Patents by Inventor Ming-Fa Yang

Ming-Fa Yang 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).

  • High heat dissipation LED device and its manufacturing method
    Publication number: 20060046327
    Abstract: A LED device with high heat dissipation capability has heat dissipating package formed by transparent epoxy and heat dissipating packing epoxy which is a mixture of heat dissipating particles and packing epoxy; during packing process the upper light emitting portion of the LED device is firstly packed with transparent packing epoxy which will not influence the illumination function of the LED device, and then the lower heat dissipating portion of the LED device is packed with heat dissipating packing epoxy through which the heat generated by the LED device may be dissipated to the ambient air when the LED device is lit by high electric current, so that the LED device of this invention may greatly improve the heat accumulation problem and increase light emission efficiency when it is lit; and, since the manufacturing method disclosed in the invention is suitable for the production of the frame type LED device, the process and equipment for producing the conventional frame type LED device could be directly empl
    Type: Application
    Filed: August 30, 2004
    Publication date: March 2, 2006
    Applicant: NAN YA PLASTICS CORPORATION
    Inventors: Sung-Yueh Shieh, Dein-Run Fung, Chi-Ming Chang, Ming-Fa Yang
  • Method for producing white light emission by means of secondary light excitation and its product
    Publication number: 20050057145
    Abstract: A method for producing white light emission by means of secondary light excitation comprising the application of a light source such as Light Emitting diode (LED) or Laser Diode (LD) which may generate ultra violet light or violet light, with wavelength between 360˜420 nm, to excite blue phosphor to produce the broadband first exciting light spectrum having blue light as the main wave crest; the first exciting light in turn excites the yellow phosphor having lower energy level to produce the broadband secondary exciting light having yellow light as the main wave crest; the amount of the two phosphors are adjusted to some specific ratio so that the first exciting light spectrum and the secondary exciting light spectrum emitted by the phosphors enable the light-blend and complementary effect to produce a complete white light spectrum; Besides, red phosphor or green phosphor which may be excited by ultra violet or violet light may be added to adjust the color rendering effect and color temperature of the white l
    Type: Application
    Filed: March 12, 2004
    Publication date: March 17, 2005
    Applicant: NAN YA PLASTICS CORPORATION
    Inventors: Sung-Yueh Shieh, Dein-Run Fung, Chi-Ming Chang, Ming-Fa Yang