DE69022497T2 - Optisches Aufzeichnungsmedium. - Google Patents
Optisches Aufzeichnungsmedium.Info
- Publication number
- DE69022497T2 DE69022497T2 DE1990622497 DE69022497T DE69022497T2 DE 69022497 T2 DE69022497 T2 DE 69022497T2 DE 1990622497 DE1990622497 DE 1990622497 DE 69022497 T DE69022497 T DE 69022497T DE 69022497 T2 DE69022497 T2 DE 69022497T2
- Authority
- DE
- Germany
- Prior art keywords
- recording medium
- optical recording
- optical
- medium
- recording
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
- G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised 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
- G11B7/252—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
- G11B7/258—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 reflective 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
- 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
- G11B7/252—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]
-
- 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
- G11B7/258—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 reflective layers
- G11B7/2585—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 reflective layers based on aluminium
-
- 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
- G11B7/258—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 reflective layers
- G11B7/259—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 reflective layers based on silver
-
- 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
- G11B7/258—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 reflective layers
- G11B7/2595—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 reflective layers based on gold
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/913—Material designed to be responsive to temperature, light, moisture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/146—Laser beam
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17119189 | 1989-07-04 | ||
JP20489189 | 1989-08-09 | ||
JP1279893A JPH03142728A (ja) | 1989-10-30 | 1989-10-30 | 光記録媒体 |
JP2029431A JP2541677B2 (ja) | 1989-08-09 | 1990-02-13 | 光記録媒体 |
JP2029432A JP2559871B2 (ja) | 1989-07-04 | 1990-02-13 | 光記録媒体 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69022497D1 DE69022497D1 (de) | 1995-10-26 |
DE69022497T2 true DE69022497T2 (de) | 1996-05-15 |
Family
ID=27521139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1990622497 Expired - Fee Related DE69022497T2 (de) | 1989-07-04 | 1990-06-02 | Optisches Aufzeichnungsmedium. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5093174A (de) |
EP (1) | EP0406569B1 (de) |
CA (1) | CA2017284C (de) |
DE (1) | DE69022497T2 (de) |
Families Citing this family (70)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5256518A (en) * | 1988-08-19 | 1993-10-26 | Matsushita Electric Industrial Co., Ltd. | Information storage disk employing a reflective layer having good malleability |
JPH03168943A (ja) * | 1989-11-29 | 1991-07-22 | Hitachi Ltd | 光メモリ及び情報処理装置 |
JP2804130B2 (ja) * | 1989-12-06 | 1998-09-24 | 株式会社日立製作所 | 情報処理装置 |
CA2038785C (en) * | 1990-03-27 | 1998-09-29 | Atsushi Oyamatsu | Magneto-optical recording medium |
DE69112168T2 (de) * | 1990-10-26 | 1996-03-21 | Teijin Ltd | Magnetooptisches Aufzeichnungsmedium. |
EP0498657A3 (en) * | 1991-02-08 | 1993-03-03 | Canon Kabushiki Kaisha | Optical recording medium, method of reproducing recorded data of optical recording medium, and system for reproducing recorded data of optical recording medium |
ATE127165T1 (de) * | 1991-04-05 | 1995-09-15 | Balzers Hochvakuum | Verfahren zur beschichtung eines werkstückes aus kunststoff mit einer metallschicht. |
JPH04335231A (ja) * | 1991-05-10 | 1992-11-24 | Nec Corp | 光磁気記録用単板光ディスク |
