(19)

(11)

EP 1 277 208 A1

(12)

(43) Date of publication: 22.01.2003 Bulletin 2003/04 (21) Application number: 01917133.9 (22) Date of filing: 05.03.2001

(51) International Patent Classification (IPC)7: G11B 20/18 (86) International application number: PCT/FI0100/213 (87) International publication number: WO 0106/7451 (13.09.2001 Gazette 2001/37)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 07.03.2000 FI 20000523 (71) Applicants: Kauppinen, Ismo 20100 Turku (FI) Kauppinen, Jyrki 21350 Ilmarinen (FI)	(72) Inventors: Kauppinen, Ismo 20100 Turku (FI) Kauppinen, Jyrki 21350 Ilmarinen (FI) (74) Representative: Heikkilä, Hannes Antero  Turun Patenttitoimisto Oy,P.O. Box 99 20521 Turku 20521 Turku (FI)