Wireless Power Transfer in Japan: Regulations and Activities

Japan has a long history of research and development (R&D) in wireless power transfer (WPT) technologies. Recently, based on a WPT R&D agreement, there are interesting new WPT R&D and WPT research projects in Japan, and are discussed in the course of this paper.. WPT technologies and its applications can make significant advancements not only through R&D and commercialization, but also in discussion of new radio regulations. Japan not only contributes in discussions of regulation of the WPT within its shores, but also in the International Telecommunication Union Radiocommunication Sector (ITU-R). The status of the discussion in the new regulation of the WPT is further discussed in the course of this paper.

[1]  William C. Brown,et al.  The History of Power Transmission by Radio Waves , 1984 .

[2]  Kozo Hashimoto Frequency allocations of solar power satellite and international activities , 2011, 2011 IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications.

[3]  Takashi Ohira,et al.  Power transfer for a running automobile , 2011, 2011 IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications.

[4]  M. Chabalko,et al.  Three-Dimensional Charging via Multimode Resonant Cavity Enabled Wireless Power Transfer , 2015, IEEE Transactions on Power Electronics.

[5]  Yoshihiro Kawahara,et al.  Multimode Quasistatic Cavity Resonators for Wireless Power Transfer , 2017, IEEE Antennas and Wireless Propagation Letters.

[6]  Yoshihiro Kawahara,et al.  Room-Wide Wireless Charging and Load-Modulation Communication via Quasistatic Cavity Resonance , 2018, Proc. ACM Interact. Mob. Wearable Ubiquitous Technol..

[7]  Kohei Shimamura,et al.  Wireless power transfer via Subterahertz-wave , 2018, Applied Sciences.

[8]  Sei Mizojiri,et al.  GaN Schottky Barrier Diode for Sub-Terahertz Rectenna , 2019, 2019 IEEE Wireless Power Transfer Conference (WPTC).