JPS57113418A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS57113418A JPS57113418A JP981A JP981A JPS57113418A JP S57113418 A JPS57113418 A JP S57113418A JP 981 A JP981 A JP 981A JP 981 A JP981 A JP 981A JP S57113418 A JPS57113418 A JP S57113418A
- Authority
- JP
- Japan
- Prior art keywords
- base
- vacuum
- projections
- recording medium
- magnetic recording
- 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 abstract 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- 230000003746 surface roughness Effects 0.000 abstract 2
- 229910000531 Co alloy Inorganic materials 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 235000010216 calcium carbonate Nutrition 0.000 abstract 1
- 239000001506 calcium phosphate Substances 0.000 abstract 1
- 229910000389 calcium phosphate Inorganic materials 0.000 abstract 1
- 235000011010 calcium phosphates Nutrition 0.000 abstract 1
- 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 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- 230000005294 ferromagnetic effect Effects 0.000 abstract 1
- 150000002484 inorganic compounds Chemical class 0.000 abstract 1
- 229910010272 inorganic material Inorganic materials 0.000 abstract 1
- 238000004898 kneading Methods 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 229920006267 polyester film Polymers 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
- 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 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 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
- G11B5/851—Coating a support with a magnetic layer by sputtering
Landscapes
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP981A JPS57113418A (en) | 1981-01-05 | 1981-01-05 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP981A JPS57113418A (en) | 1981-01-05 | 1981-01-05 | Magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57113418A true JPS57113418A (en) | 1982-07-14 |
| JPH0152818B2 JPH0152818B2 (enrdf_load_stackoverflow) | 1989-11-10 |
Family
ID=11462453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP981A Granted JPS57113418A (en) | 1981-01-05 | 1981-01-05 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57113418A (enrdf_load_stackoverflow) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6079518A (ja) * | 1983-10-06 | 1985-05-07 | Teijin Ltd | 磁気記録媒体 |
| JPS60113319A (ja) * | 1983-11-25 | 1985-06-19 | Teijin Ltd | 垂直磁気記録媒体 |
| JPS6168727A (ja) * | 1984-09-12 | 1986-04-09 | Teijin Ltd | 二軸延伸ポリエステルフイルム |
| JPS61184714A (ja) * | 1985-02-13 | 1986-08-18 | Nec Corp | 磁気記録媒体 |
| JPS6222235A (ja) * | 1985-07-23 | 1987-01-30 | Teijin Ltd | 磁気記録用テ−プ |
| JPS6277923A (ja) * | 1985-10-01 | 1987-04-10 | Teijin Ltd | 磁気記録用ポリエステルフイルム |
| JPH02141920A (ja) * | 1988-11-22 | 1990-05-31 | Matsushita Electric Ind Co Ltd | 磁気記録媒体 |
| JP2008124259A (ja) * | 2006-11-13 | 2008-05-29 | Kitagawa Ind Co Ltd | 電磁波シールド筐体 |
| US7627875B2 (en) | 2003-09-11 | 2009-12-01 | Sony Corporation | Disk drive |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JPS5421306A (en) * | 1977-07-19 | 1979-02-17 | Fuji Photo Film Co Ltd | Magnetic recording media |
| JPS5494574A (en) * | 1978-01-09 | 1979-07-26 | Toray Ind Inc | Polyester film with improved surface |
| JPS5517851A (en) * | 1978-07-21 | 1980-02-07 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
-
1981
- 1981-01-05 JP JP981A patent/JPS57113418A/ja active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JPS5421306A (en) * | 1977-07-19 | 1979-02-17 | Fuji Photo Film Co Ltd | Magnetic recording media |
| JPS5494574A (en) * | 1978-01-09 | 1979-07-26 | Toray Ind Inc | Polyester film with improved surface |
| JPS5517851A (en) * | 1978-07-21 | 1980-02-07 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6079518A (ja) * | 1983-10-06 | 1985-05-07 | Teijin Ltd | 磁気記録媒体 |
| JPS60113319A (ja) * | 1983-11-25 | 1985-06-19 | Teijin Ltd | 垂直磁気記録媒体 |
| JPS6168727A (ja) * | 1984-09-12 | 1986-04-09 | Teijin Ltd | 二軸延伸ポリエステルフイルム |
| JPS61184714A (ja) * | 1985-02-13 | 1986-08-18 | Nec Corp | 磁気記録媒体 |
| JPS6222235A (ja) * | 1985-07-23 | 1987-01-30 | Teijin Ltd | 磁気記録用テ−プ |
| JPS6277923A (ja) * | 1985-10-01 | 1987-04-10 | Teijin Ltd | 磁気記録用ポリエステルフイルム |
| JPH02141920A (ja) * | 1988-11-22 | 1990-05-31 | Matsushita Electric Ind Co Ltd | 磁気記録媒体 |
| US7627875B2 (en) | 2003-09-11 | 2009-12-01 | Sony Corporation | Disk drive |
| US7665100B2 (en) | 2003-09-11 | 2010-02-16 | Sony Corporation | Disk drive |
| JP2008124259A (ja) * | 2006-11-13 | 2008-05-29 | Kitagawa Ind Co Ltd | 電磁波シールド筐体 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0152818B2 (enrdf_load_stackoverflow) | 1989-11-10 |
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