(19)
(11) EP 1 036 766 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: 00104461.9

(22) Date of filing: 07.03.2000
(51) International Patent Classification (IPC): 
C01G 23/00(2006.01)

(54)

Potassium titanate fine particles

Feine Kaliumtitanat-Teilchen

Particules fines de titanate de potassium

(84) Designated Contracting States:
DE FR IT

(30) Priority: 08.03.1999 JP 10303399

(43) Date of publication of application:
20.09.2000 Bulletin 2000/38

(73) Proprietor: JFE Mineral Company, Ltd.
Tokyo 100-0005 (JP)

(72) Inventor:
  • Konnai, Hidefumi c/o Research Lab. of JPE MINERAL COMPANY, LTD
    Chiba 260-0826 (JP)

(74) Representative: Casalonga, Axel et al
Bureau Casalonga & Josse Bayerstrasse 71/73
80335 München
80335 München (DE)


(56) References cited: : 
US-A- 4 652 439
   
  • JUNG K T ET AL: "SYNTHESIS OF HIGH SURFACE AREA POTASSIUM HEXATITANATE POWDERS BY SOL-GEL METHOD" JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY,NL,KLUWER ACADEMIC PUBLISHERS, DORDRECHT, vol. 6, no. 3, 1 January 1996 (1996-01-01), pages 227-233, XP000596502 ISSN: 0928-0707
  • CHEMICAL ABSTRACTS, vol. 118, no. 12, 22 March 1993 (1993-03-22) Columbus, Ohio, US; abstract no. 105869, TAKAHARA, KOICHI ET AL: "Alkali metal titanate powder, and its manufacture" XP002141315 & JP 04 280815 A (SANYO COLOR WORKS, LTD., JAPAN) 6 October 1992 (1992-10-06)
  • PATENT ABSTRACTS OF JAPAN vol. 005, no. 062 (C-052), 25 April 1981 (1981-04-25) & JP 56 014535 A (TOSHIBA CORP), 12 February 1981 (1981-02-12)
  • DATABASE WPI Section Ch, Week 199218 Derwent Publications Ltd., London, GB; Class A26, AN 1992-148044 XP002141316 & JP 04 091179 A (UBE IND LTD), 24 March 1992 (1992-03-24)
  • PATENT ABSTRACTS OF JAPAN vol. 017, no. 158 (C-1041), 29 March 1993 (1993-03-29) & JP 04 321517 A (KUBOTA CORP), 11 November 1992 (1992-11-11)
   
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).