(19)
(11) EP 1 437 611 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:
21.03.2012 Bulletin 2012/12

(45) Mention of the grant of the patent:
14.12.2011 Bulletin 2011/50

(21) Application number: 02802002.2

(22) Date of filing: 09.10.2002
(51) International Patent Classification (IPC): 
G02B 6/293(2006.01)
(86) International application number:
PCT/JP2002/010479
(87) International publication number:
WO 2003/036345 (01.05.2003 Gazette 2003/18)

(54)

ARRAY WAVEGUIDE DIFFRACTION GRATING TYPE OPTICAL MULTIPLEXER/BRANCHING FILTER

OPTISCHER MULTIPLEXER/VERZWEIGUNGSFILTER DES ARRAY-WELLENLEITERBEUGUNGSGITTERTYPS

MULTIPLEXEUR OPTIQUE / FILTRE DE DERIVATION DU TYPE A RESEAU DE DIFFRACTION SELECTIF PLANAIRE

(84) Designated Contracting States:
DE GB

(30) Priority: 19.10.2001 JP 2001322449

(43) Date of publication of application:
14.07.2004 Bulletin 2004/29

(73) Proprietors:
  • NTT ELECTRONICS CORPORATION
    Kanagawa 221-0031 (JP)
  • NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Tokyo 100-8116 (JP)

(72) Inventors:
  • HIDA, Yasuhiro, c/o NTT Electronics Corporation
    Yokohama-shi, Kanagawa 221-0031 (JP)
  • INOUE, Yasuyuki, c/o NTT Corporation
    Tokyo 100-8116 (JP)
  • KOMINATO, Toshiumi, c/o NTT Corporation
    Tokyo 100-8116 (JP)

(74) Representative: Prinz & Partner 
Patentanwälte Rundfunkplatz 2
80335 München
80335 München (DE)


(56) References cited: : 
EP-A- 0 947 860
JP-A- 4 241 304
JP-A- 2000 292 634
 EP-A2- 1 219 983
JP-A- 5 157 920
JP-A- 2002 006 157
   
  • PATENT ABSTRACTS OF JAPAN vol. 2000, no. 13, 5 February 2001 (2001-02-05) -& JP 2000 292634 A (SUMITOMO ELECTRIC IND LTD), 20 October 2000 (2000-10-20)
  • HIROSHI TAKAHASHI ET AL: "POLARIZATION-INSENSITIVE ARRAYED-WAVEGUIDE GRATING WAVELENGTH MULTIPLEXER ON SILICON" OPTICS LETTERS, OSA, OPTICAL SOCIETY OF AMERICA, WASHINGTON, DC, US, vol. 17, no. 7, 1 April 1992 (1992-04-01), pages 499-501, XP000262595 ISSN: 0146-9592
  • WILDERMUTH E. ET AL. ELECTRONICS LETTERS vol. 34, no. 17, 20 August 1998, pages 1661 - 1663, XP002166386
  • ABE M. ET AL. THE 4TH MICRO OPTICS CONFERENCE AND THE 11TH TOPICAL MEETING ON GRADIENT-INDEX OPTICAL SYSTEMS (MOC/GRIN'93) TECHNICAL DIGEST 20 October 1993 - 22 October 1993, pages 66 - 69, XP002964316
  • SUZUKI S. ET AL. ELECTRONICS LETTERS vol. 33, no. 13, 19 June 1997, pages 1173 - 1174, XP006007651
  • INOUE Y. ET AL. OPTICAL FIBER COMMUNICATION CONFERENCE AND EXHIBIT 2001 (OFC 2001) vol. 3, 17 March 2001 - 22 March 2001, page WB4-1, 4-3, XP001076361
   
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).