Cache Policy Based on Popularity Dynamics of YouTube Video Content. - Koki Nagata; Noriaki Kamiyama; Miki Yamamoto (CCNC, 2020)

Hype Dlive: XR Live Performance System for Improving Passenger Comfort in Autonomous Driving. - Takuto Akiyoshi; Masashi Abe; Yuki Shimizu; Yusaku Takahama; Koki Nagata; Yosuke Okami; Taishi Sawabe (HAI, 2022)

Hype D-Live: XR Live Music System to Entertain Passengers for Anxiety Reduction in Autonomous Vehicles. - Takuto Akiyoshi; Yuki Shimizu; Yusaku Takahama; Koki Nagata; Taishi Sawabe (ISMAR, 2023)

DDS-based Multiphase Local Oscillator Generator for Fast-Beam-Switching Phased-Array Antennas. - Shuichi Inaguma; Koki Nagata; Hideyuki Nosaka (RWS, 2024)

Multi-task exercise increases delta power in non-rapid eye movement sleep among older female adults: A randomized crossover trial. - Jaehee Lee; Koki Nagata; Jaehoon Seol; Insung Park; Kumpei Tokuyama; Masashi Yanagisawa; Tomohiro Okura (NeuroImage, 2025)