(19)
(11) EP 1 047 640 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
21.11.2007 Bulletin 2007/47

(45) Mention of the grant of the patent:
26.09.2007 Bulletin 2007/39

(21) Application number: 99953973.7

(22) Date of filing: 08.11.1999
(51) International Patent Classification (IPC): 
C03B 37/012(2006.01)
 C03B 23/207(2006.01)
(86) International application number:
PCT/EP1999/008538
(87) International publication number:
WO 2000/027766 (18.05.2000 Gazette 2000/20)

(54)

METHOD FOR PRODUCING OPTICAL FIBER PREFORM

VERFAHREN ZUR HERSTELLUNG EINER VORFORM FÜR OPTISCHE FASERN

PROCEDE DE PRODUCTION D'UNE PREFORME DE FIBRE OPTIQUE

(84) Designated Contracting States:
DE FI FR GB IT NL

(30) Priority: 09.11.1998 JP 31798198

(43) Date of publication of application:
02.11.2000 Bulletin 2000/44

(73) Proprietors:
  • Heraeus Quarzglas GmbH & Co. KG
    63450 Hanau (DE)
  • SHIN-ETSU QUARTZ PRODUCTS CO., LTD.
    Shinjuku-ku, Tokyo 160-0023 (JP)

(72) Inventors:
  • SUZUKI, Masanori
    Koriyama-shi, Fukushima 963-8041 (JP)
  • KATO, Toshiyuki
    Koriyama-shi, Fukushima 963-0702 (JP)
  • SHIMADA, Atsuhi
    Koriyama-shi, Fukushima 963-0111 (JP)
  • WATABE, Yutaka
    Koriyama-shi, Fukushima 963-0104 (JP)

(74) Representative: Staudt, Armin Walter et al
Patentanwalt Auf der Mauer 8
63674 Altenstadt
63674 Altenstadt (DE)


(56) References cited: : 
WO-A-98/43921
   
  • PATENT ABSTRACTS OF JAPAN vol. 5, no. 35 (C-46) [707], 5 March 1981 (1981-03-05) & JP 55 162441 A (NIPPON DENSHIN DENWA KOSHA), 17 December 1980 (1980-12-17)
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).