A study on estimation wire obstacle using ultrasonic sensors and planning for avoidance. - Kouji Higashijima; Hiromu Onda; Tsukasa Ogasawara (IROS, 1998)

Application of live line work robots for distribution work: Kyushu Electric's challenges for fully-automated robotic system. - Shinji Murakami; Kyoji Yanoyasuo; Kouji Higashijima; Hitoshi Wakizako; Keiichi Takaoka; Toshimitsu Irie; Jun Goto; Tsutomu Hasegawa (Adv. Robotics, 2001)