GB2004404B - Optical record disc - Google Patents
Optical record discInfo
- Publication number
- GB2004404B GB2004404B GB7836652A GB7836652A GB2004404B GB 2004404 B GB2004404 B GB 2004404B GB 7836652 A GB7836652 A GB 7836652A GB 7836652 A GB7836652 A GB 7836652A GB 2004404 B GB2004404 B GB 2004404B
- Authority
- GB
- United Kingdom
- Prior art keywords
- optical record
- record disc
- disc
- optical
- record
- 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
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
- G11B7/254—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
- G11B7/257—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
-
- 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
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
-
- 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
- G11B2007/25408—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
- G11B2007/25414—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 containing Group 13 elements (B, Al, Ga)
-
- 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
- G11B7/256—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 improving adhesion between 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
- G11B7/258—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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Manufacturing Optical Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7710162A NL7710162A (en) | 1977-09-16 | 1977-09-16 | METHOD FOR MANUFACTURING AN OPTICALLY READABLE INFORMATION DISK USING A FLAT, STIFFENING HEAT CONDUCTIVE PLATE OF INORGANIC MATERIAL |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2004404A GB2004404A (en) | 1979-03-28 |
| GB2004404B true GB2004404B (en) | 1982-01-20 |
Family
ID=19829188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7836652A Expired GB2004404B (en) | 1977-09-16 | 1978-09-13 | Optical record disc |
Country Status (20)
| Country | Link |
|---|---|
| JP (1) | JPS5454003A (en) |
| AR (1) | AR216540A1 (en) |
| AT (1) | AT371278B (en) |
| AU (1) | AU523032B2 (en) |
| BE (1) | BE870476A (en) |
| BR (1) | BR7806005A (en) |
| CA (1) | CA1124396A (en) |
| CH (1) | CH637783A5 (en) |
| DD (1) | DD139774A5 (en) |
| DE (1) | DE2839395A1 (en) |
| DK (1) | DK403478A (en) |
| ES (1) | ES473343A1 (en) |
| FR (1) | FR2403617A1 (en) |
| GB (1) | GB2004404B (en) |
| IT (1) | IT1098622B (en) |
| MX (1) | MX148376A (en) |
| NL (1) | NL7710162A (en) |
| NZ (1) | NZ188406A (en) |
| SE (1) | SE438568B (en) |
| ZA (1) | ZA785080B (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4414650A (en) * | 1980-06-23 | 1983-11-08 | Sharp Kabushiki Kaisha | Magneto-optic memory element |
| DE3028498A1 (en) * | 1980-07-26 | 1982-03-04 | Röhm GmbH, 6100 Darmstadt | IMPROVED, OPTICALLY READED, INFORMATION STORAGE DISKS AND METHOD FOR THEIR PRODUCTION |
| JPS5766538A (en) * | 1980-10-08 | 1982-04-22 | Toshiba Corp | Information storage medium |
| JPS57186241A (en) * | 1981-05-11 | 1982-11-16 | Mitsui Toatsu Chem Inc | Optical information recording disc |
| JPS58108044A (en) * | 1981-12-22 | 1983-06-28 | Pioneer Electronic Corp | Optical disk |
| NL8301956A (en) * | 1983-06-02 | 1985-01-02 | Optical Storage Int | OPTICAL REGISTRATION ELEMENT. |
| DE3322131A1 (en) * | 1983-06-20 | 1984-12-20 | Polygram Gmbh, 2000 Hamburg | DISK-SHAPED, OPTICALLY READABLE INFORMATION CARRIER WITH PROTECTIVE EDGE |
| WO1985002482A1 (en) * | 1983-12-02 | 1985-06-06 | Burroughs Corporation | Cost-reduced optical disk record |
| JPS61214245A (en) * | 1985-03-20 | 1986-09-24 | Matsushita Electric Ind Co Ltd | Optical information recording medium |
| JPH061561B2 (en) * | 1985-08-21 | 1994-01-05 | 株式会社日立製作所 | Light disk |
| JPS6242347A (en) * | 1986-07-31 | 1987-02-24 | Sanyo Electric Co Ltd | Production of optical disk recorder |
| JPS63107589A (en) * | 1986-10-23 | 1988-05-12 | Nec Corp | Optical recording medium |
| LU87571A1 (en) * | 1989-08-23 | 1991-05-07 | Glaverbel | OPTICALLY READABLE INFORMATION RECORDING MEDIUM |
| EP1258874B1 (en) * | 1994-09-27 | 2006-04-19 | Matsushita Electric Industrial Co., Ltd. | Production process of optical information recording medium |
| EP0706179B1 (en) * | 1994-09-27 | 2002-12-11 | Matsushita Electric Industrial Co., Ltd. | Production process of optical information recording medium and production apparatus therefor |
| JP2742524B2 (en) * | 1994-10-03 | 1998-04-22 | 松下電器産業株式会社 | Optical information medium, optical information medium manufacturing method, and optical information medium manufacturing apparatus |
| EP0706178B1 (en) * | 1994-10-03 | 2001-05-16 | Matsushita Electric Industrial Co., Ltd. | Optical information medium, method for producing the optical information medium, and unit for producing the optical information medium |
| JPH08203126A (en) * | 1995-01-27 | 1996-08-09 | Nec Corp | Optical information recording medium, optical information reproducing method, and optical information recording, reproducing and erasing method |
| USRE39412E1 (en) | 1995-02-15 | 2006-11-28 | Matsushita Electric Industrial Co., Ltd. | Optical information medium, and method and apparatus for fabricating the same |
| US6842409B2 (en) | 2001-02-21 | 2005-01-11 | Scratch-Less Disc Industries, Llc | Optical disc and method of protecting same |
| US6680898B2 (en) | 2001-02-21 | 2004-01-20 | Todd J. Kuchman | Optical disc and method of protecting same |
| EP1637329A1 (en) | 2004-09-15 | 2006-03-22 | Domino Printing Sciences Plc | Droplet generator |
-
1977
- 1977-09-16 NL NL7710162A patent/NL7710162A/en not_active Application Discontinuation
-
1978
- 1978-09-07 ZA ZA785080A patent/ZA785080B/en unknown
- 1978-09-11 DE DE19782839395 patent/DE2839395A1/en active Pending
- 1978-09-12 FR FR7826177A patent/FR2403617A1/en active Granted
- 1978-09-12 AR AR273675A patent/AR216540A1/en active
- 1978-09-13 SE SE7809614A patent/SE438568B/en not_active IP Right Cessation
- 1978-09-13 NZ NZ188406A patent/NZ188406A/en unknown
- 1978-09-13 AU AU39827/78A patent/AU523032B2/en not_active Expired
- 1978-09-13 GB GB7836652A patent/GB2004404B/en not_active Expired
- 1978-09-13 DD DD78207804A patent/DD139774A5/en unknown
- 1978-09-13 IT IT27635/78A patent/IT1098622B/en active
- 1978-09-13 DK DK403478A patent/DK403478A/en not_active Application Discontinuation
- 1978-09-13 CH CH956878A patent/CH637783A5/en not_active IP Right Cessation
- 1978-09-14 CA CA311,349A patent/CA1124396A/en not_active Expired
- 1978-09-14 ES ES473343A patent/ES473343A1/en not_active Expired
- 1978-09-14 BE BE190480A patent/BE870476A/en not_active IP Right Cessation
- 1978-09-14 MX MX174881A patent/MX148376A/en unknown
- 1978-09-14 BR BR7806005A patent/BR7806005A/en unknown
- 1978-09-14 JP JP11243478A patent/JPS5454003A/en active Granted
- 1978-09-15 AT AT0667878A patent/AT371278B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IT1098622B (en) | 1985-09-07 |
| SE7809614L (en) | 1979-03-17 |
| GB2004404A (en) | 1979-03-28 |
| BE870476A (en) | 1979-03-14 |
| DK403478A (en) | 1979-03-17 |
| SE438568B (en) | 1985-04-22 |
| ES473343A1 (en) | 1979-04-16 |
| AR216540A1 (en) | 1979-12-28 |
| ZA785080B (en) | 1980-04-30 |
| MX148376A (en) | 1983-04-13 |
| NZ188406A (en) | 1982-05-31 |
| DE2839395A1 (en) | 1979-03-29 |
| BR7806005A (en) | 1979-04-24 |
| CA1124396A (en) | 1982-05-25 |
| AU3982778A (en) | 1980-03-20 |
| AU523032B2 (en) | 1982-07-08 |
| AT371278B (en) | 1983-06-10 |
| IT7827635A0 (en) | 1978-09-13 |
| JPS5454003A (en) | 1979-04-27 |
| JPS574973B2 (en) | 1982-01-28 |
| DD139774A5 (en) | 1980-01-16 |
| CH637783A5 (en) | 1983-08-15 |
| FR2403617B1 (en) | 1983-06-17 |
| FR2403617A1 (en) | 1979-04-13 |
| ATA667878A (en) | 1982-10-15 |
| NL7710162A (en) | 1979-03-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |