die, and by allowing the lights emitted from the LED die to undergo several excitations with the phosphors.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: June 3, 2008
    Inventors: Lung-Chien Chen, Wen-How Lan, Feng-Ku Chien
  • Publication number: 20070024191
    Abstract: A white light emitting diode (LED) is provided, which includes a reflective mirror arranged on the light emitting path of a blue or an ultra violet LED die at an appropriate angle. Phosphors are coated on the reflective mirror, the emitting plane of the LED, or both so that the phosphors are excited by the blue or UV lights emitted by the LED die to produce white lights. The present invention provides a white LED having a long lifetime and a uniform light color by separating the phosphors from the LED die, and by allowing the lights emitted from the LED die to undergo several excitations with the phosphors.
    Type: Application
    Filed: July 27, 2005
    Publication date: February 1, 2007
    Inventors: Lung-Chien Chen, Wen-How Lan, Feng-Ku Chien
  • Publication number: 20060096625
    Abstract: A umbrella includes a shank having a tip and a handle opposite to the tip, a bracket having first ends pivotally connected to the shank and second ends pivotally connected to skeletons each having a first end pivotally connected to the shank and second end divergently extending out from the shank, a canopy on top of the skeletons and the bracket and having the tip extending out of the canopy, a first illuminator received in the handle to light the handle and a second illuminator received in the shank to light the tip.
    Type: Application
    Filed: November 5, 2004
    Publication date: May 11, 2006
    Inventors: Lung-Chien Chen, Wen-How Lan, Feng-Ku Chien
  • Patent number: 6841804
    Abstract: A white LED device includes a member, a plurality of LEDs, fixed on the member, the LEDS further comprising blue GaN LEDs, a reflector, in parabolic shape, to encase thed member and the plurality of LEDs, yellow phosphor, coated on the surface of the reflector facing the LEDs, and a supporting component, for connecting the member and the reflector in order to connect the LEDs, the member and the reflector together. The main feature of the present invention includes that the LEDs emit blue light when positively biased. The blue light triggers yellow phosphor to generate a yellow light, and the blue light mixed with the yellow light to become a white light. The white light is reflected by the reflector to project onto target objects.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: January 11, 2005
    Assignee: Formosa Epitaxy Incorporation
    Inventors: Lung-Chien Chen, Feng-Ku Chien, Wen-How Lan, Fen-Ren Chien