JPS60138722A - 磁気記録媒体 - Google Patents
磁気記録媒体Info
- Publication number
- JPS60138722A JPS60138722A JP24468883A JP24468883A JPS60138722A JP S60138722 A JPS60138722 A JP S60138722A JP 24468883 A JP24468883 A JP 24468883A JP 24468883 A JP24468883 A JP 24468883A JP S60138722 A JPS60138722 A JP S60138722A
- Authority
- JP
- Japan
- Prior art keywords
- film
- recording medium
- layer
- magnetic recording
- polyimide
- 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
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 38
- 229920001721 polyimide Polymers 0.000 claims abstract description 14
- 239000004642 Polyimide Substances 0.000 claims abstract description 10
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 238000005266 casting Methods 0.000 claims abstract description 5
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000003746 surface roughness Effects 0.000 abstract description 4
- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- JVERADGGGBYHNP-UHFFFAOYSA-N 5-phenylbenzene-1,2,3,4-tetracarboxylic acid Chemical compound OC(=O)C1=C(C(O)=O)C(C(=O)O)=CC(C=2C=CC=CC=2)=C1C(O)=O JVERADGGGBYHNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000008021 deposition Effects 0.000 abstract description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 150000004985 diamines Chemical class 0.000 abstract 1
- 230000005294 ferromagnetic effect Effects 0.000 abstract 1
- 239000010408 film Substances 0.000 description 16
- 239000010409 thin film Substances 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 4
- 229920002799 BoPET Polymers 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 150000004984 aromatic diamines Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005566 electron beam evaporation Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 229910020630 Co Ni Inorganic materials 0.000 description 1
- 229910002440 Co–Ni Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001017 electron-beam sputter deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920005575 poly(amic acid) Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000006158 tetracarboxylic acid group Chemical group 0.000 description 1
Landscapes
- Magnetic Record Carriers (AREA)
- Paints Or Removers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24468883A JPS60138722A (ja) | 1983-12-27 | 1983-12-27 | 磁気記録媒体 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24468883A JPS60138722A (ja) | 1983-12-27 | 1983-12-27 | 磁気記録媒体 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60138722A true JPS60138722A (ja) | 1985-07-23 |
| JPH058489B2 JPH058489B2 (enrdf_load_stackoverflow) | 1993-02-02 |
Family
ID=17122459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24468883A Granted JPS60138722A (ja) | 1983-12-27 | 1983-12-27 | 磁気記録媒体 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60138722A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01245415A (ja) * | 1988-03-25 | 1989-09-29 | Canon Inc | 磁気記録媒体 |
-
1983
- 1983-12-27 JP JP24468883A patent/JPS60138722A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01245415A (ja) * | 1988-03-25 | 1989-09-29 | Canon Inc | 磁気記録媒体 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH058489B2 (enrdf_load_stackoverflow) | 1993-02-02 |
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