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JPS5786139A - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
JPS5786139A
JPS5786139A JP56150513A JP15051381A JPS5786139A JP S5786139 A JPS5786139 A JP S5786139A JP 56150513 A JP56150513 A JP 56150513A JP 15051381 A JP15051381 A JP 15051381A JP S5786139 A JPS5786139 A JP S5786139A
Authority
JP
Japan
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.)
Granted
Application number
JP56150513A
Other languages
Japanese (ja)
Other versions
JPH0427614B2 (en
Inventor
Etsutenbaagu Maikeru
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Publication of JPS5786139A publication Critical patent/JPS5786139A/en
Publication of JPH0427614B2 publication Critical patent/JPH0427614B2/ja
Granted 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
    • 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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • 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
    • 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
    • G11B2007/24314—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
    • G11B7/242—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
    • G11B2007/24318—Non-metallic elements
    • G11B2007/24324—Sulfur
    • 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
    • G11B7/257—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/25706—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing transition metal elements (Zn, Fe, Co, Ni, Pt)
    • 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
    • G11B7/257—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/2571—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing group 14 elements except carbon (Si, Ge, Sn, Pb)
    • 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
    • G11B7/257—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/25715—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing oxygen
    • 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
    • G11B7/244—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 organic materials only
    • G11B7/246—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 organic materials only containing dyes
    • 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
    • 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
    • G11B7/257—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B7/2578—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • 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
    • G11B7/2595—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

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Recording Or Reproduction (AREA)
JP56150513A 1980-09-25 1981-09-22 Optical recording medium Granted JPS5786139A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19064680A 1980-09-25 1980-09-25

Publications (2)

Publication Number Publication Date
JPS5786139A true JPS5786139A (en) 1982-05-29
JPH0427614B2 JPH0427614B2 (en) 1992-05-12

Family

ID=22702198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56150513A Granted JPS5786139A (en) 1980-09-25 1981-09-22 Optical recording medium

Country Status (5)

Country Link
JP (1) JPS5786139A (en)
DE (1) DE3137528C2 (en)
FR (1) FR2490858B1 (en)
GB (1) GB2084786B (en)
NL (1) NL8104409A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58187397A (en) * 1982-04-08 1983-11-01 ガオ・ゲゼルシヤフト・フユア・アウトマチオン・ウント・オルガニザチオン・ミツト・ベシユレンクテル・ハフツング Multilayer type identification card and its manufacture
JPS5911552A (en) * 1982-07-09 1984-01-21 Matsushita Electric Ind Co Ltd Recording carrier
JPS5919253A (en) * 1982-07-23 1984-01-31 Sony Corp Information recording medium
JPS59177740A (en) * 1983-03-26 1984-10-08 Pioneer Electronic Corp Disc
JPS601634A (en) * 1983-06-02 1985-01-07 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Optical recording medium
JPS60163245A (en) * 1984-02-06 1985-08-26 Ricoh Co Ltd Optical information recording medium
JPS6190342A (en) * 1984-10-08 1986-05-08 Ricoh Co Ltd Optical information storage medium
JPS6254852A (en) * 1985-09-03 1987-03-10 Canon Inc Optical recording medium

