Analysis and Design of Load-Independent Class-E Zero-Voltage Switching Power Oscillator Yutaro Komiyama, Wenqi Zhu, Akihiro Konishi, Kien Nguyen, and Hiroo Sekiya. IEEE Transactions on Circuits and Systems I: Regular Papers, Aug. 2025. [Abstract | pdf] 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 Nguyen,Hiroo Sekiya international journal of circuit theory and applications., Feb. 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] 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]

Securing Dual Perigee: Enhancing Strong Connectivity and Collusion Resilience in IoT Blockchain Networks Aldo Sigfrido Calderoni Echeverri, Koki Koshikawa, Kien Nguyen, Yoon-Ho Choi 2025 International Symposium on Nonlinear Theory and Its Applications, Oct. 2025. [Abstract | pdf] Vivaldi-based Virtual Coordinate System for IoT Blockchain Koki Koshikawa, Yue Su, Won-Joo Hwang, Yoon-Ho Choi, Kien Nguyen, Hiroo Sekiya 2025 International Symposium on Nonlinear Theory and Its Applications, Oct. 2025. [Abstract | pdf] Generalized performance analysis of Class-EF inverter Tomoya Shiono, Yutaro Komiyama, Kien Nguyen, Hiroo Sekiya International SoC Design Conference, 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] 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] 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] 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] 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] 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] 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]

負荷非依存FSK方式同時無線電力とデータ伝送システム (in Japanese) Yinchen Xie, Wenqi Zhu, Yutaro Komiyama, Ayano Komanaka, Kien Nguyen, and Hiroo Sekiya IEICE Technical Committee on Electronics, Communications and Energy (EE), Oct. 2025. [Abstract | pdf] Investigating Workloads of Broker Account in BrokerChain-based Sharding IoT-Blockchain Yue Su, Yang Xiang, Kien Nguyen, Hiroo Sekiya , Sept. 2025. [Abstract | pdf] An Experimental Study of Fingerprint-based Localization in 5G Ultra Dense Network Yang Xiang, Yue Su, Kien Nguyen, Hiroo Sekiya , Sept. 2025. [Abstract | pdf] IoT ブロックチェーン仮想座標系の実装と評価 (in Japanese) Koki Koshikawa, Jong-Deok Kim, Won-Joo Hwang, Kien Nguyen, and Hiroo Sekiya The 24th Forum on Information Science and Technology (FIT2025), Sept. 2025. [Abstract | pdf] FPGAを用いたコオロギ聴覚特徴検出回路の生体模倣 (in Japanese) Seiya Honma, Ondo Ota, Ryuji Nagasawa, Kien Nguyen, and Hiroo Sekiya 2025 IEICE NOLTA Society, June 2025. [Abstract | pdf] 遺伝的アルゴリズムを用いたE2級LLCコンバータの数値最適設 (in Japanese) Rintaro Kanaiso, Bun-Ei Jo, Wenqi Zhu, Kien Nguyen, and Hiroo Sekiya 2025 IEICE NOLTA Society, June 2025. [Abstract | pdf] Modeling of Magnetic Component with Low Permeability Core and Its Application to Machine Learning-Based High-Frequency Converter Designs (in Japanese) Bun-Ei Jo, Hiroshi Osawa, Daisuke Miyagi, Ayano Komanaka, Akihiro Konishi, Wenqi Zhu, Kien Nguyen, and Hiroo Sekiya 2025 IEICE NOLTA Society, June 2025. [Abstract | pdf] Design Method for Load-Independent WPT Systems Using Numerical Optimization (in Japanese) Naoki Fukuda, Yinchen Xie, Ayano Komanaka, Kien Nguyen, and Hiroo Sekiya 2025 IEICE NOLTA Society, June 2025. [Abstract | pdf] APCMAを用いた無線SNNによるMNIST分類 (in Japanese) Haruto Ota, Ryuji Nagasawa, Kien Nguyen, and Hiroo Sekiya 2025 IEICE NOLTA Society, June 2025. [Abstract | pdf] 負荷非依存EF級インバータを用いた電界結合型無線電力伝送システムの解析と設計 (in Japanese) Takumi Kobayashi, Ayano Komanaka, Kien Nguyen, and Hiroo Sekiya 2025 IEICE NOLTA Society, June 2025. [Abstract | pdf] トランスの漏れ磁束で共振させるE2級LLCコンバータの数値最適設計法 (in Japanese) Rintaro Kanaiso, Bun-Ei Jo, Yutaro Komiyama, Ayano Komanaka, Yinchen Xie, Wenqi Zhu, Akihiro Konishi, Kien Nguyen, and Hiroo Sekiya IEICE Technical Committee on Electronics, Communications and Energy (EE), pp.1-6, Apr. 2025. [Abstract | pdf] 負荷変動と位置ずれにロバストな電界結合無線電力伝送システム (in Japanese) Takumi Kobayashi, Akihiro Konishi, Ayano Komanaka, Yasumasa Naka, Hiroaki Ota, Yuki Ito, Taichi Mishima, Takeshi Uematsu, Kien Nguyen, and Hiroo Sekiya , Apr. 2025. [Abstract | pdf] Wi-Fiのチャネル状態情報を用いた周期運動の振動数推定 (in Japanese) Ryohei Kameoka, Koichi Tokunaga, Kien Nguyen, Jin Ma, Hiroo Sekiya, and Shigeo Shioda IEICE Technical Committee on Communication Quality, vol.124, no.404, pp.134-139, Mar. 2025. [Abstract | pdf] 低透磁率コアを使用したトランスのモデリングと高周波コンバータ設計最適化 (in Japanese) Wenying Xu, Hiroshi Osawa, Daisuke Miyagi, Ayano Komanaka, Akihiro Konishi, Wenqi Zhu, Kien Nguyen, and Hiroo Sekiya. IEICE Technical Committee on Electronics, Communications and Energy (EE), Jan. 2025. [Abstract | pdf] Analyzing Performance Tradeoffs in Sharding Blockchain System Yue Su, Yang Xiang, Kien Nguyen, Sekiya Hiroo IEICE Technical Committee on Sensor Networks and Mobile Intelligence (SeMI), Jan. 2025. [Abstract | pdf] 送受電器間における無線通信制御が不要なCC/CV ZVS高周波無線電力伝送システムの解析と設計 (in Japanese) Ayano Komanaka, Jiaxin Yan, Yutaro Komiyama, Yinchen Xie, Akihiro Konishi, Wenqi Zhu, Xiuqin Wei, Kien Nguyen, and Hiroo Sekiya IEICE Technical Committee on Electronics, Communications and Energy (EE), Jan. 2025. [Abstract | pdf]