Patents by Inventor Tak Chun Lee

Tak Chun Lee 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).

  • Variable color display and articles incorporating same
    Patent number: 6995739
    Abstract: A display and a watch including a display which includes a first polarizing means, a second polarizing means, a display means, rotation means for causing relative rotation between said first and said second polarizing means, said second polarizing means being disposed intermediate between said first polarizing means and said display means, at least one of said polarizing means being a color polarizer, and said display means being generally reflective towards said first and second polarizing means.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: February 7, 2006
    Assignee: Zexus Technology Limited
    Inventors: Tak Chun Lee, Hoi To Chow
  • Variable colour display and articles incorporating same
    Publication number: 20040051722
    Abstract: A display and a watch including a display which includes a first polarizing means, a second polarizing means, a display means, rotation means for causing relative rotation between said first and said second polarizing means, said second polarizing means being disposed intermediate between said first polarizing means and said display means, at least one of said polarizing means being a colour polarizer, and said display means being generally reflective towards said first and second polarizing means.
    Type: Application
    Filed: December 23, 2002
    Publication date: March 18, 2004
    Inventors: Tak Chun Lee, Hoi To Chow