TW355793B - Magnetic recording media - Google Patents

Magnetic recording media

Info

Publication number
TW355793B
TW355793B TW086113760A TW86113760A TW355793B TW 355793 B TW355793 B TW 355793B TW 086113760 A TW086113760 A TW 086113760A TW 86113760 A TW86113760 A TW 86113760A TW 355793 B TW355793 B TW 355793B
Authority
TW
Taiwan
Prior art keywords
chrome
recording media
magnetic recording
spot
magnetic
Prior art date
Application number
TW086113760A
Other languages
English (en)
Inventor
Migaku Takahashi
Junichi Nakai
Original Assignee
Migaku Takahashi
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 Migaku Takahashi filed Critical Migaku Takahashi
Application granted granted Critical
Publication of TW355793B publication Critical patent/TW355793B/zh

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
    • G11B5/64—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
    • G11B5/656—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing Co
    • 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
    • G11B5/7373—Non-magnetic single underlayer comprising chromium
    • 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
    • Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
    • 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
    • Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
    • Y10T428/12826—Group VIB metal-base component
    • Y10T428/12847—Cr-base component
    • Y10T428/12854—Next to Co-, Fe-, or Ni-base component

Landscapes

  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Liquid Crystal (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Paints Or Removers (AREA)
TW086113760A 1997-03-28 1997-09-22 Magnetic recording media TW355793B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1997/001090 WO1998044490A1 (fr) 1997-03-28 1997-03-28 Support d'enregistrement magnetique

Publications (1)

Publication Number Publication Date
TW355793B true TW355793B (en) 1999-04-11

Family

ID=14180342

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086113760A TW355793B (en) 1997-03-28 1997-09-22 Magnetic recording media

Country Status (8)

Country Link
US (1) US6555248B1 (zh)
EP (1) EP0971340B1 (zh)
JP (1) JP3724814B2 (zh)
KR (1) KR100514302B1 (zh)
AT (1) ATE313145T1 (zh)
DE (1) DE69734895T2 (zh)
TW (1) TW355793B (zh)
WO (1) WO1998044490A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6596341B1 (en) * 2000-07-25 2003-07-22 Seagate Technology Llc Method of manufacturing magnetic recording media with high SNR and high thermal stability
US7273666B2 (en) * 2001-06-29 2007-09-25 Fujitsu Limited Magnetic recording medium and magnetic recording medium driving apparatus
JP2003178423A (ja) * 2001-12-12 2003-06-27 Fuji Electric Co Ltd 長手記録用磁気記録媒体およびその製造方法
JP2008123626A (ja) 2006-11-14 2008-05-29 Hitachi Global Storage Technologies Netherlands Bv 垂直磁気記録媒体及びこれを用いた磁気記憶装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5082750A (en) * 1988-10-21 1992-01-21 Kubota Ltd. Magnetic recording medium of thin metal film type
DE69434907D1 (de) * 1993-07-21 2007-02-15 Migaku Takahashi Magnetisches aufzeichnungsmedium und dessen herstellung
US5625576A (en) 1993-10-01 1997-04-29 Massachusetts Institute Of Technology Force reflecting haptic interface

Also Published As

Publication number Publication date
ATE313145T1 (de) 2005-12-15
DE69734895D1 (de) 2006-01-19
EP0971340B1 (en) 2005-12-14
KR100514302B1 (ko) 2005-09-13
EP0971340A4 (en) 2000-03-22
WO1998044490A1 (fr) 1998-10-08
JP3724814B2 (ja) 2005-12-07
US6555248B1 (en) 2003-04-29
KR20010005787A (ko) 2001-01-15
EP0971340A1 (en) 2000-01-12
DE69734895T2 (de) 2006-08-03

Similar Documents

Publication Publication Date Title
DE69016725D1 (de) Aufzeichnungsträger, Verfahren und Informationsaufzeichnungsanordnung zum Erhalten derartiger Aufzeichnungsträger, sowie Informationsaufzeichnungsanordnung mit Antikopiermitteln zum Verhindern ungewünschter Kopiervorgänge.
MY109087A (en) Production of carbon black
US5316344C1 (en) Stationery with removable printable labels and method therefor
SG48525A1 (en) Suspension for supporting magnetic head slider and head gimbal assembly with the suspension and the slider
EP0647936A3 (en) Improved sliders, air bearing, for magnetic head.
DE69105351T2 (de) Aufzeichnungsgerät zum Aufzeichnen von Informationen mit einem elektromagnetischen Richtstrahl und Aufzeichnungskopf hierfür.
HK1000424A1 (en) Hard carbon coating-clad base material
EP0555056A3 (en) Magnetic iron oxide particles, a process for producing the same and a magnetic recording medium
DE69825730D1 (de) Vorrichtung zur magnetischen aktivierung von festen, flüssigen und gasförmigen medien, insbesondere kohlenstaub und kohlenwasserstoffbrennstoffen
TW355793B (en) Magnetic recording media
EP0670226A3 (en) Method for recycling a recording material deposited according to an image and recycling apparatus therefor.
DE69807590T2 (de) Verfahren zur Direktreduktion von Eisenerzen mit reduziertem Kraftstoffverbrauch und Kohlenstoffmonoxid Emission
EP0624871A3 (fr) Tête magnétique d'écriture pour enregistrement magnéto-optique.
AU5859080A (en) Carbon steel and low alloy steel with bottom blowing b.o.f.
GB2395347B (en) Recording head writer with high magnetic moment material at the writer gap and associated process
EP0614928A3 (en) Process for the preparation of copolymers of carbon monoxide and ethylenically unsaturated compounds.
EP0624872A3 (en) Magnetic recording and / or reproducing device.
EP0632084A3 (en) Copolymers of carbon monoxide and an ethylenically unsaturated compound and process for producing these copolymers.
Mathur et al. Indian stainless steel industry: present status and future prospects
DE69313543T2 (de) Verbundkörper
EP0604849A3 (en) Magnetic iron oxide containing cobalt and process for its production.
MY112373A (en) Method for producing reducible iron-containing material having less clustering during direct reduction and products thereof.
EP0608643A3 (en) Magneto-optical recording medium and method for reproducing from the magneto-optical recording medium.
Mehta United States Exporters and European Environmental Compliance
GB9720332D0 (en) Process for the copolymerisation of carbon monoxide with an olefinically unsaturated compound and new copolymers