Location-aware information retrieval for identifying local and distant landmark. - Yoshihide Hosokawa; Yuichiro Nakazawa; Takanori Yamamoto (SAC, 2014)

Landmark Information Retrieval Based on Name and Road Frequencies in Digital Road Maps. - Yoshihide Hosokawa; Takanori Yamamoto; Yuichiro Nakazawa (MoMM, 2015)

Switched-Capacitor Voltage Buck Converter with Step-Down-Ratio and Clock-Frequency Controllers for Ultra-Low-Power IoT Devices. - Shuto Kanzaki; Tetsuya Hirose; Hiroki Asano; Yuichiro Nakazawa; Nobutaka Kuroki; Masahiro Numa (ICECS, 2018)

Analytical Study of Multi-stage Switched-Capacitor Voltage Boost Converter for Ultra-low Voltage Energy Harvesting. - Yuichiro Nakazawa; Tetsuya Hirose; Toshihiro Ozaki; Yuto Tsuji; Shuto Kanzaki; Hiroki Asano; Nobutaka Kuroki; Masahiro Numa (ISCAS, 2018)

An ultra-low power active diode using a hysteresis common gate comparator for low-voltage and low-power energy harvesting systems. - Kaori Matsumoto; Tetsuya Hirose; Hiroki Asano; Yuto Tsuji; Yuichiro Nakazawa; Nobutaka Kuroki; Masahiro Numa (VLSI-SoC, 2018)

Sub-0.1V Input, Low-Voltage CMOS Driver Circuit for Multi-Stage Switched Capacitor Voltage Boost Converter. - Masaya Nishi; Yuichiro Nakazawa; Kaori Matsumoto; Nobutaka Kuroki; Masahiro Numa; Ryo Matsuzuka; Osamu Maida; Daisuke Kanemoto; Tetsuya Hirose (ICECS, 2019)

An 11.8 nA ultra-low power active diode using a hysteresis common gate comparator for low-power energy harvesting systems. - Kaori Matsumoto; Hiroki Asano; Yuichiro Nakazawa; Nobutaka Kuroki; Masahiro Numa; Osamu Maida; Daisuke Kanemoto; Tetsuya Hirose (IEICE Electron. Express, 2020)

Design of Switched-Capacitor Voltage Boost Converter for Low-Voltage and Low-Power Energy Harvesting Systems. - Tetsuya Hirose; Yuichiro Nakazawa (IEICE Trans. Electron., 2020)