Patents by Inventor Pi-Fu Yang

Pi-Fu 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).

  • Publication number: 20060261366
    Abstract: An integrated light-emitting device includes a substrate, a reflecting layer containing at least one reflector cup molded over the substrate to define a cup-shaped recess and having a reflective surface in the cup-shaped recess, a light-generating source mounted on the substrate within the cup-shaped recess, an encapsulating layer molded over the cup-shaped recess and the light-generating source, and a brightness enhancement prism film attached onto the encapsulating layer and patterned to form a plurality of prism structures.
    Type: Application
    Filed: September 7, 2005
    Publication date: November 23, 2006
    Inventor: Pi-Fu Yang
  • Patent number: 6921183
    Abstract: A concave cup printed circuit board includes a substrate and a cup forming plate. The substrate has an electrical circuitry and at least one contact pad connected to the circuitry. The cup forming plate has at least one through-hole and at least one cup-shaped wall confining the through-hole. The cup forming plate overlies and is connected to the substrate such that the through-hole is disposed over the contact pad. The cup forming plate and the substrate are fabricated separately. The through-hole is formed in the cup forming plate before the cup forming plate is connected to the substrate.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: July 26, 2005
    Inventors: Pi-Fu Yang, Jit Seang Tan
  • Publication number: 20040160771
    Abstract: A concave cup printed circuit board includes a substrate and a cup forming plate. The substrate has an electrical circuitry and at least one contact pad connected to the circuitry. The cup forming plate has at least one through-hole and at least one cup-shaped wall confining the through-hole. The cup forming plate overlies and is connected to the substrate such that the through-hole is disposed over the contact pad. The cup forming plate and the substrate are fabricated separately. The through-hole is formed in the cup forming plate before the cup forming plate is connected to the substrate.
    Type: Application
    Filed: February 14, 2003
    Publication date: August 19, 2004
    Inventors: Pi-Fu Yang, Jit Seang Tan