Patents by Inventor Wei TANN

Wei TANN 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).

  • WIRELESS IDENTIFICATION TAG HAVING CIRCULARLY POLARIZED PLANAR ANTENNA
    Publication number: 20120268251
    Abstract: A wireless identification tag having circular polarization planar antenna is disclosed. The wireless identification tag includes a conductive substrate and a wireless identification device. The conductive substrate includes a first slot portion, a second slot portion, and a third slot portion. The first slot portion, the second slot portion, and the third slot portion pass through the conductive substrate. The first slot portion and the second slot portion stretch in a first direction and a second direction, respectively. The angle between the first direction and the second direction is between 45 degrees and 135 degrees. The third slot portion is connected between the first slot portion and the second slot portion. The wireless identification device is disposed in the first slot portion or the second slot portion. The wireless identification device is used to transmit or receive an electric wave.
    Type: Application
    Filed: November 4, 2011
    Publication date: October 25, 2012
    Applicant: CHINA STEEL CORPORATION
    Inventors: Sung-Lin CHEN, Chang-Tsun LIN, Shih-Kang KUO, Wei TANN