We mentioned A.T. Communications in Tokyo with their embedded logos and flash video QR Codes in 2008. Then again in 2010 when Denso Corporation announced that it has licensed A.T. Communications its QR Code patent. Now in conjunction with Kagoshima University they have been granted international patent WO/2010/140639 for a system of embedding a watermark in a QR Code. Obviously this could be used to detect duplication in ticketing or payment applications. However I can’t help feeling that with NFC on the verge of mass deployment that watermarking QR Codes is only a transitory solution.