JPH01173313A - 磁気記録媒体 - Google Patents
磁気記録媒体Info
- Publication number
- JPH01173313A JPH01173313A JP33051687A JP33051687A JPH01173313A JP H01173313 A JPH01173313 A JP H01173313A JP 33051687 A JP33051687 A JP 33051687A JP 33051687 A JP33051687 A JP 33051687A JP H01173313 A JPH01173313 A JP H01173313A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- layer
- thickness
- recording medium
- magnetic layer
- 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
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 229910020630 Co Ni Inorganic materials 0.000 claims abstract description 8
- 229910002440 Co–Ni Inorganic materials 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 69
- 239000011241 protective layer Substances 0.000 claims description 3
- 230000005415 magnetization Effects 0.000 abstract description 19
- 238000010030 laminating Methods 0.000 abstract description 4
- 229910052804 chromium Inorganic materials 0.000 abstract description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 16
- 238000003475 lamination Methods 0.000 description 15
- 238000004544 sputter deposition Methods 0.000 description 14
- 230000007423 decrease Effects 0.000 description 9
- 239000010408 film Substances 0.000 description 8
- 239000010409 thin film Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001755 magnetron sputter deposition Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910020676 Co—N Inorganic materials 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 240000006909 Tilia x europaea Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33051687A JPH01173313A (ja) | 1987-12-26 | 1987-12-26 | 磁気記録媒体 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33051687A JPH01173313A (ja) | 1987-12-26 | 1987-12-26 | 磁気記録媒体 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01173313A true JPH01173313A (ja) | 1989-07-10 |
| JPH0416851B2 JPH0416851B2 (enrdf_load_stackoverflow) | 1992-03-25 |
Family
ID=18233502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33051687A Granted JPH01173313A (ja) | 1987-12-26 | 1987-12-26 | 磁気記録媒体 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01173313A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5587235A (en) * | 1993-02-19 | 1996-12-24 | Hitachi, Ltd. | Magnetic recording medium and magnetic recording apparatus |
| US5605733A (en) * | 1992-01-22 | 1997-02-25 | Hitachi, Ltd. | Magnetic recording medium, method for its production, and system for its use |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5917826A (ja) * | 1982-07-20 | 1984-01-30 | 松下電工株式会社 | 太陽電池充電回路 |
| JPS59112427A (ja) * | 1982-12-17 | 1984-06-28 | Sony Corp | 磁気記録媒体 |
-
1987
- 1987-12-26 JP JP33051687A patent/JPH01173313A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5917826A (ja) * | 1982-07-20 | 1984-01-30 | 松下電工株式会社 | 太陽電池充電回路 |
| JPS59112427A (ja) * | 1982-12-17 | 1984-06-28 | Sony Corp | 磁気記録媒体 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5605733A (en) * | 1992-01-22 | 1997-02-25 | Hitachi, Ltd. | Magnetic recording medium, method for its production, and system for its use |
| US5587235A (en) * | 1993-02-19 | 1996-12-24 | Hitachi, Ltd. | Magnetic recording medium and magnetic recording apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0416851B2 (enrdf_load_stackoverflow) | 1992-03-25 |
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