Design and Characterization of a Plug-in Device for Tactile Sensing. - Go Otsuka; Masato Niwa; Toshio Kawanishi; Goro Obinata (ICINCO (1), 2018)

IoT Sensor Network Powered by Sediment Microbial Fuel Cell. - Masato Niwa; Zhenni Pan; Shigeru Shimamoto (CCNC, 2020)