DE69836238D1 - Magnetisches Aufzeichnungsmedium - Google Patents

Magnetisches Aufzeichnungsmedium

Info

Publication number
DE69836238D1
DE69836238D1 DE69836238T DE69836238T DE69836238D1 DE 69836238 D1 DE69836238 D1 DE 69836238D1 DE 69836238 T DE69836238 T DE 69836238T DE 69836238 T DE69836238 T DE 69836238T DE 69836238 D1 DE69836238 D1 DE 69836238D1
Authority
DE
Germany
Prior art keywords
recording medium
magnetic recording
magnetic
medium
recording
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 - Lifetime
Application number
DE69836238T
Other languages
English (en)
Other versions
DE69836238T2 (de
Inventor
Masashi Aonuma
Shinji Saito
Hitoshi Noguchi
Nobuo Yamazaki
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.)
Fujifilm Corp
Original Assignee
Fuji Photo Film Co Ltd
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
Priority claimed from JP8067097A external-priority patent/JPH10275326A/ja
Priority claimed from JP20165997A external-priority patent/JPH10228629A/ja
Priority claimed from JP22669897A external-priority patent/JP3859833B2/ja
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Application granted granted Critical
Publication of DE69836238D1 publication Critical patent/DE69836238D1/de
Publication of DE69836238T2 publication Critical patent/DE69836238T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70605—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys
    • G11B5/70621—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys containing Co metal or alloys
    • 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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y10T428/257—Iron oxide or aluminum oxide
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less

Landscapes

  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Magnetic Record Carriers (AREA)
DE69836238T 1997-03-31 1998-03-31 Magnetisches Aufzeichnungsmedium Expired - Lifetime DE69836238T2 (de)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP8067097A JPH10275326A (ja) 1997-03-31 1997-03-31 磁気ディスク
JP8066997 1997-03-31
JP8066997 1997-03-31
JP8067097 1997-03-31
JP20165997 1997-07-28
JP20165997A JPH10228629A (ja) 1997-07-28 1997-07-28 磁気記録媒体
JP22669897A JP3859833B2 (ja) 1997-08-22 1997-08-22 磁気記録媒体
JP22669897 1997-08-22

Publications (2)

Publication Number Publication Date
DE69836238D1 true DE69836238D1 (de) 2006-12-07
DE69836238T2 DE69836238T2 (de) 2007-02-08

Family

ID=27466463

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69836238T Expired - Lifetime DE69836238T2 (de) 1997-03-31 1998-03-31 Magnetisches Aufzeichnungsmedium

Country Status (3)

Country Link
US (1) US6432503B2 (de)
EP (1) EP0869482B1 (de)
DE (1) DE69836238T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001001402A1 (fr) * 1999-06-28 2001-01-04 Teijin Limited Support d'enregistrement magnetique
JP2001076333A (ja) * 1999-09-07 2001-03-23 Fuji Photo Film Co Ltd 磁気記録媒体
JP2001093224A (ja) * 1999-09-22 2001-04-06 Sankyo Seiki Mfg Co Ltd フロッピーディスク駆動装置
JP2002015415A (ja) 2000-06-29 2002-01-18 Fuji Photo Film Co Ltd 磁気ディスク
JP2002042325A (ja) * 2000-07-24 2002-02-08 Fuji Photo Film Co Ltd 磁気記録媒体
JP2002092849A (ja) * 2000-09-20 2002-03-29 Fuji Photo Film Co Ltd 磁気記録媒体
JP2002183942A (ja) * 2000-12-15 2002-06-28 Fuji Photo Film Co Ltd 磁気テープ
US6914742B1 (en) 2001-06-22 2005-07-05 Seagate Technology Llc Data storage assembly with robust servo writing methodology
US6785082B2 (en) 2001-10-30 2004-08-31 Seagate Technology Llc Disc drive servo track writer utilizing low-density gas
JP4143713B2 (ja) * 2002-03-07 2008-09-03 Ｄｏｗａエレクトロニクス株式会社 磁気記録用の磁性粉
JP2003317231A (ja) * 2002-04-16 2003-11-07 Fuji Photo Film Co Ltd 磁気記録媒体
JP2003317226A (ja) * 2002-04-16 2003-11-07 Fuji Photo Film Co Ltd 磁気記録媒体
US7368188B2 (en) * 2004-01-30 2008-05-06 Fujifilm Corporation Magnetic recording medium
JP2006079711A (ja) * 2004-09-09 2006-03-23 Fuji Photo Film Co Ltd 磁気ディスクカートリッジ
JP2007273037A (ja) * 2006-03-31 2007-10-18 Fujifilm Corp 磁気記録媒体およびその製造方法

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Also Published As

Publication number Publication date
DE69836238T2 (de) 2007-02-08
EP0869482A1 (de) 1998-10-07
US20010003630A1 (en) 2001-06-14
EP0869482B1 (de) 2006-10-25
US6432503B2 (en) 2002-08-13

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Legal Events

Date Code Title Description
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Owner name: FUJIFILM CORP., TOKIO/TOKYO, JP

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