Patents by Inventor Yu-Fong Yu

Yu-Fong 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).

  • Structure of emitter electrode for enhancing ion currents
    Patent number: 11309159
    Abstract: The present invention discloses a structure of an emitter electrode for enhancing ion currents, including a tip end part and a shank part. The tip end part has a pinpoint, a first diameter, and a radius of curvature. A length of the tip end part with the shank part is from the pinpoint to a first position of the shank part and a distance between the first position and the pinpoint is 300 times the first diameter. The radius of curvature of the tip end part ranges from 50 nanometers to 5 micrometers. The first diameter is 2 times the radius of curvature.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: April 19, 2022
    Assignee: ALES TECH INC.
    Inventors: Wei-Chaio Lai, Chun-Yueh Lin, Ing-Shouh Hwang, Wei-Tse Chang, Ching-Yu Hsiao, Yu-Fong Yu, Zong-Yu Yang
  • Structure of Emitter Electrode for Enhancing Ion Currents
    Publication number: 20220068583
    Abstract: The present invention discloses a structure of an emitter electrode for enhancing ion currents, including a tip end part and a shank part. The tip end part has a pinpoint, a first diameter, and a radius of curvature. A length of the tip end part with the shank part is from the pinpoint to a first position of the shank part and a distance between the first position and the pinpoint is 300 times the first diameter. The radius of curvature of the tip end part ranges from 50 nanometers to 5 micrometers. The first diameter is 2 times the radius of curvature.
    Type: Application
    Filed: August 23, 2021
    Publication date: March 3, 2022
    Inventors: Wei-Chaio Lai, Chun-Yueh Lin, Ing-Shouh Hwang, Wei-Tse Chang, Ching-Yu Hsiao, Yu-Fong Yu, Zong-Yu Yang