Patents by Inventor Jun-Woo Chang

Jun-Woo 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).

  • Publication number: 20030083023
    Abstract: An antenna device of a wireless phone is disclosed, which can effectively adjust directions of a helical antenna and a rod antenna so as to minimize any effect of electronic waves on a human body. A fitting metal and a contact part of a rod antenna guide are spaced apart from each other at a predetermined distance or the rod antenna guide has an inner diameter enough to rotate the fitting metal at a predetermined angle. A connecting rod fixed to a main body case of a wireless phone is provided at both ends of the fitting metal fitted into a helical antenna, and the fitting metal is rotated at a predetermined angle around the connecting rod. The angle of the antennas is adjusted when a stopper of the rod antenna is in contact with the helical antenna as the rod antenna moves.
    Type: Application
    Filed: October 7, 2002
    Publication date: May 1, 2003
    Inventors: Jun-Woo Chang, Wan-Ho Kim, Sang-Won Lee