-
*Shoichi Matsuda
Department of Mechanical Systems Engineering, Faculty of Engineering, University of the Ryukyus
-
Naomichi Saji
Graduate student, Faculty of Eng., Univ. of the Ryukyus
-
Izuru Senaha
Department of Mechanical Systems Engineering, Faculty of Engineering, University of the Ryukyus
-
Sumio Kato
Department of Mechanical Systems Engineering, Faculty of Engineering, University of the Ryukyus