Two-dimensional communication. - Kei Nakatsuma; Yasutoshi Makino; Hiroyuki Shinoda 001; Hiroto Itai (SIGGRAPH New Tech Demos, 2008)

Two-Dimensional Wireless Power Supply to Ubiquitous Robots Using Microwaves. - Hiroyuki Shinoda 001; Yasutoshi Makino; Naoshi Yamahira; Hiroto Itai (J. Robotics Mechatronics, 2010)