US5485452A (en) * | 1991-06-28 | 1996-01-16 | Pioneer Electronic Corporation | Optical information recording medium |
JP3029485B2 (ja) * | 1991-07-22 | 2000-04-04 | キヤノン株式会社 | 光磁気記録媒体 |
DE4223850A1 (de) * | 1991-07-23 | 1993-01-28 | Mitsubishi Chem Ind | Magnetooptisches aufzeichnungsmedium |
JPH0516751U (ja) * | 1991-08-23 | 1993-03-02 | 株式会社日本アレフ | 放電破壊式プリンタのカード搬送用ローラ機構 |
EP0531808B1 (de) * | 1991-09-09 | 1997-02-05 | Shin-Etsu Chemical Co., Ltd. | Magneto-optisches Aufzeichnungsmedium |
DE4137427C1 (de) * | 1991-11-14 | 1993-01-14 | Hoechst Ag, 6230 Frankfurt, De | |
US5202880A (en) * | 1992-03-06 | 1993-04-13 | Digital Equipment Corporation | Double-sided magneto-optical media for a multi-disk storage device |
US5470627A (en) * | 1992-03-06 | 1995-11-28 | Quantum Corporation | Double-sided optical media for a disk storage device |
JP2817505B2 (ja) * | 1992-03-30 | 1998-10-30 | 日本電気株式会社 | 光磁気記録用単板光ディスクとその記録再生方法 |
DE69317459T2 (de) * | 1992-04-17 | 1998-08-27 | Matsushita Electric Ind Co Ltd | Optisches Informationsaufzeichnungsmedium und Verfahren zum Entwurf seiner Struktur |
JP2709887B2 (ja) * | 1992-06-12 | 1998-02-04 | ティーディーケイ株式会社 | 光記録媒体およびその製造方法 |
JP3199486B2 (ja) * | 1992-06-30 | 2001-08-20 | ティーディーケイ株式会社 | 光記録ディスク |
EP0598377B1 (de) * | 1992-11-17 | 1999-09-22 | Mitsubishi Chemical Corporation | Magnetooptischer Aufzeichnungträger und Verfahren zur Aufzeichnung und Wiedergabe von optischer Information |
JP2850754B2 (ja) * | 1994-05-20 | 1999-01-27 | 日本電気株式会社 | 相変化型光ディスク |
US5458941A (en) * | 1994-06-09 | 1995-10-17 | Minnesota Mining And Manufacturing Company | Optical recording medium exhibiting eutectic phase equilbria |
DE69500790T2 (de) * | 1994-05-26 | 1998-04-09 | Teijin Ltd | Optisches Aufzeichnungsmedium |
US5540966A (en) * | 1994-08-05 | 1996-07-30 | Minnesota Mining And Manufacturing Company | Dual layer optical medium having partially reflecting thin film layer |
US5578517A (en) * | 1994-10-24 | 1996-11-26 | Taiwan Semiconductor Manufacturing Company Ltd. | Method of forming a highly transparent silicon rich nitride protective layer for a fuse window |
KR960015450A (ko) * | 1994-10-31 | 1996-05-22 | 배순훈 | 다층 광 디스크 |
US5764619A (en) | 1995-04-07 | 1998-06-09 | Matsushita Electric Industrial Co., Ltd. | Optical recording medium having two separate recording layers |
US5804017A (en) * | 1995-07-27 | 1998-09-08 | Imation Corp. | Method and apparatus for making an optical information record |
KR0183938B1 (ko) | 1995-10-28 | 1999-04-15 | 삼성전자주식회사 | 비정질 경희토류-천이금속과 반금속의 합금,이로부터 형성되는 광자기 기록막 및 이 기록막을 채용한 광자기 디스크 |
US5640382A (en) * | 1995-12-19 | 1997-06-17 | Imation Corp. | Dual layer optical medium having partially reflecting metal alloy layer |
US6628603B1 (en) | 1997-03-27 | 2003-09-30 | Imation Corp. | Dual layer optical storage medium having partially reflecting layer comprising antimony sulfide |
DE69837168T2 (de) * | 1997-03-27 | 2007-10-31 | Mitsubishi Kagaku Media Co. Ltd. | Optisches Informationsaufzeichnungsmedium |
US6678237B1 (en) | 1997-03-27 | 2004-01-13 | Imation Corp. | Dual layer optical storage medium having partially reflecting layer comprising amorphous selenium |
US6254809B1 (en) | 1998-05-19 | 2001-07-03 | Steag Hamatech, Inc. | System and method for curing a resin disposed between a top and bottom substrate with thermal management |
US6103039A (en) | 1997-11-12 | 2000-08-15 | First Light Technology, Inc. | System and method for thermally manipulating a combination of a top and bottom substrate before a curing operation |
US6098272A (en) * | 1998-05-19 | 2000-08-08 | First Light Technology, Inc. | System for maintaining concentricity of a combination of a top and bottom substrate during the assembly of a bonded storage disk |
