CN101866655B - 磁盘用润滑剂化合物、磁盘及其制造方法 - Google Patents
磁盘用润滑剂化合物、磁盘及其制造方法 Download PDFInfo
- Publication number
- CN101866655B CN101866655B CN201010213932.6A CN201010213932A CN101866655B CN 101866655 B CN101866655 B CN 101866655B CN 201010213932 A CN201010213932 A CN 201010213932A CN 101866655 B CN101866655 B CN 101866655B
- Authority
- CN
- China
- Prior art keywords
- disk
- lubricant
- compound
- lubricating layer
- protective seam
- 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 - Fee Related
Links
- 239000000314 lubricant Substances 0.000 title claims abstract description 169
- 150000001875 compounds Chemical class 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 230000001050 lubricating effect Effects 0.000 claims abstract description 85
- 230000001681 protective effect Effects 0.000 claims abstract description 81
- 125000003118 aryl group Chemical group 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 17
- 230000005855 radiation Effects 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000005268 plasma chemical vapour deposition Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 5
- -1 anilino- Chemical class 0.000 claims description 4
- 238000011068 loading method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 3
- 125000004957 naphthylene group Chemical group 0.000 claims description 3
- 125000002529 biphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C12)* 0.000 claims description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 2
- XKJCHHZQLQNZHY-UHFFFAOYSA-N phthalimide Chemical compound C1=CC=C2C(=O)NC(=O)C2=C1 XKJCHHZQLQNZHY-UHFFFAOYSA-N 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 107
- 230000005291 magnetic effect Effects 0.000 description 89
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 67
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 19
- 229910052782 aluminium Inorganic materials 0.000 description 19
- 239000004411 aluminium Substances 0.000 description 19
- 230000003993 interaction Effects 0.000 description 17
- 230000003647 oxidation Effects 0.000 description 17
- 238000007254 oxidation reaction Methods 0.000 description 17
- 230000015572 biosynthetic process Effects 0.000 description 14
- 230000009471 action Effects 0.000 description 11
- 230000003287 optical effect Effects 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 230000002159 abnormal effect Effects 0.000 description 8
- 239000002131 composite material Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 8
- 230000005294 ferromagnetic effect Effects 0.000 description 8
- 239000010702 perfluoropolyether Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- DGXAGETVRDOQFP-UHFFFAOYSA-N 2,6-dihydroxybenzaldehyde Chemical compound OC1=CC=CC(O)=C1C=O DGXAGETVRDOQFP-UHFFFAOYSA-N 0.000 description 7
- 238000000354 decomposition reaction Methods 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 238000000194 supercritical-fluid extraction Methods 0.000 description 7
- 238000003618 dip coating Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 125000001153 fluoro group Chemical class F* 0.000 description 5
- 230000001172 regenerating effect Effects 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000002411 thermogravimetry Methods 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 239000002841 Lewis acid Substances 0.000 description 3
- 238000005227 gel permeation chromatography Methods 0.000 description 3
- 230000009878 intermolecular interaction Effects 0.000 description 3
- 150000007517 lewis acids Chemical class 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000700 radioactive tracer Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 239000005354 aluminosilicate glass Substances 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000016507 interphase Effects 0.000 description 2
- 230000008863 intramolecular interaction Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 239000002362 mulch Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010189 synthetic method Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- KZMAWJRXKGLWGS-UHFFFAOYSA-N 2-chloro-n-[4-(4-methoxyphenyl)-1,3-thiazol-2-yl]-n-(3-methoxypropyl)acetamide Chemical compound S1C(N(C(=O)CCl)CCCOC)=NC(C=2C=CC(OC)=CC=2)=C1 KZMAWJRXKGLWGS-UHFFFAOYSA-N 0.000 description 1
- 229910001149 41xx steel Inorganic materials 0.000 description 1
- 229910019222 CoCrPt Inorganic materials 0.000 description 1
- 229910018979 CoPt Inorganic materials 0.000 description 1
- 229910019586 CoZrTa Inorganic materials 0.000 description 1
- 229910002555 FeNi Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000943 NiAl Inorganic materials 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010998 test method 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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/8408—Processes or apparatus specially adapted for manufacturing record carriers protecting the magnetic layer
-
- 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
Landscapes
- Lubricants (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
Description
Claims (9)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009080430 | 2009-03-27 | ||
JP2009-080430 | 2009-03-27 | ||
JP2010067387A JP2010250929A (ja) | 2009-03-27 | 2010-03-24 | 磁気ディスク用潤滑剤化合物、磁気ディスク及びその製造方法 |
JP2010-067387 | 2010-03-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101866655A CN101866655A (zh) | 2010-10-20 |
CN101866655B true CN101866655B (zh) | 2016-01-06 |
Family
ID=42783933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201010213932.6A Expired - Fee Related CN101866655B (zh) | 2009-03-27 | 2010-03-26 | 磁盘用润滑剂化合物、磁盘及其制造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8492011B2 (zh) |
JP (1) | JP2010250929A (zh) |
CN (1) | CN101866655B (zh) |
HK (1) | HK1149843A1 (zh) |
SG (1) | SG165271A1 (zh) |
Families Citing this family (75)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5117895B2 (ja) | 2008-03-17 | 2013-01-16 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | 磁気記録媒体及びその製造方法 |
JP2009238299A (ja) | 2008-03-26 | 2009-10-15 | Hoya Corp | 垂直磁気記録媒体および垂直磁気記録媒体の製造方法 |
JP5453666B2 (ja) | 2008-03-30 | 2014-03-26 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | 磁気ディスク及びその製造方法 |
WO2010038773A1 (ja) | 2008-09-30 | 2010-04-08 | Hoya株式会社 | 磁気ディスク及びその製造方法 |
WO2010064724A1 (ja) | 2008-12-05 | 2010-06-10 | Hoya株式会社 | 磁気ディスク及びその製造方法 |
JP5623048B2 (ja) | 2009-03-25 | 2014-11-12 | 富士フイルム株式会社 | 潤滑剤組成物、及びその用途 |
US9558778B2 (en) | 2009-03-28 | 2017-01-31 | Wd Media (Singapore) Pte. Ltd. | Lubricant compound for magnetic disk and magnetic disk |
SG165294A1 (en) | 2009-03-30 | 2010-10-28 | Wd Media Singapore Pte Ltd | Perpendicular magnetic recording medium and method of manufacturing the same |
US20100300884A1 (en) | 2009-05-26 | 2010-12-02 | Wd Media, Inc. | Electro-deposited passivation coatings for patterned media |
