Patents by Inventor Yau-Ji Lee

Yau-Ji Lee 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: 9611843
    Abstract: A micro-gas pressure driving apparatus includes a miniature gas transportation module and a miniature valve module. The miniature gas transportation module includes a gas inlet plate, a fluid channel plate, a resonance membrane and a piezoelectric actuator. A first chamber is defined between the resonance membrane and the piezoelectric actuator. After the piezoelectric actuator is activated to feed a gas through the gas inlet plate, the gas is transferred to the first chamber through the fluid channel plate and the resonance membrane and then transferred downwardly. Consequently, a pressure gradient is generated to continuously push the gas. The miniature valve module includes a gas collecting plate, a valve membrane and a gas outlet plate. After the gas is transferred from the miniature gas transportation module to the gas-collecting chamber, the gas is transferred in one direction, so that a pressure-collecting operation or a pressure-releasing operation is selectively performed.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: April 4, 2017
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Ta-Wei Hsueh, Ying-Lun Chang, Hsiang-Dyi Wu, Rong-Ho Yu, Shih-Chang Chen, Tsung-Pat Chou, Yau-Ji Lee, Jia-Yu Liao
  • Publication number: 20140377099
    Abstract: A micro-gas pressure driving apparatus includes a miniature gas transportation module and a miniature valve module. The miniature gas transportation module includes a gas inlet plate, a fluid channel plate, a resonance membrane and a piezoelectric actuator. A first chamber is defined between the resonance membrane and the piezoelectric actuator. After the piezoelectric actuator is activated to feed a gas through the gas inlet plate, the gas is transferred to the first chamber through the fluid channel plate and the resonance membrane and then transferred downwardly. Consequently, a pressure gradient is generated to continuously push the gas. The miniature valve module includes a gas collecting plate, a valve membrane and a gas outlet plate. After the gas is transferred from the miniature gas transportation module to the gas-collecting chamber, the gas is transferred in one direction, so that a pressure-collecting operation or a pressure-releasing operation is selectively performed.
    Type: Application
    Filed: May 7, 2014
    Publication date: December 25, 2014
    Applicant: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Ta-Wei Hsueh, Ying-Lun Chang, Hsiang-Dyi Wu, Rong-Ho Yu, Shih-Chang Chen, Tsung-Pat Chou, Yau-Ji Lee, Jia-Yu Liao