Patents by Inventor Jey-Chung Yang

Jey-Chung Yang 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).

  • Lens holder for a scanner system with one supporting point and one pressing point
    Patent number: 5936239
    Abstract: The present invention includes a lens holder base, a first covering element and a second covering element. A V shape trench is formed on the top surface of the lens holder base for holding the lens. Further, the trench is preferably formed to be orthogonal to the CCD. The first covering element and the second covering element are utilized for preventing the noise light from interfereing the CCD. The second covering element is a flat plane having a protrudent portion, which is connected to the first covering element. The flat plane portion of the second covering element has screws that are used to connect to the top surface of the lens holder base. An adjusting element is set on the top of the protrudent portion for adjusting the focal length of the lens set.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: August 10, 1999
    Assignee: Mustek Systems Inc.
    Inventors: Jenn-Tsair Tsai, Jey-Chung Yang