US20140363700A1 - Magnetic recording medium - Google Patents
Magnetic recording medium Download PDFInfo
- Publication number
- US20140363700A1 US20140363700A1 US14/289,762 US201414289762A US2014363700A1 US 20140363700 A1 US20140363700 A1 US 20140363700A1 US 201414289762 A US201414289762 A US 201414289762A US 2014363700 A1 US2014363700 A1 US 2014363700A1
- Authority
- US
- United States
- Prior art keywords
- layer
- magnetic recording
- recording medium
- magnetic
- indicates
- 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.)
- Abandoned
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 189
- 239000000758 substrate Substances 0.000 claims abstract description 35
- 230000005415 magnetization Effects 0.000 claims abstract description 27
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims description 28
- 229910045601 alloy Inorganic materials 0.000 claims description 25
- 239000000956 alloy Substances 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 230000008018 melting Effects 0.000 claims description 23
- 238000002844 melting Methods 0.000 claims description 23
- 229910052804 chromium Inorganic materials 0.000 claims description 22
- 229910052719 titanium Inorganic materials 0.000 claims description 16
- 230000004913 activation Effects 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims 1
- 229910052906 cristobalite Inorganic materials 0.000 claims 1
- 229910052682 stishovite Inorganic materials 0.000 claims 1
- 229910052905 tridymite Inorganic materials 0.000 claims 1
- 239000010410 layer Substances 0.000 description 246
- 239000007789 gas Substances 0.000 description 69
- 239000010408 film Substances 0.000 description 57
- 239000000463 material Substances 0.000 description 34
- 238000004544 sputter deposition Methods 0.000 description 30
- 229910010169 TiCr Inorganic materials 0.000 description 29
- 238000000034 method Methods 0.000 description 29
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- 230000000052 comparative effect Effects 0.000 description 25
- 238000005516 engineering process Methods 0.000 description 22
- 241000894007 species Species 0.000 description 17
- 230000003247 decreasing effect Effects 0.000 description 16
- 229910019222 CoCrPt Inorganic materials 0.000 description 15
- 239000011241 protective layer Substances 0.000 description 15
- 238000011156 evaluation Methods 0.000 description 13
- 238000001755 magnetron sputter deposition Methods 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 10
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 9
- 239000000314 lubricant Substances 0.000 description 8
- 229910044991 metal oxide Inorganic materials 0.000 description 8
- 150000004706 metal oxides Chemical class 0.000 description 8
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 7
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 6
- 238000002003 electron diffraction Methods 0.000 description 6
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- 239000002356 single layer Substances 0.000 description 6
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
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- 229910052759 nickel Inorganic materials 0.000 description 4
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- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 3
- LDXJRKWFNNFDSA-UHFFFAOYSA-N 2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]ethanone Chemical compound C1CN(CC2=NNN=C21)CC(=O)N3CCN(CC3)C4=CN=C(N=C4)NCC5=CC(=CC=C5)OC(F)(F)F LDXJRKWFNNFDSA-UHFFFAOYSA-N 0.000 description 3
- 229910000684 Cobalt-chrome Inorganic materials 0.000 description 3
- 229910000929 Ru alloy Inorganic materials 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 3
- JAWMENYCRQKKJY-UHFFFAOYSA-N [3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-ylmethyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl]-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]methanone Chemical compound N1N=NC=2CN(CCC=21)CC1=NOC2(C1)CCN(CC2)C(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F JAWMENYCRQKKJY-UHFFFAOYSA-N 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000010952 cobalt-chrome Substances 0.000 description 3
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- 239000007769 metal material Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 229910000943 NiAl Inorganic materials 0.000 description 2
