JPS6464147A - Formation of protective film of magnetic recording medium - Google Patents

Formation of protective film of magnetic recording medium

Info

Publication number
JPS6464147A
JPS6464147A JP62221082A JP22108287A JPS6464147A JP S6464147 A JPS6464147 A JP S6464147A JP 62221082 A JP62221082 A JP 62221082A JP 22108287 A JP22108287 A JP 22108287A JP S6464147 A JPS6464147 A JP S6464147A
Authority
JP
Japan
Prior art keywords
ink
pad
protective film
pressurized contact
layer
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.)
Pending
Application number
JP62221082A
Other languages
English (en)
Inventor
Noriyuki Arakawa
Koji Suzuki
Tokihiro Nishihara
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP62221082A priority Critical patent/JPS6464147A/ja
Priority to US07/238,524 priority patent/US4931313A/en
Priority to EP88308122A priority patent/EP0306316B1/en
Priority to AT88308122T priority patent/ATE85721T1/de
Priority to DE8888308122T priority patent/DE3878353T2/de
Publication of JPS6464147A publication Critical patent/JPS6464147A/ja
Pending 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
    • G11B7/252—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
    • G11B7/2572—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 organic materials
    • G11B7/2575—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 organic materials 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
    • G11B7/254—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 protective topcoat layers
    • G11B7/2542—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 protective topcoat layers consisting essentially of organic 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
    • G11B7/242—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
    • G11B2007/2431—Metals or metalloids group 13 elements (B, Al, Ga, In)
    • 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

Landscapes

  • Manufacturing Optical Record Carriers (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
JP62221082A 1987-09-03 1987-09-03 Formation of protective film of magnetic recording medium Pending JPS6464147A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62221082A JPS6464147A (en) 1987-09-03 1987-09-03 Formation of protective film of magnetic recording medium
US07/238,524 US4931313A (en) 1987-09-03 1988-08-31 Method of forming a protective film for an optical recording medium
EP88308122A EP0306316B1 (en) 1987-09-03 1988-09-01 Methods of forming protective films on optical recording media
AT88308122T ATE85721T1 (de) 1987-09-03 1988-09-01 Verfahren zur herstellung von schutzschichten auf optischen aufzeichnungsmedien.
DE8888308122T DE3878353T2 (de) 1987-09-03 1988-09-01 Verfahren zur herstellung von schutzschichten auf optischen aufzeichnungsmedien.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62221082A JPS6464147A (en) 1987-09-03 1987-09-03 Formation of protective film of magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS6464147A true JPS6464147A (en) 1989-03-10

Family

ID=16761206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62221082A Pending JPS6464147A (en) 1987-09-03 1987-09-03 Formation of protective film of magnetic recording medium

Country Status (5)

Country Link
US (1) US4931313A (ja)
EP (1) EP0306316B1 (ja)
JP (1) JPS6464147A (ja)
AT (1) ATE85721T1 (ja)
DE (1) DE3878353T2 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69122896T2 (de) * 1990-02-22 1997-05-15 Sony Corp Optischer Informationsaufzeichnungsträger
US5234717A (en) * 1990-06-14 1993-08-10 Nippon Sheet Glass Co., Ltd. Process for producing a minute-patterned substrate
US5312663A (en) * 1991-12-27 1994-05-17 Eastman Kodak Company Optical element having durability enhancing layer
US5482736A (en) * 1994-08-04 1996-01-09 Amkor Electronics, Inc. Method for applying flux to ball grid array package
WO1997004450A1 (de) * 1995-07-21 1997-02-06 Bod Berlin Optical Disc Gmbh Verfahren zur herstellung einer mittels laserstrahls abtastbaren, informationen aufweisenden scheibe und scheibe auf diese weise hergestellt
US5940362A (en) * 1996-08-19 1999-08-17 Sensormatic Electronics Corporation Disc device having a magnetic layer overweighing the information signal pattern for electronic article surveillance
EP1100081B1 (en) * 1999-05-17 2006-03-22 Sony Corporation Disk-like multilayer information recording medium and production method thereof
US6709267B1 (en) * 2002-12-27 2004-03-23 Asm America, Inc. Substrate holder with deep annular groove to prevent edge heat loss

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2653831C2 (de) * 1976-11-26 1982-09-09 Polygram Gmbh, 2000 Hamburg Plattenförmiger Informationsträger
US4479432A (en) * 1980-05-15 1984-10-30 Toppan Printing Co., Ltd. Thick film printing method
JPS58137146A (ja) * 1982-02-05 1983-08-15 Matsushita Electric Ind Co Ltd 光学式記録再生円盤
DE3425606A1 (de) * 1984-07-12 1985-02-14 Elring Dichtungswerke Gmbh, 7012 Fellbach Verfahren zum aufbringen einer beschichtungsmasse auf eine flachdichtung

Also Published As

Publication number Publication date
EP0306316A3 (en) 1990-09-26
EP0306316B1 (en) 1993-02-10
US4931313A (en) 1990-06-05
EP0306316A2 (en) 1989-03-08
ATE85721T1 (de) 1993-02-15
DE3878353D1 (de) 1993-03-25
DE3878353T2 (de) 1993-07-29

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