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509891B1 (en) * 1981-07-17 1986-12-05 Thomson Csf OPTICAL RECORDING-READING DEVICE ON PREGRAVED INFORMATION MEDIUM
JPS5862842A (en) * 1981-10-09 1983-04-14 Matsushita Electric Ind Co Ltd Optical recording disc
GB2121227A (en) * 1982-05-11 1983-12-14 Nigel Geoffrey Ley Optical memory recording disc
NL8202229A (en) * 1982-06-02 1984-01-02 Docdata Bv MEDIUM FOR RECORDING OPTICALLY READABLE INFORMATION.
NL8204291A (en) * 1982-11-05 1984-06-01 Philips Nv OPTICAL REGISTRATION ELEMENT.
JPS5990248A (en) * 1982-11-15 1984-05-24 Sony Corp Information recording medium
NL8300960A (en) * 1983-03-17 1984-10-16 Philips Nv OPTICAL REGISTRATION DISC.
GB8309447D0 (en) * 1983-04-07 1983-05-11 Combined Tech Corp Plc Optical data storage
NL8301632A (en) * 1983-05-09 1984-12-03 Philips Nv REGISTRATION HOLDER IN WHICH INFORMATION CAN BE REGISTERED AND READ OUT BY OPTICAL ROAD.
CA1198209A (en) * 1983-11-24 1985-12-17 Northern Telecom Limited Optical disc
CA1241741A (en) * 1984-05-24 1988-09-06 Robert A. Scranton Variable impedance contrast in data storage media
NL8401996A (en) * 1984-06-22 1986-01-16 Docdata Bv FLAT-PERFORMANCE OPTICAL INFORMATION CARRIER.
NL8401995A (en) * 1984-06-22 1986-01-16 Docdata Bv OPTICAL INFORMATION CARRIER WITH MOSAIC STRUCTURE.
NL8500153A (en) * 1985-01-22 1986-08-18 Philips Nv REGISTRATION CARRIER INCLUDING A RELIEF STRUCTURE OF OPTICALLY DETECTABLE SERVOSCORE PARTS AND SECTOR ADDRESSES AND APPARATUS FOR APPLYING THIS STRUCTURE.
US4852077A (en) * 1988-02-05 1989-07-25 Tandy Corporation Optical data storage media with spatially variable energy absorptivity
JPH0378131A (en) * 1989-08-18 1991-04-03 Brother Ind Ltd optical recording medium
JPH04360037A (en) * 1991-06-06 1992-12-14 Pioneer Electron Corp Draw type optical disk
DE69322443T2 (en) * 1992-06-17 1999-08-05 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Optical information recording medium
CN1091291C (en) * 1995-12-01 2002-09-18 三星电子株式会社 Optical recording medium and method based on fabry-perot principle

Citations (24)

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Publication number Priority date Publication date Assignee Title
JPS49113601A (en) * 1973-02-09 1974-10-30
US3968326A (en) * 1973-02-09 1976-07-06 Rca Corporation Trapezoidal smooth grooves for video disc
JPS51131603A (en) * 1975-04-28 1976-11-16 Teletype Corp Multiilayer memory structure for laser recording
JPS5210102A (en) * 1975-07-15 1977-01-26 Canon Inc Recording medium
JPS5271202A (en) * 1975-12-11 1977-06-14 Victor Co Of Japan Ltd Production of original disc of information recording media
JPS5296521A (en) * 1976-02-10 1977-08-13 Victor Co Of Japan Ltd Production of information recording medium master disc
JPS52114306A (en) * 1976-03-19 1977-09-26 Rca Corp Information record
JPS52156605A (en) * 1976-06-18 1977-12-27 Thomson Brandt Data carrier and method of producing same
JPS5342028A (en) * 1976-09-24 1978-04-17 Agfa Gevaert Nv Laser beam recording method
JPS5348528A (en) * 1976-09-24 1978-05-02 Thomson Brandt Information carrier for effecting optical recording and reading and method of manufacturing the same
JPS5372506U (en) * 1976-11-19 1978-06-17
JPS53109601A (en) * 1977-03-04 1978-09-25 Matsushita Electric Ind Co Ltd Optical recording medium
JPS5424603A (en) * 1977-07-27 1979-02-24 Teac Corp Method of producing optical reproducer information recording medium
JPS5438123A (en) * 1977-08-29 1979-03-22 Rca Corp Laser beam recording media
JPS5489605A (en) * 1977-09-29 1979-07-16 Philips Nv Information memory element
JPS54130103A (en) * 1978-03-16 1979-10-09 Philips Nv Device for writing and reading information on recording carrier body and recording carrier body
JPS554793A (en) * 1978-05-24 1980-01-14 Philips Nv Information recording element and producing same
JPS5514504A (en) * 1978-07-14 1980-02-01 Hitachi Ltd Recording component
JPS5586787A (en) * 1978-12-22 1980-06-30 Nec Corp Laser recording film
JPS5587595A (en) * 1978-12-27 1980-07-02 Nec Corp Laser recording film
JPS5597033A (en) * 1979-01-15 1980-07-23 Philips Nv Optical recording element and method of recording optical information
JPS5634154A (en) * 1979-08-27 1981-04-06 Toshiba Corp Optical disc for write-in
JPS5655289A (en) * 1979-08-01 1981-05-15 Philips Nv Layer containing dye of film forming highhmolecular binding agent and information recording element using said layer
JPS5661047A (en) * 1979-10-22 1981-05-26 Nippon Telegr & Teleph Corp <Ntt> Memory medium

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2618773C2 (en) * 1976-04-29 1985-02-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Data carriers
US4176377A (en) * 1977-11-10 1979-11-27 Eastman Kodak Company Video disc configuration