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 2
- 238000003917 TEM image Methods 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- 125000001475 halogen functional group Chemical group 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 1
- DEXFNLNNUZKHNO-UHFFFAOYSA-N 6-[3-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-3-oxopropyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)C(CCC1=CC2=C(NC(O2)=O)C=C1)=O DEXFNLNNUZKHNO-UHFFFAOYSA-N 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 229910010067 TiC2 Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- FHKPLLOSJHHKNU-INIZCTEOSA-N [(3S)-3-[8-(1-ethyl-5-methylpyrazol-4-yl)-9-methylpurin-6-yl]oxypyrrolidin-1-yl]-(oxan-4-yl)methanone Chemical compound C(C)N1N=CC(=C1C)C=1N(C2=NC=NC(=C2N=1)O[C@@H]1CN(CC1)C(=O)C1CCOCC1)C FHKPLLOSJHHKNU-INIZCTEOSA-N 0.000 description 1
- 230000004075 alteration Effects 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
- 230000008901 benefit Effects 0.000 description 1
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- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(II) oxide Inorganic materials [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
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- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(IV) oxide Inorganic materials O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
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- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
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- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
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- 230000035945 sensitivity Effects 0.000 description 1
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- 239000002344 surface layer Substances 0.000 description 1
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
Images
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
-
- G11B5/732—
-
- 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
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/658—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing oxygen, e.g. molecular oxygen or magnetic oxide
-
- G11B5/7325—
-
- 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
- G11B5/7379—Seed layer, e.g. at least one non-magnetic layer is specifically adapted as a seed or seeding 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
- G11B5/73—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
-
- 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
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
- G11B5/78—Tape carriers
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/208,932 US10424329B2 (en) | 2013-06-05 | 2016-07-13 | Magnetic recording medium |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013119187A JP6205871B2 (ja) | 2013-06-05 | 2013-06-05 | 磁気記録媒体 |
| JP2013-119187 | 2013-06-05 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US15/208,932 Continuation US10424329B2 (en) | 2013-06-05 | 2016-07-13 | Magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20140363700A1 true US20140363700A1 (en) | 2014-12-11 |
Family
ID=52005719
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US14/289,762 Abandoned US20140363700A1 (en) | 2013-06-05 | 2014-05-29 | Magnetic recording medium |
| US15/208,932 Active US10424329B2 (en) | 2013-06-05 | 2016-07-13 | Magnetic recording medium |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US15/208,932 Active US10424329B2 (en) | 2013-06-05 | 2016-07-13 | Magnetic recording medium |
Country Status (3)
| Country | Link |
|---|---|
| US (2) | US20140363700A1 (ja) |
| JP (1) | JP6205871B2 (ja) |
| CN (1) | CN104240728B (ja) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10311908B2 (en) | 2013-05-01 | 2019-06-04 | Sony Corporation | Magnetic recording medium |
| US10424329B2 (en) | 2013-06-05 | 2019-09-24 | Sony Corporation | Magnetic recording medium |
| US10803897B2 (en) | 2013-10-22 | 2020-10-13 | Sony Corporation | Magnetic recording medium |
| US11423936B2 (en) | 2013-05-17 | 2022-08-23 | Sony Corporation | Magnetic recording medium and method of producing the same |
| US11437066B2 (en) * | 2018-03-30 | 2022-09-06 | Sony Corporation | Magnetic recording tape and magnetic recording tape cartridge |
