JPS647346A - Information recording medium - Google Patents
Information recording mediumInfo
- Publication number
- JPS647346A JPS647346A JP62163039A JP16303987A JPS647346A JP S647346 A JPS647346 A JP S647346A JP 62163039 A JP62163039 A JP 62163039A JP 16303987 A JP16303987 A JP 16303987A JP S647346 A JPS647346 A JP S647346A
- Authority
- JP
- Japan
- Prior art keywords
- recording layer
- phases
- crystalline
- recording
- mixing enthalpy
- 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.)
- Granted
Links
- 239000010410 layer Substances 0.000 abstract 7
- 239000012071 phase Substances 0.000 abstract 6
- 239000000956 alloy Substances 0.000 abstract 3
- 229910045601 alloy Inorganic materials 0.000 abstract 3
- 239000011241 protective layer Substances 0.000 abstract 3
- 239000007791 liquid phase Substances 0.000 abstract 2
- 239000007790 solid phase Substances 0.000 abstract 2
- 229920005668 polycarbonate resin Polymers 0.000 abstract 1
- 239000004431 polycarbonate resin Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
PURPOSE:To surely transit phases between crystalline and amorphous phases in the part of a recording layer irradiated with a light beam by forming the recording layer of an alloy which is constituted of >=2 elements and in which the mixing enthalpy of the liquid phase is lower than the mixing enthalpy of the solid phase at room temp. CONSTITUTION:A protective layer 12, the recording layer 13, a protective layer 14 and an outside protective layer are formed on a substrate 11 consisting of a polycarbonate resin, etc. The recording layer 13 is constituted of the alloy having the compsn. InXSbYTeZ and the values of X, Y, Z are so adjusted that the mixing enthalpy of the liquid phase exhibits the value smaller than the prescribed value. Since this prescribed value is lower than the mixing enthalpy of the solid phase, the phases can be surely transited between the crystalline and amorphous phases in the part of the recording layer irradiated with the light beam. Recording and erasing are, therefore, satisfactorily executed with the recording layer of an information recording medium of the type to record and erase the information by utilizing the phase transition between the crystalline and amorphous phases, by adequately selecting the alloy structure of said recording layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62163039A JP2685754B2 (en) | 1987-06-30 | 1987-06-30 | Information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62163039A JP2685754B2 (en) | 1987-06-30 | 1987-06-30 | Information recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS647346A true JPS647346A (en) | 1989-01-11 |
| JP2685754B2 JP2685754B2 (en) | 1997-12-03 |
Family
ID=15766021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62163039A Expired - Lifetime JP2685754B2 (en) | 1987-06-30 | 1987-06-30 | Information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2685754B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01162247A (en) * | 1987-12-18 | 1989-06-26 | Nippon Telegr & Teleph Corp <Ntt> | Rewriting type phase transfer optical recording medium |
| US4944344A (en) * | 1988-10-31 | 1990-07-31 | Sundstrand Corporation | Hermetically sealed modular electronic cold plate utilizing reflux cooling |
| US5202881A (en) * | 1989-06-30 | 1993-04-13 | Kabushiki Kaisha Toshiba | Information storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62143241A (en) * | 1985-11-25 | 1987-06-26 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | Optical type information recording method and optical type recording element used therefor |
| JPS62208442A (en) * | 1986-03-07 | 1987-09-12 | Nippon Telegr & Teleph Corp <Ntt> | Rewriting type optical recording medium |
| JPS63237990A (en) * | 1987-03-27 | 1988-10-04 | Toray Ind Inc | Optical recording medium |
-
1987
- 1987-06-30 JP JP62163039A patent/JP2685754B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62143241A (en) * | 1985-11-25 | 1987-06-26 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | Optical type information recording method and optical type recording element used therefor |
| JPS62208442A (en) * | 1986-03-07 | 1987-09-12 | Nippon Telegr & Teleph Corp <Ntt> | Rewriting type optical recording medium |
| JPS63237990A (en) * | 1987-03-27 | 1988-10-04 | Toray Ind Inc | Optical recording medium |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01162247A (en) * | 1987-12-18 | 1989-06-26 | Nippon Telegr & Teleph Corp <Ntt> | Rewriting type phase transfer optical recording medium |
| US4944344A (en) * | 1988-10-31 | 1990-07-31 | Sundstrand Corporation | Hermetically sealed modular electronic cold plate utilizing reflux cooling |
| US5202881A (en) * | 1989-06-30 | 1993-04-13 | Kabushiki Kaisha Toshiba | Information storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2685754B2 (en) | 1997-12-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |