(19)
(11) EP 1 169 150 A1

(12)

(43) Date of publication:
09.01.2002 Bulletin 2002/02

(21) Application number: 00917404.6

(22) Date of filing: 21.04.2000
(51) International Patent Classification (IPC)7: B21D 3/05, B21B 17/14, B21B 13/12, B21B 31/02
(86) International application number:
PCT/JP0002/612
(87) International publication number:
WO 0064/606 (02.11.2000 Gazette 2000/44)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 21.04.1999 JP 15037999

(71) Applicant: Nakata Manufacturing Company Limited
Osaka-shi Osaka 532-0005 (JP)

(72) Inventors:
  • KIUCHI, Manabu
    Zushi-shi,Kanagawa 249-0007 (JP)
  • WANG, Feizhou
    Nishinomiya-shi,Hyogo 662-0954 (JP)

(74) Representative: Wright, Howard Hugh Burnby et al
Withers & Rogers, Goldings House, 2 Hays Lane
London SE1 2HW
London SE1 2HW (GB)

   


(54) METHOD FOR MANUFACTURING A PIPE WITH A NOT CIRCULAR CROSS-SECTION AND DEVICE THEREFOR