Patents by Inventor Hui-Chen YEH

Hui-Chen YEH 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: 9437780
    Abstract: An optoelectronic semiconductor device in accordance with an embodiment of present invention includes a conversion unit having a first side; an electrical connector; a contact layer having an outer perimeter; and at least three successive discontinuous-regions formed along the outer perimeter and having at least one different factor; wherein the electrical connector, the contact layer, and the discontinuous-regions are formed on the first side of the conversion unit.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: September 6, 2016
    Assignee: EPISTAR CORPORATION
    Inventors: Tsun-Kai Ko, Schang-Jing Hon, Chien-Kai Chung, Hui-Chen Yeh, An-Ju Lin, Chien-Fu Shen, Chen Ou
  • Patent number: 9035329
    Abstract: The light-emitting device having an equivalent circuit, includes at least four terminals, numbered from first terminal to fourth terminal, for electrical power feeding; a first light-emitting diode, arranged between the first terminal and the second terminal, configured to not emit light when a voltage is applied between the second terminal and one of the third terminal and the fourth terminal, and configured to emit light when a. voltage is applied between the first terminal and one of the third terminal and the four the terminal; and a second light-emitting diode, arranged between the third terminal and the fourth terminal, and configured to not emit light when the voltage is applied between the third terminal and one of the first terminal and the second terminal and configured to emit light when a voltage is applied between the fourth terminal and one of the first terminal and the second terminal.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: May 19, 2015
    Assignee: Epistar Corporation
    Inventors: Chao-Hsing Chen, Chien-Kai Chung, Hui-chen Yeh, Yi-Wen Ku
  • Publication number: 20120061691
    Abstract: This disclosure discloses a light-emitting device. The light-emitting device comprises: a light-emitting array comprising a first light-emitting unit and a second light-emitting unit electrically connected in serial with the first light-emitting unit; at least two first bonding pads formed on the first light-emitting unit; and at least two second bonding pads formed on the second light-emitting unit. One of the two first bonding pads is in a floating level, and one of the two second bonding pads is in a floating level.
    Type: Application
    Filed: March 15, 2011
    Publication date: March 15, 2012
    Inventors: Chao-Hsing CHEN, Chien-Kai Chung, Hui-Chen Yeh, Yi-Wen Ku
  • Publication number: 20100052000
    Abstract: An optoelectronic semiconductor device in accordance with an embodiment of present invention includes a conversion unit having a first side; an electrical connector; a contact layer having an outer perimeter; and at least three successive discontinuous-regions formed along the outer perimeter and having at least one different factor; wherein the electrical connector, the contact layer, and the discontinuous-regions are formed on the first side of the conversion unit.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 4, 2010
    Applicant: EPISTAR CORPORATION
    Inventors: Tsun-Kai KO, Schang-Jing HON, Chien-Kai CHUNG, Hui-Chen YEH, An-Ju LIN, Chien-Fu SHEN, Crux OU