FI890425A - Metod foer optisk datalagring och material foer denna. - Google Patents
Metod foer optisk datalagring och material foer denna. Download PDFInfo
- Publication number
- FI890425A FI890425A FI890425A FI890425A FI890425A FI 890425 A FI890425 A FI 890425A FI 890425 A FI890425 A FI 890425A FI 890425 A FI890425 A FI 890425A FI 890425 A FI890425 A FI 890425A
- Authority
- FI
- Finland
- Prior art keywords
- datalagring
- denna
- optical
- optical datalagring
- Prior art date
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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0055—Erasing
- G11B7/00552—Erasing involving colour change media
-
- 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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB878712687A GB8712687D0 (en) | 1987-05-29 | 1987-05-29 | Optical data storage |
PCT/GB1988/000423 WO1988009549A1 (en) | 1987-05-29 | 1988-05-27 | Optical data storage method and materials therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
FI890425A0 FI890425A0 (fi) | 1989-01-27 |
FI890425A true FI890425A (fi) | 1989-01-27 |
Family
ID=10618136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI890425A FI890425A (fi) | 1987-05-29 | 1989-01-27 | Metod foer optisk datalagring och material foer denna. |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0316394A1 (fi) |
JP (1) | JPH01503501A (fi) |
AU (1) | AU1801488A (fi) |
DK (1) | DK35089A (fi) |
FI (1) | FI890425A (fi) |
GB (1) | GB8712687D0 (fi) |
WO (1) | WO1988009549A1 (fi) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4950579A (en) * | 1988-07-08 | 1990-08-21 | Minnesota Mining And Manufacturing Company | Optical disc recording medium having a microstructure-derived inhomogeneity or anisotropy |
US5249175A (en) * | 1988-09-09 | 1993-09-28 | Matsushita Electric Industrial Co., Ltd. | Optical information recording medium and information recording and reproducing method therefor |
EP0360466B1 (en) * | 1988-09-09 | 1997-01-29 | Matsushita Electric Industrial Co., Ltd. | Optical information recording medium and information recording and reproducing method therefor |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1600615A (en) * | 1977-10-28 | 1981-10-21 | Plessey Co Ltd | Photochromic compounds |
NL8401995A (nl) * | 1984-06-22 | 1986-01-16 | Docdata Bv | Optische informatiedrager met mozaiekstructuur. |
-
1987
- 1987-05-29 GB GB878712687A patent/GB8712687D0/en active Pending
-
1988
- 1988-05-27 AU AU18014/88A patent/AU1801488A/en not_active Abandoned
- 1988-05-27 EP EP88904589A patent/EP0316394A1/en not_active Withdrawn
- 1988-05-27 WO PCT/GB1988/000423 patent/WO1988009549A1/en not_active Application Discontinuation
- 1988-05-27 JP JP63504414A patent/JPH01503501A/ja active Pending
-
1989
- 1989-01-27 DK DK035089A patent/DK35089A/da not_active Application Discontinuation
- 1989-01-27 FI FI890425A patent/FI890425A/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK35089D0 (da) | 1989-01-27 |
AU1801488A (en) | 1988-12-21 |
WO1988009549A1 (en) | 1988-12-01 |
FI890425A0 (fi) | 1989-01-27 |
DK35089A (da) | 1989-01-27 |
GB8712687D0 (en) | 1987-07-01 |
JPH01503501A (ja) | 1989-11-22 |
EP0316394A1 (en) | 1989-05-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: TRAQSON LIMITED |