An Ultra Small Individual Recognition Security Chip. - Kazuo Takaragi; Mitsuo Usami; Ryo Imura; Rei Itsuki; Tsuneo Satoh (IEEE Micro, 2001)

An Ultra-Small Double-Surface Electrode RFID Chip. - Mitsuo Usami (IEICE Trans. Electron., 2005)

Ultra-Small RLID Chip Technology. - Mitsuo Usami (ICECS, 2006)

An SOI-Based 7.5µm-Thick 0.15x0.15mm2 RFID Chip. - Mitsuo Usami; Akira Sato; Hisao Tanabe; Toshiaki Iwamatsu; Shigeto Maegawa; Yuzuru Ohji (ISSCC, 2006)

A 0.05?0.05mm2 RFID Chip with Easily Scaled-Down ID-Memory. - Mitsuo Usami; Hisao Tanabe; Akira Sato; Isao Sakama; Yukio Maki; Toshiaki Iwamatsu; Takashi Ipposhi; Yasuo Inoue (ISSCC, 2007)

Powder RFID chip technology. - Mitsuo Usami (APCCAS, 2008)