JPS6442022A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS6442022A JPS6442022A JP19739287A JP19739287A JPS6442022A JP S6442022 A JPS6442022 A JP S6442022A JP 19739287 A JP19739287 A JP 19739287A JP 19739287 A JP19739287 A JP 19739287A JP S6442022 A JPS6442022 A JP S6442022A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- substrate
- recording medium
- buffer layer
- al2o3
- 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 reduce weight and cost while maintaining excellent magnetic characteristics by interposing an Al2O3 film as a buffer layer between a plastic substrate and nonmagnetic metallic underlying layer. CONSTITUTION:The buffer layer 6 consisting of the thin aluminum oxide (Al2O3) film, the nonmagnetic metallic underlying layer 3, a magnetic layer 4 and a protective lubricating layer 5 are continuously formed in this order by sputtering on the nonmagnetic substrate 1a consisting of plastic, etc. Namely, the thin Al2O3 film is formed by sputtering so as to be interposed as the buffer layer 6 and, therefore, the gaseous release of the moisture, etc., occluded in the substrate 1a is prevented. The magnetic recording medium which is lighter in weight and lower in cost than heretofore is thereby obtd. while the good magnetic characteristics are maintained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19739287A JPS6442022A (en) | 1987-08-07 | 1987-08-07 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19739287A JPS6442022A (en) | 1987-08-07 | 1987-08-07 | Magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6442022A true JPS6442022A (en) | 1989-02-14 |
Family
ID=16373743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19739287A Pending JPS6442022A (en) | 1987-08-07 | 1987-08-07 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6442022A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6911256B2 (en) | 2003-06-30 | 2005-06-28 | Imation Corp. | Buffer layers for magnetic media with a plastic substrate |
-
1987
- 1987-08-07 JP JP19739287A patent/JPS6442022A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6911256B2 (en) | 2003-06-30 | 2005-06-28 | Imation Corp. | Buffer layers for magnetic media with a plastic substrate |
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