US9330685B1 (en) | 2009-11-06 | 2016-05-03 | WD Media, LLC | Press system for nano-imprinting of recording media with a two step pressing method |
US8496466B1 (en) | 2009-11-06 | 2013-07-30 | WD Media, LLC | Press system with interleaved embossing foil holders for nano-imprinting of recording media |
JP5643516B2 (ja) | 2010-01-08 | 2014-12-17 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | 垂直磁気記録媒体 |
JP5574414B2 (ja) | 2010-03-29 | 2014-08-20 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | 磁気ディスクの評価方法及び磁気ディスクの製造方法 |
JP5645476B2 (ja) | 2010-05-21 | 2014-12-24 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | 垂直磁気ディスク |
JP5634749B2 (ja) | 2010-05-21 | 2014-12-03 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | 垂直磁気ディスク |
JP2011248967A (ja) | 2010-05-28 | 2011-12-08 | Wd Media (Singapore) Pte. Ltd | 垂直磁気ディスクの製造方法 |
JP2011248969A (ja) | 2010-05-28 | 2011-12-08 | Wd Media (Singapore) Pte. Ltd | 垂直磁気ディスク |
JP2011248968A (ja) | 2010-05-28 | 2011-12-08 | Wd Media (Singapore) Pte. Ltd | 垂直磁気ディスク |
JP2012009086A (ja) | 2010-06-22 | 2012-01-12 | Wd Media (Singapore) Pte. Ltd | 垂直磁気記録媒体及びその製造方法 |
US8889275B1 (en) | 2010-08-20 | 2014-11-18 | WD Media, LLC | Single layer small grain size FePT:C film for heat assisted magnetic recording media |
JP5523377B2 (ja) * | 2011-03-07 | 2014-06-18 | 富士フイルム株式会社 | 潤滑剤組成物、フッ素化合物、及びその用途 |
US8743666B1 (en) | 2011-03-08 | 2014-06-03 | Western Digital Technologies, Inc. | Energy assisted magnetic recording medium capable of suppressing high DC readback noise |
US8711499B1 (en) | 2011-03-10 | 2014-04-29 | WD Media, LLC | Methods for measuring media performance associated with adjacent track interference |
US8491800B1 (en) | 2011-03-25 | 2013-07-23 | WD Media, LLC | Manufacturing of hard masks for patterning magnetic media |
US8685548B2 (en) * | 2011-03-31 | 2014-04-01 | Seagate Technology Llc | Lubricant compositions |
US9028985B2 (en) | 2011-03-31 | 2015-05-12 | WD Media, LLC | Recording media with multiple exchange coupled magnetic layers |
US8565050B1 (en) | 2011-12-20 | 2013-10-22 | WD Media, LLC | Heat assisted magnetic recording media having moment keeper layer |
US9029308B1 (en) | 2012-03-28 | 2015-05-12 | WD Media, LLC | Low foam media cleaning detergent |
US9269480B1 (en) | 2012-03-30 | 2016-02-23 | WD Media, LLC | Systems and methods for forming magnetic recording media with improved grain columnar growth for energy assisted magnetic recording |
US8941950B2 (en) | 2012-05-23 | 2015-01-27 | WD Media, LLC | Underlayers for heat assisted magnetic recording (HAMR) media |
US8993134B2 (en) | 2012-06-29 | 2015-03-31 | Western Digital Technologies, Inc. | Electrically conductive underlayer to grow FePt granular media with (001) texture on glass substrates |
US9487724B2 (en) | 2012-08-08 | 2016-11-08 | Agency For Science, Technology And Research | Lubricants for magnetic recording media |
JP5578215B2 (ja) | 2012-09-14 | 2014-08-27 | 富士電機株式会社 | 磁気記録媒体の製造方法 |
US9034492B1 (en) | 2013-01-11 | 2015-05-19 | WD Media, LLC | Systems and methods for controlling damping of magnetic media for heat assisted magnetic recording |
US10115428B1 (en) | 2013-02-15 | 2018-10-30 | Wd Media, Inc. | HAMR media structure having an anisotropic thermal barrier layer |
US9153268B1 (en) | 2013-02-19 | 2015-10-06 | WD Media, LLC | Lubricants comprising fluorinated graphene nanoribbons for magnetic recording media structure |
