Takuya Sasatani, Ph.D.

Takuya Sasatani, Ph.D.

Assistant Professor (助教)

The University of Tokyo


sasatani<at>g.ecc.u-tokyo.ac.jp


Takuya Sasatani is an Assistant Professor (助教) in the Department of Electrical Engineering and Information Systems at UTokyo. His research focuses on the development and application of wireless technologies, with a particular focus on sensor systems and neural interfaces. His recent work focuses on extending the coverage of wide-area wireless power transfer and low-power communication technologies. He is also actively developing wireless neural recording and stimulation devices to enhance our understanding of brain function.


Takuya completed his Ph.D. at UTokyo in 2021 under the guidance of Yoshihiro Kawahara. In 2017, he worked as a lab associate researcher in Alanson Sample's group at Disney Research Pittsburgh. From 2022 to 2023, he served as a postdoctoral scholar in Daniel Aharoni's group at UCLA Neurology.

Takuya has published his research in leading engineering journals (including Nature Electronics and IEEE journals) and mobile computing/HCI conferences (ACM IMWUT, MobiCom, SenSys, UIST, etc.). His contributions to the field have earned him several awards, including MIT Technology Review’s Innovators Under 35 Japan, the ACM IMWUT Distinguished Paper Award, Forbes 30 Under 30 Asia, and the JSPS Ikushi Prize (日本学術振興会育志賞).

Selected projects

Room-scale magnetoquasistatic wireless power transfer using a cavity-based multimode resonator
Room-scale magnetoquasistatic wireless power transfer using a cavity-based multimode resonator
Nature Electronics (August 2021)

*Takuya Sasatani, Alanson P. Sample, and Yoshihiro Kawahara
PDF Video Publisher Press release (English) Press release (Japanese)
Untethering open-source Miniscopes with wireless power and data transfer
Untethering open-source Miniscopes with wireless power and data transfer
SfN (November 2023)

*Takuya Sasatani, *Marcel Brosch, Zhe Dong, Federico Sangiuliano Jimka, Megha Sehgal, Hemal Semwal, Aparajeeta Guha, Hamid Chorsi, Karina Keus, Blake Madruga, and Daniel Aharoni (*co-first authors)
Video Link
MilliSign: mmWave-Based Passive Signs for Guiding UAVs in Poor Visibility Conditions
MilliSign: mmWave-Based Passive Signs for Guiding UAVs in Poor Visibility Conditions
ACM MobiCom (October 2023)

Tatsuya Iizuka, Takuya Sasatani, Toru Nakamura, Naoko Kosaka, Masaki Hisada, and Yoshihiro Kawahara
PDF Video Publisher Press release (English) Press release (Japanese)
Magnetic field estimation using Gaussian process regression for interactive wireless power system design
Magnetic field estimation using Gaussian process regression for interactive wireless power system design
arXiv (October 2025)

Yuichi Honjo, Cedric Caremel, Ken Takaki, Yuta Noma, Yoshihiro Kawahara, Takuya Sasatani
Publisher Link
Passive Reactance Compensation for Shape-Reconfigurable Wireless Power Transfer Surfaces
Passive Reactance Compensation for Shape-Reconfigurable Wireless Power Transfer Surfaces
IEEE WPTCE 2025 (June 2025)

Riku Kobayashi, Yoshihiro Kawahara, and Takuya Sasatani
PDF Link
SyncEcho: Echo-Based Single Speaker Time Offset Estimation for Time-of-Flight Localization
SyncEcho: Echo-Based Single Speaker Time Offset Estimation for Time-of-Flight Localization
SenSys 2024 (November 2024)

Hiroaki Murakami, Takuya Sasatani, Masanori Sugimoto, Issey Sukeda, Yukiya Mita, and Yoshihiro Kawahara
PDF Publisher
Camera-Based Position Estimation using Frequency-Multiplexed Luminance Gradient
Camera-Based Position Estimation using Frequency-Multiplexed Luminance Gradient
PerCom Industry Track 2024 (March 2024)

Shota Shimada, Hiroaki Murakami, Kota Tsubouchi, Takuya Sasatani, and Yoshihiro Kawahara
Publisher
Suppressing Leakage Magnetic Field in Wireless Power Transfer Using Halbach Array-Based Resonators
Suppressing Leakage Magnetic Field in Wireless Power Transfer Using Halbach Array-Based Resonators
IEEE Antennas and Wireless Propagation Letters (January 2024)

