Patents by Inventor Cheng-Tsai Chang

Cheng-Tsai Chang 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: 6900982
    Abstract: A multipurpose memory card connector includes an electrically insulative housing defining a front-open receiving open chamber, the housing having a first set of terminals disposed at the rear side inside and second and third sets of terminals disposed near the front open side of the receiving open chamber, and a slide slidably mounted inside the receiving open chamber, the slide having a first stop face disposed at a rear bottom side thereof and second and third stop faces respectively spaced from the first stop face at a distance adapted to receive insertion force from one of a number of memory cards for enabling the slide to be moved in the receiving open chamber at a distance subject to the type of the memory card being inserted into the receiving open chamber.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: May 31, 2005
    Assignee: Teconn Electronics Inc.
    Inventors: Cheng-Tsai Chang, Chun-Chih Huang, Yu-Hui Chien, Yi-Fen Huang
  • Publication number: 20050094364
    Abstract: A multipurpose memory card connector includes an electrically insulative housing defining a front-open receiving open chamber, the housing having a first set of terminals disposed at the rear side inside and second and third sets of terminals disposed near the front open side of the receiving open chamber, and a slide slidably mounted inside the receiving open chamber, the slide having a first stop face disposed at a rear bottom side thereof and second and third stop faces respectively spaced from the first stop face at a distance adapted to receive insertion force from one of a number of memory cards for enabling the slide to be moved in the receiving open chamber at a distance subject to the type of the memory card being inserted into the receiving open chamber.
    Type: Application
    Filed: October 29, 2003
    Publication date: May 5, 2005
    Applicant: Teconn Electronics Inc.
    Inventors: Cheng-Tsai Chang, Chun-Chih Huang, Yu-Hui Chien, Yi-Fen Huang
  • Patent number: 6667888
    Abstract: A structure of the cassette with a card connector is disclosed. The cassette comprises a chassis, an upper metallic board, a lid, and a bottom metallic board. The upper metallic board is detachably mounted onto the top of the chassis by engaging a plurality of fitting elements of the upper metallic board with the receiving cavities and slots of the chassis. The slot of the lid is slid into the groove of the chassis, until the protruded shafts of the lid fits into the corresponding receiving cavities on the chassis, and a front part of the lid stacks on a distal plate of the upper metallic board for securely coupling the upper metallic board onto the chassis. Thus, the present invention not only allows the repair, or replacement of parts of the PCB, or the replacement of the PCB, but also reuse of the parts of the cassette.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: December 23, 2003
    Assignees: Teconn Electronics Inc., Four Dimension Industrial Corp.
    Inventors: Cheng-Tsai Chang, Chin-Fa Lee, Chun-Chih Huang