US9183867B1 (en) | 2013-02-21 | 2015-11-10 | WD Media, LLC | Systems and methods for forming implanted capping layers in magnetic media for magnetic recording |
US9196283B1 (en) | 2013-03-13 | 2015-11-24 | Western Digital (Fremont), Llc | Method for providing a magnetic recording transducer using a chemical buffer |
US9190094B2 (en) | 2013-04-04 | 2015-11-17 | Western Digital (Fremont) | Perpendicular recording media with grain isolation initiation layer and exchange breaking layer for signal-to-noise ratio enhancement |
US9093122B1 (en) | 2013-04-05 | 2015-07-28 | WD Media, LLC | Systems and methods for improving accuracy of test measurements involving aggressor tracks written to disks of hard disk drives |
US8947987B1 (en) | 2013-05-03 | 2015-02-03 | WD Media, LLC | Systems and methods for providing capping layers for heat assisted magnetic recording media |
US8867322B1 (en) | 2013-05-07 | 2014-10-21 | WD Media, LLC | Systems and methods for providing thermal barrier bilayers for heat assisted magnetic recording media |
US9296082B1 (en) | 2013-06-11 | 2016-03-29 | WD Media, LLC | Disk buffing apparatus with abrasive tape loading pad having a vibration absorbing layer |
US9406330B1 (en) | 2013-06-19 | 2016-08-02 | WD Media, LLC | Method for HDD disk defect source detection |
US9607646B2 (en) | 2013-07-30 | 2017-03-28 | WD Media, LLC | Hard disk double lubrication layer |
US9389135B2 (en) | 2013-09-26 | 2016-07-12 | WD Media, LLC | Systems and methods for calibrating a load cell of a disk burnishing machine |
US9177585B1 (en) | 2013-10-23 | 2015-11-03 | WD Media, LLC | Magnetic media capable of improving magnetic properties and thermal management for heat-assisted magnetic recording |
US9581510B1 (en) | 2013-12-16 | 2017-02-28 | Western Digital Technologies, Inc. | Sputter chamber pressure gauge with vibration absorber |
US9382496B1 (en) | 2013-12-19 | 2016-07-05 | Western Digital Technologies, Inc. | Lubricants with high thermal stability for heat-assisted magnetic recording |
US9824711B1 (en) | 2014-02-14 | 2017-11-21 | WD Media, LLC | Soft underlayer for heat assisted magnetic recording media |
US9447368B1 (en) | 2014-02-18 | 2016-09-20 | WD Media, LLC | Detergent composition with low foam and high nickel solubility |
US9431045B1 (en) | 2014-04-25 | 2016-08-30 | WD Media, LLC | Magnetic seed layer used with an unbalanced soft underlayer |
EP3143107B1 (en) * | 2014-05-16 | 2022-05-11 | Solvay Specialty Polymers Italy S.p.A. | Aromatic compounds bearing hydroxyl-substituted (per)fluoropolyether chains |
US9042053B1 (en) | 2014-06-24 | 2015-05-26 | WD Media, LLC | Thermally stabilized perpendicular magnetic recording medium |
US9159350B1 (en) | 2014-07-02 | 2015-10-13 | WD Media, LLC | High damping cap layer for magnetic recording media |
US10054363B2 (en) | 2014-08-15 | 2018-08-21 | WD Media, LLC | Method and apparatus for cryogenic dynamic cooling |
US9765273B2 (en) * | 2014-09-08 | 2017-09-19 | Western Digital Technologies, Inc. | Monodisperse lubricant including multidentate perfluoropolyether structures |
US9082447B1 (en) | 2014-09-22 | 2015-07-14 | WD Media, LLC | Determining storage media substrate material type |
US9227324B1 (en) | 2014-09-25 | 2016-01-05 | WD Media, LLC | Mandrel for substrate transport system with notch |
US8995078B1 (en) | 2014-09-25 | 2015-03-31 | WD Media, LLC | Method of testing a head for contamination |
US9685184B1 (en) | 2014-09-25 | 2017-06-20 | WD Media, LLC | NiFeX-based seed layer for magnetic recording media |
