[go: up one dir, main page]

GB2222181B - Improvements relating to optical data storage disks - Google Patents

Improvements relating to optical data storage disks

Info

Publication number
GB2222181B
GB2222181B GB8914698A GB8914698A GB2222181B GB 2222181 B GB2222181 B GB 2222181B GB 8914698 A GB8914698 A GB 8914698A GB 8914698 A GB8914698 A GB 8914698A GB 2222181 B GB2222181 B GB 2222181B
Authority
GB
United Kingdom
Prior art keywords
data storage
optical data
improvements relating
storage disks
disks
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
Application number
GB8914698A
Other versions
GB8914698D0 (en
GB2222181A (en
Inventor
Robert James Longman
Peter Roy Helfet
Philip Adrian Storey
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.)
Plasmon Data Systems Inc
Original Assignee
Plasmon Data Systems 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 Plasmon Data Systems Inc filed Critical Plasmon Data Systems Inc
Publication of GB8914698D0 publication Critical patent/GB8914698D0/en
Publication of GB2222181A publication Critical patent/GB2222181A/en
Application granted granted Critical
Publication of GB2222181B publication Critical patent/GB2222181B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/20—Metallic material, boron or silicon on organic substrates
    • 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
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • 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
    • 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
    • G11B7/252—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
    • G11B7/2548—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 inorganic materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
GB8914698A 1988-06-27 1989-06-27 Improvements relating to optical data storage disks Expired - Fee Related GB2222181B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8815235A GB8815235D0 (en) 1988-06-27 1988-06-27 Improvements relating to optical data storage disks

Publications (3)

Publication Number Publication Date
GB8914698D0 GB8914698D0 (en) 1989-08-16
GB2222181A GB2222181A (en) 1990-02-28
GB2222181B true GB2222181B (en) 1993-01-06

Family

ID=10639418

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8815235A Pending GB8815235D0 (en) 1988-06-27 1988-06-27 Improvements relating to optical data storage disks
GB8914698A Expired - Fee Related GB2222181B (en) 1988-06-27 1989-06-27 Improvements relating to optical data storage disks

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB8815235A Pending GB8815235D0 (en) 1988-06-27 1988-06-27 Improvements relating to optical data storage disks

Country Status (1)

Country Link
GB (2) GB8815235D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0778357A (en) * 1993-09-08 1995-03-20 Sony Corp Optical information medium

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1331491A (en) * 1969-06-06 1973-09-26 Chase Manhattan Capital Corp Laser recording
GB2005457A (en) * 1977-09-29 1979-04-19 Philips Nv Optically written information recording element
GB1547009A (en) * 1976-11-15 1979-06-06 Ibm Magnetic recording medium
EP0026496A1 (en) * 1979-10-01 1981-04-08 Xebec Magnetic recording disc and method for forming a protective overcoating thereon
EP0084729A1 (en) * 1981-12-22 1983-08-03 Fujitsu Limited Recording elements
US4451915A (en) * 1982-04-15 1984-05-29 Burroughs Corporation Optical storage system employing a multi-layer optical medium
EP0135370A1 (en) * 1983-08-19 1985-03-27 Hitachi, Ltd. Information recording member
US4525412A (en) * 1982-11-15 1985-06-25 Sony Corporation Information recording medium
EP0163397A1 (en) * 1984-04-16 1985-12-04 EASTMAN KODAK COMPANY (a New Jersey corporation) Erasable, reusable optical recording elements and methods for erasing such elements
EP0186467A2 (en) * 1984-12-28 1986-07-02 Pioneer Electronic Corporation Optical data recording medium and method
US4719170A (en) * 1985-03-02 1988-01-12 Basf Aktiengesellshaft Optical recording material
US4751309A (en) * 1985-09-21 1988-06-14 Basf Aktiengesellschaft Methine dyes and preparation thereof

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1331491A (en) * 1969-06-06 1973-09-26 Chase Manhattan Capital Corp Laser recording
GB1547009A (en) * 1976-11-15 1979-06-06 Ibm Magnetic recording medium
GB2005457A (en) * 1977-09-29 1979-04-19 Philips Nv Optically written information recording element
EP0026496A1 (en) * 1979-10-01 1981-04-08 Xebec Magnetic recording disc and method for forming a protective overcoating thereon
EP0084729A1 (en) * 1981-12-22 1983-08-03 Fujitsu Limited Recording elements
US4451915A (en) * 1982-04-15 1984-05-29 Burroughs Corporation Optical storage system employing a multi-layer optical medium
US4525412A (en) * 1982-11-15 1985-06-25 Sony Corporation Information recording medium
EP0135370A1 (en) * 1983-08-19 1985-03-27 Hitachi, Ltd. Information recording member
EP0163397A1 (en) * 1984-04-16 1985-12-04 EASTMAN KODAK COMPANY (a New Jersey corporation) Erasable, reusable optical recording elements and methods for erasing such elements
EP0186467A2 (en) * 1984-12-28 1986-07-02 Pioneer Electronic Corporation Optical data recording medium and method
US4719170A (en) * 1985-03-02 1988-01-12 Basf Aktiengesellshaft Optical recording material
US4751309A (en) * 1985-09-21 1988-06-14 Basf Aktiengesellschaft Methine dyes and preparation thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
H. Zollinger "Color Chemistry", pub. 1987, VCH Verlagsgesellschaft, pages 296-298 *

Also Published As

Publication number Publication date
GB8914698D0 (en) 1989-08-16
GB2222181A (en) 1990-02-28
GB8815235D0 (en) 1988-08-03

Similar Documents

Publication Publication Date Title
GB2193338B (en) Reversible optical data storage
AU574855B2 (en) Optical data storage device
FI893563A7 (en) Optical data storage medium
KR960005451B1 (en) Optical recording medium
FI893561A7 (en) Optical data storage
EP0321704A3 (en) Optical recording medium
NZ222836A (en) Reproducing optical disk via holographic intermediate
EP0418879A3 (en) Recording/reproducing system using optical storage medium
EP0352068A3 (en) Optical data recording medium
EP0376231A3 (en) Optical recording media
EP0240696A3 (en) Optical storage medium
GB8714202D0 (en) Contrast enthancement in optical data storage
GB8724746D0 (en) Optical storage medium
EP0310344A3 (en) Optical recording medium
EP0307081A3 (en) Recording medium for optical data storage
EP0333205A3 (en) Optical recording medium
EP0346726A3 (en) Optical recording medium
EP0373539A3 (en) Optical recording medium
EP0294969A3 (en) Recording medium for optical data storage
EP0356064A3 (en) Information storage disk
GB2222181B (en) Improvements relating to optical data storage disks
GB8712687D0 (en) Optical data storage
EP0329304A3 (en) Optical recording
GB8609027D0 (en) Optical data storage disks
JPS6439645A (en) Optical recording medium

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930627