Pre-processing of CSI signal for Wi-Fi sensing-based motion detection Koichi Tokunaga, Yang Xiang, Ryuji Nagazawa, Ryohei Kameoka, Kien Nguyen, Jing Ma, Shigeo Shioda, Hiroo Sekiya Nonlinear Theory and Its Applications, IEICE, vol.16, pp.506-518, July 2025. [Abstract | pdf] ML-Based Fully-Numerical Design Method for Load-Independent Class-EF WPT Systems Naoki Fukuda, Yutaro Komiyama, Wenqi Zhu, Yinchen Xie, Ayano Komanaka, Akihiro Konishi, Kien Nguyen, and Hiroo Sekiya IEEE Transactions on Circuits and Systems I: Regular Papers, June 2025. [Abstract | pdf] Comparative Experiment of Conventional and Dynamic Theories for Wireless Power Transfer Chi Dat Pham, Nam Ha-Van, Minh Thuy Le, Kien Nguyen, Hiroo Sekiya IEEE Microwave and Wireless Technology Letters, pp.1-4, May 2025. [Abstract | pdf] Quantum annealing-based sum rate maximization for multi-UAV-aided wireless networks Seon-Geun Jeong, Pham Dang Anh Duc, Quang Vinh Do, Dae-Il Noh, Nguyen Xuan Tung, Trinh Van Chien, Quoc-Viet Pham, Mikio Hasegawa, Hiroo Sekiya, Won-Joo Hwang IEEE Internet of Things Journal, 2025(Early Access), Apr. 2025. [Abstract | pdf] Analysis and design of high-frequency multiple-output wireless power transfer system with load-independent class-E/F inverter Hanxiao Wang,Yutaro Komiyama,Xiuqin Wei ,Akihiro Konishi,Kien Nguyen1,Hiroo Sekiya international journal of circuit theory and applications., Feb. 2025. [Abstract | pdf] High-Frequency Load-Independent WPT System for Multiple-Receiver with LCC-S Compensators Akihiro Konishi; Ken Onodera; Yutaro Komiyama; Xiuqin Wei; Kien Nguyen; Hiroo Sekiya IEEJ Journal of Industry Applications, vol.14, no.1, pp.20-29, Jan. 2025. [Abstract | pdf] Phase-Shift Controlled Push-Pull Class-E Inverter With Diode Balance for Load Impedance Variations Yutaro Komiyama, Wenqi Zhu, Akihiro Konishi, Ayano Komanaka, Yinchen Xie, Kien Nguyen, Hiroo Sekiya, Tatsuya Ikenari IEEE Transactions on Power Electronics, pp.1-14, Jan. 2025. [Abstract | pdf]

Modeling of Magnetic Component with Low Permeability Core and Its Application to Machine Learning-Based High-Frequency Converter Designs Wenying XU, Hiroshi OSAWA, Daisuke MIYAGI, yano KOMANAKA, Akihiro KONISHI, Wenqi ZHU, Kien NGUYEN, Hiroo SEKIYA IEEE Energy Conversion Congress & Expo, Oct. 2025. [Abstract | pdf] Load-Independent Class-E Synchronous Rectifier With Passive Feedforward Network Yutaro Komiyama, Akihiro Konishi, Kien Nguyen, and Hiroo Sekiya IEEE Energy Conversion Congress & Expo, Oct. 2025. [Abstract | pdf] Investigating Impacts of Uneven Node Distribution and Cross-shard Transactions on Sharding IoT-Blockchain Systems Yue Su, Yang Xiang, Kien Nguyen, and Hiroo Sekiya CONFERENCE ON INFORMATION TECHNOLOGY AND ITS APPLICATIONS & Expo, 2025.7.14-15 , July 2025. [Abstract | pdf] A Latency Evaluation of Overlay Network Topologies in IoT-Blockchain Koki Koshikawa, Ryosuke Otake, Yue Su, Yoon-Ho Choi, Jong-Deok Kim, Kien Nguyen, Hiroo Sekiya The International Workshop on Complex Communication and Multimedia Sciences, July 2025. [Abstract | pdf] CC/CV ZVS WPT System Without Any Feedback from Receiver to Transmitter Ayano Komanaka, Jiaxin Yan, Yutaro Komiyama, Yinchen Xie, Akihiro Konishi, Kien Nguyen, Hiroo Sekiya, Xiuqin Wei, Wenqi Zhu 2025 IEEE International Symposium on Circuits and Systems, May 2025. [Abstract | pdf] Machine Learning-Based Design of Load-Independent WPT Systems Naoki Fukuda , Yutaro Komiyama, Wenqi Zhu, Yinchen Xie, Ayano Komanaka , Akihiro Konishi, Kien Nguyen, and Hiroo Sekiya 2025 IEEE International Symposium on Circuits and Systems, May 2025. [Abstract | pdf] Design of Indoor Occupancy Estimation System with Wireless Brain-Inspired Computing Platform Ryuji Nagazawa, Haruto Ota, Kien Nguyen, Won-Joo Hwang, Hiroyuki Torikai, Mikio Hasegawa, Hiroo Sekiya The 19th Annual IEEE International Systems Conference, Apr. 2025. [Abstract | pdf] Analysis and Design of Capacitive Coupling Wireless Power Transfer System Using Load-Independent Class-EF Inverter Takumi Kobayashi, Yutaro Komiyama, Akihiro Konishi, Hiroaki Ota, Yuki Ito, Taichi Mishima, Takeshi Uematsu, Kien Nguyen, Hiroo Sekiya IEEE Applied Power Electronics Conference (APEC2025), Mar. 2025. [Abstract | pdf]

(in Japanese) , June 2025. [Abstract | pdf]  (in Japanese) , June 2025. [Abstract | pdf]  (in Japanese) , June 2025. [Abstract | pdf]  (in Japanese) , June 2025. [Abstract | pdf]  (in Japanese) , June 2025. [Abstract | pdf]  (in Japanese) , June 2025. [Abstract | pdf]  (in Japanese) , Apr. 2025. [Abstract | pdf]  (in Japanese) , pp.1-6, Apr. 2025. [Abstract | pdf]  (in Japanese) , vol.124, no.404, pp.134-139, Mar. 2025. [Abstract | pdf]  (in Japanese) , Jan. 2025. [Abstract | pdf]  (in Japanese) , Jan. 2025. [Abstract | pdf] Analyzing Performance Tradeoffs in Sharding Blockchain System Yue Su・Yang Xiang・Kien Nguyen・Sekiya Hiroo , Jan. 2025. [Abstract | pdf]