Patents by Inventor Ying-Ming Chen

Ying-Ming Chen 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: 8987776
    Abstract: A light-emitting device includes a semiconductor light-emitting stack; a current injected portion formed on the semiconductor light-emitting stack; an extension portion having a first branch radiating from the current injected portion and a second branch extending from the first branch; an electrical contact structure between the second branch and the semiconductor light-emitting stack and having a first width; and a current blocking structure located right beneath the electrical contact structure and having a second width larger than the first width.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: March 24, 2015
    Assignee: Epistar Corporation
    Inventors: Ying Ming Chen, Tzu Chieh Hsu, Jhih-Sian Wang, Chien-Fu Huang, Shih-I Chen
  • Publication number: 20140175493
    Abstract: A light-emitting device includes a semiconductor light-emitting stack; a current injected portion formed on the semiconductor light-emitting stack; an extension portion having a first branch radiating from the current injected portion and a second branch extending from the first branch; an electrical contact structure between the second branch and the semiconductor light-emitting stack and having a first width; and a current blocking structure located right beneath the electrical contact structure and having a second width larger than the first width.
    Type: Application
    Filed: January 30, 2014
    Publication date: June 26, 2014
    Applicant: EPISTAR CORPORATION
    Inventors: Ying Ming Chen, Tzu Chieh Hsu, Jhih-Sian Wang, Chien-Fu Huang, Shih-I Chen
  • Publication number: 20030051946
    Abstract: A vehicle lift has a base crossbar, a top crossbar, an oil cylinder, a motor, and a pair of support frames. The top crossbar has a slot to receive an upper end of one of the support frames. A motor is connected to the top crossbar. The oil cylinder is disposed between the base crossbar and the top crossbar. Each of the support frames is disposed between the base crossbar and the top crossbar.
    Type: Application
    Filed: September 5, 2001
    Publication date: March 20, 2003
    Inventors: Ying-Ming Chen, Kai-Chin Fan