Patents by Inventor Yi-Chang Yu

Yi-Chang Yu 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: 12238837
    Abstract: A circuit configuration method for improving efficacy of antibacterial lamps, a voltage boost circuit, and an antibacterial lamp are provided. The voltage boost circuit includes a primary side, a first secondary side, and a second secondary side. An electromagnetic induction occurs between the first secondary side and the primary side to generate a first high voltage, and the first secondary side includes a first connecting terminal and a first grounding terminal. The second secondary side is electrically coupled to the first ground terminal, and an electromagnetic induction occurs between the second secondary side and the primary side to generate a second high voltage that is not equal to the first high voltage. The second secondary side includes a second connecting terminal, and the second connecting terminal and the first connecting terminal are configured to be used to connect with a load.
    Type: Grant
    Filed: March 15, 2023
    Date of Patent: February 25, 2025
    Assignee: SINTEXX TECHNOLOGY CO., LTD.
    Inventors: Yi-Chang Yu, Toshiyuki Sugiyama
  • Publication number: 20230300960
    Abstract: A circuit configuration method for improving efficacy of antibacterial lamps, a voltage boost circuit, and an antibacterial lamp are provided. The voltage boost circuit includes a primary side, a first secondary side, and a second secondary side. An electromagnetic induction occurs between the first secondary side and the primary side to generate a first high voltage, and the first secondary side includes a first connecting terminal and a first grounding terminal. The second secondary side is electrically coupled to the first ground terminal, and an electromagnetic induction occurs between the second secondary side and the primary side to generate a second high voltage that is not equal to the first high voltage. The second secondary side includes a second connecting terminal, and the second connecting terminal and the first connecting terminal are configured to be used to connect with a load.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 21, 2023
    Inventors: Yi-Chang YU, Toshiyuki SUGIYAMA
  • Publication number: 20110272727
    Abstract: A light-emitting diode and method for manufacturing the same are described. The light-emitting diode comprises: a conductive substrate including a first surface and a second surface opposite to the first surface; a reflector structure comprising a conductive reflector layer bonding to the first surface of the conductive substrate and a conductive distributed Bragg reflector (DBR) structure stacked on the conductive reflector layer; an illuminant epitaxial structure disposed on the reflector structure; a first electrode disposed on a portion of the illuminant epitaxial structure; and a second electrode bonded to the second surface of the conductive substrate.
    Type: Application
    Filed: July 19, 2011
    Publication date: November 10, 2011
    Applicant: Epistar Corporation
    Inventors: Chih-Tsung Su, Chun-Lung Tseng, Ching-Wei Chiu, Tao-Chi Chang, Chan-Yang Lu, Jia-Ming Yu, Yi-Chang Yu, Yu-Chen Yang