Design of Cuttable Wireless Power Transfer Sheet. - Ryo Takahashi 001; Takuya Sasatani; Fuminori Okuya; Yoshiaki Narusue; Yoshihiro Kawahara (UbiComp/ISWC Adjunct, 2018)

A Cuttable Wireless Power Transfer Sheet. - Ryo Takahashi 001; Takuya Sasatani; Fuminori Okuya; Yoshiaki Narusue; Yoshihiro Kawahara (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2018)

DNN-based Outdoor NLOS Human Detection Using IEEE 802.11ac WLAN Signal. - Ryo Takahashi 001; Shigemi Ishida; Akira Fukuda; Tomoki Murakami; Shinya Otsuki (IEEE SENSORS, 2019)

PneuModule: Using Inflatable Pin Arrays for Reconfigurable Physical Controls on Pressure-Sensitive Touch Surfaces. - Changyo Han; Ryo Takahashi 001; Yuchi Yahagi; Takeshi Naemura (CHI, 2020)

Topology Construction Protocol for Wireless Power Transfer System with a 2-D Relay Resonator Array. - Masahiro Morita; Takuya Sasatani; Ryo Takahashi 001; Yoshihiro Kawahara (ICCE, 2020)

Itocon - a system for visualizing the congestion of bus stops around Ito campus in real-time: poster abstract. - Ryo Takahashi 001; Kenta Hayashi; Yudai Mitsukude; Masanori Futamata; Shunei Inoue; Shuta Matsuo; Shigemi Ishida; Yutaka Arakawa; Shigeru Takano (SenSys, 2020)

TelemetRing: A Batteryless and Wireless Ring-shaped Keyboard using Passive Inductive Telemetry. - Ryo Takahashi 001; Masaaki Fukumoto; Changyo Han; Takuya Sasatani; Yoshiaki Narusue; Yoshihiro Kawahara (UIST, 2020)

3D Printing Firm Inflatables with Internal Tethers. - Changyo Han; Ryo Takahashi 001; Yuchi Yahagi; Takeshi Naemura (CHI Extended Abstracts, 2021)

Surface Routing for Wireless Power Transfer Using 2-D Relay Resonator Arrays. - Masahiro Morita; Takuya Sasatani; Ryo Takahashi 001; Yoshihiro Kawahara (IEEE Access, 2021)

Twin Meander Coil: Sensitive Readout of Battery-free On-body Wireless Sensors Using Body-scale Meander Coils. - Ryo Takahashi 001; Wakako Yukita; Takuya Sasatani; Tomoyuki Yokota; Takao Someya; Yoshihiro Kawahara (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2021)

Meander Coil++: A Body-scale Wireless Power Transmission Using Safe-to-body and Energy-efficient Transmitter Coil. - Ryo Takahashi 001; Wakako Yukita; Tomoyuki Yokota; Takao Someya; Yoshihiro Kawahara (CHI, 2022)

picoRing: battery-free rings for subtle thumb-to-index input. - Ryo Takahashi 001; Eric Whitmire; Roger Boldu; Shiu S. Ng; Wolf Kienzle; Hrvoje Benko (UIST, 2024)

Friction jointing of distributed rigid capacitors to stretchable liquid metal coil for full-body wireless charging clothing. - Takashi Sato; Shinto Watanabe; Ryo Takahashi 001; Wakako Yukita; Tomoyuki Yokota; Takao Someya; Yoshihito Kawahara; Eiji Iwase; Junya Kurumida (CoRR, 2024)

Demo of picoRing mouse: ultra-low-powered wireless mouse ring with ring-to-wristband coil-based impedance sensing. - Yifan Li; Masaaki Fukumoto; Mohamed Kari; Tomoyuki Yokota; Takao Someya; Yoshihiro Kawahara; Ryo Takahashi 001 (CHI Extended Abstracts, 2025)

Plug-n-play e-knit: prototyping large-area e-textiles using machine-knitted magnetically-repositionable sensor networks. - Yifan Li; Ryo Takahashi 001; Wakako Yukita; Kanata Matsutani; Cedric Caremel; Yuhiro Iwamoto; Sunghoon Lee; Tomoyuki Yokota; Takao Someya; Yoshihiro Kawahara (TEI, 2025)

Ultra-low-power ring-based wireless tinymouse. - Yifan Li; Masaaki Fukumoto; Mohamed Kari; Shigemi Ishida; Akihito Noda; Tomoyuki Yokota; Takao Someya; Yoshihiro Kawahara; Ryo Takahashi 001 (UIST, 2025)

Demonstration of picoRing mouse: an ultra-low-powered wireless mouse ring with ring-to-wristband coil-based sensitive impedance sensing. - Yifan Li; Masaaki Fukumoto; Mohamed Kari; Tomoyuki Yokota; Takao Someya; Yoshihiro Kawahara; Ryo Takahashi 001 (CoRR, 2025)

Full-body NFC: body-scale near-field sensor networks with machine-knittable meandered e-textiles. - Ryo Takahashi 001; Changyo Han; Wakako Yukita; John S. Ho; Takuya Sasatani; Akihito Noda; Tomoyuki Yokota; Takao Someya; Yoshihiro Kawahara (CoRR, 2025)

Ultra-low-power ring-based wireless mouse. - Yifan Li; Masaaki Fukumoto; Mohamed Kari; Shigemi Ishida; Akihito Noda; Tomoyuki Yokota; Takao Someya; Yoshihiro Kawahara; Ryo Takahashi 001 (CoRR, 2025)

Joint-Repositionable Inner-Wireless Planar Snake Robot. - Ayato Kanada; Ryo Takahashi 001; Keito Hayashi; Ryusuke Hosaka; Wakako Yukita; Yasutaka Nakashima; Tomoyuki Yokota; Takao Someya; Mitsuhiro Kamezaki; Yoshihiro Kawahara; Motoji Yamamoto (IEEE Robotics Autom. Lett., 2025)

Full-body WPT: wireless powering with meandered e-textiles. - Ryo Takahashi 001; Takashi Sato; Wakako Yukita; Tomoyuki Yokota; Takao Someya; Yoshihiro Kawahara (CoRR, 2025)