Patents by Inventor Lii Hwang Chen

Lii Hwang 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: 7350932
    Abstract: The present invention concerns to a press key structure with a light module in use of illuminant variation for arrow keys of an appliance. The press key structure with light module comprises a key base plate, a light source, a spread slice and a light guiding cap. The light guiding cap includes a crown part, a chamber, and a mouth part that is set on the key base plate and can exactly cover up the above light source. The spread slice is set in the chamber of the light guiding cap so that the light is evenly spread through the light guiding function of the spread slice. Moreover, by adjusting the thickness, transparency, and inside cambered surface of the spread slice, or the distance between the spread slice and the light source, the light guiding property thereof can be modulated.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: April 1, 2008
    Assignee: Tatung Co., Ltd
    Inventors: Tsung Kai Lin, Lii Hwang Chen
  • Publication number: 20060109617
    Abstract: A touch pen holder and touch pen arrangement is disclosed to include a touch pen, which has a shank and a positioning butt protruded from the periphery of the rear end of the shank, and a receptacle, which is mounted inside a shell of a portable electronic and which has a front opening, an elongated receiving chamber extending from the front opening toward the inside of the shell of the portable electronic device for receiving the touch pen, a beveled front surface extended around the front opening for guiding the positioning butt into a position inside the receptacle upon insertion of the touch pen into the elongated receiving chamber, and a crevice formed in the lowest point of the front opening along the beveled front surface and extending in axial direction for receiving the positioning butt of the touch pen.
    Type: Application
    Filed: November 22, 2004
    Publication date: May 25, 2006
    Applicant: Tatung Co., Ltd.
    Inventors: Lii-Hwang Chen, Ping-Chih Chiang
  • Publication number: 20050257341
    Abstract: An anti-slip support structure includes a locating block fixedly fastened to the back panel of a webpad and provided with a pin, a back support pivoted to the pin and adapted to support the webpad on a flat surface in a tilted position, two anti-slip blocks provided at the bottom side of the back panel of the webpad, and two anti-slip rubber feet fixedly provided at the bottom side of the back support and adapted to increase friction between the back support and the flat surface on which the web stands.
    Type: Application
    Filed: May 10, 2004
    Publication date: November 24, 2005
    Applicant: Tatung Co., Ltd.
    Inventors: Lii-Hwang Chen, Ping-Chih Chiang
  • Publication number: 20050196669
    Abstract: An Li-battery is constructed to include two Li-polymer battery cells arranged in a stack, and a flat plastic housing containing the Li-polymer battery cells, the flat plastic housing having a top side, a bottom side, a plurality of openings symmetrically formed at the top and bottom side, and a plurality of thin-sheet metal face panels fixedly mounted in the openings.
    Type: Application
    Filed: February 23, 2004
    Publication date: September 8, 2005
    Applicant: Tatung Co., Ltd.
    Inventors: Chia-Lung Lee, Lii-Hwang Chen