Communication device, communication method, computer program product, and communication… Grant US-9755828-B2 United States of America 05 Sep 2017
COMMUNICATION DEVICE, COMMUNICATION METHOD, COMPUTER PROGRAM PRODUCT, AND COMMUNICATION… Application US-20160269177-A1 United States of America 15 Sep 2016
Device, method, and system for encrypted communication by using encryption key Grant US-9356780-B2 United States of America 31 May 2016
Communication node, key synchronization method, and key synchronization system Grant US-9083684-B2 United States of America 14 Jul 2015