Patent Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49113601A (en) * 1973-02-09 1974-10-30
US3968326A (en) * 1973-02-09 1976-07-06 Rca Corporation Trapezoidal smooth grooves for video disc
JPS51131603A (en) * 1975-04-28 1976-11-16 Teletype Corp Multiilayer memory structure for laser recording
JPS5210102A (en) * 1975-07-15 1977-01-26 Canon Inc Recording medium
JPS5271202A (en) * 1975-12-11 1977-06-14 Victor Co Of Japan Ltd Production of original disc of information recording media
JPS5296521A (en) * 1976-02-10 1977-08-13 Victor Co Of Japan Ltd Production of information recording medium master disc
JPS52114306A (en) * 1976-03-19 1977-09-26 Rca Corp Information record
JPS5484702A (en) * 1976-03-19 1979-07-05 Rca Corp Information record
JPS52156605A (en) * 1976-06-18 1977-12-27 Thomson Brandt Data carrier and method of producing same
JPS5342028A (en) * 1976-09-24 1978-04-17 Agfa Gevaert Nv Laser beam recording method
JPS5348528A (en) * 1976-09-24 1978-05-02 Thomson Brandt Information carrier for effecting optical recording and reading and method of manufacturing the same
JPS5372506U (en) * 1976-11-19 1978-06-17
JPS53109601A (en) * 1977-03-04 1978-09-25 Matsushita Electric Ind Co Ltd Optical recording medium
JPS5424603A (en) * 1977-07-27 1979-02-24 Teac Corp Method of producing optical reproducer information recording medium
JPS5438123A (en) * 1977-08-29 1979-03-22 Rca Corp Laser beam recording media
JPS5489605A (en) * 1977-09-29 1979-07-16 Philips Nv Information memory element
JPS54130103A (en) * 1978-03-16 1979-10-09 Philips Nv Device for writing and reading information on recording carrier body and recording carrier body
JPS554793A (en) * 1978-05-24 1980-01-14 Philips Nv Information recording element and producing same
JPS5514504A (en) * 1978-07-14 1980-02-01 Hitachi Ltd Recording component
JPS5586787A (en) * 1978-12-22 1980-06-30 Nec Corp Laser recording film
JPS5587595A (en) * 1978-12-27 1980-07-02 Nec Corp Laser recording film
JPS5597033A (en) * 1979-01-15 1980-07-23 Philips Nv Optical recording element and method of recording optical information
JPS5655289A (en) * 1979-08-01 1981-05-15 Philips Nv Layer containing dye of film forming highhmolecular binding agent and information recording element using said layer
JPS5634154A (en) * 1979-08-27 1981-04-06 Toshiba Corp Optical disc for write-in
JPS5661047A (en) * 1979-10-22 1981-05-26 Nippon Telegr & Teleph Corp <Ntt> Memory medium

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58187397A (en) * 1982-04-08 1983-11-01 ガオ・ゲゼルシヤフト・フユア・アウトマチオン・ウント・オルガニザチオン・ミツト・ベシユレンクテル・ハフツング Multilayer type identification card and its manufacture
JPS5911552A (en) * 1982-07-09 1984-01-21 Matsushita Electric Ind Co Ltd Recording carrier
JPS5919253A (en) * 1982-07-23 1984-01-31 Sony Corp Information recording medium
JPH0432448B2 (en) * 1982-07-23 1992-05-29
JPS59177740A (en) * 1983-03-26 1984-10-08 Pioneer Electronic Corp Disc
JPS601634A (en) * 1983-06-02 1985-01-07 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Optical recording medium
JPH0370862B2 (en) * 1983-06-02 1991-11-11 Intaanashonaru Bijinesu Mashiinzu Corp
JPS60163245A (en) * 1984-02-06 1985-08-26 Ricoh Co Ltd Optical information recording medium
JPH0626028B2 (en) * 1984-02-06 1994-04-06 株式会社リコー Optical information recording medium
JPS6190342A (en) * 1984-10-08 1986-05-08 Ricoh Co Ltd Optical information storage medium
JPS6254852A (en) * 1985-09-03 1987-03-10 Canon Inc Optical recording medium
JPH0447910B2 (en) * 1985-09-03 1992-08-05 Canon Kk

Also Published As

Publication number Publication date
NL8104409A (en) 1982-04-16
DE3137528A1 (en) 1982-07-01
DE3137528C2 (en) 1986-03-20
JPH0427614B2 (en) 1992-05-12
GB2084786B (en) 1985-03-20
GB2084786A (en) 1982-04-15
FR2490858A1 (en) 1982-03-26
FR2490858B1 (en) 1986-04-04

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