Patents by Inventor Van Ta MAI

Van Ta MAI 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).

  • Terahertz oscillator and producing method thereof
    Patent number: 11863125
    Abstract: An object of the present invention is to provide a terahertz oscillator that does not have an MIM capacitor structure of which producing is intricacy, and oscillates due to resonance of an RTD and stabilizing resistors. The present invention is a terahertz oscillator, wherein a slot antenna having a slot is formed between a first electrode plate and a second electrode plate which are applied a bias voltage, stabilizing resistors to respectively connect to the first electrode plate and the second electrode plate are provided in the slot, an RTD is provided on the second electrode plate through a mesa, and a conductive material member to form an air bridge between the first electrode plate and the mesa is provided, and wherein an oscillation in a terahertz frequency band is obtained due to a resonance of the RTD and the stabilizing resistors.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: January 2, 2024
    Assignee: TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Safumi Suzuki, Van Ta Mai, Yusei Suzuki, Masahiro Asada
  • TERAHERTZ OSCILLATOR AND PRODUCING METHOD THEREOF
    Publication number: 20230057209
    Abstract: An object of the present invention is to provide a terahertz oscillator that does not have an MIM capacitor structure of which producing is intricacy, and oscillates due to resonance of an RTD and stabilizing resistors. The present invention is a terahertz oscillator, wherein a slot antenna having a slot is formed between a first electrode plate and a second electrode plate which are applied a bias voltage, stabilizing resistors to respectively connect to the first electrode plate and the second electrode plate are provided in the slot, an RTD is provided on the second electrode plate through a mesa, and a conductive material member to form an air bridge between the first electrode plate and the mesa is provided, and wherein an oscillation in a terahertz frequency band is obtained due to a resonance of the RTD and the stabilizing resistors.
    Type: Application
    Filed: January 5, 2021
    Publication date: February 23, 2023
    Inventors: Safumi SUZUKI, Van Ta MAI, Yusei SUZUKI, Masahiro ASADA