Patents by Inventor Chih-Kai Chang

Chih-Kai 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: 6328603
    Abstract: An electric connector grounding structure includes an electrically insulative housing, the electrically insulative housing comprising a receiving chamber adapted to receive a matching electric connector; an electric circuit assembly unit mounted in the electrically insulative housing, the electric circuit assembly unit including a terminal holder holding a set of terminals in the receiving chamber for the connection of the respective terminals of the matching electric connector, a circuit board supported on the terminal holder and soldered to the terminals in the terminal holder, the circuit board having a plurality of terminals respectively inserted through respective terminal slots of the terminal holder for connection to an external circuit board, and an electronic component part unit, the electronic component part unit having a grounding terminal extended out of the electrically insulative housing, a metal shield covered on the electrically insulative housing to hold down the grounding terminal of the ele
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: December 11, 2001
    Assignee: Speed Tech Corp.
    Inventor: Chih-Kai Chang
  • Patent number: 6319051
    Abstract: An electric connector in which an socket shell is installed in a housing to hold a terminal holder inside the housing and a set of terminals in the terminal holder and adapted to receive an electric plug, the socket shell being made of light penetrable material and, having a visible front side adapted to receive an electric plug and electric light emitting means, for example, LEDs installed in a rear side thereof and adapted to emit light through the visible front side to indicate operation of the electric connector.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: November 20, 2001
    Assignee: Speed Tech Corp.
    Inventors: Chih-Kai Chang, Huan-Ching Tsen
  • Patent number: 6234841
    Abstract: A metal shield and connector body arrangement, which includes a connector body, a metal shield made by bending a crossed metal sheet into a casing and covered on the connector body, and a metal spring plate mounted between the front side wall of the connector body and the metal shield, the metal spring plate having two protruding grounding strips respectively extended out of respective insertion slots at the metal shield for connection to the metal shell of the mainframe of a computer, and a locating arm disposed at each of two distal ends thereof respectively engaged into a respective annular groove around a respective receptacle at the connector body, the locating arm having a plurality of curved locating strips with a respective raised retaining portion for engagement with the metal shell of an external electric plug being inserted through a hole at the metal shell of the mainframe of the computer and a through hole at the metal shield into connection with one receptacle at the connector body.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: May 22, 2001
    Assignee: Tekcon Electronics Corp.
    Inventors: Chih-Kai Chang, Chin-Hsien Hsu
  • Patent number: 6203375
    Abstract: A metal shield and cable arrangement, which includes two cover shells fastened together, two shielding shells mounted in between the cover shells to hold a terminal holder, and a cable inserted in between the shielding shells and connected to terminals in the terminal holder, wherein the cover shells each have a neck at one end and a stub rod disposed in the neck; the shielding shells each have a neck fitted into the neck at one cover shell, a through hole coupled to the stub rod in the neck at one cover shell, and a retaining flange of smoothly arched cross section supported on the stud rod in the neck at one cover shell and forced by the stub rod against the periphery of the cable.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: March 20, 2001
    Assignee: Tekcon Electronics Corporation
    Inventor: Chih-Kai Chang
  • Patent number: 6168461
    Abstract: A module jack arrangement, which includes multiple module jacks coupled into a row, and at least one clip respectively installed in each two adjacent module jacks to secure the module jacks in position, each module jack including a housing, a terminal holder fastened to the housing and holding a set of terminals, wherein the housing has two coupling tongues and two coupling flanges disposed at two opposite sides at different elevations for enabling the housings two module jacks to be coupled together, and two coupling grooves at two opposite sides for receiving the respective clip; the terminal holder has two vertical coupling flanges bilaterally disposed in reversed directions for enabling the terminal holder of one module jack to be coupled to the terminal holder of another, and a hooked flange for engagement with a hooked flange in the housing of the respective module jack.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: January 2, 2001
    Assignee: Teckon Electronics Corp.
    Inventor: Chih-Kai Chang