Consideration of Local Wind Energy. - Kouki Yamaji; Takaaki Hashimoto; Shoushi Inoue; Yutaka Konishi (J. Robotics Mechatronics, 1998)

Deformation of Windmill Support and Operation. - Kouki Yamaji; Shoushi Inoue; Terumi Yamamoto; Yutaka Konishi; Takaaki Hashimoto (J. Robotics Mechatronics, 1998)

A Study of the Multipurpose Intelligent Guided Vehicle for Education. - Kouki Yamaji; Shinichiro Kamiya (J. Robotics Mechatronics, 1999)

Research on Variable Cylinders of the Tandem 4-Cylinder Gasoline Engine for Fuel Economy. - Kouki Yamaji; Hirokazu Suzuki (J. Robotics Mechatronics, 2008)