A batteryless wireless system with MTCMOS/SOI circuit technology. - Takakuni Douseki; Tsuneo Tsukahara; Yoshifumi Yoshida; Fumiyasu Utsunomiya; Norio Hama (CICC, 2003)

Sub-1-V Power-Supply System with Variable-Stage SC-Type DC-DC Converter Scheme for Ambient Energy Sources. - Yoshifumi Yoshida; Fumiyasu Utsunomiya; Takakuni Douseki (IEICE Trans. Electron., 2005)

Nanowatt-Power-Level Automatic Switch Combining ED-CMOS Circuit and LED. - Fumiyasu Utsunomiya; Takakuni Douseki (IEICE Trans. Electron., 2012)

A 0.35-V inductorless DC-DC converter using non-SOI CMOS technology. - Haidong Sun; Sho Hoshino; Hirokazu Yoshizawa; Fumiyasu Utsunomiya; Minoru Sudo (ISPACS, 2016)

Self-powered wireless plant health monitoring system detects circadian rhythm using sap-activated battery. - Ami Tanaka; Syuuichi Okamoto; Ryoma Furumori; Takakuni Douseki; Fumiyasu Utsunomiya (IEEE SENSORS, 2017)

Self-powered Wireless UV Sensor with Intervals of Wireless Transmission. - Shunta Furumura; Yasuhiro Hiraga; Fumiyasu Utsunomiya; Minoru Sudo; Ami Tanaka; Takakuni Douseki (IEEE SENSORS, 2021)

Alive Monitoring Sensor System with 2.45-GHz Wireless Power Transfer for Self-powered Wireless Sensor. - F. Nishimura; Y. Hirai; A. Kamitani; Ami Tanaka; Fumiyasu Utsunomiya; Hisashi Nishikawa; Takakuni Douseki (IEEE SENSORS, 2021)

Temperature-Robust 0.48-V FD-SOI Intermittent Startup Circuit with 300-nA Quiescent Current for Batteryless Wireless Sensor Capable of 1-μA Energy Harvesting Sources. - Minoru Sudo; Fumiyasu Utsunomiya; Ami Tanaka; Takakuni Douseki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2021)