Patents by Inventor Zhi-Zhong Hong

Zhi-Zhong Hong 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).

  • Publication number: 20050271442
    Abstract: The present invention discloses a high voltage resisting keyboard comprising at least one press key on a casing, a circuit board inside the casing, and a metal dome between the press keys and the circuit board inside the casing, wherein the edge of the metal hemisphere of the metal dome is directly connected to an end of an electrode of the circuit board, and the other end of the electrode is connected to an end of a resistor. Thus, when the edge of the metal hemisphere receives the high voltage current, the keyboard is protected by the resistor to avoid the high voltage current from being sent directly to another end of the resistor that is connected to another electronic component to achieve the purpose of protecting another electronic component.
    Type: Application
    Filed: June 2, 2004
    Publication date: December 8, 2005
    Applicant: Inventec Appliances Corporation
    Inventors: David Ho, Tony Tsai, Tao Xia, Zhi-Zhong Hong