Patents by Inventor Chi-Yu Yen

Chi-Yu Yen 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).

  • Signal input device
    Patent number: 6917000
    Abstract: A signal input device includes a bottom shell, a printed conducting track unit arranged on a top surface of the bottom shell, the printed conducting track unit having a plurality of contact portions, and a top cover covering the bottom shell and carrying a press unit. The press unit is aimed at and spaced above the contact portions of the printed conducting track unit for pressing by the user to connect selectively the contact portions of the printed conducting track unit.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: July 12, 2005
    Assignee: Lite-On Technology Corporation
    Inventor: Chi-Yu Yen
  • Shell device with circuit unit
    Publication number: 20040233646
    Abstract: A shell structure with a circuit unit is proposed. The shell has an inner surface on which the circuit unit is arranged for providing a modular structure and accomplishing easy design and manufacturing, thereby reducing the numbers of electronic components and the assembly process steps and saving the manufacturing cost and material.
    Type: Application
    Filed: September 30, 2003
    Publication date: November 25, 2004
    Inventor: Chi-Yu Yen
  • Signal input device
    Publication number: 20040140183
    Abstract: A signal input device includes a bottom shell, a printed conducting track unit arranged on a top surface of the bottom shell, the printed conducting track unit having a plurality of contact portions, and a top cover covering the bottom shell and carrying a press unit. The press unit is aimed at and spaced above the contact portions of the printed conducting track unit for pressing by the user to connect selectively the contact portions of the printed conducting track unit.
    Type: Application
    Filed: July 29, 2003
    Publication date: July 22, 2004
    Inventor: Chi-Yu Yen