Hibi, Shigeki; Hoshino, Yorihisa; Kikuchi, Koichi; Shin, Kogyoku; Takahashi, Yoshinori; Fujisawa, Masae; Shibata, Hisashi; Ino, Mitsuhiro Patent: US2004/224974 A1, 2004 ; Location in patent: Page 60 ; US 20040224974 A1