DE69317038T2 - Magnetischer Aufzeichnungsträger - Google Patents

Magnetischer Aufzeichnungsträger

Info

Publication number
DE69317038T2
DE69317038T2 DE69317038T DE69317038T DE69317038T2 DE 69317038 T2 DE69317038 T2 DE 69317038T2 DE 69317038 T DE69317038 T DE 69317038T DE 69317038 T DE69317038 T DE 69317038T DE 69317038 T2 DE69317038 T2 DE 69317038T2
Authority
DE
Germany
Prior art keywords
record carrier
magnetic record
magnetic
carrier
record
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
Application number
DE69317038T
Other languages
English (en)
Other versions
DE69317038D1 (de
Inventor
Shinji Miyazaki
Mitsuru Takai
Koji Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Corp
Original Assignee
TDK Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TDK Corp filed Critical TDK Corp
Publication of DE69317038D1 publication Critical patent/DE69317038D1/de
Application granted granted Critical
Publication of DE69317038T2 publication Critical patent/DE69317038T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G11B5/73—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
    • 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
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • G11B5/672—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having different compositions in a plurality of magnetic layers, e.g. layer compositions having differing elemental components or differing proportions of elements
    • 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
    • G11B5/736—Non-magnetic layer under a soft magnetic layer, e.g. between a substrate and a soft magnetic underlayer [SUL] or a keeper 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
    • G11B5/7368—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
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12931—Co-, Fe-, or Ni-base components, alternative to each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
  • Physical Vapour Deposition (AREA)
DE69317038T 1992-12-03 1993-11-30 Magnetischer Aufzeichnungsträger Expired - Fee Related DE69317038T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP35004592 1992-12-03
JP5302215A JPH06223356A (ja) 1992-12-03 1993-11-09 磁気記録媒体

Publications (2)

Publication Number Publication Date
DE69317038D1 DE69317038D1 (de) 1998-03-26
DE69317038T2 true DE69317038T2 (de) 1998-06-10

Family

ID=26563021

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69317038T Expired - Fee Related DE69317038T2 (de) 1992-12-03 1993-11-30 Magnetischer Aufzeichnungsträger

Country Status (5)

Country Link
US (1) US5549979A (de)
EP (1) EP0600716B1 (de)
JP (1) JPH06223356A (de)
KR (1) KR0130039B1 (de)
DE (1) DE69317038T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69417157T2 (de) * 1993-11-30 1999-12-23 Tdk Corp Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung
GB0307745D0 (en) * 2003-04-03 2003-05-07 Microemissive Displays Ltd Method and apparatus for depositing material on a substrate
US20080226817A1 (en) * 2003-05-30 2008-09-18 Seagate Technology Llc Tilted perpendicular magnetic recording media and method and apparatus therefor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584847B1 (fr) * 1985-07-15 1987-10-16 Bull Sa Support d'enregistrement perpendiculaire magnetiquement anisotrope
JP2597685B2 (ja) * 1988-11-11 1997-04-09 松下電器産業株式会社 磁気記録媒体
JPH0321966A (ja) * 1989-06-19 1991-01-30 Sharp Corp 複写機の露光制御装置
JPH03130919A (ja) * 1989-07-07 1991-06-04 Matsushita Electric Ind Co Ltd 磁気記録媒体
US5055358A (en) * 1989-09-29 1991-10-08 Libbey-Owens-Ford Co. Low reflectance films for transparent substrates
JPH0721858B2 (ja) * 1989-12-11 1995-03-08 松下電器産業株式会社 磁気記録媒体およびその製造方法
JP2730270B2 (ja) * 1990-06-05 1998-03-25 富士電機株式会社 磁気記録媒体およびその潤滑剤層の潤滑剤配向度評価法
US5344706A (en) * 1991-10-01 1994-09-06 Carnegie Mellon University Magnetic recording medium comprising an underlayer and a cobalt samarium amorphous magnetic layer having a SmCo5 crystalline interface with the underlayer

Also Published As

Publication number Publication date
JPH06223356A (ja) 1994-08-12
EP0600716B1 (de) 1998-02-18
EP0600716A1 (de) 1994-06-08
KR940016009A (ko) 1994-07-22
US5549979A (en) 1996-08-27
DE69317038D1 (de) 1998-03-26
KR0130039B1 (ko) 1998-04-07

Similar Documents

Publication Publication Date Title
DE69307755D1 (de) Magnetischer Aufzeichnungsträger
DE69314672D1 (de) Magnetischer Aufzeichnungsträger
DE69213115D1 (de) Magnetischer Aufzeichnungsträger
DE69334269D1 (de) Magnetkopfträger
DE69326124T2 (de) Magnetischer Aufzeichnungsträger
DE69332536T2 (de) Magnetischer aufzeichnungsträger
DE69128215T2 (de) Magnetischer Aufzeichnungsträger
DE69304178D1 (de) Aufzeichnungsträger
DE68925792D1 (de) Magnetischer Aufzeichnungsträger
DE68928218D1 (de) Magnetischer Aufzeichnungsträger
DE69413598T2 (de) Magnetischer Aufzeichnungsträger
DE69226355D1 (de) Magnetischer aufzeichnungsträger
DE69410974D1 (de) Magnetischer Aufzeichungsträger
DE69412058D1 (de) Magnetischer Aufzeichungsträger
DE68925045D1 (de) Magnetischer Aufzeichnungsträger
DE69319652D1 (de) Magneto-optischer Aufzeichungsträger
DE69216780D1 (de) Magnetischer aufzeichnungsträger
DE69118671D1 (de) Magnetischer Aufzeichnungsträger
DE69317038T2 (de) Magnetischer Aufzeichnungsträger
DE69323128D1 (de) Magnetischer Aufzeichnungsträger
DE69024587D1 (de) Magnetischer Aufzeichnungsträger
DE69408203D1 (de) Magnetischer Aufzeichnungsträger
DE69116433D1 (de) Magnetischer Aufzeichnungsträger
DE69325214D1 (de) Magnetischer Aufzeichnungsträger
DE69411476D1 (de) Magnetischer Aufzeichnungsträger

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee