JPH0152815B2 - - Google Patents
Info
- Publication number
- JPH0152815B2 JPH0152815B2 JP56068105A JP6810581A JPH0152815B2 JP H0152815 B2 JPH0152815 B2 JP H0152815B2 JP 56068105 A JP56068105 A JP 56068105A JP 6810581 A JP6810581 A JP 6810581A JP H0152815 B2 JPH0152815 B2 JP H0152815B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- recording medium
- magnetic recording
- thin film
- magnetic
- 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
- 239000010408 film Substances 0.000 claims description 55
- 230000005291 magnetic effect Effects 0.000 claims description 45
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 27
- 239000010409 thin film Substances 0.000 claims description 24
- -1 polyethylene terephthalate Polymers 0.000 claims description 19
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 16
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 15
- 230000005294 ferromagnetic effect Effects 0.000 claims description 12
- 239000000314 lubricant Substances 0.000 claims description 10
- 230000003746 surface roughness Effects 0.000 claims description 9
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- AOBIOSPNXBMOAT-UHFFFAOYSA-N 2-[2-(oxiran-2-ylmethoxy)ethoxymethyl]oxirane Chemical compound C1OC1COCCOCC1CO1 AOBIOSPNXBMOAT-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 description 20
- 239000002245 particle Substances 0.000 description 18
- 238000004544 sputter deposition Methods 0.000 description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 10
- 239000000126 substance Substances 0.000 description 8
- 238000007740 vapor deposition Methods 0.000 description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000005415 magnetization Effects 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 150000002484 inorganic compounds Chemical class 0.000 description 5
- 229910010272 inorganic material Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 235000010216 calcium carbonate Nutrition 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000006068 polycondensation reaction Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000001771 vacuum deposition Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- 229910000599 Cr alloy Inorganic materials 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 235000011010 calcium phosphates Nutrition 0.000 description 2
- AAEHPKIXIIACPQ-UHFFFAOYSA-L calcium;terephthalate Chemical compound [Ca+2].[O-]C(=O)C1=CC=C(C([O-])=O)C=C1 AAEHPKIXIIACPQ-UHFFFAOYSA-L 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000007772 electroless plating Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000007733 ion plating Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000005809 transesterification reaction Methods 0.000 description 2
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 2
- 238000007738 vacuum evaporation Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- MMINFSMURORWKH-UHFFFAOYSA-N 3,6-dioxabicyclo[6.2.2]dodeca-1(10),8,11-triene-2,7-dione Chemical group O=C1OCCOC(=O)C2=CC=C1C=C2 MMINFSMURORWKH-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229910018104 Ni-P Inorganic materials 0.000 description 1
- 229910018536 Ni—P Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy 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
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 239000000404 calcium aluminium silicate Substances 0.000 description 1
- 235000012215 calcium aluminium silicate Nutrition 0.000 description 1
- 229940078583 calcium aluminosilicate Drugs 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920005570 flexible polymer Polymers 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 235000012245 magnesium oxide Nutrition 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910000815 supermalloy Inorganic materials 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 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
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
Landscapes
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Lubricants (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Magnetic Record Carriers (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56068105A JPS57195321A (en) | 1981-05-08 | 1981-05-08 | Metallic thin film magnetic recording medium |
| EP82102671A EP0061769B1 (en) | 1981-03-30 | 1982-03-30 | Magnetic recording medium |
| DE8282102671T DE3275959D1 (en) | 1981-03-30 | 1982-03-30 | Magnetic recording medium |
| US06/570,435 US4505966A (en) | 1981-03-30 | 1984-01-16 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56068105A JPS57195321A (en) | 1981-05-08 | 1981-05-08 | Metallic thin film magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57195321A JPS57195321A (en) | 1982-12-01 |
| JPH0152815B2 true JPH0152815B2 (ko) | 1989-11-10 |
Family
ID=13364120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56068105A Granted JPS57195321A (en) | 1981-03-30 | 1981-05-08 | Metallic thin film magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57195321A (ko) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3370710D1 (en) * | 1982-11-19 | 1987-05-07 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
| JP2646522B2 (ja) * | 1983-03-28 | 1997-08-27 | 東レ株式会社 | 積層フイルム |
| JPS60127523A (ja) * | 1983-12-14 | 1985-07-08 | Toray Ind Inc | 高密度記録媒体用ベ−スフイルム |
| JPS60191430A (ja) * | 1984-03-09 | 1985-09-28 | Diafoil Co Ltd | 磁気記録媒体 |
| JPH0677308B2 (ja) * | 1984-06-19 | 1994-09-28 | 東レ株式会社 | 磁気記録媒体用ポリエステルフイルム |
| JPH0679844B2 (ja) * | 1986-06-11 | 1994-10-12 | 東レ株式会社 | 磁気記録媒体用ポリエステルフイルムならびにその製造方法 |
| JPH01247162A (ja) * | 1988-03-29 | 1989-10-03 | Toray Ind Inc | 高密度記録媒体用ベースフィルム |
| JP2001243616A (ja) | 1999-12-24 | 2001-09-07 | Toray Ind Inc | 磁気記録媒体用ポリエステルフィルムおよび磁気記録テープ |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4974910A (ko) * | 1972-11-20 | 1974-07-19 | ||
| JPS50147309A (ko) * | 1974-05-15 | 1975-11-26 | ||
| JPS5228304A (en) * | 1975-08-28 | 1977-03-03 | Fuji Photo Film Co Ltd | Magnetic recording media |
| JPS5284264A (en) * | 1976-01-07 | 1977-07-13 | Toray Ind Inc | Pulyester film with improved surface characteristics |
| JPS5341355A (en) * | 1976-09-29 | 1978-04-14 | Toray Ind Inc | Biaxilialy streched polyester film |
| JPS53128683A (en) * | 1977-04-15 | 1978-11-09 | Toray Ind Inc | Polyester film having modified surface |
| JPS5415979A (en) * | 1977-07-06 | 1979-02-06 | Teijin Ltd | Polyester film |
| JPS5417981A (en) * | 1977-07-11 | 1979-02-09 | Teijin Ltd | Oriented polyester film for photosensive recorder |
| JPS5435267A (en) * | 1977-08-24 | 1979-03-15 | Matsushita Electric Ind Co Ltd | Juicer |
| JPS5440883A (en) * | 1977-09-06 | 1979-03-31 | Toray Ind Inc | Polyester film |
| JPS5494574A (en) * | 1978-01-09 | 1979-07-26 | Toray Ind Inc | Polyester film with improved surface |
| JPS54123923A (en) * | 1978-03-17 | 1979-09-26 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
| JPS5515770A (en) * | 1978-07-21 | 1980-02-04 | Kawakami Kagaku Kogyo Kk | Beverage capable of changing its color tone instantaneously, and its container |
-
1981
- 1981-05-08 JP JP56068105A patent/JPS57195321A/ja active Granted
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4974910A (ko) * | 1972-11-20 | 1974-07-19 | ||
| JPS50147309A (ko) * | 1974-05-15 | 1975-11-26 | ||
| JPS5228304A (en) * | 1975-08-28 | 1977-03-03 | Fuji Photo Film Co Ltd | Magnetic recording media |
| JPS5284264A (en) * | 1976-01-07 | 1977-07-13 | Toray Ind Inc | Pulyester film with improved surface characteristics |
| JPS5341355A (en) * | 1976-09-29 | 1978-04-14 | Toray Ind Inc | Biaxilialy streched polyester film |
| JPS53128683A (en) * | 1977-04-15 | 1978-11-09 | Toray Ind Inc | Polyester film having modified surface |
| JPS5415979A (en) * | 1977-07-06 | 1979-02-06 | Teijin Ltd | Polyester film |
| JPS5417981A (en) * | 1977-07-11 | 1979-02-09 | Teijin Ltd | Oriented polyester film for photosensive recorder |
| JPS5435267A (en) * | 1977-08-24 | 1979-03-15 | Matsushita Electric Ind Co Ltd | Juicer |
| JPS5440883A (en) * | 1977-09-06 | 1979-03-31 | Toray Ind Inc | Polyester film |
| JPS5494574A (en) * | 1978-01-09 | 1979-07-26 | Toray Ind Inc | Polyester film with improved surface |
| US4233352A (en) * | 1978-01-09 | 1980-11-11 | Toray Industries, Inc. | Polyester film and method of manufacture thereof |
| JPS54123923A (en) * | 1978-03-17 | 1979-09-26 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
| JPS5515770A (en) * | 1978-07-21 | 1980-02-04 | Kawakami Kagaku Kogyo Kk | Beverage capable of changing its color tone instantaneously, and its container |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57195321A (en) | 1982-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4505966A (en) | Magnetic recording medium | |
| US4670319A (en) | Polyester film for magnetic recording media | |
| EP0245883A2 (en) | Polyester film for magnetic recording medium | |
| EP0916484B1 (en) | Lowly electrifiable composite polyester film | |
| JPH0152815B2 (ko) | ||
| JPH0347191B2 (ko) | ||
| JPH0152818B2 (ko) | ||
| EP0845491B1 (en) | Laminate film | |
| KR100224137B1 (ko) | 적층 필름 및 그것을 사용하는 자기 기록 매체 | |
| JP3195219B2 (ja) | 積層フイルム | |
| JPS59195322A (ja) | 磁気デイスク | |
| JPH0152814B2 (ko) | ||
| US6936331B2 (en) | Polyester film and recording tape | |
| JP2953060B2 (ja) | 高密度磁気記録媒体 | |
| JPH0127486B2 (ko) | ||
| JPH0152816B2 (ko) | ||
| JP3626587B2 (ja) | 磁気記録媒体用ポリエステルフイルム | |
| JPH0149116B2 (ko) | ||
| JPH0766511B2 (ja) | 磁気記録媒体 | |
| JPH0513324B2 (ko) | ||
| JPS6079518A (ja) | 磁気記録媒体 | |
| JP3288940B2 (ja) | 磁気記録媒体用積層フイルム | |
| JPS6333286B2 (ko) | ||
| JPH0334127B2 (ko) | ||
| JPS6126924A (ja) | 磁気記録媒体 |