参考文献
Komatsu, Hironori; Awano, Hirokazu; Fukazawa, Nobuyuki; Ito, Kiyoshi; Ikeda, Ichirou; Araki, Tadashi; Nakamura, Takeshi; Asano, Tamotsu; Fujiwara, Junya; Ando, Tomoyuki; Tsuchiya, Katsutoshi; Maruyama, Kyoko; Umetani, Hideki; Yamauchi, Takahiro; Miyake, Hitoki
Patent: US2002/193314 A1, 2002 ;