Patents by Inventor Jui-En Fan

Jui-En Fan 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).

  • Non-contact frequency automatic tuning filter with antileakage chamber
    Patent number: 10276905
    Abstract: A non-contact frequency automatic tuning filter with an antileakage chamber includes a first casing with a first cavity formed at a first opening of the first casing, a moving part, and a second cavity. The second cavity has a second casing, a chamber formed in the second casing, and second and third openings penetrating through the second casing. The moving part is plugged from the third opening into the first cavity or from the third opening into a space between the third opening and the first cavity. The second opening proximate to the moving part constitutes a part of the chamber. The second casing has a spacing portion proximate to the moving part for separating the moving part and chamber. The first and second casings are not in contact with the moving part. The invention can prevent leakage of electromagnetic waves and unstable frequency shifting.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: April 30, 2019
    Inventors: Chien-Chih Li, Jen-Ti Peng, Shih-Gong Ciou, Cheng-Lung Wu, Ruei-Yang Syu, Jui-En Fan
  • Non-contact frequency automatic tuning filter with antileakage chamber
    Publication number: 20190020090
    Abstract: A non-contact frequency automatic tuning filter with an antileakage chamber includes a first casing with a first cavity formed at a first opening of the first casing, a moving part, and a second cavity. The second cavity has a second casing, a chamber formed in the second casing, and second and third openings penetrating through the second casing. The moving part is plugged from the third opening into the first cavity or from the third opening into a space between the third opening and the first cavity. The second opening proximate to the moving part constitutes a part of the chamber. The second casing has a spacing portion proximate to the moving part for separating the moving part and chamber. The first and second casings are not in contact with the moving part. The invention can prevent leakage of electromagnetic waves and unstable frequency shifting.
    Type: Application
    Filed: July 11, 2017
    Publication date: January 17, 2019
    Applicant: Universal Microwave Technology, Inc.
    Inventors: Chien-Chih Li, Jen-Ti Peng, Shih-Gong Ciou, Cheng-Lung Wu, Ruei-Yang Syu, Jui-En Fan