US9449633B1 (en) | 2014-11-06 | 2016-09-20 | WD Media, LLC | Smooth structures for heat-assisted magnetic recording media |
US9818442B2 (en) | 2014-12-01 | 2017-11-14 | WD Media, LLC | Magnetic media having improved magnetic grain size distribution and intergranular segregation |
US9401300B1 (en) | 2014-12-18 | 2016-07-26 | WD Media, LLC | Media substrate gripper including a plurality of snap-fit fingers |
US9218850B1 (en) | 2014-12-23 | 2015-12-22 | WD Media, LLC | Exchange break layer for heat-assisted magnetic recording media |
US9257134B1 (en) | 2014-12-24 | 2016-02-09 | Western Digital Technologies, Inc. | Allowing fast data zone switches on data storage devices |
US9990940B1 (en) | 2014-12-30 | 2018-06-05 | WD Media, LLC | Seed structure for perpendicular magnetic recording media |
US9280998B1 (en) | 2015-03-30 | 2016-03-08 | WD Media, LLC | Acidic post-sputter wash for magnetic recording media |
US9275669B1 (en) | 2015-03-31 | 2016-03-01 | WD Media, LLC | TbFeCo in PMR media for SNR improvement |
US9822441B2 (en) | 2015-03-31 | 2017-11-21 | WD Media, LLC | Iridium underlayer for heat assisted magnetic recording media |
MY178172A (en) * | 2015-07-31 | 2020-10-06 | Fuji Electric Malaysia Sdn Bhd | Ionic perfluoropolyether lubricant |
US11074934B1 (en) | 2015-09-25 | 2021-07-27 | Western Digital Technologies, Inc. | Heat assisted magnetic recording (HAMR) media with Curie temperature reduction layer |
US10236026B1 (en) | 2015-11-06 | 2019-03-19 | WD Media, LLC | Thermal barrier layers and seed layers for control of thermal and structural properties of HAMR media |
US9406329B1 (en) | 2015-11-30 | 2016-08-02 | WD Media, LLC | HAMR media structure with intermediate layer underlying a magnetic recording layer having multiple sublayers |
US10121506B1 (en) | 2015-12-29 | 2018-11-06 | WD Media, LLC | Magnetic-recording medium including a carbon overcoat implanted with nitrogen and hydrogen |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008038799A1 (fr) * | 2006-09-29 | 2008-04-03 | Hoya Corporation | Lubrifiant pour disque magnétique, procédé de fabrication afférent et disque magnétique |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3562431D1 (en) | 1984-02-01 | 1988-06-01 | Verbatim Corp | Process for applying a lubricative and protective coating on a flexible magnetic recording medium |
JPH0646441B2 (ja) | 1985-09-19 | 1994-06-15 | 日本電気株式会社 | 磁気記録媒体 |
JP2772896B2 (ja) * | 1991-11-07 | 1998-07-09 | 株式会社日立製作所 | カルボン酸アンモニウム塩を有する含フッ素化合物及び表面改質剤、これを用いた磁気記録媒体 |
JPH05225556A (ja) | 1991-12-16 | 1993-09-03 | Internatl Business Mach Corp <Ibm> | 保護膜を改良した磁気記録ディスク |
JPH08231455A (ja) * | 1994-12-14 | 1996-09-10 | Hitachi Maxell Ltd | トリブロック化合物、潤滑剤及び磁気記録媒体 |
US6238780B1 (en) * | 1998-04-16 | 2001-05-29 | Seagate Technology Llc | Magnetic recording medium comprising multilayered carbon-containing protective overcoats |
JP2001052328A (ja) * | 1999-08-03 | 2001-02-23 | Mitsubishi Chemicals Corp | 磁気記録媒体及び磁気記録装置 |
JP3665261B2 (ja) | 2000-09-01 | 2005-06-29 | 株式会社日立製作所 | 垂直磁気記録媒体および磁気記憶装置 |
JP2002265593A (ja) * | 2001-03-08 | 2002-09-18 | Sony Corp | フルオロポリアルキルエーテル系化合物、該化合物からなる潤滑剤および該潤滑剤を用いた記録媒体 |
JP2004030844A (ja) * | 2002-06-28 | 2004-01-29 | Sony Corp | 磁気記録媒体 |
JP2004348837A (ja) * | 2003-05-21 | 2004-12-09 | Sony Corp | 磁気記録媒体 |
JP2007213738A (ja) * | 2006-02-13 | 2007-08-23 | Hitachi Global Storage Technologies Netherlands Bv | 磁気ディスク及び磁気ディスク装置 |
