Hamada, Takashi [P:(DE-HGF)0] ; Zhao, Yue [P:(DE-HGF)0] ; Yoshimura, Kimio [P:(DE-HGF)0] ; Radulescu, Aurel [P:(DE-Juel1)130905] ; Ohwada, Kenji [P:(DE-HGF)0] ; Maekawa, Yasunari [P:(DE-HGF)0]