EP1194284A4 - Optical recording media having increased erasability - Google Patents

Optical recording media having increased erasability

Info

Publication number: EP1194284A4
Authority: EP; European Patent Office
Prior art keywords: erasability; increased; optical recording; recording media; media
Prior art date: 1999-04-22
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn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.)

1999-04-22

Filing date

1999-04-22

Publication date

2002-10-31

1999-04-22 Application filed by Energy Conversion Devices Inc filed Critical Energy Conversion Devices Inc

2002-04-10 Publication of EP1194284A1 publication Critical patent/EP1194284A1/en

2002-10-31 Publication of EP1194284A4 publication Critical patent/EP1194284A4/en

Status Withdrawn legal-status Critical Current

Links

Classifications

- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record 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
- G11B7/243—Record 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
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record 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
- G11B7/243—Record 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
- G11B7/2433—Metals or elements of groups 13, 14, 15 or 16 of the Periodic System, e.g. B, Si, Ge, As, Sb, Bi, Se or Te
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0055—Erasing
- G11B7/00557—Erasing involving phase-change media
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record 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
- G11B7/243—Record 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
- G11B2007/24302—Metals or metalloids
- G11B2007/24306—Metals or metalloids transition metal elements of groups 3-10
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record 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
- G11B7/243—Record 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
- G11B2007/24302—Metals or metalloids
- G11B2007/24312—Metals or metalloids group 14 elements (e.g. Si, Ge, Sn)
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record 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
- G11B7/243—Record 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
- G11B2007/24302—Metals or metalloids
- G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record 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
- G11B7/243—Record 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
- G11B2007/24302—Metals or metalloids
- G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record 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
- G11B7/253—Record 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
- G11B7/2533—Record 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
- G11B7/2534—Record 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)

Applications Claiming Priority (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 (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2004521433A (en) *	2000-12-22	2004-07-15	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	Recording method to storage element
WO2003021589A1 (en) *	2001-09-01	2003-03-13	Energy Conversion Devices, Inc.	Increased data storage in optical data storage and retrieval systems using blue lasers 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

1999
- 1999-04-22 EP EP19990918793 patent/EP1194284A4/en not_active Withdrawn
- 1999-04-22 KR KR1020017013317A patent/KR20020000630A/en not_active Application Discontinuation
- 1999-04-22 CA CA002370836A patent/CA2370836A1/en not_active Abandoned
- 1999-04-22 AU AU36623/99A patent/AU3662399A/en not_active Abandoned
- 1999-04-22 JP JP2000613640A patent/JP2002542085A/en active Pending
- 1999-04-22 WO PCT/US1999/008861 patent/WO2000064666A1/en not_active Application Discontinuation

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

Legal Events

Date	Code	Title	Description
2002-02-22	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2002-04-10	17P	Request for examination filed	Effective date: 20011024
2002-04-10	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): DE FR GB
2002-10-31	A4	Supplementary search report drawn up and despatched
2002-10-31	AK	Designated contracting states	Kind code of ref document: A4 Designated state(s): DE FR GB
2002-12-18	A4	Supplementary search report drawn up and despatched	Effective date: 20021031
2002-12-18	RIC1	Information provided on ipc code assigned before grant	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 -
2003-09-17	17Q	First examination report despatched	Effective date: 20030731
2004-04-30	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
2004-06-16	18D	Application deemed to be withdrawn	Effective date: 20031211

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