DE3763594D1 - Struktur einer optischen scheibe mit zwischenraum zwischen den aufzeichnungsschichten. - Google Patents
Struktur einer optischen scheibe mit zwischenraum zwischen den aufzeichnungsschichten.Info
- Publication number
- DE3763594D1 DE3763594D1 DE8787300686T DE3763594T DE3763594D1 DE 3763594 D1 DE3763594 D1 DE 3763594D1 DE 8787300686 T DE8787300686 T DE 8787300686T DE 3763594 T DE3763594 T DE 3763594T DE 3763594 D1 DE3763594 D1 DE 3763594D1
- Authority
- DE
- Germany
- Prior art keywords
- space
- optical disc
- recording layers
- recording
- layers
- 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
- 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
-
- 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
- G11B7/253—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
- G11B7/253—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
- G11B7/2538—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 polycycloolefins [PCO]
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1476186 | 1986-01-28 | ||
JP61016839A JPH0724120B2 (ja) | 1986-01-30 | 1986-01-30 | 情報記録基板の製法 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3763594D1 true DE3763594D1 (de) | 1990-08-16 |
Family
ID=26350773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787300686T Expired - Fee Related DE3763594D1 (de) | 1986-01-28 | 1987-01-27 | Struktur einer optischen scheibe mit zwischenraum zwischen den aufzeichnungsschichten. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4720715A (de) |
EP (1) | EP0231121B1 (de) |
CA (1) | CA1270950A (de) |
DE (1) | DE3763594D1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4906675A (en) * | 1986-02-12 | 1990-03-06 | Mitsui Petrochemical Industries, Ltd. | Active energy ray-curable composition |
US4874808A (en) * | 1987-05-01 | 1989-10-17 | Syuji Minami | Cycloolefin type random copolymer compositions and uses thereof |
JPS6431844A (en) * | 1987-07-27 | 1989-02-02 | Mitsui Petrochemical Ind | Polymer composition for spacer of information recording base plate |
ATE133984T1 (de) * | 1987-10-08 | 1996-02-15 | Mitsui Petrochemical Ind | Random-cycloolefin-kopolymerzusammensetzung |
MY104252A (en) * | 1988-11-01 | 1994-02-28 | Mitsui Petrochemical Ind | Optical recording media. |
MY104251A (en) * | 1988-11-01 | 1994-02-28 | Mitsui Chemicals Inc | Optical recording media |
US5059462A (en) * | 1988-11-24 | 1991-10-22 | Mitsui Petrochemical Industries, Ltd. | Information recording medium |
FI106117B (fi) * | 1998-02-06 | 2000-11-30 | Optatech Oy | Menetelmä syklisten monomeerien valmistamiseksi |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4449138A (en) * | 1981-04-15 | 1984-05-15 | Tokyo Shibaura Denki Kabushiki Kaisha | Information recording medium |
JPS6013335A (ja) * | 1983-06-30 | 1985-01-23 | Sumitomo Chem Co Ltd | メタクリル系樹脂からなる情報記録体 |
US4614778A (en) * | 1984-02-03 | 1986-09-30 | Hirokazu Kajiura | Random copolymer |
US5226957A (en) * | 1992-03-17 | 1993-07-13 | Hewlett-Packard Company | Solubilization of water-insoluble dyes via microemulsions for bleedless, non-threading, high print quality inks for thermal ink-jet printers |
-
1987
- 1987-01-27 CA CA000528229A patent/CA1270950A/en not_active Expired - Fee Related
- 1987-01-27 EP EP87300686A patent/EP0231121B1/de not_active Expired
- 1987-01-27 DE DE8787300686T patent/DE3763594D1/de not_active Expired - Fee Related
- 1987-01-28 US US07/007,610 patent/US4720715A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0231121B1 (de) | 1990-07-11 |
EP0231121A2 (de) | 1987-08-05 |
US4720715A (en) | 1988-01-19 |
CA1270950A (en) | 1990-06-26 |
EP0231121A3 (en) | 1989-02-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: MITSUI CHEMICALS, INC., TOKIO/TOKYO, JP |
|
8339 | Ceased/non-payment of the annual fee |