参考文献

SATOH, Motohide; Aramaki, Hisateru; Yamashita, Masaki; Inoue, Masafumi; Kawakami, Hiroshi; Shinkai, Hisashi; Nakamura, Hiroshi; Matsuzaki, Yuji; Wamaki, Shuichi Patent: US2008/207618 A1, 2008 ; Location in patent: Page/Page column 33-34 ;