参考文献

KUNTZ, KEVIN W.; CHESWORTH, RICHARD; DUNCAN, KENNETH W.; KEILHACK, HEIKE; WARHOLIC, NATALIE; KLAUS, CHRISTINE; ZHENG, WANJUN; SEKI, MASASHI; SHIROTORI, SYUJI; KAWANO, SATOSHI Patent: US2012/264734 A1, 2012 ; Location in patent: Page/Page column 172 ; US 20120264734 A1