参考文献

Canon Kabushiki Kaisha; TANI, Yutaka; HIROSE, Masashi; TOYODA, Takayuki; MURAI, Yasuaki; TANAKA, Masatake; KAWAMURA, Masashi; INOUE, Kei; HASEGAWA, Yuki Patent: EP2615142 A1, 2013 ; Location in patent: Paragraph 0148; 0149 ;