Patents by Inventor Wen-Ren Wang

Wen-Ren Wang 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).

  • Patent number: 11961939
    Abstract: A method of manufacturing a light-emitting device, including: providing a substrate structure including a top surface; forming a precursor layer on the top surface; removing a portion of the precursor layer and a portion of the substrate from the top surface to form a base portion and a plurality of protrusions regularly arranged on the base portion; forming a buffer layer on the base portion and the plurality protrusions; and forming a III-V compound cap layer on the buffer layer; wherein one of the plurality of protrusions comprises a first portion and a second portion formed on the first portion; wherein the first portion is integrated with the base portion and has a first material which is the same as that of the base portion; and wherein the buffer layer contacts side surfaces of the plurality of protrusions and a surface of the base portion.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: April 16, 2024
    Assignee: EPISTAR CORPORATION
    Inventors: Peng Ren Chen, Yu-Shan Chiu, Wen-Hsiang Lin, Shih-Wei Wang, Chen Ou
  • Publication number: 20070119552
    Abstract: The present invention discloses a window curtain rolling device that comprises a guide module, a fixed casing, a movable coupling module, a coupling module, and a rotary module, wherein a guide rod of the guide module having a fixed casing is coupled with the movable coupling module, and the movable coupling module includes a corresponding guide groove around the periphery of the movable coupling module for allowing a rolling bead covered by the coupling module to slide or latch along the guide groove or at other positions and directions, so that when a user operates a pulling up and close device coupled to the embedding member at another end of the fixed casing, the user can control the speed of rolling the window curtain effectively.
    Type: Application
    Filed: November 29, 2005
    Publication date: May 31, 2007
    Inventors: Wen-Ren Wang, Chih-Yung Wang