JPS58100221A - 磁気記録媒体 - Google Patents
磁気記録媒体Info
- Publication number
- JPS58100221A JPS58100221A JP56199282A JP19928281A JPS58100221A JP S58100221 A JPS58100221 A JP S58100221A JP 56199282 A JP56199282 A JP 56199282A JP 19928281 A JP19928281 A JP 19928281A JP S58100221 A JPS58100221 A JP S58100221A
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- magnetic recording
- head
- protrusions
- clogging
- 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 37
- 239000010409 thin film Substances 0.000 claims abstract description 19
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 229920006267 polyester film Polymers 0.000 description 12
- 239000010408 film Substances 0.000 description 10
- 239000000758 substrate Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 4
- 239000011882 ultra-fine particle Substances 0.000 description 4
- 230000037303 wrinkles Effects 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 241001233061 earthworms Species 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002685 polymerization catalyst Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000007738 vacuum evaporation Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910002441 CoNi Inorganic materials 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000002253 acid Substances 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
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- -1 titanium alkoxide Chemical class 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000001771 vacuum deposition Methods 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
- G11B5/739—Magnetic recording media substrates
- G11B5/73923—Organic polymer substrates
- G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Magnetic Record Carriers (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56199282A JPS58100221A (ja) | 1981-12-09 | 1981-12-09 | 磁気記録媒体 |
| US06/434,600 US4578729A (en) | 1981-10-15 | 1982-10-15 | Magnetic recording medium |
| EP82109567A EP0077549B2 (en) | 1981-10-15 | 1982-10-15 | Magnetic recording medium |
| DE198282109567T DE77549T1 (de) | 1981-10-15 | 1982-10-15 | Magnetisches aufzeichnungsmedium. |
| DE8282109567T DE3277996D1 (en) | 1981-10-15 | 1982-10-15 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56199282A JPS58100221A (ja) | 1981-12-09 | 1981-12-09 | 磁気記録媒体 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58100221A true JPS58100221A (ja) | 1983-06-14 |
| JPH0547888B2 JPH0547888B2 (enrdf_load_stackoverflow) | 1993-07-20 |
Family
ID=16405196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56199282A Granted JPS58100221A (ja) | 1981-10-15 | 1981-12-09 | 磁気記録媒体 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58100221A (enrdf_load_stackoverflow) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6069816A (ja) * | 1983-09-22 | 1985-04-20 | Matsushita Electric Ind Co Ltd | 磁気記録媒体 |
| JPS6080134A (ja) * | 1983-10-11 | 1985-05-08 | Matsushita Electric Ind Co Ltd | 磁気記録媒体 |
| JPS6142722A (ja) * | 1984-08-02 | 1986-03-01 | Tdk Corp | 磁気記録方法 |
| JPS6280825A (ja) * | 1985-10-04 | 1987-04-14 | Sony Corp | 磁気記録媒体 |
| US4770924A (en) * | 1986-07-02 | 1988-09-13 | Tdk Corporation | Magnetic recording medium |
| US4780354A (en) * | 1986-02-05 | 1988-10-25 | Tdk Corporation | Magnetic recording medium |
| US4828899A (en) * | 1984-08-02 | 1989-05-09 | Tdk Corporation | Magnetic recording medium and recording/reproducing method thereof |
| US4837116A (en) * | 1984-08-03 | 1989-06-06 | Tdk Corporation | Magnetic recording medium and recording/reproducing method therefor |
| US5114778A (en) * | 1987-10-23 | 1992-05-19 | Fuji Photo Film Co., Ltd. | Magnetic recording medium |
| US5496618A (en) * | 1991-06-28 | 1996-03-05 | Teijin Limited | Polyester film for magnetic recording media, process for preparation thereof and magnetic recording medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53107315A (en) * | 1977-03-01 | 1978-09-19 | Matsushita Electric Ind Co Ltd | Magnetic recording method |
| JPS53107314A (en) * | 1977-03-01 | 1978-09-19 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
| JPS53109607A (en) * | 1977-03-04 | 1978-09-25 | Matsushita Electric Ind Co Ltd | Production of magnetic recording medium |
| JPS54143112A (en) * | 1978-04-27 | 1979-11-08 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
| JPS5613517A (en) * | 1979-07-16 | 1981-02-09 | Tdk Corp | Magnetic recording medium |
| JPS5613518A (en) * | 1979-07-16 | 1981-02-09 | Tdk Corp | Magnetic recording medium |
| JPS5613516A (en) * | 1979-07-16 | 1981-02-09 | Tdk Corp | Magnetic recording medium |
| JPS5616937A (en) * | 1979-07-17 | 1981-02-18 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
-
1981
- 1981-12-09 JP JP56199282A patent/JPS58100221A/ja active Granted
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53107315A (en) * | 1977-03-01 | 1978-09-19 | Matsushita Electric Ind Co Ltd | Magnetic recording method |
| JPS53107314A (en) * | 1977-03-01 | 1978-09-19 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
| JPS53109607A (en) * | 1977-03-04 | 1978-09-25 | Matsushita Electric Ind Co Ltd | Production of magnetic recording medium |
| JPS54143112A (en) * | 1978-04-27 | 1979-11-08 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
| JPS5613517A (en) * | 1979-07-16 | 1981-02-09 | Tdk Corp | Magnetic recording medium |
| JPS5613518A (en) * | 1979-07-16 | 1981-02-09 | Tdk Corp | Magnetic recording medium |
| JPS5613516A (en) * | 1979-07-16 | 1981-02-09 | Tdk Corp | Magnetic recording medium |
| JPS5616937A (en) * | 1979-07-17 | 1981-02-18 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6069816A (ja) * | 1983-09-22 | 1985-04-20 | Matsushita Electric Ind Co Ltd | 磁気記録媒体 |
| JPS6080134A (ja) * | 1983-10-11 | 1985-05-08 | Matsushita Electric Ind Co Ltd | 磁気記録媒体 |
| JPS6142722A (ja) * | 1984-08-02 | 1986-03-01 | Tdk Corp | 磁気記録方法 |
| US4734810A (en) * | 1984-08-02 | 1988-03-29 | Tdk Corporation | Magnetic recording medium comprising protrusion on its surface and a plasma treated substrate and recording/reproducing method therefor |
| US4828899A (en) * | 1984-08-02 | 1989-05-09 | Tdk Corporation | Magnetic recording medium and recording/reproducing method thereof |
| US4837116A (en) * | 1984-08-03 | 1989-06-06 | Tdk Corporation | Magnetic recording medium and recording/reproducing method therefor |
| JPS6280825A (ja) * | 1985-10-04 | 1987-04-14 | Sony Corp | 磁気記録媒体 |
| US4780354A (en) * | 1986-02-05 | 1988-10-25 | Tdk Corporation | Magnetic recording medium |
| US4770924A (en) * | 1986-07-02 | 1988-09-13 | Tdk Corporation | Magnetic recording medium |
| US5114778A (en) * | 1987-10-23 | 1992-05-19 | Fuji Photo Film Co., Ltd. | Magnetic recording medium |
| US5496618A (en) * | 1991-06-28 | 1996-03-05 | Teijin Limited | Polyester film for magnetic recording media, process for preparation thereof and magnetic recording medium |
| US5601768A (en) * | 1991-06-28 | 1997-02-11 | Teijin Limited | Process for preparation of a polyester film for magnetic recording media |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0547888B2 (enrdf_load_stackoverflow) | 1993-07-20 |
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