Yuichi Honjo, Cedric Caremel, Yoshihiro Kawahara, and Takuya Sasatani
PDF Publisher
Trimmed Aperture Corner Reflector for Angle-Selective Chipless RFID
Trimmed Aperture Corner Reflector for Angle-Selective Chipless RFID
IEEE Antennas and Wireless Propagation Letters (July 2023)

Tatsuya Iizuka, Naoko Kosaka, Masaki Hisada, Yoshihiro Kawahara, and Takuya Sasatani
PDF Publisher
Geometry-Based Circuit Modeling of Quasi-Static Cavity Resonators for Wireless Power Transfer
Geometry-Based Circuit Modeling of Quasi-Static Cavity Resonators for Wireless Power Transfer
IEEE Open Journal of Power Electronics (June 2022)

Takuya Sasatani, Matthew Chabalko, Yoshihiro Kawahara, and Alanson Sample
PDF Publisher
Twin Meander Coil: Sensitive Readout of Battery-free On-body Wireless Sensors Using Body-scale Meander Coils
Twin Meander Coil: Sensitive Readout of Battery-free On-body Wireless Sensors Using Body-scale Meander Coils
ACM IMWUT (December 2021)

Ryo Takahashi, Wakako Yukita, Takuya Sasatani, Tomoyuki Yokota, Takao Someya, and Yoshihiro Kawahara
PDF Video Publisher
Surface Routing for Wireless Power Transfer Using 2-D Relay Resonator Arrays
Surface Routing for Wireless Power Transfer Using 2-D Relay Resonator Arrays
IEEE Access (September 2021)

Masahiro Morita, Takuya Sasatani, Ryo Takahashi, and Yoshihiro Kawahara
PDF Publisher
Wireless Powered Dielectric Elastomer Actuator
Wireless Powered Dielectric Elastomer Actuator
IEEE Robotics and Automation Letters (July 2021)

Lai Chen, Takuya Sasatani, Keung Or, Satoshi Nishikawa, Yoshihiro Kawahara, Ryuma Niiyama, and Yasuo Kuniyoshi
PDF Publisher
Toward Wirelessly Cooperated Shape-Changing Computing Particles
Toward Wirelessly Cooperated Shape-Changing Computing Particles
IEEE Pervasive Computing (June 2021)

Junichiro Kadomoto, Takuya Sasatani, Koya Narumi, Naoto Usami, Hidetsugu Irie, Shuichi Sakai, and Yoshihiro Kawahara
PDF Publisher
Continuum Robotic Caterpillar with Wirelessly Powered Shape Memory Alloy Actuators
Continuum Robotic Caterpillar with Wirelessly Powered Shape Memory Alloy Actuators
Soft Robotics (December 2020)

Colm Mc Caffrey, Takuya Umedachi, Weiwei Jiang, Takuya Sasatani, Yoshiaki Narusue, Ryuma Niiyama, and Yoshihiro Kawahara
Publisher
Genetic Algorithm-Based Receiving Resonator Array Design for Wireless Power Transfer
Genetic Algorithm-Based Receiving Resonator Array Design for Wireless Power Transfer
IEEE Access (December 2020)

Takuya Sasatani, Yoshiaki Narusue, and Yoshihiro Kawahara
PDF Publisher
Effect of body materials on transmission efficiency and resonant frequency in wirelessly powered personal mobility devices
Effect of body materials on transmission efficiency and resonant frequency in wirelessly powered personal mobility devices
IEEE WPTC (November 2020)

Hiromasa Hayashi, Katsuhiro Hata, Takuya Sasatani, Hiroki Sato, Ryosuke Yamamura, Young ah Seong, Ryuma Niiyama, and Yoshihiro Kawahara
Publisher
TelemetRing: A batteryless and wireless ring-shaped keyboard using passive inductive telemetry
TelemetRing: A batteryless and wireless ring-shaped keyboard using passive inductive telemetry
ACM UIST (October 2020)

Ryo Takahashi, Masaaki Fukumoto, Changyo Han, Takuya Sasatani, Yoshiaki Narusue, and Yoshihiro Kawahara
Video Publisher
Coil design for wireless power transfer and communication over hinges of smart glasses
Coil design for wireless power transfer and communication over hinges of smart glasses
ISWC (September 2020)

