Patents by Inventor Yu-Feng Chuang

Yu-Feng Chuang 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: 20170058429
    Abstract: A method includes grinding alumina powder into alumina particles with ultrafine particle powder, performing a purification process so that the alumina particles have a purity greater than 99.999%, processing the alumina particles by a spray dryer, processing the alumina particles by a sheet molding compound to produce an alumina material, and placing the alumina material in a vacuum super high temperature furnace to have a crystal growth which includes placing the alumina material in a predetermined crucible in the vacuum super high temperature furnace, preburning the alumina material to form a half-baked alumina cake, heating and increasing a temperature of the alumina cake so that the alumina cake is disposed at a melted state until the crystal growth is finished, and curing the alumina cake that is melted so as to form a sapphire crystal.
    Type: Application
    Filed: September 1, 2015
    Publication date: March 2, 2017
    Inventors: Yu-Feng Chuang, Ying-Jen Chuang
  • Publication number: 20150264867
    Abstract: A plant cultivation apparatus includes at least one housing, a lamp holder mounted on an upper end of the housing, a basin mounted on a lower end of the housing and containing soil, a light emitting diode (LED) lamp mounted on the lamp holder, a water pipe connected with the housing to supply water to the soil of the basin, a constant rate timing device connected with the water pipe, an external water source connected with the water pipe, and a high oxygen water generating device connected with the water pipe. Thus, the plant cultivation apparatus can enhance the growth efficiency of the plant by provision of the high oxygen water generating device. In addition, the plant cultivation apparatus has sterilizing and odorizing functions by provision of the ozone generating device.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 24, 2015
    Inventor: Yu-Feng Chuang
  • Patent number: 8536607
    Abstract: An LED base plate enabling the LED to emit high luminance white light. The base plate has a reflective surface, and protrusions disposed on the reflective surface have top portions formed with curved surfaces. The protrusions have bottom widths of 2 to 4 micrometers and heights of 1.2 to 1.8 micrometers, with adjacent protrusions having spaces of 0.6 to 3 micrometers. An InGaN epitaxy layer is coated on the reflective surface of the base plate and emits ultraviolet of wavelength in the range of 380 to 410 nanometer when the InGaN epitaxy layer is electrified. Ultraviolet light reflected by the reflective surface of the base plate and the protrusions stimulates and mixes fluorescent compounds of zinc oxide and yttrium aluminum garnet to generate complementary light of ultraviolet light. High luminance white light scatteringly emitted is used for illumination.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: September 17, 2013
    Inventor: Yu-Feng Chuang
  • Publication number: 20120313127
    Abstract: An LED base plate enabling the LED to emit high luminance white light. The base plate has a reflective surface, and protrusions disposed on the reflective surface have top portions formed with curved surfaces. The protrusions have bottom widths of 2 to 4 micrometers and heights of 1.2 to 1.8 micrometers, with adjacent protrusions having spaces of 0.6 to 3 micrometers. An InGaN epitaxy layer is coated on the reflective surface of the base plate and emits ultraviolet of wavelength in the range of 380 to 410 nanometer when the InGaN epitaxy layer is electrified. Ultraviolet light reflected by the reflective surface of the base plate and the protrusions stimulates and mixes fluorescent compounds of zinc oxide and yttrium aluminum garnet to generate complementary light of ultraviolet light. High luminance white light scatteringly emitted is used for illumination.
    Type: Application
    Filed: February 15, 2012
    Publication date: December 13, 2012
    Inventor: YU-FENG CHUANG
  • Patent number: 8299717
    Abstract: An outdoor LED (light emitting diode) system includes an LED device, a storage battery storing an electric energy therein and connected to the LED device to provide an electric power to the LED device, a solar energy generator connected to the storage battery to provide an electric power to the storage battery, and a wind power generator connected to the storage battery to provide an electric power to the storage battery. Thus, the electric power of the LED device is supplied by two types of natural energy, including the solar energy and the wind energy, to prevent from incurring an environmental pollution so as to satisfy the requirements of environment protection.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: October 30, 2012
    Inventor: Yu-Feng Chuang
  • Publication number: 20110187274
    Abstract: An outdoor LED (light emitting diode) system includes an LED device, a storage battery storing an electric energy therein and connected to the LED device to provide an electric power to the LED device, a solar energy generator connected to the storage battery to provide an electric power to the storage battery, and a wind power generator connected to the storage battery to provide an electric power to the storage battery. Thus, the electric power of the LED device is supplied by two types of natural energy, including the solar energy and the wind energy, to prevent from incurring an environmental pollution so as to satisfy the requirements of environment protection.
    Type: Application
    Filed: February 2, 2010
    Publication date: August 4, 2011
    Inventor: Yu-Feng Chuang