US6214412B1 (en) | 1998-05-19 | 2001-04-10 | First Light Technologies, Inc. | System and method for distributing a resin disposed between a top substrate and a bottom substrate |
US6106657A (en) * | 1998-05-19 | 2000-08-22 | First Light Technology, Inc. | System and method for dispensing a resin between substrates of a bonded storage disk |
US6352612B1 (en) | 1998-05-19 | 2002-03-05 | Steag Hamatech, Inc. | System for forming bonded storage disks with low power light assembly |
US6007889A (en) * | 1998-06-22 | 1999-12-28 | Target Technology, Llc | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium |
US7384677B2 (en) | 1998-06-22 | 2008-06-10 | Target Technology Company, Llc | Metal alloys for the reflective or semi-reflective layer of an optical storage medium |
US7314657B2 (en) * | 2000-07-21 | 2008-01-01 | Target Technology Company, Llc | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium |
US6544616B2 (en) | 2000-07-21 | 2003-04-08 | Target Technology Company, Llc | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium |
US6852384B2 (en) * | 1998-06-22 | 2005-02-08 | Han H. Nee | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium |
US7045187B2 (en) * | 1998-06-22 | 2006-05-16 | Nee Han H | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium |
US6790503B2 (en) * | 1998-06-22 | 2004-09-14 | Target Technology Company, Llc | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium |
US6764735B2 (en) | 1998-06-22 | 2004-07-20 | Target Technology Company, Llc | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium |
US6451402B1 (en) | 1998-06-22 | 2002-09-17 | Target Technology Company, Llc | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium |
US6905750B2 (en) * | 1998-06-22 | 2005-06-14 | Target Technology Company, Llc | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium |
US6351446B1 (en) | 1998-10-02 | 2002-02-26 | Unaxis Balzers Aktiengesellschaft | Optical data storage disk |
DE59907819D1 (de) * | 1998-10-02 | 2003-12-24 | Unaxis Balzers Ag | Optische datenspeicherscheibe |
WO2000048172A2 (en) | 1999-02-12 | 2000-08-17 | General Electric Company | Data storage media |
US6292457B1 (en) * | 1999-03-31 | 2001-09-18 | Eastman Kodak Company | Recordable optical media with a silver-gold reflective layer |
US7374805B2 (en) * | 2000-07-21 | 2008-05-20 | Target Technology Company, Llc | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium |
US7314659B2 (en) * | 2000-07-21 | 2008-01-01 | Target Technology Company, Llc | Metal alloys for the reflective or semi-reflective layer of an optical storage medium |
US7316837B2 (en) * | 2000-07-21 | 2008-01-08 | Target Technology Company, Llc | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium |
US7149173B2 (en) * | 2000-10-17 | 2006-12-12 | Thales | Medium for recording optically readable data, method for making same and optical system reproducing said data |
ATE420219T1 (de) * | 2001-03-16 | 2009-01-15 | Ishifuku Metal Ind | Optisches plattenmedium, reflektierende stn- flüssigkristallanzeige und organische el-anzeige |
KR20030090761A (ko) * | 2001-04-19 | 2003-11-28 | 제너럴 일렉트릭 캄파니 | 회전 피복된 매체 |
US7022384B2 (en) * | 2002-01-25 | 2006-04-04 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Reflective film, reflection type liquid crystal display, and sputtering target for forming the reflective film |
US20030147329A1 (en) * | 2002-02-07 | 2003-08-07 | Burks David Patrick | Optical medium, method, and means of self-destructive optical data |
US7572517B2 (en) * | 2002-07-08 | 2009-08-11 | Target Technology Company, Llc | Reflective or semi-reflective metal alloy coatings |
WO2004006228A2 (en) * | 2002-07-08 | 2004-01-15 | Academy Corporation | Reflective or semi-reflective metal alloy coatings |
