EP 1194284 A4 20021031 - OPTICAL RECORDING MEDIA HAVING INCREASED ERASABILITY
Title (en)
OPTICAL RECORDING MEDIA HAVING INCREASED ERASABILITY
Title (de)
OPTISCHES SPEICHERMEDIUM MIT ERHÖHTER LÖSCHBARKEIT
Title (fr)
SUPPORTS D'ENREGISTREMENT OPTIQUE AVEC POSSIBILITES D'EFFACEMENT AMELIOREES
Publication
Application
Priority
US 9908861 W 19990422
Abstract (en)
[origin: WO0064666A1] An optical recording medium comprising one or more recording layers (30). At least one of the recording layers (30) comprising an optical phase-change memory material, the optical phase-change memory material comprising: an optical phase-change alloy; and at least one modifier element, added to the optical phase-change alloy, that increases the erasability of the optical recording medium by at least 3 dB.
IPC 1-7
IPC 8 full level
B41M 5/26 (2006.01); G11B 7/004 (2006.01); G11B 7/0055 (2006.01); G11B 7/24 (2006.01); G11B 7/243 (2006.01); G11B 7/253 (2006.01); G11B 7/2534 (2013.01)
CPC (source: EP KR)
G11B 7/00557 (2013.01 - EP); G11B 7/24 (2013.01 - EP); G11B 7/243 (2013.01 - EP); G11B 7/2433 (2013.01 - KR); G11B 7/2534 (2013.01 - EP); G11B 2007/24306 (2013.01 - EP); G11B 2007/24312 (2013.01 - EP); G11B 2007/24314 (2013.01 - EP); G11B 2007/24316 (2013.01 - EP)
Citation (search report)
- [X] JP H10337955 A 19981222 - ASAHI CHEMICAL IND
- [X] EP 0335469 A2 19891004 - HITACHI LTD [JP], et al
- [X] JP H0361082 A 19910315 - TOSHIBA CORP
- [X] US 4866672 A 19890912 - TERAO MOTOYASU [JP], et al
- [X] US 5298305 A 19940329 - SHINOZUKA MICHIAKI [JP], et al
- [X] EP 0735158 A2 19961002 - RICOH KK [JP]
- [A] EP 0354528 A2 19900214 - EASTMAN KODAK CO [US]
- See references of WO 0064666A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 0064666 A1 20001102; AU 3662399 A 20001110; CA 2370836 A1 20001102; EP 1194284 A1 20020410; EP 1194284 A4 20021031; JP 2002542085 A 20021210; KR 20020000630 A 20020105
DOCDB simple family (application)
US 9908861 W 19990422; AU 3662399 A 19990422; CA 2370836 A 19990422; EP 99918793 A 19990422; JP 2000613640 A 19990422; KR 20017013317 A 20011019