Patents by Inventor Han Chil Cha

Han Chil Cha 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).

  • Meandered slit antenna
    Patent number: 7375697
    Abstract: A meandered slit antenna is provided. The meandered slit antenna includes: a printed circuit board; an RF module mounted on the printed circuit board to generate a predetermined electric signal; a microstrip feed line connected with the RF module to transmit the predetermined electric signal; and a slot part for radiating an electromagnetic wave induced by the electric signal that is transmitted through the microstrip feed line, the slot part being formed in a meandered shape.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: May 20, 2008
    Assignee: Ohsung Electrics Electrics Co., Ltd.
    Inventors: Young Soon Lee, Ui Jung Kim, Han Chil Cha