JPS61194628A - 磁気記録媒体 - Google Patents
磁気記録媒体Info
- Publication number
- JPS61194628A JPS61194628A JP60033661A JP3366185A JPS61194628A JP S61194628 A JPS61194628 A JP S61194628A JP 60033661 A JP60033661 A JP 60033661A JP 3366185 A JP3366185 A JP 3366185A JP S61194628 A JPS61194628 A JP S61194628A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- fe2o3
- granular
- magnetic layer
- magnetic powder
- 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
- 239000002245 particle Substances 0.000 claims abstract description 13
- 239000006247 magnetic powder Substances 0.000 claims abstract description 12
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 abstract description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 6
- 239000010419 fine particle Substances 0.000 abstract description 3
- 239000003973 paint Substances 0.000 abstract description 3
- 235000021355 Stearic acid Nutrition 0.000 abstract description 2
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 abstract description 2
- 239000012046 mixed solvent Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 abstract description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 abstract description 2
- 229920005749 polyurethane resin Polymers 0.000 abstract description 2
- 229920002545 silicone oil Polymers 0.000 abstract description 2
- 239000008117 stearic acid Substances 0.000 abstract description 2
- 229910003145 α-Fe2O3 Inorganic materials 0.000 abstract 3
- 229910006297 γ-Fe2O3 Inorganic materials 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 8
- 238000002834 transmittance Methods 0.000 description 7
- 239000006229 carbon black Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 206010016275 Fear Diseases 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- SJHPCNCNNSSLPL-CSKARUKUSA-N (4e)-4-(ethoxymethylidene)-2-phenyl-1,3-oxazol-5-one Chemical compound O1C(=O)C(=C/OCC)\N=C1C1=CC=CC=C1 SJHPCNCNNSSLPL-CSKARUKUSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60033661A JPS61194628A (ja) | 1985-02-23 | 1985-02-23 | 磁気記録媒体 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60033661A JPS61194628A (ja) | 1985-02-23 | 1985-02-23 | 磁気記録媒体 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61194628A true JPS61194628A (ja) | 1986-08-29 |
| JPH0513327B2 JPH0513327B2 (enrdf_load_stackoverflow) | 1993-02-22 |
Family
ID=12392628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60033661A Granted JPS61194628A (ja) | 1985-02-23 | 1985-02-23 | 磁気記録媒体 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61194628A (enrdf_load_stackoverflow) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5712421A (en) * | 1980-06-23 | 1982-01-22 | Tdk Corp | Magnetic recording medium |
| JPS57179945A (en) * | 1981-04-28 | 1982-11-05 | Fuji Photo Film Co Ltd | Magnetic recording medium |
| JPS58122623A (ja) * | 1982-01-14 | 1983-07-21 | Sony Corp | 円盤状磁気記録媒体 |
| JPS58189826A (ja) * | 1982-04-30 | 1983-11-05 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
| JPS5928229A (ja) * | 1982-08-09 | 1984-02-14 | Victor Co Of Japan Ltd | 磁気記録媒体 |
| JPS6161230A (ja) * | 1984-08-31 | 1986-03-29 | Hitachi Maxell Ltd | 磁気記録媒体 |
-
1985
- 1985-02-23 JP JP60033661A patent/JPS61194628A/ja active Granted
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5712421A (en) * | 1980-06-23 | 1982-01-22 | Tdk Corp | Magnetic recording medium |
| JPS57179945A (en) * | 1981-04-28 | 1982-11-05 | Fuji Photo Film Co Ltd | Magnetic recording medium |
| JPS58122623A (ja) * | 1982-01-14 | 1983-07-21 | Sony Corp | 円盤状磁気記録媒体 |
| JPS58189826A (ja) * | 1982-04-30 | 1983-11-05 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
| JPS5928229A (ja) * | 1982-08-09 | 1984-02-14 | Victor Co Of Japan Ltd | 磁気記録媒体 |
| JPS6161230A (ja) * | 1984-08-31 | 1986-03-29 | Hitachi Maxell Ltd | 磁気記録媒体 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0513327B2 (enrdf_load_stackoverflow) | 1993-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |