Patents by Inventor Yu-Cing Lien

Yu-Cing Lien 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).

  • Passive capactive stylus and eraser cap
    Patent number: 12282615
    Abstract: A passive capacitive stylus, comprising: a body, made of non-conductive material, comprises an internal space; a conductor, disposed inside the internal space, comprises conductive foam; a first head made of conductive material and disposed inside the first open and being protruded outside the body in a first direction of the central axis, the first head is in contact with the conductor; and a second head made of conductive material and disposed inside the second open and being protruded outside the body in a second direction of the central axis, the second head is in contact with the conductor.
    Type: Grant
    Filed: December 15, 2023
    Date of Patent: April 22, 2025
    Assignee: EGALAX_EMPIA TECHNOLOGY INC.
    Inventors: Chin-Fu Chang, Shang-Tai Yeh, Hsueh-Fen Lin, Yu-Cing Lien
  • PASSIVE CAPACTIVE STYLUS AND ERASER CAP
    Publication number: 20250013321
    Abstract: A passive capacitive stylus, comprising: a body, made of non-conductive material, comprises an internal space; a conductor, disposed inside the internal space, comprises conductive foam; a first head made of conductive material and disposed inside the first open and being protruded outside the body in a first direction of the central axis, the first head is in contact with the conductor; and a second head made of conductive material and disposed inside the second open and being protruded outside the body in a second direction of the central axis, the second head is in contact with the conductor.
    Type: Application
    Filed: December 15, 2023
    Publication date: January 9, 2025
    Inventors: Chin-Fu Chang, Shang-Tai Yeh, Hsueh-Fen Lin, Yu-Cing Lien