JP2004071131A - 磁気記録媒体 - Google Patents

磁気記録媒体 Download PDF

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Publication number
JP2004071131A
JP2004071131A JP2003005227A JP2003005227A JP2004071131A JP 2004071131 A JP2004071131 A JP 2004071131A JP 2003005227 A JP2003005227 A JP 2003005227A JP 2003005227 A JP2003005227 A JP 2003005227A JP 2004071131 A JP2004071131 A JP 2004071131A
Authority
JP
Japan
Prior art keywords
magnetic
layer
upper layer
lower layer
thickness
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
Application number
JP2003005227A
Other languages
English (en)
Japanese (ja)
Other versions
JP2004071131A5 (enExample
Inventor
Atsushi Kato
加藤　篤
Naoyuki Numata
沼田　直行
Junji Kagawa
加川　純司
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP2003005227A priority Critical patent/JP2004071131A/ja
Priority to US10/442,720 priority patent/US6929850B2/en
Priority to FR0307123A priority patent/FR2841032B1/fr
Publication of JP2004071131A publication Critical patent/JP2004071131A/ja
Publication of JP2004071131A5 publication Critical patent/JP2004071131A5/ja
Priority to US11/117,850 priority patent/US6989203B2/en
Priority to US11/118,251 priority patent/US6972158B2/en
Abandoned legal-status Critical Current

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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
    • G11B5/716—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 two or more magnetic 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
    • 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.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • 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

Landscapes

  • Magnetic Record Carriers (AREA)
JP2003005227A 2002-06-14 2003-01-14 磁気記録媒体 Abandoned JP2004071131A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2003005227A JP2004071131A (ja) 2002-06-14 2003-01-14 磁気記録媒体
US10/442,720 US6929850B2 (en) 2002-06-14 2003-05-21 Magnetic recording medium
FR0307123A FR2841032B1 (fr) 2002-06-14 2003-06-13 Support d'enregistrement magnetique
US11/117,850 US6989203B2 (en) 2002-06-14 2005-04-29 Magnetic recording medium
US11/118,251 US6972158B2 (en) 2002-06-14 2005-04-29 Magnetic recording medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002173544 2002-06-14
JP2003005227A JP2004071131A (ja) 2002-06-14 2003-01-14 磁気記録媒体

Publications (2)

Publication Number Publication Date
JP2004071131A true JP2004071131A (ja) 2004-03-04
JP2004071131A5 JP2004071131A5 (enExample) 2005-04-07

Family

ID=29714383

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003005227A Abandoned JP2004071131A (ja) 2002-06-14 2003-01-14 磁気記録媒体

Country Status (3)

Country Link
US (3) US6929850B2 (enExample)
JP (1) JP2004071131A (enExample)
FR (1) FR2841032B1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006012361A (ja) * 2004-06-29 2006-01-12 Fuji Photo Film Co Ltd 磁気記録媒体
JP2008139456A (ja) * 2006-11-30 2008-06-19 Fuji Xerox Co Ltd 帯電装置、並びにこれを用いた画像形成装置、及び画像形成ユニット

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2640268B2 (ja) * 1989-03-14 1997-08-13 富士写真フイルム株式会社 磁気記録媒体
DE4204739A1 (de) 1991-02-18 1992-09-03 Fuji Photo Film Co Ltd Magnetisches aufzeichnungsmaterial

Also Published As

Publication number Publication date
US6929850B2 (en) 2005-08-16
FR2841032B1 (fr) 2008-04-18
US20040048107A1 (en) 2004-03-11
US20050196640A1 (en) 2005-09-08
FR2841032A1 (fr) 2003-12-19
US6989203B2 (en) 2006-01-24
US6972158B2 (en) 2005-12-06
US20050186451A1 (en) 2005-08-25

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