参考文献

Tsunoda, Hidetoshi; Fukazawa, Nobuyuki; Nagase, Hiroshi; Chiba, Kyoko; Nakao, Toshifumi; Asada, Noriaki; Yamaki, Toshifumi; Kibayashi, Kenji; Migita, Hideyuki; Morikawa, Maki Patent: US2003/212100 A1, 2003 ;