JP2005532656A (ja) * | 2002-07-10 | 2005-10-27 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 光記録及び読出しシステム、光データ記憶媒体、及び前記媒体の使用 |
TWI368819B (en) * | 2003-04-18 | 2012-07-21 | Target Technology Co Llc | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium |
US20050238145A1 (en) * | 2004-04-22 | 2005-10-27 | Sbc Knowledge Ventures, L.P. | User interface for "how to use" application of automated self service call center |
US20070014963A1 (en) * | 2005-07-12 | 2007-01-18 | Nee Han H | Metal alloys for the reflective layer of an optical storage medium |
US8158234B2 (en) * | 2006-01-18 | 2012-04-17 | Mitsubishi Kagaku Media Co., Ltd. | Optical recording medium |
US7445976B2 (en) * | 2006-05-26 | 2008-11-04 | Freescale Semiconductor, Inc. | Method of forming a semiconductor device having an interlayer and structure therefor |
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JPS5231703A (en) * | 1975-09-05 | 1977-03-10 | Kokusai Denshin Denwa Co Ltd <Kdd> | Magnetic thin film recording medium |
JPS6032331B2 (ja) * | 1980-03-12 | 1985-07-27 | ケイディディ株式会社 | 磁気光学記録媒体 |
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JPS57189894A (en) * | 1981-05-20 | 1982-11-22 | Fuji Photo Film Co Ltd | Thermal recording material |
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JPS59171054A (ja) * | 1983-03-17 | 1984-09-27 | Sharp Corp | 磁気光学記憶素子 |
EP0509555B1 (de) * | 1982-12-15 | 1995-07-26 | Sharp Kabushiki Kaisha | Magneto-optischer Speicher |
US4556893A (en) * | 1983-02-15 | 1985-12-03 | Minnesota Mining And Manufacturing Company | Optical recording medium of high sensitivity |
JPS59132434A (ja) * | 1983-12-12 | 1984-07-30 | Sharp Corp | 磁気光学記憶素子 |
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JPS6157053A (ja) * | 1984-08-28 | 1986-03-22 | Canon Inc | 光学的記録媒体 |
JP2594030B2 (ja) * | 1985-01-16 | 1997-03-26 | セイコーエプソン株式会社 | 光磁気記録媒体 |
JPH0619856B2 (ja) * | 1984-11-09 | 1994-03-16 | 株式会社日立製作所 | 情報記録媒体 |
EP0193334B1 (de) * | 1985-02-18 | 1993-01-13 | Dai Nippon Insatsu Kabushiki Kaisha | Optische Karten und Verfahren zu ihrer Herstellung |
JPH0697514B2 (ja) * | 1985-02-21 | 1994-11-30 | シャープ株式会社 | 磁気光学記憶素子 |
US4670345A (en) * | 1985-02-22 | 1987-06-02 | Asahi Kasei Kogyo Kabushiki Kaisha | Information recording medium |
JPS6252744A (ja) * | 1985-08-31 | 1987-03-07 | Nec Home Electronics Ltd | 光磁気記録媒体 |
JPH0719396B2 (ja) * | 1985-12-09 | 1995-03-06 | ソニー株式会社 | 情報記録媒体 |
JPS62239349A (ja) * | 1986-04-09 | 1987-10-20 | Konika Corp | 光磁気記録媒体 |
US4839883A (en) * | 1986-06-30 | 1989-06-13 | Matsushita Electric Ind. Co., Ltd. | Optical information recording medium |
CA1274936A (en) * | 1986-12-25 | 1990-10-02 | Akihiro Watanabe | Random copolymer containing hexagonal imide units, a process for producing the same, and an optical disc substrate made of the random copolymer |
JPS6414938A (en) * | 1987-07-08 | 1989-01-19 | Nec Corp | Forming method of multilayered interconnection |
JP2527762B2 (ja) * | 1987-09-07 | 1996-08-28 | 三菱化学株式会社 | 光磁気記録媒体 |
JPS6486348A (en) * | 1987-09-28 | 1989-03-31 | Mitsubishi Chem Ind | Magneto-optical recording medium |
JPH0792935B2 (ja) * | 1987-09-28 | 1995-10-09 | 三菱化学株式会社 | 光磁気記録媒体 |
-
1990
- 1990-05-22 CA CA 2017284 patent/CA2017284C/en not_active Expired - Fee Related
- 1990-05-25 US US07/528,981 patent/US5093174A/en not_active Expired - Lifetime
- 1990-06-02 DE DE1990622497 patent/DE69022497T2/de not_active Expired - Fee Related
- 1990-06-02 EP EP19900110529 patent/EP0406569B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0406569B1 (de) | 1995-09-20 |
CA2017284A1 (en) | 1991-01-04 |
US5093174A (en) | 1992-03-03 |
EP0406569A2 (de) | 1991-01-09 |
DE69022497D1 (de) | 1995-10-26 |
EP0406569A3 (en) | 1993-01-13 |
CA2017284C (en) | 1995-10-03 |
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