Patents by Inventor Chong Hong Sun

Chong Hong Sun 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).

  • Rod antenna for use in a portable transmitting / receiving apparatus
    Patent number: 5995051
    Abstract: The present invention provides a rod antenna for use in a portable transmitting/receiving apparatus. The rod antenna is housed in a case of the portable transmitting/receiving apparatus so as to be freely inserted thereinto and drawn therefrom and is electrically connected to a feeder section provided in the case. The rod antenna includes an antenna element having a column formed of insulating material and a conductive film formed on an outer surface of the column along a longitudinal direction of the column so as to have a predetermined length corresponding to transmitted/received waves.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: November 30, 1999
    Assignee: Harada Industry Co., Ltd
    Inventor: Chong Hong Sun