Semi-automatic Collection of Marine Debris by Collaborating UAV and UUV. - Naoki Shirakura; Takuya Kiyokawa; Hikaru Kumamoto; Jun Takamatsu; Tsukasa Ogasawara (IRC, 2020)

Underwater Suction Gripper for Object Manipulation with an Underwater Robot. - Hikaru Kumamoto; Naoki Shirakura; Jun Takamatsu; Tsukasa Ogasawara (ICM, 2021)

Collection of Marine Debris by Jointly Using UAV-UUV With GUI for Simple Operation. - Naoki Shirakura; Takuya Kiyokawa; Hikaru Kumamoto; Jun Takamatsu; Tsukasa Ogasawara (IEEE Access, 2021)

Autonomous service robot for human-aware restock, straightening and disposal tasks in retail automation. - Gustavo Alfonso Garcia Ricardez; Pedro Miguel Uriguen Eljuri; Yuta Kamemura; Shiori Yokota; Noriyuki Kugou; Yoshitatsu Asama; Ziyu Wang; Hikaru Kumamoto; Kotaro Yoshimoto; Wai Y. Chan; Tomoki Nagatani; Pattaraporn Tulathum; et al. (Adv. Robotics, 2022)

Exploring the role of large language model in collaborative travel planning task. - Hikaru Kumamoto; Hideo Joho (Inf. Res., 2025)