(19)

(11)

EP 1 781 909 A1

(12)

(43) Date of publication: 09.05.2007 Bulletin 2007/19 (21) Application number: 05757102.8 (22) Date of filing: 30.06.2005

(51) International Patent Classification (IPC):  F01N 3/20(2006.01) B01D 53/96(2006.01) F01N 3/08(2006.01) B01D 53/94(2006.01) (86) International application number: PCT/IB2005/001861 (87) International publication number: WO 2006/006031 (19.01.2006 Gazette 2006/03)

(84) Designated Contracting States: DE FR GB (30) Priority: 05.07.2004 JP 2004198310 (71) Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA Toyota-shi, Aichi-ken 471-8571 (JP)	(72) Inventors: Yoshida, Kohei Toyota-shi, Aichi-ken 471-8571 (JP) Hayashi, Kotaro Aichi-ken 471-8571 (JP) (74) Representative: TBK-Patent  Bavariaring 4-6 80336 München 80336 München (DE)