(19)

(11)

EP 1 658 436 A1

(12)

(43) Date of publication: 24.05.2006 Bulletin 2006/21 (21) Application number: 04771915.8 (22) Date of filing: 13.08.2004

(51) International Patent Classification (IPC):  F04B 43/08(1968.09) (86) International application number: PCT/JP2004/011954 (87) International publication number: WO 2005/019647 (03.03.2005 Gazette 2005/09)

(84) Designated Contracting States: DE FR GB (30) Priority: 25.08.2003 JP 2003300038 (71) Applicant: SEIKO EPSON CORPORATION Shinjuku-ku, Tokyo 163-0811 (JP)	(72) Inventor: AKAHORI, Yutaka, c/o Seiko Epson Corporation Suwa-Shi, Nagano 392-8502 (JP) (74) Representative: Hoffmann, Eckart  Patentanwalt, Bahnhofstrasse 103 82166 Gräfelfing 82166 Gräfelfing (DE)