Ken Takaki, Takuya Sasatani, Hironobu Kasashima, Yoshihiro Kawahara, and Takeshi Naemura
PDF Publisher
Ramus: A Frequency-Multiplexed Power Bus for Powering, Sensing and Controlling Robots
Ramus: A Frequency-Multiplexed Power Bus for Powering, Sensing and Controlling Robots
IEEE Robotics and Automation Letters (July 2020)

Yuki Nishizawa, Takuya Sasatani, Matthew Ishige, Yoshiaki Narusue, Takuya Umedachi, and Yoshihiro Kawahara
PDF Publisher
Infants Show Physiological Responses Specific to Parental Hugs
Infants Show Physiological Responses Specific to Parental Hugs
iScience (April 2020)

Sachine Yoshida, Yoshihiro Kawahara, Takuya Sasatani, Ken Kiyono, Yo Kobayashi, and Hiromasa Funato
PDF Publisher
Silver Tape: Inkjet-Printed Circuits Peeled-and-Transferred on Versatile Substrates
Silver Tape: Inkjet-Printed Circuits Peeled-and-Transferred on Versatile Substrates
ACM IMWUT (March 2020)

Tingyu Cheng, Koya Narumi, Youngwook Do, Yang Zhang, Tung D. Ta, Takuya Sasatani, Eric Markvicka, Yoshihiro Kawahara, Lining Yao, Gregory D. Abowd, and HyunJoo Oh
PDF Video Publisher
Topology Construction Protocol for Wireless Power Transfer System with a 2-D Relay Resonator Array
Topology Construction Protocol for Wireless Power Transfer System with a 2-D Relay Resonator Array
IEEE ICCE (January 2020)

Masahiro Morita, Takuya Sasatani, Ryo Takahashi, and Yoshihiro Kawahara
Publisher
Design of Wireless Power Transfer Systems for Personal Mobility Devices in City Spaces
Design of Wireless Power Transfer Systems for Personal Mobility Devices in City Spaces
IEEE VTC (September 2019)

Hiromasa Hayashi, Takuya Sasatani, Yoshiaki Narusue, and Yoshihiro Kawahara
Publisher
Alvus: A Reconfigurable 2-D Wireless Charging System
Alvus: A Reconfigurable 2-D Wireless Charging System
ACM IMWUT (June 2019)

Kazunobu Sumiya, Takuya Sasatani, Yuki Nishizawa, Kenji Tsushio, Yoshiaki Narusue, and Yoshihiro Kawahara
PDF Video Publisher
A Cuttable Wireless Power Transfer Sheet
A Cuttable Wireless Power Transfer Sheet
ACM IMWUT (December 2018)

Ryo Takahashi, Takuya Sasatani, Fuminori Okuya, Yoshiaki Narusue, and Yoshihiro Kawahara
PDF Video Publisher Press release (English) Press release (Japanese)
Room-Wide Wireless Charging and Load-Modulation Communication via Quasistatic Cavity Resonance
Room-Wide Wireless Charging and Load-Modulation Communication via Quasistatic Cavity Resonance
ACM IMWUT (December 2018)

Takuya Sasatani, Chouchang Jack Yang, Matthew J. Chabalko, Yoshihiro Kawahara, and Alanson P. Sample
PDF Publisher Press release (English)
Dynamic Complex Impedance Tuning Method Using a Multiple-Input DC/DC Converter for Wireless Power Transfer
Dynamic Complex Impedance Tuning Method Using a Multiple-Input DC/DC Converter for Wireless Power Transfer
IEEE WPTC (June 2018)

Takuya Sasatani, Yoshiaki Narusue, and Yoshihiro Kawahara
Publisher
Multimode Quasistatic Cavity Resonators for Wireless Power Transfer
Multimode Quasistatic Cavity Resonators for Wireless Power Transfer
IEEE Antennas and Wireless Propagation Letters (August 2017)

Takuya Sasatani, Matthew J. Chabalko, Yoshihiro Kawahara, and Alanson P. Sample
PDF Publisher
Passive and contactless epidermal pressure sensor printed with silver nano-particle ink
Passive and contactless epidermal pressure sensor printed with silver nano-particle ink
ACM UbiComp (September 2016)

Takahiro Hashizume, Takuya Sasatani, Koya Narumi, Yoshiaki Narusue, Yoshihiro Kawahara, and Tohru Asami
Publisher