Patents by Inventor Zhi Yu Yang

Zhi Yu 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).

  • Sound attenuating structures
    Patent number: 7395898
    Abstract: There is disclosed a sound attenuation panel comprising, a rigid frame divided into a plurality of individual cells, a sheet of a flexible material, and a plurality of weights. Each weight is fixed to the sheet of flexible material such that each cell is provided with a respective weight and the frequency of the sound attenuated can be controlled by suitable selecting the mass of the weight.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: July 8, 2008
    Assignee: RSM Technologies Limited
    Inventors: Zhi Yu Yang, Weijia Wen, Ping Sheng, Xixiang Zhang
  • Visible-blind UV detectors
    Patent number: 6362483
    Abstract: Visible-blind UV detectors are disclosed comprising an active layer of ZnSTe alloy. The Te composition can be varied to provide good lattice matching depending on the nature of the substrate (eg Si, GaP or GaAs) and a novel structure is provided to give high quantum efficiency. The invention also discloses UV detectors with an active layer of pure ZnS and with an active layer of ZnSSe.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: March 26, 2002
    Assignee: The Hong Kong University of Science & Technology
    Inventors: Iam Keong Sou, Zhaohui Ma, Choi Lai Man, Zhi Yu Yang, Kam Sang Wong, George Ke-Lun Wong