Diversification of Processors Based on Redundancy in Instruction Set. - Shuichi Ichikawa; Takashi Sawada; Hisashi Hata (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2008)

FPGA Implementation of Metastability-Based True Random Number Generator. - Hisashi Hata; Shuichi Ichikawa (IEICE Trans. Inf. Syst., 2012)