Patents by Inventor Peng Huei Lim

Peng Huei Lim 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).

  • Light emitting device
    Patent number: 8472489
    Abstract: A light-emitting device having a ring optical resonator and capable of laser oscillation by a novel structure realized by working out the mechanism of light emission. The light-emitting device having a ring optical resonator fabricated on a base is characterized in that the optical resonator has a core made of a semiconductor and serving to propagate light and a clad formed on at least the base side of the core in the stack direction out of the base side and the opposite side of the core, at least the ring inner and outer peripheral surfaces of the core are covered with a transparent body having an index of refraction lower than that of the space or the clad, and a part of the ring inner and outer peripheral surfaces of the clad are covered with a transparent body having an index of refraction lower than that of the space or the clad.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: June 25, 2013
    Assignee: The University of Tokyo
    Inventors: Kazumi Wada, Shiyun Lin, Yosuke Kobayashi, Peng Huei Lim
  • LIGHT EMITTING DEVICE
    Publication number: 20110044362
    Abstract: A light-emitting device having a ring optical resonator and capable of laser oscillation by a novel structure realized by working out the mechanism of light emission. The light-emitting device having a ring optical resonator fabricated on a base is characterized in that the optical resonator has a core made of a semiconductor and serving to propagate light and a clad formed on at least the base side of the core in the stack direction out of the base side and the opposite side of the core, at least the ring inner and outer peripheral surfaces of the core are covered with a transparent body having an index of refraction lower than that of the space or the clad, and a part of the ring inner and outer peripheral surfaces of the clad are covered with a transparent body having an index of refraction lower than that of the space or the clad.
    Type: Application
    Filed: September 18, 2008
    Publication date: February 24, 2011
    Applicant: THE UNIVERSITY OF TOKYO
    Inventors: Kazumi Wada, Shiyun Lin, Yosuke Kobayashi, Peng Huei Lim