Patents by Inventor Jeng-Kwei Chen

Jeng-Kwei Chen 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).

  • Patent number: 7295350
    Abstract: A photographic film scanning device includes an image scanner including a first casing having a transparent top surface and an optical scanning module movably arranged inside the first casing. A film driving assembly includes a second casing having a detachable bottom removably positioned on the top surface of the first casing. A light-transmitting window is defined in the bottom, having a length and a width. A film driving mechanism is arranged inside the second casing, including a film container for containing a length of film and a film spool for windingly receiving the film roll, respectively arranged on opposite longitudinal ends of the window. A motor drives a toothed wheel engaging perforations defined in the film for moving the film across the length of the window. A light source projects light through the film and the window toward the optical scanning module for performing scanning operation of the film.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: November 13, 2007
    Assignee: Transpacific IP Ltd
    Inventors: Hsiu-O Hsu, Jen-Shou Tseng, Jeng-Kwei Chen
  • Publication number: 20030048480
    Abstract: A photographic film scanning device includes an image scanner including a first casing having a transparent top surface and an optical scanning module movably arranged inside the first casing. A film driving assembly includes a second casing having a detachable bottom removably positioned on the top surface of the first casing. A light-transmitting window is defined in the bottom, having a length and a width. A film driving mechanism is arranged inside the second casing, including a film container for containing a length of film and a film spool for windingly receiving the film roll, respectively arranged on opposite longitudinal ends of the window. A motor drives a toothed wheel engaging perforations defined in the film for moving the film across the length of the window. A light source projects light through the film and the window toward the optical scanning module for performing scanning operation of the film.
    Type: Application
    Filed: September 10, 2001
    Publication date: March 13, 2003
    Inventors: Hsiu-O Hsu, Jen-Shou Tseng, Jeng-Kwei Chen