JPS644935A - Information recording medium - Google Patents
Information recording mediumInfo
- Publication number
- JPS644935A JPS644935A JP62161621A JP16162187A JPS644935A JP S644935 A JPS644935 A JP S644935A JP 62161621 A JP62161621 A JP 62161621A JP 16162187 A JP16162187 A JP 16162187A JP S644935 A JPS644935 A JP S644935A
- Authority
- JP
- Japan
- Prior art keywords
- recording layer
- layer
- recording
- protective
- erased
- 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
Links
Abstract
PURPOSE:To suppress defective initialization so that information can be stably recorded and erased by using a porous dielectric material to form at least the part, adjacent to a recording layer, of 1st and 2nd protective layers disposed to sandwich the recording layer. CONSTITUTION:The protective layer 12, the recording layer 13, the protective layer 14 and a reflecting layer are formed in this order on a substrate 11. A recording region 19 is formed on the recording layer 13 by projecting a laser beam 18 for recording thereto. The protective layers 12, 14 are disposed to sandwich the recording layer 13 and are formed of such porous dielectric material as, for example, porous SiO2. The cooling rate in the part of the recording layer 13 where the light beam 18 is projected is thereby lowered and the crystallization and phase change in the part irradiated with the light beam 18 are facilitated and, therefore, the generation of the defective initialization is suppressed and the information is stably recorded and erased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62161621A JPS644935A (en) | 1987-06-29 | 1987-06-29 | Information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62161621A JPS644935A (en) | 1987-06-29 | 1987-06-29 | Information recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS644935A true JPS644935A (en) | 1989-01-10 |
Family
ID=15738660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62161621A Pending JPS644935A (en) | 1987-06-29 | 1987-06-29 | Information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS644935A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6256286B1 (en) | 1997-02-21 | 2001-07-03 | Nec Corporation | Method for initiating a phase change recording medium |
| JP2008501206A (en) * | 2004-05-28 | 2008-01-17 | コミツサリア タ レネルジー アトミーク | Recording device having a porous thermal barrier |
| WO2009154122A1 (en) | 2008-06-17 | 2009-12-23 | 財団法人地球環境産業技術研究機構 | Coryneform bacterium transformant having improved d-xylose-utilizing function |
| WO2023223673A1 (en) * | 2022-05-17 | 2023-11-23 | パナソニックＩｐマネジメント株式会社 | Optical recording medium, method for recording information, and method for reading out information |
-
1987
- 1987-06-29 JP JP62161621A patent/JPS644935A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6256286B1 (en) | 1997-02-21 | 2001-07-03 | Nec Corporation | Method for initiating a phase change recording medium |
| JP2008501206A (en) * | 2004-05-28 | 2008-01-17 | コミツサリア タ レネルジー アトミーク | Recording device having a porous thermal barrier |
| WO2009154122A1 (en) | 2008-06-17 | 2009-12-23 | 財団法人地球環境産業技術研究機構 | Coryneform bacterium transformant having improved d-xylose-utilizing function |
| WO2023223673A1 (en) * | 2022-05-17 | 2023-11-23 | パナソニックＩｐマネジメント株式会社 | Optical recording medium, method for recording information, and method for reading out information |
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