参考文献:
Laborde, Edgardo Robinson, Louise Meng, Fanying Peterson, Brian T. Villar, Hugo O. Anuskiewicz, Steven E. Ishiwata, Yoshiro Yokochi, Shoji Matsumoto, Yukiharu Kakigami, Takuji Inagaki, Hideaki Jomori, Takahito Matsushima, Kouji Patent: US2003/105085 A1, 2003