(19)

(11)

EP 1 625 340 A1

(12)

(43) Date of publication: 15.02.2006 Bulletin 2006/07 (21) Application number: 04733971.8 (22) Date of filing: 19.05.2004

(51) International Patent Classification (IPC):  F28F 1/30(1968.09) (86) International application number: PCT/JP2004/007160 (87) International publication number: WO 2004/102102 (25.11.2004 Gazette 2004/48)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 19.05.2003 JP 2003140400 16.06.2003 US 478360 P (71) Applicant: Showa Denko K.K. Tokyo 105-8518 (JP)	(72) Inventor: YAMAUCHI, Shinobu, c/o Oyama Regional Office Oyama-shi, Tochigi 323-0811 (JP) (74) Representative: Viering, Jentschura & Partner  Steinsdorfstrasse 6 80538 München 80538 München (DE)