JPS6478416A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS6478416A JPS6478416A JP23603787A JP23603787A JPS6478416A JP S6478416 A JPS6478416 A JP S6478416A JP 23603787 A JP23603787 A JP 23603787A JP 23603787 A JP23603787 A JP 23603787A JP S6478416 A JPS6478416 A JP S6478416A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic layer
- face part
- concn
- oxygen
- intra
- 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
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To improve corrosion resistance by oxidizing the end face part or near the end face part of a magnetic layer to form an oxygen concn. distribution in which the concn. of the oxygen contained in the magnetic layer is maximized in the end face part or near the end face part of the magnetic layer and decreases gradually in the intra-surface direction of the magnetic layer. CONSTITUTION:The thin ferromagnetic metallic film formed directly or via an underlying layer on a nonmagnetic substrate 2 is used as the magnetic layer 1. The end face part or near the end face part of the magnetic layer 1 is subjected to the oxidizing treatment to form the oxygen concn. distribution in which the concn. of the oxygen contained in the magnetic layer 1 is max. in the end face part or near the end face part of the magnetic layer 1 and decreases gradually in the intra-surface direction of the magnetic layer 1. The oxide consisting of at least one kind among the trivalent or higher oxides and hydrous oxides of the elements constituting the magnetic layer 1 is formed in the end face part or near the end face part of the magnetic layer 1. The corrosion resistance is thereby improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23603787A JPS6478416A (en) | 1987-09-19 | 1987-09-19 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23603787A JPS6478416A (en) | 1987-09-19 | 1987-09-19 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6478416A true JPS6478416A (en) | 1989-03-23 |
Family
ID=16994826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23603787A Pending JPS6478416A (en) | 1987-09-19 | 1987-09-19 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6478416A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100765266B1 (en) * | 2006-12-06 | 2007-10-09 | 삼성전자주식회사 | Fan packaging unit |
-
1987
- 1987-09-19 JP JP23603787A patent/JPS6478416A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100765266B1 (en) * | 2006-12-06 | 2007-10-09 | 삼성전자주식회사 | Fan packaging unit |
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