(19)
(11) EP 1 333 952 A1

(12)

(43) Date of publication:
13.08.2003 Bulletin 2003/33

(21) Application number: 01970199.4

(22) Date of filing: 25.09.2001
(51) International Patent Classification (IPC)7B23K 1/00, B23K 1/19, B23K 1/20, B23K 101/14, B23K 103/10, F28F 1/30
(86) International application number:
PCT/JP0108/294
(87) International publication number:
WO 0202/4390 (28.03.2002 Gazette 2002/12)
(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: 25.09.2000 JP 2000000089
28.03.2001 JP 2001000921
02.07.2001 US 301848 P
03.09.2001 JP 2001000265

(71) Applicant: Showa Denko K.K.
Tokyo 105-0012 (JP)

(72) Inventors:
  • ASHIDA, Koji,c/o Oyama Regional Office
    Oyama shi,Tochigi 323-0811 (JP)
  • OSAME, Yasuhiro,c/o Oyama Regional Office
    Oyama shi,Tochigi 323-0811 (JP)
  • KAWABATA, Hiroyuki,c/o Oyama Regional Office
    Oyama-shi,Tochigi 323-0811 (JP)
  • HODZUMI, Satoshi,c/o Oyama Regional Office
    Oyama-shi,Tochigi 323-0811 (JP)
  • SAKAGUCHI, Masashi,c/o Sakai Regional Office
    Sakai-shi,Osaka 590-0982 (JP)

(74) Representative: Jentschura, Rolf, Dipl.-Ing. 
Patentanwälte Viering & JentschuraPostfach 22 14 43
80504 München
80504 München (DE)

   


(54) METHOD FOR MANUFACTURING HEAT EXCHANGER