EP1194284A4 - Optical recording media having increased erasability - Google Patents

Optical recording media having increased erasability

Info

Publication number
EP1194284A4
EP1194284A4 EP19990918793 EP99918793A EP1194284A4 EP 1194284 A4 EP1194284 A4 EP 1194284A4 EP 19990918793 EP19990918793 EP 19990918793 EP 99918793 A EP99918793 A EP 99918793A EP 1194284 A4 EP1194284 A4 EP 1194284A4
Authority
EP
European Patent Office
Prior art keywords
erasability
increased
optical recording
recording media
media
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19990918793
Other languages
German (de)
French (fr)
Other versions
EP1194284A1 (en
Inventor
Stanford R Ovshinsky
David A Strand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Energy Conversion Devices Inc
Original Assignee
Energy Conversion Devices Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Energy Conversion Devices Inc filed Critical Energy Conversion Devices Inc
Priority to PCT/US1999/008861 priority Critical patent/WO2000064666A1/en
Publication of EP1194284A1 publication Critical patent/EP1194284A1/en
Publication of EP1194284A4 publication Critical patent/EP1194284A4/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0055Erasing
    • G11B7/00557Erasing involving phase-change media
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302Metals or metalloids
    • G11B2007/24306Metals or metalloids transition metal elements of groups 3-10
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302Metals or metalloids
    • G11B2007/24312Metals or metalloids group 14 elements (e.g. Si, Ge, Sn)
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302Metals or metalloids
    • G11B2007/24314Metals or metalloids group 15 elements (e.g. Sb, Bi)
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302Metals or metalloids
    • G11B2007/24316Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
    • G11B7/2534Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins polycarbonates [PC]
EP19990918793 1999-04-22 1999-04-22 Optical recording media having increased erasability Withdrawn EP1194284A4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US1999/008861 WO2000064666A1 (en) 1999-04-22 1999-04-22 Optical recording media having increased erasability

Publications (2)

Publication Number Publication Date
EP1194284A1 EP1194284A1 (en) 2002-04-10
EP1194284A4 true EP1194284A4 (en) 2002-10-31

Family

ID=22272614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990918793 Withdrawn EP1194284A4 (en) 1999-04-22 1999-04-22 Optical recording media having increased erasability

Country Status (6)

Country Link
EP (1) EP1194284A4 (en)
JP (1) JP2002542085A (en)
KR (1) KR20020000630A (en)
AU (1) AU3662399A (en)
CA (1) CA2370836A1 (en)
WO (1) WO2000064666A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4214055B2 (en) * 2001-09-01 2009-01-28 エナージー コンバーション デバイセス インコーポレイテッドEnergy Conversion Devices, Inc. Increased data storage in an optical data storage and retrieval system using a blue laser and / or plasmon lenses

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866672A (en) * 1985-08-09 1989-09-12 Hitachi, Ltd. Information-recording thin film and method for recording and reproducing information
EP0335469A2 (en) * 1988-03-28 1989-10-04 Hitachi, Ltd. Information-recording thin film and method for recording and reproducing information
EP0354528A2 (en) * 1988-08-09 1990-02-14 EASTMAN KODAK COMPANY (a New Jersey corporation) Optical recording materials comprising antimony-tin alloys including a third element
JPH0361082A (en) * 1989-07-31 1991-03-15 Toshiba Corp Information recording medium
US5298305A (en) * 1992-01-08 1994-03-29 Ricoh Company, Ltd. Phase-change type information recording medium
EP0735158A2 (en) * 1995-03-31 1996-10-02 Ricoh Company, Ltd Sputtering target and its use in the production of an optical recording medium
JPH10337955A (en) * 1997-06-06 1998-12-22 Asahi Chem Ind Co Ltd Phase change type optical information recording medium and its manufacture

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5591501A (en) * 1995-12-20 1997-01-07 Energy Conversion Devices, Inc. Optical recording medium having a plurality of discrete phase change data recording points
TW414892B (en) * 1996-05-28 2000-12-11 Ibm Optical data storage system with multiple rewriteable phase-change recording layers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866672A (en) * 1985-08-09 1989-09-12 Hitachi, Ltd. Information-recording thin film and method for recording and reproducing information
EP0335469A2 (en) * 1988-03-28 1989-10-04 Hitachi, Ltd. Information-recording thin film and method for recording and reproducing information
EP0354528A2 (en) * 1988-08-09 1990-02-14 EASTMAN KODAK COMPANY (a New Jersey corporation) Optical recording materials comprising antimony-tin alloys including a third element
JPH0361082A (en) * 1989-07-31 1991-03-15 Toshiba Corp Information recording medium
US5298305A (en) * 1992-01-08 1994-03-29 Ricoh Company, Ltd. Phase-change type information recording medium
EP0735158A2 (en) * 1995-03-31 1996-10-02 Ricoh Company, Ltd Sputtering target and its use in the production of an optical recording medium
JPH10337955A (en) * 1997-06-06 1998-12-22 Asahi Chem Ind Co Ltd Phase change type optical information recording medium and its manufacture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0064666A1 *

Also Published As

Publication number Publication date
EP1194284A1 (en) 2002-04-10
CA2370836A1 (en) 2000-11-02
JP2002542085A (en) 2002-12-10
AU3662399A (en) 2000-11-10
WO2000064666A1 (en) 2000-11-02
KR20020000630A (en) 2002-01-05

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Free format text: 7G 11B 7/24 A, 7G 11B 7/00 B, 7G 11B 17/04 B, 7G 11B 33/02 B, 7C 22C 12/00 -

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