OPTICAL RECORDING MEDIUM, METHOD RECORDING OPTICAL RECORDING MEDIUM, AND RECORDER

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EP 1 575 035 A8

(12)	CORRECTED EUROPEAN PATENT APPLICATION
	published in accordance with Art. 158(3) EPC

(15)	Correction information:
	Corrected version no 1 (W1 A1)

(48)	Corrigendum issued on:
	11.01.2006 Bulletin 2006/02

(43)	Date of publication:
	14.09.2005 Bulletin 2005/37

(21)	Application number: 03778906.2

(22)	Date of filing: 12.12.2003

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International Patent Classification (IPC):

G11B 7/0045^(2000.01)
G11B 7/125^(1985.01)

G11B 7/007^(1985.01)
G11B 7/24^(1968.09)

(86)	International application number:
	PCT/JP2003/015985

(87)	International publication number:
	WO 2004/057585 (08.07.2004 Gazette 2004/28)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
	Designated Extension States:
	AL LT LV MK

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Priority:

20.12.2002 JP 2002370934
01.04.2003 JP 2003098320
28.07.2003 JP 2003202321

(71)	Applicant: MITSUBISHI CHEMICAL CORPORATION
	Tokyo 108-0014 (JP)

(72)	Inventors:
	KUBO, Hideyuki, Mitsubishi Kagaku Media Co., Ltd. Minato-ku, Tokyo 108-0014 (JP) TAKESHIMA, Hideharu, Mitsubishi Kagaku Media Co.,L Minato-ku, Tokyo 108-0014 (JP)

(74)	Representative: HOFFMANN EITLE
	Patent- und Rechtsanwälte Arabellastrasse 4 81925 München 81925 München (DE)

(54)	OPTICAL RECORDING MEDIUM, METHOD RECORDING OPTICAL RECORDING MEDIUM, AND RECORDER

(57) In an optical recording medium having a plurality of recording layers on which information can be recorded by irradiating a laser beam from one side thereof, an optimum recording power to each of the recording layers can be determined. The optical recording medium has a plurality of recording layers on which information can be recorded by irradiating a laser beam from one side thereof, and each of the recording layers has a power calibration area (PCA) (52),(61) for optimizing the intensity of the laser beam.