JPH0221049B2 - - Google Patents
Info
- Publication number
- JPH0221049B2 JPH0221049B2 JP967481A JP967481A JPH0221049B2 JP H0221049 B2 JPH0221049 B2 JP H0221049B2 JP 967481 A JP967481 A JP 967481A JP 967481 A JP967481 A JP 967481A JP H0221049 B2 JPH0221049 B2 JP H0221049B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- magnetic
- substrate
- orientation
- coating film
- 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
- 238000000576 coating method Methods 0.000 claims description 22
- 239000011248 coating agent Substances 0.000 claims description 21
- 239000000758 substrate Substances 0.000 claims description 18
- 239000010419 fine particle Substances 0.000 claims description 15
- 239000003973 paint Substances 0.000 claims description 14
- 230000005415 magnetization Effects 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000006249 magnetic particle Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001868 cobalt Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003608 titanium Chemical class 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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/852—Orientation in a magnetic field
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP967481A JPS57127931A (en) | 1981-01-27 | 1981-01-27 | Method and apparatus for manufacture of vertical magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP967481A JPS57127931A (en) | 1981-01-27 | 1981-01-27 | Method and apparatus for manufacture of vertical magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57127931A JPS57127931A (en) | 1982-08-09 |
| JPH0221049B2 true JPH0221049B2 (US06373033-20020416-M00071.png) | 1990-05-11 |
Family
ID=11726753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP967481A Granted JPS57127931A (en) | 1981-01-27 | 1981-01-27 | Method and apparatus for manufacture of vertical magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57127931A (US06373033-20020416-M00071.png) |
-
1981
- 1981-01-27 JP JP967481A patent/JPS57127931A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57127931A (en) | 1982-08-09 |
