(19)
(11) EP 1 808 854 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:
27.06.2012 Bulletin 2012/26

(45) Mention of the grant of the patent:
11.04.2012 Bulletin 2012/15

(21) Application number: 07007772.2

(22) Date of filing: 18.10.2002
(51) International Patent Classification (IPC): 
G11B 7/006(2006.01)
G11B 7/0045(2006.01)
 G11B 7/125(2012.01)

(54)

Light source driving unit and optical storage apparatus

Lichtquellenansteuereinheit und optische Speichervorrichtung

Unité de commande de source lumineuse et appareil de stockage optique

(84) Designated Contracting States:
DE FR GB

(30) Priority: 22.10.2001 JP 2001323544
22.10.2001 JP 2001323582
31.10.2001 JP 2001334257
31.10.2001 JP 2001334282
31.10.2001 JP 2001334303
26.04.2002 JP 2002126941

(43) Date of publication of application:
18.07.2007 Bulletin 2007/29

(62) Application number of the earlier application in accordance with Art. 76 EPC:
02257244.0 / 1304686

(73) Proprietor: Ricoh Company, Ltd.
Tokyo 143-8555 (JP)

(72) Inventors:
  • Masui, Naruhiro
    Yokohama-shi Kanagawa 221-0005 (JP)
  • Ema, Hidetoshi
    Yokohama-shi Kanagawa 224-0007 (JP)

(74) Representative: Mounteney, Simon James 
Marks & Clerk LLP 90 Long Acre
London WC2E 9RA
London WC2E 9RA (GB)


(56) References cited: : 
EP-A- 0 957 475
 US-A- 5 438 581
   
  • PATENT ABSTRACTS OF JAPAN vol. 2000, no. 13, 5 February 2001 (2001-02-05) & JP 2000 276736 A (MATSUSHITA ELECTRIC IND CO LTD), 6 October 2000 (2000-10-06)
   
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).