Development of Both-Ends Supported Flexible Auger for Lunar Earthworm-Type Excavation Robot LEAVO. - Ami Fujiwara; Toyoharu Nakatake; Naoaki Tadami; Keita Isaka; Yasuyuki Yamada; Hirotaka Sawada; Taro Nakamura 001; Takashi Kubota (AIM, 2018)

Water Jetting Excavation and Consideration of Earth Auger Shape to Reduce Drilling Torque for Seabed Robotic Explorer. - Keita Isaka; Naoaki Tadami; Ami Fujiwara; Toyoharu Nakatake; Makoto Sugesawa; Yasuyuki Yamada; Hiroshi Yoshida; Taro Nakamura 001 (AIM, 2018)

Underwater Excavation by Excavation Robot Equipped with Propulsion Unit Based on Earthworm Setae. - Naoaki Tadami; Keita Isaka; Toyoharu Nakatake; A. Fujiwara; Yasuyuki Yamada; Taro Nakamura 001; M. Sugesawa; Hiroshi Yoshida (ROBIO, 2018)

Study on Drilling Resistance Reduction of a Seafloor Robotic Explorer Based on the Drilling Properties of Underwater Ground. - Keita Isaka; Naoaki Tadami; A. Fujiwara; Tomoki Watanabe; M. Sugesawa; Y. Yamada; Hiroshi Yoshida; Tomoki Nakamura (SII, 2019)

Development of Underwater Drilling Robot Based on Earthworm Locomotion. - Keita Isaka; Kazuki Tsumura; Tomoki Watanabe; Wataru Toyama; Makoto Sugesawa; Yasuyuki Yamada; Hiroshi Yoshida; Taro Nakamura 001 (IEEE Access, 2019)

Effect of penetration force on drilling efficiency for seabed drilling robot. - Wataru Toyama; Keita Isaka; Kazuki Tsumura; Tomoki Watanabe; Manabu Okui; Hiroshi Yoshida; Taro Nakamura 001 (AIM, 2020)

Clay Drilling Performance of Seabed Robotic Explorer Using Peristaltic Motion. - Keita Isaka; Kazuki Tsumura; Tomoki Watanabe; Wataru Toyama; Manabu Okui; Hiroshi Yoshida; Taro Nakamura 001 (SII, 2020)

Soil Discharging Mechanism Utilizing Water Jetting to Improve Excavation Depth for Seabed Drilling Explorer. - Keita Isaka; Kazuki Tsumura; Tomoki Watanabe; Wataru Toyama; Manabu Okui; Hiroshi Yoshida; Taro Nakamura 001 (IEEE Access, 2020)

Excavation Experiment of Earth Worm Type Seabed Exploration Robot in Actual Sea Area. - Manabu Okui; Ryosuke Tokoi; Wataru Toyama; Kazuki Tsumura; Keita Isaka; Tomoki Watanabe; Taro Nakamura 001; Hiroshi Yoshida (CLAWAR, 2021)