| 2017 | IECON | Attitude control of a camera mounted-type tethered quadrotor for infrastructure inspection. | Keigo Watanabe, Nao Moritoki, Isaku Nagai |
| 2016 | IECON | Development of an omnidirectional mobile platform with a rocker-bogie suspension system. | Yuki Mori, Keigo Watanabe, Isaku Nagai |
| 2016 | IECON | Path estimation of a shopping cart using a particle filter and an environment map. | Daiki Sasakura, Keigo Watanabe, Isaku Nagai |
| 2016 | IECON | Development of a camera-mounted tethered Quadrotor for inspecting infrastructures. | Keigo Watanabe, Keisuke Kinoshita, Isaku Nagai, Maki K. Habib |
| 2015 | IROS | Path tracking by a mobile robot equipped with only a downward facing camera. | Isaku Nagai, Keigo Watanabe |
| 2015 | IECON | Closed-loop control experiments for a blimp robot consisting of four-divided envelopes. | Keigo Watanabe, Naoto Okamura, Isaku Nagai |
| 2013 | IROS | Tip-over stability control for a holonomic omnidirectional mobile robot with active dual-wheel caster assemblies using SGCMG. | M. Juhairi Aziz Safar, Keigo Watanabe, Shoichi Maeyama, Isaku Nagai |
| 2013 | IECON | A CPG design of considering the attitude for the propulsion control of a Manta robot. | Masaaki Ikeda, Shigeki Hikasa, Keigo Watanabe, Isaku Nagai |
| 2010 | IROS | Noncontact position estimation device with optical sensor and laser sources for mobile robots traversing slippery terrains. | Isaku Nagai, Keigo Watanabe, Keiji Nagatani, Kazuya Yoshida |
| 1998 | ACCV | Illumination Color from the Blurred Inter-reflection of a Reference Nose. | Mohamed Abdellatif, Yutaka Tanaka, Akio Gofuku, Isaku Nagai |