| US11451211B2 (en) * | 2016-03-11 | 2022-09-20 | Murata Manufacturing Co., Ltd. | Gallium nitride structure, piezoelectric element, method of manufacturing piezoelectric element, and resonator using piezoelectric element |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021199453A1 (ja) * | 2020-03-31 | 2021-10-07 | ソニーグループ株式会社 | 磁気記録媒体 |
| DE112020007016T5 (de) * | 2020-03-31 | 2023-01-19 | Sony Group Corporation | Magnetisches aufzeichnungsmedium |
| US11776572B2 (en) * | 2021-11-16 | 2023-10-03 | Western Digital Technologies, Inc. | Magnetic tape having alternating sections for use in ultra-high areal density tape storage systems |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050255337A1 (en) * | 2004-05-13 | 2005-11-17 | Fujitsu Limited | Perpendicular magnetic recording medium, method of producing the same, and magnetic storage device |
| US20060057430A1 (en) * | 2004-09-09 | 2006-03-16 | Fuji Electric Device Technology Co., Ltd. | Perpendicular magnetic recording medium |
| US20080199733A1 (en) * | 2005-03-17 | 2008-08-21 | Showa Denko K.K. | Production Process of Magnetic Recording Medium, Magnetic Recording Medium, and Magnetic Recording and Reproducing Apparatus |
| US20110111257A1 (en) * | 2007-08-31 | 2011-05-12 | Showa Denko K.K. | Magnetic recording medium and magnetic recording and reproducing apparatus |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2834392B2 (ja) * | 1993-06-23 | 1998-12-09 | ストアメディア インコーポレーテッド | 金属薄膜型磁気記録媒体とその製造方法 |
| SG118182A1 (en) * | 2002-03-19 | 2006-01-27 | Fuji Electric Co Ltd | Method for producing a magnetic recording medium and a magnetic recording medium produced by the method |
| JP2005043629A (ja) * | 2003-07-28 | 2005-02-17 | Ricoh Co Ltd | クリーニング装置および画像形成装置 |
| JP2005196885A (ja) * | 2004-01-08 | 2005-07-21 | Sony Corp | 磁気記録媒体 |
| CN101138025B (zh) * | 2005-03-17 | 2010-05-19 | 昭和电工株式会社 | 磁记录介质的制造方法、磁记录介质、以及磁记录和再现装置 |
| CN101042881A (zh) * | 2006-03-24 | 2007-09-26 | 富士通株式会社 | 磁记录介质及其制作方法 |
| JP2009015959A (ja) * | 2007-07-04 | 2009-01-22 | Toshiba Corp | 垂直磁気記録媒体および磁気記録再生装置 |
| JP2009229012A (ja) * | 2008-03-24 | 2009-10-08 | Daikin Ind Ltd | 冷凍装置 |
| JP2009289360A (ja) * | 2008-05-30 | 2009-12-10 | Fujitsu Ltd | 垂直磁気記録媒体及び磁気記憶装置 |
| JP5569111B2 (ja) | 2009-06-23 | 2014-08-13 | ソニー株式会社 | 磁気記録媒体およびその製造方法 |
| JP6186859B2 (ja) | 2013-05-01 | 2017-08-30 | ソニー株式会社 | 磁気記録媒体 |
| JP6307879B2 (ja) | 2013-05-17 | 2018-04-11 | ソニー株式会社 | 磁気記録媒体およびその製造方法 |
| JP6205871B2 (ja) | 2013-06-05 | 2017-10-04 | ソニー株式会社 | 磁気記録媒体 |
| JP6318540B2 (ja) | 2013-10-22 | 2018-05-09 | ソニー株式会社 | 磁気記録媒体 |
-
2013
- 2013-06-05 JP JP2013119187A patent/JP6205871B2/ja active Active
-
2014
- 2014-05-29 US US14/289,762 patent/US20140363700A1/en not_active Abandoned
- 2014-05-29 CN CN201410234952.XA patent/CN104240728B/zh active Active
-
2016
- 2016-07-13 US US15/208,932 patent/US10424329B2/en active Active
Patent Citations (4)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10311908B2 (en) | 2013-05-01 | 2019-06-04 | Sony Corporation | Magnetic recording medium |
| US11423936B2 (en) | 2013-05-17 | 2022-08-23 | Sony Corporation | Magnetic recording medium and method of producing the same |
| US10424329B2 (en) | 2013-06-05 | 2019-09-24 | Sony Corporation | Magnetic recording medium |
| US10803897B2 (en) | 2013-10-22 | 2020-10-13 | Sony Corporation | Magnetic recording medium |
| US11430477B2 (en) | 2013-10-22 | 2022-08-30 | Sony Corporation | Magnetic recording medium |
| US11451211B2 (en) * | 2016-03-11 | 2022-09-20 | Murata Manufacturing Co., Ltd. | Gallium nitride structure, piezoelectric element, method of manufacturing piezoelectric element, and resonator using piezoelectric element |
| US11437066B2 (en) * | 2018-03-30 | 2022-09-06 | Sony Corporation | Magnetic recording tape and magnetic recording tape cartridge |
Also Published As
| Publication number | Publication date |
|---|---|
| US10424329B2 (en) | 2019-09-24 |
| US20170069343A1 (en) | 2017-03-09 |
| JP2014235771A (ja) | 2014-12-15 |
| JP6205871B2 (ja) | 2017-10-04 |
| CN104240728A (zh) | 2014-12-24 |
| CN104240728B (zh) | 2019-01-15 |
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| AS | Assignment |
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