JP2007284659A (ja) * | 2006-03-24 | 2007-11-01 | Fujitsu Ltd | 潤滑剤、磁気記録媒体およびヘッドスライダ |
US8039132B2 (en) | 2007-05-15 | 2011-10-18 | Moresco Corporation | Perfluoropolyether compound, and lubricant and magnetic disk each using the same |
EP2100909A1 (en) * | 2008-03-14 | 2009-09-16 | Solvay Solexis S.p.A. | (Per)fluorinated addition products |
JP4709256B2 (ja) * | 2008-07-30 | 2011-06-22 | 信越化学工業株式会社 | パーフルオロエーテル部含有ポリマー及び該ポリマーを含む面処理剤 |
-
2010
- 2010-03-24 JP JP2010067387A patent/JP2010250929A/ja active Pending
- 2010-03-26 US US12/732,945 patent/US8492011B2/en not_active Expired - Fee Related
- 2010-03-26 SG SG201002104-6A patent/SG165271A1/en unknown
- 2010-03-26 CN CN201010213932.6A patent/CN101866655B/zh not_active Expired - Fee Related
-
2011
- 2011-04-20 HK HK11104010.5A patent/HK1149843A1/zh not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008038799A1 (fr) * | 2006-09-29 | 2008-04-03 | Hoya Corporation | Lubrifiant pour disque magnétique, procédé de fabrication afférent et disque magnétique |
Also Published As
Publication number | Publication date |
---|---|
CN101866655A (zh) | 2010-10-20 |
HK1149843A1 (zh) | 2011-10-14 |
SG165271A1 (en) | 2010-10-28 |
US20100246064A1 (en) | 2010-09-30 |
US8492011B2 (en) | 2013-07-23 |
JP2010250929A (ja) | 2010-11-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101866655B (zh) | 磁盘用润滑剂化合物、磁盘及其制造方法 | |
US8846137B2 (en) | Method of manufacturing a magnetic disk | |
US8697262B2 (en) | Lubricant for magnetic disc, magnetic disc and method of producing the same | |
US8999533B2 (en) | Magnetic disk and method of manufacturing the same | |
JP5835874B2 (ja) | 磁気ディスクの製造方法 | |
US9558778B2 (en) | Lubricant compound for magnetic disk and magnetic disk | |
US9245568B2 (en) | Magnetic disk and method of manufacturing the same | |
US8178480B2 (en) | Lubricant for magnetic disk, process for producing the same, and magnetic disk | |
US10068603B2 (en) | Magnetic recording medium | |
US7833641B2 (en) | Magnetic disk | |
US20160055874A1 (en) | Magnetic disk and manufacturing method thereof | |
US20120196049A1 (en) | Manufacturing method of magnetic recording medium | |
US9005782B2 (en) | Magnetic disk and method of manufacturing the same | |
JP2001006155A (ja) | 磁気記録媒体およびその製造方法 | |
JP2019036370A (ja) | 磁気記録媒体、磁気記録媒体の製造方法および磁気記録再生装置 | |
JP2010086598A (ja) | 磁気ディスクの製造方法 | |
JP5484764B2 (ja) | 磁気ディスク用潤滑剤化合物及び磁気ディスク | |
JP6040074B2 (ja) | 磁気記録媒体の製造方法 | |
JP2004103074A (ja) | 磁気ディスクおよびその製造方法 | |
JP2002170220A (ja) | 磁気記録媒体およびその製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: HOYA MAGNETICS SINGAPORE PTE. LTD. Owner name: WESTERN DIGITAL MEDIA (SINGAPORE) CO., LTD. Free format text: FORMER OWNER: HOYA CORP. Effective date: 20110518 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: TOKYO, JAPAN TO: SINGAPORE, SINGAPORE |
|
TA01 | Transfer of patent application right |
Effective date of registration: 20110518 Address after: Singapore Singapore Applicant after: WD Media (Singapore) Pte. Ltd. Address before: Tokyo, Japan Applicant before: Hoya Corp. Co-applicant before: HOYA. Magnetics Singapore Pte. |
|
REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1149843 Country of ref document: HK |
|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1149843 Country of ref document: HK |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 |
|
CF01 | Termination of patent right due to non-payment of annual fee |