JPS6453352A - Method for destroying and erasing optical disk information - Google Patents
Method for destroying and erasing optical disk informationInfo
- Publication number
- JPS6453352A JPS6453352A JP21065887A JP21065887A JPS6453352A JP S6453352 A JPS6453352 A JP S6453352A JP 21065887 A JP21065887 A JP 21065887A JP 21065887 A JP21065887 A JP 21065887A JP S6453352 A JPS6453352 A JP S6453352A
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- recording layer
- recording
- destroying
- destroy
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE:To destroy and erase recording information in a short time, by spraying substance which shows responsiveness or solubility for a recording layer in a gaseous state or atomizing state in a space part between optical disk substrates, and making it bring into contact with the recording layer. CONSTITUTION:The recording layers 3 are formed in the internal planes of a pair of disk substrates 1, 1, and they are adhered sandwiching outside spacers 2, 2 and inside spacers 2', 2'. Chemical substance which shows the responsiveness or the solubility for the recording layer is introduced in the space part between the substrates via a spray nozzle 6 by spraying. Such chemical substance is brought into contact with the recording layer 3, and is destroyed in a state impossible to be regenerated. In such a way, it is possible to erase all information recorded on an optical disk in a short time and to destroy is unregenerately.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21065887A JPS6453352A (en) | 1987-08-24 | 1987-08-24 | Method for destroying and erasing optical disk information |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21065887A JPS6453352A (en) | 1987-08-24 | 1987-08-24 | Method for destroying and erasing optical disk information |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6453352A true JPS6453352A (en) | 1989-03-01 |
Family
ID=16592958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21065887A Pending JPS6453352A (en) | 1987-08-24 | 1987-08-24 | Method for destroying and erasing optical disk information |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6453352A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7099110B2 (en) * | 2003-03-18 | 2006-08-29 | Ensconce Data Technology | Dead on demand disk technology |
-
1987
- 1987-08-24 JP JP21065887A patent/JPS6453352A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7099110B2 (en) * | 2003-03-18 | 2006-08-29 | Ensconce Data Technology | Dead on demand disk technology |
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