HK1003210A1 - Magnetic recording medium and method for producingthe same - Google Patents
Magnetic recording medium and method for producingthe sameInfo
- Publication number
- HK1003210A1 HK1003210A1 HK98102326A HK98102326A HK1003210A1 HK 1003210 A1 HK1003210 A1 HK 1003210A1 HK 98102326 A HK98102326 A HK 98102326A HK 98102326 A HK98102326 A HK 98102326A HK 1003210 A1 HK1003210 A1 HK 1003210A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- recording medium
- magnetic recording
- producingthe
- same
- producingthe same
- Prior art date
Links
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
- G11B5/72—Protective coatings, e.g. anti-static or antifriction
- G11B5/726—Two or more protective coatings
- G11B5/7262—Inorganic protective coating
- G11B5/7264—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
- G11B5/7266—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon comprising a lubricant over the inorganic carbon coating
-
- 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
-
- 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
- G11B5/72—Protective coatings, e.g. anti-static or antifriction
- G11B5/725—Protective coatings, e.g. anti-static or antifriction containing a lubricant, e.g. organic compounds
- G11B5/7253—Fluorocarbon lubricant
- G11B5/7257—Perfluoropolyether lubricant
-
- 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
- G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
-
- 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
- G11B5/8408—Processes or apparatus specially adapted for manufacturing record carriers protecting the magnetic layer
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5299683A JPH07153065A (ja) | 1993-11-30 | 1993-11-30 | 磁気記録媒体及びその製造方法 |
JP5299682A JPH07153064A (ja) | 1993-11-30 | 1993-11-30 | 磁気記録媒体及びその製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1003210A1 true HK1003210A1 (en) | 1998-10-16 |
Family
ID=26562035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK98102326A HK1003210A1 (en) | 1993-11-30 | 1998-03-19 | Magnetic recording medium and method for producingthe same |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0655733B1 (fr) |
KR (1) | KR100244059B1 (fr) |
DE (1) | DE69417157T2 (fr) |
HK (1) | HK1003210A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0883423A (ja) * | 1994-07-01 | 1996-03-26 | Hitachi Metals Ltd | 磁気ディスク |
US20010044028A1 (en) * | 1999-12-30 | 2001-11-22 | Anderson Jerrel Charles | Diamond-like carbon coated pet film and pet film glass laminate glazing structures for added hardness and abrasion resistance |
US9245565B2 (en) | 2013-06-14 | 2016-01-26 | HGST Netherlands B.V. | Magnetic recording medium lubricant mixture and systems thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60229233A (ja) * | 1984-04-27 | 1985-11-14 | Sumitomo Special Metals Co Ltd | 磁気ディスク用基板の製造方法 |
JPS63275040A (ja) * | 1987-05-07 | 1988-11-11 | Matsushita Electric Ind Co Ltd | 磁気記録媒体の製造方法 |
JPH02110827A (ja) * | 1988-10-20 | 1990-04-24 | Matsushita Electric Ind Co Ltd | 磁気記録媒体の製造方法 |
JPH06223356A (ja) * | 1992-12-03 | 1994-08-12 | Tdk Corp | 磁気記録媒体 |
-
1994
- 1994-11-19 DE DE69417157T patent/DE69417157T2/de not_active Expired - Fee Related
- 1994-11-19 EP EP94118248A patent/EP0655733B1/fr not_active Expired - Lifetime
- 1994-11-30 KR KR1019940032206A patent/KR100244059B1/ko not_active IP Right Cessation
-
1998
- 1998-03-19 HK HK98102326A patent/HK1003210A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0655733A1 (fr) | 1995-05-31 |
DE69417157D1 (de) | 1999-04-22 |
DE69417157T2 (de) | 1999-12-23 |
EP0655733B1 (fr) | 1999-03-17 |
KR100244059B1 (ko) | 2000-02-01 |
KR950015218A (ko) | 1995-06-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20031119 |
|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |