JPH028370B2 - - Google Patents
Info
- Publication number
- JPH028370B2 JPH028370B2 JP56170913A JP17091381A JPH028370B2 JP H028370 B2 JPH028370 B2 JP H028370B2 JP 56170913 A JP56170913 A JP 56170913A JP 17091381 A JP17091381 A JP 17091381A JP H028370 B2 JPH028370 B2 JP H028370B2
- Authority
- JP
- Japan
- Prior art keywords
- present
- layer
- thickness
- magnetic
- dropouts
- 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.)
- Expired
Links
- 230000005291 magnetic effect Effects 0.000 claims description 23
- 239000000758 substrate Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 3
- 230000005294 ferromagnetic effect Effects 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 20
- 230000000694 effects Effects 0.000 description 5
- 239000011247 coating layer Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 239000005997 Calcium carbide Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910020598 Co Fe Inorganic materials 0.000 description 1
- 229910002519 Co-Fe Inorganic materials 0.000 description 1
- 229910002441 CoNi Inorganic materials 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005566 electron beam evaporation Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 125000005487 naphthalate group Chemical group 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/735—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/739—Magnetic recording media substrates
- G11B5/73923—Organic polymer substrates
Landscapes
- Magnetic Record Carriers (AREA)
- Thin Magnetic Films (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56170913A JPS5873016A (ja) | 1981-10-26 | 1981-10-26 | 磁気記録媒体 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56170913A JPS5873016A (ja) | 1981-10-26 | 1981-10-26 | 磁気記録媒体 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5873016A JPS5873016A (ja) | 1983-05-02 |
| JPH028370B2 true JPH028370B2 (OSRAM) | 1990-02-23 |
Family
ID=15913659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56170913A Granted JPS5873016A (ja) | 1981-10-26 | 1981-10-26 | 磁気記録媒体 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5873016A (OSRAM) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2620190B2 (ja) * | 1993-07-08 | 1997-06-11 | 株式会社イトックス | 家具等の蓋付き梱包布団 |
| JP2620189B2 (ja) * | 1993-07-08 | 1997-06-11 | 株式会社イトックス | 家具等の蓋付き梱包布団 |
-
1981
- 1981-10-26 JP JP56170913A patent/JPS5873016A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5873016A (ja) | 1983-05-02 |
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